Nushagak sonar salmon enumeration project, 1986 · 2019. 4. 9. · This report presents results of...
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! J 0 BRISTOL BAY DATA REPORT NO. 87-3 ARLIS Alaska Resources Library & Information Services Library Building. Suile Ill 3211 Providence Drive AK 99508-U>l-1- NUSHAGAK SONAR SALMON ENUMERATION PROJECT, 1986 By Steven P. Morstad Fisheries Technician and R. Eric Minard Fisheries Biologist ALASKA DEPARTMENT OF FISH AND GAME DIVISION OF COMMERCIAL FISHERIES DILLINGHAM, ALASKA February, 1988 Srj )!'j p/1- {\ a. 'l.
Transcript of Nushagak sonar salmon enumeration project, 1986 · 2019. 4. 9. · This report presents results of...
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BRISTOL BAY DATA REPORT NO. 87-3
ARLIS Alaska Resources Library & Information Services
Library Building. Suile Ill 3211 Providence Drive
Anchorage~ AK 99508-U>l-1-
NUSHAGAK SONAR SALMON ENUMERATION
PROJECT, 1986
By
Steven P. Morstad Fisheries Technician
and
R. Eric Minard Fisheries Biologist
ALASKA DEPARTMENT OF FISH AND GAME
DIVISION OF COMMERCIAL FISHERIES
DILLINGHAM, ALASKA
February, 1988
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AREA DATA REPORTS: This series of reports is designed to facilitate archiving of small data sets and internal agency information. It generally consists of data sets of less significant nature that frequently are combined on an annual basis and published through the ADF&G Technical Data Report Series. This series also includes noteworthy field observation, feasibility ~tudies, Board of Fisheries Reports and staff meeting notes. To pranote documentation of as many observations as possible which would otherwise ranain unreported, this informal report series receives very little editing, thus caution is recommended in use of data and any analysis persented within.
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TABLE OF CONTENTS
Page
LIST OF TABLES...................................................... iii
LIST OF FIGURES ......................•...............•........ ·...... iv
LIST OF APPENDICES.................................................. v
INTRODUCTION........................................................ 1
METHODS AND MATERIALS .....................•.........................
Sonar Equipment .....•..........................•................. Species Apportionment ...........•.........•...................... Age, Sex, and Length Sampling ................................... . Climatological Data ..•.....................•...................... Pacific Salmon Distribution Experiment .........................•.
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1 4 4 4 5
RESULTS............................................................. 5
Escapement Estimates. . . . . . . . . . . . . . . . . . . . . . . . . . . . • . . . . . . . . . . . . . . . . 5 Age, Sex, and Length Samp 1 i ng. . . . . . . . . . . . . . . • • . . . . . • . . . . . . . . . . . . . 14 Climatological Data.............................................. 14 Pacific Salmon Distribution Experiment........................... 14
LITERATURE CITED.................................................... 19
APPENDIX............................................................ 20
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Table I.
LIST OF TABLES
North bank daily sonar counts and species apportionment data collected on the Nushagak River, Bristol Bay, Alaska, 1986.. .. . .. .. . . .. . . . • ... . . .. •. .. . . . .• . .. . . . . . . . . . . 6
Table 2. South bank daily sonar counts and species apportionment data collected on the Nushagak River, Bristol Bay, Alaska, 1986 ............................................. .
Table 3. Daily salmon escapement, by species, into the Nushagak River as estimated by sonar, 1986 ........................ .
Table 4. Climatological and stream observations recorded at the
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Nushagak River sonar site, 1986........................... 16
Table 5. Hourly counts from Lower and Upper transducers, Nushagak River, Bristol Bay, Alaska, 1986 ................ . 18
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LIST OF FIGURES
Figure Page
1. Location of Nushagak sonar site................................. 2
2. North and south bank sonar coverage and river bottom contour at sonar sites, 1986 .•.....•.............•.......•.......•...... 3
3. Daily chinook salmon escapement into the Nushagak River, 1986............................................................ 12
4. Daily sockeye salmon escapement into the Nushagak River, 1986. • • • • • • • • • • • • • • • • • • • • • • e • • • • • • • • • • • • • • • • e • • • • • • • • • • e • • e • • • • • 12
5. Daily chum salmon escapement into the Nushagak River, 1986...... 12
6. Daily coho salmon escapement into the Nushagak River, 1986...... 12 0
7. Pink salmon escapement into the Nushagak River, 1986............ 13
8. Fish distribution for North and South bank sonar sites, 1986.... 15
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.'] LIST OF APPENDICES
Appendix Page
A. Chinook salmon daily and average daily escapement into the Nushagak River as estimated by sonar, 1980-1986 .......•......... 20
::J B. Chinook salmon daily and average daily cumulative escapement into the Nushagak River as estimated by sonar, 1980-1986 ........ 22
c. Sockeye salmon daily and average daily escapement into the Nushagak River as estimated by sonar, 1980-1986 ................. 24
:) D. Sockeye salmon daily and average daily cumulative escapement into the Nushagak River as estimated by sonar, 1980-1986 ........ 27
E. Chum salmon daily and average daily escapement into the Nushagak River as estimated by sonar, 1980-1986 .............•..• 30
0 F. Chum salmon daily and average daily cumulative escapement into I the Nushagak River as estimated by sonar, 1980-1986 .....•..••... 32
G. Pink salmon daily and average daily escapement into the Nushagak River as estimated by sonar, 1980-1986 •....•.......•••• 34
0 H. Pink salmon daily and average daily cumulative escap~ment into the Nushagak River as estimated by sonar, 1980-1986 .••.....••••• 36
I. Coho salmon daily and average daily escapement into the Nushagak river as estimated by sonar, 1982-1986 ................• 38
0 J. Coho salmon daily and average daily cumulative escapement into the Nushagak River as estimated by sonar, 1980-1986 ............. 40
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INTRODUCTION
This report presents results of the Pacific salmon enumeration project using side scanning sonar conducted on the Nushagak River, Bristol Bay, Alaska in 1986. Since the inception of this program in 1979 (McBride and Mesiar 1981) specific objectives have been (1) to accurately estimate the abundance of the five species of Pacific salmon escaping into the Nushagak River from the commercial fishery, and (2) to collect age, weight, length data for sockeye, chum, and coho salmon.
In all past years, the transducer beam of the side scanning units has been aimed just above the bottom of the river since visual observations in clear water indicated this was the area where most migrating Pacific salmon traveled. However, we have observed many Pacific salmon rolling and finning at river surface at the sonar site, and we have caught many Pacific salmon in the upper portion of gill nets. This led us to set up a study this season to determine whether a significant number of Pacific salmon were swimming above the sonar beam and, thus, were not being counted.
The sonar site and field camp are located near the village of Portage Creek, about SO km (32 mi) from the terminus of the Nushagak commercial fishing district (Figure 1). The river channel at the sonar site is about 335 m wide with water current speeds between 1.22 and 2.13 mjsec. Maximum water depth, which occurs towards the middle of the river channel, is about 4.6 m. Water depth 18 m offshore of the north and south banks is about 2.0 meters and 3.0 meters, respectively.
METHODS AND MATERIALS
Sonar Equipment
Two modified 1981 side scanning sonar units, purchased from Bendix Corporation, were installed at the Nushagak River counting site on 6 June. Modifications of these counters were based on results of field tests of a Bendix Corporation experimental side scanning unit conducted on the Nushagak River in 1984 (Minard, 1984). These modifications eliminated the need for a substrate, increased the counting range from a maximum of 30 m to a maximum of 500 m, raised sensitivity of the units, allowed the equipment to ignore rocks and other stationary objects within the beam, and enhanced the units capability to discriminate between large· (chinook) and small (sockeye, chum and pink) Pacific salmon.
To take advantage of the increased operating range of the modified units, one transducer was placed in relatively deep (2.5 m) water about 23 m from the north bank (Figure 2). The deep water location of this transducer made it impractical to install a weir from shore in order to
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South Bank
b i • lC
..., North Bank
r~--~-c·~--~-~~1:::::::::::::----~-----------------=,:: ~~ .::-: -= -
F •
'5 ~~~~~~~~------------
Water level·--------------
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Heter~
figure_2. North and south bank.sonar coverage and river bottom contour at sonar sites, 1986.
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direct Pacific salmon migrating close to the bank out into the path of the sonar beam. Therefore, a second sonar unit, with a transducer placed only 7 m from the north bank in water 0.8 m deep, was used in conjunction with a weir to count Pacific salmon migrating closer to the bank.
A single sonar unit in conjunction with a weir was used on the south bank about 200 m downriver from the location used in 1984. The transducer from this unit was placed about 23 m from shore where the water depth was 2.0 m (Figure 2).
To maintain counting accuracy at 90 percent, calibrations were made by adjustment of the velocity setting (ping rate) on each counter whenever necessary. Ca 1 i brati ons were based on comparisons of machine counts to visual counts made from an oscilloscope (Minard 1982; Minard and Frederickson 1983).
Species Apportionment
Daily estimates of the total number of Pacific salmon migrating past the sonar site were apportioned by species from samples collected with a beach seine and gill nets. Two different gill nets were used: one with 21.5 em stretched mesh and another with 13.6 em stretched mesh. Gill nets were drifted from outboard powered boats at various locations along the sonar site transect.
A sample period was defined as the time required to capture 150 Pacific salmon and ranged from one to several days. Species composition estimates within each sample period were made separately for each river bank. Estimates were applied to total sonar counts for the north and south banks during the same sample period to determine daily escapement by species.
Age, Sex, and Length Sampling
Sockeye, chum and coho salmon captured with the beach seine were sampled for age, sex, and length data. Age was determined from scale samples, sex was determined by visual inspection, and length (mid-eye to fork tail) was recorded to the nearest mm using a measuring board. All data was transcribed onto mark-sense forms for subsequent analyses.
C7imato7ogica7 Data
Weather data were collected twice daily at the sonar site. Precipitation was measured using a Taylor Clear View rain gauge, wind direction and velocity were estimated, while air and surface water temperatures were
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measured to the nearest tenth of a degree with hand-held mercury thermometers.
Pacific Salmon Distribution Experiment
An experimental Bendix Corporation side scanning sonar unit was used to determine whether large numbers of Pacific salmon migrated above the path of a sonar beam aimed just above the river bottom. Two transducers, mounted on the same stand, were connected to the experimental unit. One transducer was mounted at the bottom of the stand and aimed just above the river bottom. The other was mounted 36.8 em higher on the stand and aimed so that its beam was parallel to the one from the lower transducer.
RESULTS
Escapement Estimates
A total of 1,128,777 counts was accumulated by all three modified Bendix Corporation sonar units during 6 June to 17 August (Tables 1 and 2). About 65% of the total counts (732,562) were obtained by the north bank units, while 35% of the total counts (396,215) were obtained by the south bank unit.
A total of 6,986 Pacific salmon were captured to estimate species composition (Tables 1 and 2). About 60% of the total sample (4,170 Pacific salmon) was obtained from north bank fishing sites, while 40% (2,826 Pacific salmon) were obtained from south bank fishing sites.
Species apportionment of sonar counts indicated that 802,324 sockeye, 43,434 chinook, 168,275 chum, 42,772 coho, and 72,189 pink salmon passed the sonar site during the season (Table 3). Coho salmon numbers and samples may not represent the total spawning escapement since the project ended, due to budget constraints, while coho salmon were still migrating past the sonar site. This may not have been a serious problem, .however, since the daily coho salmon estimate on the last day of operations was only 1% of the total season estimate.
Daily estimated passage of chinook, sockeye, and chum salmon at the sonar site was greatest during the first and second weeks of July (Figures 3-5). The greatest daily passage of coho salmon occurred on 3 August when· 8,951 were counted (Table 3; Figure 6), while pink salmon escapement was greatest on 30 July when 8,620 were counted (Table 3; Figure 7).
Run timing for chinook salmon was considered to be about one week late relative to past seasons (Appendices A, B, and K). Run timing for all other species was considered to be average (Appendices C-J and L-0).
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Table 1. North bank daily sonar counts and species apportionment data collected on the Nushagak River, Bristol Bay, Alaska, 1986.
Sonar Counts
Catch by Species Midnight Midnight
to Daily Sampling to Date 0600 1800 Total Hauls Chinook Sockeye Chum Pink Coho Total
6 6 7
8 9
10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30
7 1 2 3 4
5
6 7 8 9
0 3 6
0 3 0 4
15 79 51 27 28 6
66 96 86 35 30 84
180 2867 926
1871 1185 801
1687 4857 1199 1832 5286 2550 7648 8703 5317
0
14 12 13 59 12 34
210 335 157 118
80 26
303 311 168 308 222
3 20 12 14 85 14 50
304 375 185 180 96 52
557 438 240 518 306
209 571 1840 4425 5333 6328 4452 6451 6941 7870 3133 4206 3523 4922 3254 4899 8386 9476 3870 4963 5770 12543
19085 25471 19149 34269 22268 43921 30804 39773 22318 34030
0 15 15 15 . 10 15 20 15 15 15 20 15 15 20 20 15 15 25 25 16 12 11 12 10 23 18 17 17 10 11 10 12 16 16
0
0 0
0
0
0
0
1 0 0 0
0 0 2
0 0
0 1 5 3 3 1 3 5
0
1
1 0
0 2 3 4 8
0
0
0 0
0 0
0 0 0
0
0 0 0 1 2 1 0
0
0 0
0
0 0 0
2 3
1 0
0
0
0
1 0
0 0 3
0 0
44 91 27 74 13 35 4 85 0 15
15 40 39 17
107 34 97 27
184 24 177 25 184 13 127 2 145 10 217 23
-Continued-
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0 0
0 0 0 0 0
0
0
0
0
0
0 0 0
0 0
0 0 0 0
0 0
0
0
0 0 0 0 0
0 0 0 0
0 0
0 0 0
0
0
0
0
0
0 0
0
0 0
0 0 0
0
0
0
0 0
0
2 4 1 0
0 0 0 4
3 1 0 3
0 1 0 140 0 104 0 51 0 90 0 18 0 60 0 56 o, 142 0 125 0 208 0 202 0 199 0 132 0 159 0 248
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Table 1. (Page 2 of 2)
Sonar Counts
Catch by Species Midnight Midnight
to to Daily Sampling Date 0600 1800 Total Hauls Chinook Sockeye Chum Pink Coho Total
7 10 11 12 13 14 15 16 17 18 19 20 21 22
23 24 25 26 27 28 29 30 31
8 I 2 3 4
5 6
7
8
9
10 11 12 13
14 IS 16 17
9807 17758 33615 16052 4326 1443 1908 3213
681 579 393 372 154 192 579 353 120 1!5 120 165 236
59 166 187 211 681 212 85
148
109 31 25
196 43 58 94 74 37 70
53564 71442 94263 40564 10237 5653
13660 8915 3021 2967 1514 965 831
3824 4171 2430 1006 2302 2719 2279 1096 300 642 786
4890 3286 1509 647 491 344 302 438
1658 626 438 873 378 172 189
92159 111120 116255 47799 13363 7750
21332 10550 3628 3660 !933 1215 1441 6638 5295 2836 1340 2947 3192 3175 1298 430 820 990
8557 4120 1988 880
603 445 483
1225 1934 737 568
1376 477 271 225
14 !6 10 16 16 20 13. 10 IS 18 18 19 17 18 !6 17 17 IS 14 14 18 14 14 17 13 11 18 18 18 18 18 20 20 19 20 20 20 IS 5
5
0 5
4
3 5
5
0
5 3 I I I
2
0 2 3 1 0
I 0 0
0 0
0
I 0
0 I
0 0
0 0
0 0 0
0 0
7
186 505 !57 208
40 14 61 7 3 7 2 2 2
26 5
13 6
4 2 7 I 0 2 I 0 0 0 0 0 0 0 I 3 0 I
0 0 0
0
22 0 32 0 38 0 20 0
8 0 0 0
22 5
2 0
I 0 2 0
3 I 2 0
I I 4 69 3 10 7 32 0 2
3 5 I 107 0 45 I 0 4 0
0 4
0 0
0 260 0 0 2 0 0 2 I 0 0 0
0 0
0 I
I 0 0 0
0 I 0 I 0 0
0 0
0 0
0 0
0
0 0 0
I 0
0
0
0 0
0 8 0
4
0 0 4 2 0
0
0 5
76 6
8 3 2 2 I I
27 7
8
7 3 0
0
213 537 zoo 232
51 19 95
9
9 12 7
5
5 109
18 56 10 IS
115 54 3 4
6 6
336 6
11 5 3 3 I 3
3! 7
10 8 3 0
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Table 2. South bank daily sonar counts and species apportionment data collected on the Nushagak River, Bristol Bay, Alaska, 1986.
Sonar Counts
Catch by Species Midnight Midnight
to to Daily Sampling Date 0600 1800 Total Hauls Chinook Sockeye Chum Pink Coho Total
6 7
8 9
10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30
7. 1 2 3 4 5 6
7 8 9
10
0 4 0
11 42 22 23 3
12 0
19 48
156 150
73 259 89
295 916 470 835 726
1058 1392 1718 896 233
4223 4876 4886 2784 4140 5296
0 I 5 6
17 18 90 132 70 72
224 224 124 164
9 27 79 as 3 3
54 59 185 224 533 712 499 499 355 355 620 620 730 730
2801 3831 3916 5168 4900 8701 6147 7091 3239 3980 3272 3947 3206 3946 3345 4308 2106 2755 4291 8174
13827 17589 11302 15103 13828 17223 11362 13280 11621 14637 17061 25599
15 15 15 10 15 20 15 IS 15 20 15 15 20 20 15 15 25 25 18 19 12 IS 10 23 18 20 24 8
10 13 14 16 19 11
0
0 0
0 0
I 0
I 0
0
0
0 5 4 2 I 0 2 0
8 4 4 3
3
2 2 2 4 5 7
7 7 0
0 0 0 0 0 0 0 0 0 0
0 0
0 0
0 3 0 0 0 0
0 0
0 0
0 1 0 0
0 0 2 0 2 4 2 I 5 7
17 58 11 20 6 134 3 7 6 16
40 30 45 21 21 15
241 38 49 18 68 4
82 4
98 22 68 13
191 15
-Continued-
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0 0 0 0
0 0
0 0
0
0 0 0 0 0 0
0
0
0 0
0
0
0
0
0 0
0
0
0 0
0 0 0 0 0
0 0
0 0 0 0
0 0 0 0 0 1 0 0 0 4
0 0 0 0 0 0
0 0
0 6 0 4
0 2 0 3
0 6 0 5 0 12 0 83 0 35 0 144 0 13 0 25 0 71 0 68
0 38 0 281 0 71 0 77 0 93 0 127 0 88 0 206
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Table 2. (Page 2 of 2)
Sonar Counts
Catch by Species Midnight Midnight
to to Daily Sampling Date 0600 1800 Total Hauls Chinook Sockeye Chum Pink Coho Total
711 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31
8 1 2 3 4
5
6
7
8 9
10 11 12 13 14 15 16 17
10824 14938 8168 4152 2131 981
2209 949 828
1452 748 248 168
2056 441 387 283 545
1297 1504 449
1262
624 2253 1104 877 309
78 134
64 80
197 79 35 2p 73 18 20
29443 42219 36392 40374 24863 29089 9094 10747 6308 7358 4073 4951 4048 4422 2039 2539 2161 2805 2778 3095 1655 2134 534 732 925 1580
4821 5392 2879 3120 1177 1668 1776 2757 3674 4414 4905 5879 7857 9060 3198 4519 3961 5179 5274 8422 5020 6983 6737 8993 3913 4369 2244 2526
693 850 613 727 528 617 476 1017
3225 3794 1398 1563 664 785 796 1048 298 361 88 146
190 224
15 10 16 14 20 15 10 15 17 18 17 18 20 22 27 19 15 16 14 14 17 14 17 15 13 18 18 18 19 18 20 20 20 20 20 20 15
5
0
2 4 3 2 2 0 2 0
4 1 0
1 0 1 1 2 1 0
0
0 2 0 0
0 0
1 0
1 0
0 0 0 0 0
0
o. 0
9
279 18 0 195 39 0 219 29 1 49 0 3 9 0
25 5 6 13 1 0 2 1 0 2 3 0 6 5 1 3 0 0 5 2 0 2 1 0 0 1 0 4 0 3 4 0 2 3 0 0 3 1 42 3 0 29 0 0 32 0 0 5 0 0 50 0 0 108 0 0 0 0 0 3 1 0 4 0 0 3 1 0 0 0 1 0 0 0 0 0 0 2 0 0 5 0 0 0 2 0 0 1 0 0 0 0 0 0 0 0 0 0 0
0 297 0 236 0 253 0 53 0 14 4 42 0 14 0 5 0 5 0 16 0 4 0 7 0 4
0 1 1 9 1 8 1 6 1 48 2 34 1 33 1 6 0 52
19 127 5 5 6 9 3 8 2 6 1 2 1 3 1 1 1 3
12 17 7 7
4 6
10 11 1 1 0 0 ~
05 0
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Table 3. Daily salmon. escapement, by species, into the Nushagak River, as estimated by sonar, 1986.
Chinook Sockeye Ch1J11
Date Daily Can. Daily C~m~. Daily Cum. Daily
6 6 7 8 9
10 11 12 13 14 IS 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30
7 I 2 3
4 5
6 7 8 9
10 11
I I 0 0 I 9 10 3 3 8 6 16 2 5 5
11 27 3 8 6 51 78 IS 23 37 41 119 6 29 8 82 201 IS 44 25
318 519 71 115 139 297 816 76 191 166 101 917 32 223 79 148 1065 37 260 80 43 1108 16 276 40 72 1180 14 290 25
424 1604 112 402 245 789 2393 141 543 220 525 2918 88 631 126 521 3439 119 750 235 188 3627 229 979 509 274 3901 270 1249 757 516 4417 1091 2340 6649 643 5060 3392 5732 7461 999 6059 4282 10014 9871 7 48 6807 1583 11597 12630 405 7212 853 12450 6843 443 7655 946 13396 7480 128 7783 587 4 19270 2843 181 7964 9468 28738 4135 187 8151 5414 34152 2117 82 8233 18067 52219 2568
782 9015 34648 86867 7630 1249 10264 44969 131836 3154 2256 12520 57760 189596 1128 1990 14510 46419 236015 4644 2192 16702 41217 277232 5551 1843 18545 104907 382139 11008 1111 19656 144139 526278 8089
2 10 IS
21 58 66 91
230 396 475 555 595 620 865
1085 1211 1446 1955 2712 9361
16822 26693 39323 46166 53646 56489 60624 62741 65309 72939 76093 77221 81865 87416 98424
106513 12 3891 23547 125352 651630 27386 133899
-Continued-
10
0 0
0
0
0
0
0 0 0
0
0 0
0 0
0 0 0
0
0 0 0
0 0 0
0
0 0 0 0 0 0 0 0 0
0 0
0
Pink
Cum.
0 0 0
0
0
0 0 0
0
0 0 0 0 0
0 0
0
0
0 0
0
0 0
0 0 0
0
0 0
0 0 0
0 0 0
0
0
Daily
0 0
0
0
0
0 0
0
0
0 0
0 0 0 0
0
0
0 0 0
0 0 0
0 0 0 0
0 0
0 0
0
0
0
0
0
0
Coho
Cum.
0 0
0 0
0 0 0
0 0
0 0
0 0
0
0 0
0
0 0
0 0
0
0
0 0 0
0
0 0
0 0 0 0 0 0 0
Total
Daily Cum.
2 3 20 23 13 36 20 56
103 159 55 214
122 336 528 864 539 1403 212 1615 265 1880 99 1979 Ill 2090 781 2871
1150 4021 739 4760 875 5635 926 6561
1301 7862 8256 16118
11496 27614 15152 42766 14961 57727 8101 65828 8869 74697 8845 83542
13784 97326 7718 105044
20717 125761 43060 168821 49372 218193 61144 279337· 53053 . 332390 48960 381350
117758 499108 153339 652447
0 156629 809076
0
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Table 3. (Page 2 of 2)
Chinook '· Sockeye Chun
Date Daily CIJII. Daily Cun. Daily Cum. Daily
7 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31
8 1 2 3 4 5 6 7 8 9
10 11 12 13 14 15 16 17
1247 24794 1447 26241 3045 29286 1166 30452 3097 33549 1146 34695 1176 35871 936 36807 738 37545 398 37943 288 38231 808 39039 463 39502 618 40120
1168 41288 120 41408
0 41408 182 41590
60 41650 50 41700 0 41700 0 41700
787 42487 381 42868 204 43072 87 43159 72 43233 66 43299
135 43434 0 43434 0 43434 0 43434 0 43434 0 43434 0 43434 0 43434
68323 719953 20310 740263 7280 747543
17099 764642 6942 773584 3798 777382 4005 781387 2255 783642 1820 785482 878 786340
2273 788613 3589 792202 2015/ 794217 1370 795587 2557 798144 329 798473 847 799320 182 799502
60 799562 205 799767 248 800015
0 800015 683 800678 322 801000 178 801178
69 801247 58 801305 52 801357 98 801455
193 801648 224 801872 123 801995 195 802190
67 802255 31 802286 38 802324
7314. 141213 0 2138 143351 215 4709 148060 0 5500 153560 1809 2933 156493 0 1223 157716 0 1284 159000 0 1481 160481 356 1136 161617 255 695 162312 202 752 163064 4330
1178 164242 4363 661 164903 2384 161 165064 625 354 165418 1239 120 165538 6853
0 165538 7728 922 166460 8620 305 166765 4297
0 166765 4828 0 166765 7738 0 166765 6589
641 167 406 3878 310 167716 1883 155 167871 1064 80 167951 386 65 168014 326 62 168076 284
141 168217 507 58 168275 1100 0 168275 66 0 168275 51 0 168275 124 0 168275 43 0 168275 24 0 168275 20
11
Pink
CLIIll.
0 215 215
2024 2024 2024 2024 2380 2635 2837 7167
11530 13914 14539 15778 22631 30359 36979 43276 48104 55842 62431 66309 68192 69256 69642 69968 70252 70759 71859 71925 71976 72100 72145 72169 72189
Coho
Daily Cum.
0 0 0 0 0 0
708 708 0 708 0 708 0 708 0 708 0 708 0 708
575 1283 748 2031 416 2447 234 2681 386 3067 184 3251 480 . 3731 453 4164 226 4410 914 5324
1426 6750 8951 15701 7144 22845 3461 26306 1804 831 681 636
1362 4376 2009 1179 2106
728 362 391
28110 28941 29622 30258 31620 35996 38005 39184 41290 42019 42381 42772
Total
Daily Cum.
76884 885960 24110 910070 15034 925104 26282 951386 14972 966358 6167 972525 6465 978990 5028 984018 3949 987967 2173 990140 8218 998358
10686 1009044 5939 1014983 3008 1017991 5704 1023695 7606 1031301 9055 1040356
10359 . 1050715 4948 1055663 5997 1061660 9412 1071072
15540 1086612 13113 1099725
6357 1106082 3405 1109487 1453 1110940 1202 1112142 1100 1113242 2243 1115485 5727 1121212 2299 1123511 1353 1124864 2425 1127289 838 112812& 417 '1128545 449 1128994
:)
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0
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! j
• • ' ... !
• n rr -· .... ... ... r~ ""' <DC
,~I e "' • "' .... ~= ... 0 u..:: u ...... ...,_
xq~ ?
0-3 \fl • ··- ...... . ...... ·-Date
Figure 3. Chinook Salmon
a;---------------~------------~ :j r
<;;~:l ~ ~~· QJ ~ , ..
~j::l ........ -. . .
• • ·~--~~~~~~~~~~~~~--. .... ·-
Date
Figure 5. Chum Salmon
·-~------------------------------••• . .. ... ... ... .. .. "'
~ I \, ·--~~.~~.-.... ~ ... ~·~~~«~~.~?·--
•. • 7
• • • • •
•
,.~ t.,.. ts...... , ....,.
Date
Figure 4. Sockeye Salmon
. ...... Date
Figure 6. Coho Salmon
Figures 3-6 Daily salmon escapement into the Nushagak River, by species, 1986.
12
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9~------------------------------------------~
8
7
IS (.~ ~
. \ I ' \ i \
5 ~'
3
2
1 I
0~~~~~~~~~~~~~-~1 15 Jul 1 Aug 1S Aug
Date
Figure 7. Pink salmon escapement into the Nushagak River, 1986 . ---
13
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Project operations and resulting data were considered to be much improved for several reasons. First, improvements in the sonar units .. has made them better suited to the physical characteristics of the Nushagak River. Their greater operating range coupled with elimination of the counting substrate suggested that most Pacific salmon passing the counting transect were traveling through the sonar beams. The lateral (sector) distribution of targets within the sonar beams increased from shore to about 10 m and 54 m on the north and south banks, respectively, and then decreased markedly with increasing distance from shore (Figure 8). In past years when counting substrates were used, the number of targets increased again at the outer limits of the counting range. This suggested that at least some Pacific salmon were swimming around the end of the counting substrate. Second, expansion of the sarnpl ing program should provide more accurate estimates of species composition. Lastly, the seasonal crew has become very experienced with daily operations and monitoring of the gear, making operations more efficient and resulting better quality control of data.
Age, Sex, Length Sampling
A total of 1,774 sockeye, 697 churn, and 79 coho salmon were sampled to obtain age, sex, and length data. Sample size objectives set forth in the 1986 Operational Plan {1,800 sockeye, 400 chum, and 400 coho salmon) were achieved only for sockeye and chum salmon. Few coho salmon were captured during the season (total coho salmon catch was 265) and only 30% were sampled to obtain age, sex, and length data.
Climatological Data
Daily records of climatological and stream observations were obtained during 5 June to 17 August (Table 4). Mean air and water temperatures for this period were 11.6 °C and 11.2 aC, respectively. Total precipitation was 203.25 mm.
Pacific Salmon Distribution Experiment
The experimental Bendix Corporation side scanning sonar unit was used to examine vertical distribution of Pacific salmon from 1 July at 2300 hours until 11 July at 0900 hours (Table 5). Although some Pacific salmon ·did pass above the 1 ower transducer beam, daily upper transducer counts· represented only 0.0% to 4.4% of daily lower transducer counts. For the entire 9 day period of the study, total counts from the upper transducer beam (623) represented only 0.6% of the total counts recorded from both transducers (100,632). These results supported the hypothesis that most Pacific salmon migrate close to the river bottom at the sonar site.
14
0..:11
r ·0.:.0
o.:: North Bank o.: I f 0.18
0.141 ..... c:: 0.14 Ql CJ 0.12 s.. Ql .... 0.1
0 ..... o.aa
0.04 \ J o.az
0 a· a , .. t7 ::z :7 .50
Meters
0..::1 o.:
. O.Ht o.ta South Bank 0.17 0.1.
0.10 0 .. 1•
+I 0 .. 1.5 c 0.12 ~ 0.1t s- 0 .. 1 ,f_o.at ~
a .as \ O.a7 \ o.ca o.ao 0.04 \
) o..os O.a:t ___.! O.ot
0 0 .... ""' , .. ""
Meters )
Figure 8. Fish di stri buti on for North and South bank sonar sites, 1986.
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Table 4. Climatological and stream observations recorded at the Nushagagk River sonar site, 1986.
Mean Sky Wind (KTS) Air Temp (C) Water Water Precipitation
Date 0800 2000 0800 2000 0800 2000 Temp Color (mm)
6 5 0 1 10-20 SE 12 9.0 4 0.00 6 2 0 1-3 SE 8 8.0 4 0.00 7 4 4 5 SE 1-2 SE 8 14 9.0 4 2.75 8 4 4 1 SE 1 SE 8 12 9.8 4 1.50 9 3 1 1-3 SE 2-4 SE 6 10.5 3 1. 25
10 4 3 1-3 NE 5-7 SE 8 12 10.0 3 0.00 11 4 4 Calm 20-30 SE 10 13 10.5 3 0.25 12 4 4 15-25 SE 2-4 SE 9 10 9.0 3 0.50 13 3 4 1-3 SE 10-12 SE 10 12 9.5 3 0.00 14 3 2 1-3 NE 3-5 sw 11 13 10.0 3 0.75 15 2 0 Calm 14 21 10.0 3 0.00 16 1 0 Calm 16 10.0 3 0.00 17 4 4 5-7 sw 11 13.0 3 0.00 18 4 4 5-10 sw 1-3 sw 10 13 12.8 3 0.00 19 4 4 Calm Calm 12 13 12.0 3 0.00 20 4 4 2-5 E 4-7 E 11 13 11.0 3 1.00 21 3 3 Calm 1-3 NE 13 11 10.5 3 0.25 22 3 3 Calm 10-15 SSW 9 13 11.0 3 0.00 23 4 3 1-3 ssw 10-15 ssw 9 8 11.0 3 2.50 24 4 4 4-5 sw 2-3 SE 9 12 10.0 3 5.50 25 3 3 1-3 sw 5-10 ssw 9 11 9.5 2 0.75 26 3 3 4-5 ssw 1-5 ssw 9 11 9.5 2 0.25 27 3 3 Calm Calm 10 13 e 10.3 2 Trac 28 4 3 Calm Calm 9 10 e 10.8 2 Trac 29 3 3 Calm Calm 9 14 11.0 3 0.50 30_ .. 3' 2 Calm 2-3 SE 9 22 13.0 3 0.50
7/1 1 1 Calm 2-3 SE 9 23 13.0 3 1. 75 2 1 3 Calm 3-4 SE 22 14.0 3 0.00 3 3 1 Calm 2-3 SE 12 17 12.8 3 0.00 4 4 2 1-3 SE 17 16.0 3 0.00 5 4 4 Calm 12 14.0 3 0.75 6 4 4 Calm 1-3 sw 13 16 13.0 3 6.00 7 5 4 5-7 SE 1-3 SE 9 12 12.0 3 1.25 ·a 4 4 Calm 1-3 sw 9 12 11.8 3 1.25 9 4 4 Calm 1-3 sw 10 14 12.0 3 1.00
10 4 2 Calm 11 18 12.0 3 0.50 11 2 15-20 sw 15-20 sw 12 18 13.0 3 0.00 12 4 4 5-6 sw 5-10 sw 11 11 11.0 2 0.00
-Continued-
16
.) . Table 4. (Page 2 of 2)
Mean ) Sky Wind (KTS) Air Temp (C) Water Water Precipitation
Date 0800 2000 0800 2000 0800 2000 Temp Color (mm)
7 13 3 2 1-2 sw Calm 11 16 12.0 2 0.00 14 5 4 2-7 E 5-10 WSW 8 12 11.0 2 Trac
.) 15 4 4 3-5 SE Calm 11 10 12.3 3 23.00 16 4 3 Calm 2-5 sw 10 14 11.5 3 7.00 17 3 2 1-3 sw 9 10.0 2 0.00 18 2 4 Calm 5-10 sw 9 16 12.0 3 0.00 19 4 3 2-5 sw 5-10 sw 13 17 14.0 3 0.00 20 4 1 1-3 sw 2-5 sw 12 19 14.8 2 1.25 21 5 4 1-2 SE 5-10 E 11 12 14.5 3 3.75 22 4 4 2-7 SE 5-10 s 12 12 13.0 4 34.75 23 4 3 5-10 sw 10-15 sw 10 11 12.0 4 0.50 24 4 3 5-10 sw 1-5 sw 9 11 11.8 4 0.00 25 4 2 Calm Calm 10 16 11.5 4 16.00 26 5 1 Calm 1-3 sw 4 19 11.1 4 0.00
::} 27 1 1 Calm Calm 5 26 11.5 3 0.00 28 1 1 Calm Calm 5 21 12.0 3 0.00 29 1 2 Calm 3 sw 7 21 13.5 3 0.00 30 3 4 1-5 SE 1-5 SE 12 14 12.8 3 1.25 31 4 4 1-5 sw 11 13 12.5 3 0.25
8 1 4 3 5-10 SE 20-30 SE 11 16 11.5 3 0.00 J 2 4 4 25-35 SE 3-5 SE 16 12 12.0 3 12.50
3 4 3 Calm Calm 8 14 11.5 2 25.00 4 4 4 Calm 3-5 sw 11 12 10.3 3 0.75 5 4 4 3-5 sw 3-5 sw 10 11 9.0 3 0.75 6 4 4 Calm 1-3 SE 11 13 9.5 4 0.50 7 4 4 1-3 SE 2-7 E 11 13 9.8 3 3.75
.) 8 4 4 5-7 NE 1-3 NE 10 16 9.8 3 1. 50 9 4 4 5-7 SE 3-7 SE 11 11 9.5 4 19.50
10 3 1 2-4 sw 1-5 sw 9 12 9.5 3 3.50 11 5 3 Calm 1 9.0 3 0.00 12 4 3 Calm 5-10 sw 8 12 10.0 4 6.50 13 4 4 3-6 sw 5-10 sw 10 10 9.8 4 0.50
) 14 2 2 5-10 sw Calm 9 9 9.0 3 10.00 15 5 2 Calm Calm 4 15 9.5 2 0.00 16 5 2 Calm Calm 3 13 9.8 2 0.00 17 ·4 0 Calm 9 10.5 2 0.00
)
17 )
v _._......___ __
..... (X)
(_) v u -··~-
v -~-
0 '--:. 0 :..) '-.! ~··-~--
Table 5. Hourly counts from Lower and Upper transducers, Nushagak River, Bristol Bay, Alaska, 1987
1 July 2 July 3 July 4 July 7 July 8 July 9 July 10 July 11 July
Hour lower Upper lower Upper Lower Upper lower Upper Lower Upper Lower Upper Lower Upper Lower Upper lower Upper
0000 0100 0200 0300
0400 0500
0600 0700
0800
0900 1000
1100 1200
1300
1400
1500 1600 1700
1800
1900
2000
2100
2200
2300 282
Tota 1 282
Upper as
Percent of lower
0
273 416 362 125
108
270 319
350 53
28
47 67
129
165 272 103 137
188 184
192
101
108
43
135
12 21 13 12 3
5 9
4 7 3
1 2 2 5
2 2 0
4 4 4
36
7 2 2
169 127
51 22
58 146 274
231 47
45
33 42
!57
73
114 113
48
148
91
71
77 102
146
112
0 4175 162 2497
0.0 3.9
20 6
10 8
10
!0 1 4 4 3
3 3 6
1
2 0
3 2 1 0 3 1 5
4
104 258 !54 131
72
100 132
257 109
123 67
55 81
170
147
199 277 380 348
110 3164
4.4
4 7 6
6 0
6 6
0
1 l 2 1 1 1 2 2 476 3 882
2 1193
0 702
1401
1421
1362 989
1193
51 9619
1.6
1150 1317 452 382 472 971 761 982
236
182
211 191
398 633
709
1 617 0 654
0 798 0 1153
0 1186
2 736
0 847
1 502
1 615
5 16155
0.1
6 5 9 1 0 4 1
862
421 223 580 183
604 782·
889 2 608
538
0 248 0 562
2 282
4 771 2 480
0 554
1 439 0 344
36 943
0 1207
0 394
0 886
0 1157
1 1182
76 15139
0.5
3 982 10 735 0 771 2 1063 0 919
0 847 0 1835 1 2257
7 2033
0 139 1 116
0 116 13 111
1 406
0 271
0 1092 2 1419 0 1396
1 1737
0 2276
0 2507
0 2257
0 2445
1 2035
42 29765
0.3
0 2531 13 2268 6 1305
11 1386 7 746
2424 1 2920 3 2926
29 1919
0 788 6
0
1
1 1 0 2 5
1 0
0 0
1 4
93 19213
0.3
19 22 11 5 8
3 1 7 1 7
84
0.4
·~
0
)
J
LITERATURE CITED
McBride, D. and D. Mesiar 1981. Nushagak sonar enumeration project, 1980. Alaska Department of Fish and Game, Division of Commercial Fisheries, Bristol Bay Data Report No. 83, Anchorage.
Minard, R. E. 1983. Nushagak sonar enumeration project, 1982. Alaska Department of Fish and Game, Division of Commercial Fisheries, Bristol Bay Data Report No. 92, Anchorage.
Minard, R. E. and M. Frederickson 1983. Nushagak sonar salmon enumeration project, 1983. Alaska Department of Fish and Game, Division of Commercial Fisheries, Bristol Bay Data Report No. 97, Anchorage.
Minard, R. E. 1985. Nushagak sonar enumeration project, 1984. Alaska Department of Fish and Game, Division of Commercial Fisheries, Bristol Bay Report No. 85-3, Anchorage.
19
.)
) ] I
0', Appendix A. Chinook salmon daily and average daily escapement
into the Nushagak River as estimated by sonar, 1980 -1986.
'
Appendix A. (Page 2-of 2)
Date 1980 1981 1982 1983 1985 1986 Average 0
14-Jul 1108 959 2090 2345 1880 1447 1638 15-Jul 624 934 4702 2440 4016 3045 2627 16.-Jul 662 264 1567 755 2000 1166 1069 17-Jul 2689 2090 387 1718 3097 1996
0 18-Jul 5101 2090 435 1631 1146 2081 19-Jul 595 522 422 2389 1176 1021 20-Jul 1045 456 951 936 847 21-Jul 522 361 493 738 529 22-Jul 1567 373 477 398 704 23-Jul 522 435 371 288 404
0 24-Jul 1045 458 119 808 608 25-Jul 1500 566 522 463 763 26-Jul 2090 597 319 618 906 27-Jul 0 592 234 1168 499 28-Jul 633 104 120 286 29-Jul 644 29 0 224
0 30-Jul 413 17 182 204 31-Jul 957 27 60 348 01-Aug 660 26 50 245 02-Aug 790 18 0 269
· 03-Aug 734 24 0 253 04-Aug 658 62 787 502 05-Aug 55 0 381 145 06-Aug 89 0 204 98 07-Aug 83 0 87 57 08-Aug 211 0 72 94 09-Aug 232 0 66 99 10-Aug 135 23
0
Total 62780 130252 126438 103767 98991 43434 98291
)
)
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Appendix B. Chinook salmon daily and average daily cumulative escapement into the Nushagak River as estimated by sonar, 1980-1986.
Date 1980 1981 1982 1983 1985 1986 Average
6-Jun 1 7-Jun 10 8-Jun 16 9-Jun 27
10-Jun 78 11-Jun 118 44 118 93 12-Jun 1128 274 53 201 414 13-Jun 3252 486 165 519 llOS 14-Jun 5203 281 617 313 816 1446 15-Jun 6703 870 821 346 916 1931 16-Jun 9363 1427 960 370 1064 2637 17-Jun 10272 2859 1092 384 ll07 3143 18-Jun 10856 4442 1235 404 ll79 3623 19-Jun 11424 5565 1371 775 1603 4148 20-Jun 11438 6355 1739 3402 2392 5065-21-Jun 11494 14191 2309 7288 2917 7640 22-Jun 3975 13550 19937 5489 9043 3438 9239 23-Jun 9352 17106 26728 7042 12600 3627 12742 24-Jun 10815 24606 43967 12166 13488 3901 18157 25-Jun 12855 36078 48146 148!31 13868 4417 21707 26-Jun 16562 43127 50758 19269 14513 5060 24881 27-Jun 2ll85 48719 52325 24097 16274 6059 28ll0 28-Jun 24846 50344 53892 35715 17990 6807 31599 29-Jun 26370 53484 57026 41364 18594 7212 34008 30-Jun 27923 57393 62250 49832 19501 7656 37426 01-Jul 29798 59825 67996 55574 28685 7783 41610 02-Jul 34486 81742 73742 6ll30 43701 7964 50461 03-Jul 37188 96531 78966 64010 50228 8152 55846 04-Jul 39965 107048 800ll 68876 54519 8234 59775 05-Jul 42815 ll2821 84190 73752 58593 9016 63531 06-Jul 45067 ll6221 88369 75521 64443 10265 66648 07 -Jul 47ll9 118435 92026 76863 68466 12521 69238 08-Jul 47721 119463 93593 78345 71683 145ll 70886 09-Jul 48006 12ll83 95683 79513 74435 16703 72587 10-Jul 48790 123063 98817 80494 77321 18546 74505 ll-Jul 50074 124943 100384 82845 79513 19657 76236 12-Jul 50991 126992 102996 85192 80735 23549 78409 13-Jul 52001 128095 105086 86986 81564 24795 79755 14-Jul 53109 129054 107176 89331 83444 26242 81393
-Continued-
22
Percent
0.1 0.4 1.2 1.5 2.1 2.8 3.3 3.8 4.4 5.4 8.1 9.8
13.5 19.3 23.0 26.4 29.8 33.5 36.1 39.7 44.2 53.5 59.3 63.4 67.4 70.7 73.5 75.2 77.0 79.1 80.9 83.2 84.6 86.4
0
.) Appendix B. (Page 2 of 2)
Date 1980 1981 1982 1983 1985 1986 Average Percent :;
15-Jul 53733 129988 111878 91771 87460 29287 84020 89.1 16-Jul 54395 130252 113445 92526 89460 30453 85088 90.3 17-Jul 57084 130252 115535 92913 91178 33550 86752 92.0 18-Jul 62185 130252 117625 93348 92809 34696 88486 93.9
) 19-Jul 62780 130252 118147 93770 95198 35872 89336 94.8 20-Jul 62780 130252 119192 94226 96149 36808 89901 95.4 21-Jul 62780 130252 119714 94587 96642 37546 90254 95.8 22-Jul 62780 130252 121281 94960 97119 37945 90723 96.3 23-Jul 62780 130252 121803 95395 97490 38232 90992 96.5 24-Jul 62780 130252 122848 95853 97609 39040 91397 97.0
) 25-Jul 62780 130252 124348 96419 98131 39503 91905 97.5 26-Jul 62780 130252 126438 97016 98450 40121 92509 98.2 27 -Jul 62780 130252 126438 97608 98684 41289 92842 98.5 28-Jul 62780 130252 126438 98241 98788 41409 92985 98.6 29-Jul 62780 130252 126438 98885 98817 41409 93097 98.7 30-Jul 62780 130252 126438 99298 98834 41591 93199 98.9 31-Jul 62780 130252 126438 100255 98861 41651 93373 99.1 01-Aug 62780 130252 126438 100915 98887 41701 93496 99.2 02-Aug 62780 130252 126438 101705 98905 41701 93630 99.3 03-Aug 62780 130252 126438 102439 98929 41701 93757 99.5 04-Aug 62780 130252 126438 103097 98991 42488 94008 99.7 05-Aug 62780 130252 126438 103152 98991 42870 94080 99.8
·J 06-Aug 62780 130252 126438 103241 98991 43074 94129 99.9 07-Aug 62780 130252 126438 103324 98991 43161 94158 99.9 08-Aug 62780 130252 126438 103535 98991 43233 94205 99.9 09-Aug 62780 130252 126438 103767 98991 43299 94255 100.0
,., •J
23 )
0
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0'
0
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),
Appendix C. Sockeye salmon daily and average da·ily escapement into the Nushagak River as estimated by sonar, 1980-1986.
Date 1980 1981 1982 1983 1984 1985 1986 Average
04-Jun 0 0 0 0 149 0 0 21 05-Jun 0 0 0 0 457 0 0 65 06-Jun 0 0 0 0 574 0 0 82 07-Jun 0 0 0 0 591 0 3 84 08-Jun 0 0 0 0 622 0 2 89 09-Jun 0 0 0 0 624 0 3 89 10-Jun 0 0 0 0 450 0 15 65 11-Jun 0 0 0 253 385 19 6 96 12-Jun 0 243 0 335 254 5 15 120 13-Jun 0 457 0 454 362 42 71 190 14-Jun 0 420 120 282 787 48 76 247 15-Jun 0 323 252 437 1440 7 32 362 16-Jun 0 573 239 297 1528 6 37 382 17-Jun 0 1514 614 282 3478 4 16 847 18-Jun 0 972 678 306 1380 8 14 480 19-Jun 0 893 481 292 2519 82 112 612 20-Jun 0 1247 338 790 1544 3124 141 1022 21-Jun 0 5134 0 606 1019 2616 88 1359 22-Jun 352 3426 7133 3385 3030 915 119 2618 23-Jun 476 2490 23182 1653 3475 1698 229 4728 24-Jun 528 239 39230 5455 11295 369 270 8192 25-Jun 737 0 7133 2890 83644 229 1091 15817 26-Jun 1339 0 0 3749 54222 419 3392 10137 27-Jun 1670 195 8916 4125 48318 421 4282 9577 28-Jun 268 1701 21398 9926 14201 305 1583 7440 29-Jun 111 3287 14266 4826 18904 908 853 6269 30-Jun 3688 6143 16049 7235 44465 1400 946. 11405 01-Jul 25625 76193 41014 9534 31261 53282 5874 33979 02-Jul 104306 41641 37447 9224 58296 35792 9468 41797 03-Jul 240530 52501 35664 4781 22133 18234 5414 54759 04-Jul 294491 82221 32098 8079 8840 13382 18067 63504 05-Jul 222282 223247 30314 28917 37884 13210 34648 81989 06-Jul 97701 150089 37447 10492 55571 16440 44969 57484 07-Jul 54034 25267 23182 7959 15876 12124 57760 26202 08-Jul 23484 22271 24965 8792 14680 21881 46419 24833 09-Jul 9973 22068 5350 6926 14618 19258 41217 17802 10-Jul 9223 42360 7133 5818 15366 10439 104907 18794 11-Jul 4603 22629 14266 3063 5264 6703 144139 23062 12-Jul 4355 12296 8916 3059 3175 8538 125352 26354 13-Jul 4519 6774 12482 2338 1465 5459 68323 22627
-Continued-
24
Appendix C. (Page 2 of 3)
Date 1980 1981 1982 1983 1984 1985 1986 Average )
14-Jul 5539 3517 5350 3055 909 11785 20310 14068 15-Jul 3121 1213 5350 3180 691 22640 72800 8072 16-Jul 2891 343 7133 3018 803 12476 17099 4849 17 -Jul 9681 10699 1546 1912 8491 8942 8238
J 18-Jul 7883 7133 1739 532 7469 3798 5616 19-Jul 920 16049 1688 393 2708 4005 4259 20-Jul 1031 5350 1823 671 928 2255 2301 21-Jul 1084 7133 271 966 1616 1820 2221 22-Jul 5350 280 733 1484 878 1933 23-Jul 7133 326 124 1226 2273 1937
0 24-Jul 7133 343 368 395 3589 2102 25-Jul 1783 424 338 1402 2015 1507 26-Jul 1783 398 286 898 1370 947 27 -Jul 395 0 658 2557 903 28-Jul 422 0 258 329 252 29-Jul 429 0 42 847 329
·~) 30-Jul 275 0 36 182 123 31-Jul 0 0 47 60 27 01-Aug 0 0 37 205 61 02-Aug 0 0 36 248 71 03-Aug 0 0 42 0 11 04-Aug 0 0 142 663 201
J 05-Aug 0 0 0 322 80 06-Aug 0 0 0 178 44 07-Aug 0 0 0 69 17 08-Aug 0 0 0 58 14 09-Aug 0 0 18 52 17 10-Aug 341 0 11 98 112
•J 11-Aug 152 0 6 193 88 12-Aug 125 0 26 224 94 13-Aug 94 0 21 123 59 14-Aug 73 0 37 195 76 15-Aug 76 0 10 67 38 16-Aug 66 0 5 31 26
J 17-Aug 42 0 2 38 21 18-Aug 0 2 1 19-Aug 0 2 '1
-Continued-
25
Appendix C. (Page 3 of 3)
Date 1980 1981 1982 1983 1984 1985 1986 Average .)
20-Aug 0 3 2 21-Aug 0 1 1 22-Aug 0 0 23-Aug 0 0 24-Aug 0 0 25-Aug 0 0
Tot a 1 1136445 813887 537686 177141 592872 322327 802324 612937
26
. ~
0
J
Appendix D. Sockeye salmon daily and average daily cumulative escapement into the Nushagak River as estimated by sonar, 1980-1986 •
Date
01-Jun 02-Jun 03-Jun 04-Jun 05-Jun 06-Jun 07-Jun 08-Jun 09-Jun 10-Jun 11-Jun 12-Jun 13-Jun 14-Jun 15-Jun 16-Jun 17-Jun 18-Jun 19-Jun 20-Jun 21-Jun 22-Jun 23-Jun 24-Jun 25-Jun 26-Jun 27-Jun 28-Jun 29-Jun 30-Jun 01-Jul 02-Jul 03-Ju 1 04-Jul 05-Jul
1980 1981 1982 1983 1984 1985 1986 Average Percent
243 700
1120 120 1443 372 2016 61i 3530 1225 4502 1903 5395 2384 6642 2722
11776 2722
149 606
1180 1771 2393 3017 3467
253 3852 588 4106
1042 4468 1324 5255 1761 6695 2058 8223 2340 11701 2646 13081 2938 15600 3728 17144 4334 18163
19 24 66
114 121 127 131 139 221
3345 5961
352 15202 9855 7719 21193 6876 828
1356 2093 3432 5102 5370 5481
17692 33037 17931 72267 17931 79400 17931 79400 18126 88316 19827 109714 23114 123980
9372 24668 14827 35963 17717 119607 21466 173829 25591 222147 35517 2~6348
40343 255252
8574 8943 9172 9591
10012 10317 11225
9169 29257 140029 47578 299717 12625 34794 105450 181043 57112 330978 65907
139100 147091 218490 379630 199592 254154
66336 389274 101699 71117 411407 119933
674121 281813 286252 79196 420247 133315 896403 505060 316566 108113 458131 146525
0 3 5
8 23 30 45
116 192 225 262 278 292 403 545 633 752 981
1251 2342 5734
10016 11598 12451 13397 19271 28739 34153 52220 86868
149 606 590 887
1199 1513 1745 1038 1001 1278 1354 1769 2216 3201 3760 449Q 5688 7265 8850
13593 21791 35466 44483 54187 61242 67407 78825
113508 155818 209998 275309 359667
0.0 0.1 0.1 0.1 0.2 0.2 0.3 0.2 0.2 0.2 0.2 0.3 0.3 0.5 0.6 0.7 0.9 1.2 1.4 2.2 3.3 5.7 7.1 8.7 9.8
10.8 12.6 18.1 24.9 33.5 44.0 57.5
06-Jul 994104 655149 354013 118605 513702 162965 131838 418625 66.9 07-Jul 1048138 680416 377195 126564 529578 175089 189597 446654 71.3 08-Jul 1071622 702687 402160 135356 544258 196970 236016 469867 75.1 09-Jul 1081595 724755 407510 142282 558876 216228 277233 486926 77.8
-Continued-
27
!
:'),
o·.
:)'
' '
J
i
.I
J
J '
/ )
Appendix D. (Page 2 of 3)
Date 1980 1981 1982 1983 1984 1985 1986 Average Percent
10-Jul 1090818 767115 414643 148100 574242 226667 382140 514818 82.2 11-Jul 1095421 789744 428909 151163 579506 233370 526279 543485 86.8 12-Jul 1099776 802040 437825 154222 582681 241908 651631 567155 90.6 13-Jul 1104295 808814 450307 156560 584146 247367 719954 14-Ju 1 1109834 812331 455657 159615 585055 259152 740264 15-Jul 1112955 813544 461007 162795 585746 281792 747544 16-Jul 1115846 813887 468140 165813 586549 294268 764643 17-Jul 1125527 813887 478839 167359 588461 302759 773585 18-Jul 1133410 813887 485972 169098 588993 310228 777384 19-Jul 1134330 813887 502021 170786 589386 312936 781388 20-Jul 1135361 813887 507371 172609 590057 313864 783643 21-Jul 1136445 813887 514504 172880 591023 315480 785463 22-Jul 1136445 813887 519854 173160 591756 316964 786340 23-Jul 1136445 813887 526987 173486 591880 318190 788613 24-Jul 1136445 813887 534120 173829 592248 318585 792202 25-Jul 1136445 813887 535903 174253 592586 319987 794217 26-Jul 1136445 813887 537686 174651 592872 320885 795587 27-Jul 1136445 813887 537686 175046 592872 321543 798144 28-Jul 1136445 813887 537686 175468 592872 321801 798473 29-Jul 1136445 813887 537686 175897 592872 321843 799319 30-Jul 1136445 813887 537586 176172 592872 321879 799501 31-Jul 1136445 813887 537686 176172 592872 321926 799561 01-Aug 1136445 813887 537686 176172 592872 321963 799766 02-Aug 1136445 813887 537686 176172 592872 321999 800014 03-Aug 1136445 813887 537686 176172 592872 322041 800014 04-Aug 1136445 813887 537686 176172 592872 322183 800677 05-Aug 1136445 813887 537686 176172 592872 322183 800999 06-Aug 1136445 813887 537686 176172 592872 322183 801177 07-Aug 1136445 813887 537686 176172 592872 322183 801246 08-Aug 1136445 813887 537686 176172 592872 322183 801304 09-Aug 1136445 813887 537686 176172 592872 322201 801355 10-Aug 1136445 813887 537686 176513 592872 322212 801453 11-Aug 1136445 813887 537686 176665 592872 322218 801646 12-Aug 1136445 813887 537686 176790 592872 322244 801871 13-Aug 1136445 813887 537686 176884 592872 322265 801993 14-Aug 1136445 813887 537686 176957 592872 322302 802188 15-Aug 1136445 813887 537686 177033 592872 322312 802255 16-Aug 1136445 813887 537686 177099 592872 322317 802286 17-Aug 1136445 813887 537686 177141 592872 322319 802324 18-Aug 1136445 813887 537686 177141 592872 322321 802324 19-Aug 1136445 813887 537686 177141 592872 322323 802324
-Continued-
28
581635 588844 595055 601307 607202 611282 614962 616685 618526 619772 621355 623045 623897 624573 625089 625233 625421 625492 625507 625542 625582 625588 625703 625749 625775 625784 625793 625803 625867 625917 625971 626005 626048 626070 626085 626096 626097 626097
92.9 94.1 95.0 96.0 97.0 97.6 98.2 98.5 98.8 99.0 99.2 99.5 99.6 99.8 99.8 99.9 99.9 99.9 99.9 99.9 99.9 99.9 99.9 99.9 99.9 99.9 99.9 99.9 99.9
100.0 100.0 100.0 100.0 100.0 100.0 100.0 100.0 100.0
··:>
Appendix D. (Page 3 of 3)
:') Date 1980 1981 1982 1983 1984 1985 1986 Average Percent
20-Aug 1136445 813887 537886 177141 592872 322326 802324 626097 100.0 21-Aug 1136445 813887 537886 177141 592872 322327 802324 626097 100.0 22-Aug 1136445 813887 537886 177141 592872 322327 802324 626097 100.0 23-Aug 1136445 813887 537886 177141 592872 322327 802324 626097 100.0
'J 24-Aug 1136445 813887 537886 177141 592872 322327 802324 626097 100.0 25-Aug 1136445 813887 537886 177141 592872 322327 802324 626097 100.0
0
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Appendix E. Chum salmon daily and average daily escapement into the Nushagak River as estimated by sonar, 1980-1986.
Date 1980 1981 1982 1983 1984 1985 1986
04-Jun 0 0 0 0 100 0 0 05-Jun 0 0 0 0 305 0 0 06-Jun 0 0 0 0 383 0 1 07-Jun 0 0 0 0 394 0 8 08-Jun 0 0 0 0 415 0 5 09-Jun 0 0 0 0 416 0 6 10-Jun 0 0 0 0 300 0 37 11-Jun 0 0 0 0 257 3 8 12-Jun 0 364 0 0 289 0 25 13-Jun 0 686 0 0 328 9 139 14-Jun 0 630 100 0 524 17 166 15-Jun 0 485 210 0 960 6 79 16-Jun 0 859 199 0 1018 4 80 17-Jun 0 330 512 0 331 2 40 18-Jun 0 212 565 0 1380 1 25 19-Jun 0 162 401 0 504 66 245 20-Jun 0 95 282 0 309 6283 220 21-Jun 0 391 3895 487 29 3209 126 22-Jun 704 3084 3895 2718 19 1414 235 23-Jun 953 2845 1948 1327 2824 2846 509 24-Jun 2072 239 7790 4380 7530 703 757 25-Jun 2890 1275 5194 2321 13207 310 6649 26-Jun 5252 2106 14282 2939 26651 531 7461 27-Jun 6550 715 12335 3235 23750 1354 9871 28-Jun 5001 454 10387 7783 67031 1306 12630 29-Jun 2081 876 1948 3784 89225 347 6843 30-Jun 1229 1117 7790 5673 17242 541 7480 01-Jul 3750 2432 9738 1733 10212 18749 2843 02-Jul 8204 9497 7141 1677 8093 27024 4135 03-Jul 27026 6655 21424 869 17438 9186 2117 04-Jul 60317 2868 6492 1469 6965 6889 2568 05-Jul 59845 4556 5194 8238 11430 6848 7630 06-Jul 36136 4642 2597 2989 4015 8293 3154 07 -Jul 12312 32159 3246 2267 9355 6201 1128 08-Jul 6021 10964 9089 2505 7234 7338 4644 09-Jul 3989 4872 3895 1973 3765 6601 5551 10-Jul 2755 11948 7141 1657 2561 5348 11008 11-Jul 4817 6383 8440 3205 2507 4401 8089 12-Jul 6189 6149 8440 3201 0 1178 27386 13-Jul 4895 7877 9089 2447 932 746 7314
-Continued-
30
Average
14 44 55 57 60 60 48 38 97
166 205 249 309 174 312 197
1027 1162 1724 1893 3353
. 4549 8460 8259
14942 15015 5867 7065 9396
12102 12510 14820 8832 9524 6828 4378 6060 5406 7506 4757
Appendix E. (Page 2 of 2)
Date 1980 1981 1982 1983 1984 1985 1986 Average ~)
14-Jul 4431 6180 2597 3198 578 1596 2138 2960 15-Jul 2496 7187 2597 3327 440 18524 4709 5611 16-Jul 3572 2030 2597 2910 511 10549 5500 3953 17-Jul 14521 3895 1491 1217 4898 2933 4826
:) 18-Jul 31534 7141 1677 5322 4215 1223 8519 19-Jul 3680 5843 1628 4716 20261 1284 6235 20-Jul 4122 8440 1758 1343 5744 1481 3815 21-Jul 4334 2597 1174 3381 5687 1136 3052 22-Jul 1948 1214 2565 5002 695 2285 23-Jul 1298 1413 62 4338 752 1573
0 24-Jul 2597 1488 184 1403 1178 1370 25-Jul 2597 1839 169 358 661 1125 26-Jul 2597 1989 143 219 161 1022 27-Jul 2597 1974 117 160 354 1040 28-Jul 1948 2109 74 71 120 864 29-Jul 649 2146 159 20 0 595 30-Jul 649 1377 239 11 922 640 31-Jul 649 957 . 663 18 305 518 01-Aug 0 660 0 18 0 136 02-Aug 3246 790 0 12 0 810 03-Aug 0 734 0 16 0 150. 04-Aug 0 658 258 43 641 320
0 05-Aug 73 122 310 168 06-Aug 118 174 155 149 07-Aug 110 110 80 100 08-Aug 281 472 65 273 09-Aug 309 445 62 272 10-Aug 0 172 141 104
,) 11-Aug 0 206 58 88 12-Aug 0 .487 0 162 13-Aug 0 260 0 87 14-Aug 0 511 0 170 15-Aug 0 231 0 77 16-Aug 0 145 0 48
::> 17-Aug 0 71 0 24 18-Aug 54 54 19-Aug 54 "54 20-Aug 41 41 • 21-Aug 9 9
Total 331678 143324 230141 106279 362369 214481 168275 230818
31 )
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Appendix F. Chum salmon daily and average daily cumulative escapement into the Nushagak River as estimated by sonar, 1980 - 1986.
Date 1980 1981 1982 1983 1984 1985 1986 Average Percent
04-Jun 05-Jun 06-Jun 07-Jun 08-Jun 09-Jun 10-Jun !1-Jun 12-Jun 13-Jun 14-Jun 15-Jun 16-Jun 17-Jun 18-Jun 19-Jun 20-Jun 21-Jun 22-Jun 704 23-Jun 1657 24-Jun 3729 25-Jun 6619 26-Jun !1871 27-Jun 18421 28-Jun 23422 29-Jun 25503 30-Jun 26732 Ol-Ju1 30482 02-Ju 1 38686 03-Ju 1 65712 04-Ju 1 126029 05-Ju1 185874 06-Ju1 222010 07-Ju1 234322
384 1050 1680 100 2165 310 3024 509 3354 1021 3566 1586 3728 1987 3823 2269 4214 6184 7298 10059
10143 12007 10382 19797 !1657 24991 13783 39273 14478 51608 14932 61995 15808 63943 16925 71733 19357 81471 28854 88612 35509 !1 0036 38377 !16528 42933 121722 47575 124319 79734 127565
08-Ju1 240343 90698 136654 09-Ju1 244332 95570 140549 10-Ju1 247087 107518 147690 11-Ju1 251904 113901 156130 12-Ju1 258093 120050 164570
100 405 788
!182 1597 2013 2313 2570 3
100 405
2 395 10 596 16 806 21 1017 58 !185 66 880
2869 3 90 829 3187 12 229 !120 37!1 29 395 !183 4671 35 474 1531 5689 39 554 1963 6020 41 594 2206 7400 42 619 2643 7904 108 884 2918 8213 6391 1084 4356
487 8242 9600 1210 4986 3205 8261 !1014 1445 4532 11085 13860 1954 8912 18615 14563 2710
11233 31822 14873 9359 14172 58473 15404 18820 17407 82223 16758 26691 25190 149254 18084 39322 28974 238479 18411 46165 34647 25572L ~sz--· · 53645 36380 265933 37701 58487
5998 7891
11244 15793 24254 32512 47454 62469 68336 75402
38057 274026 64725 38926 291464 73911 40395 298429 80800 48633 309859 87648 51622 313874 95941 53889 323229 102142
60623 84798 62739 96900 65307 109409 72937 124229 76091 133062 77219 142586
56394 330463 109480 81863 149414 58367 334228 116081 87414 153792 60024 336789 121429 98422 159851 63229 339296 125830 106511 165257 66430 339296 127008 133897 172763
-Continued-
32
0.0 0.2 0.2 0.3 0.4 0.5 0.5 0.4 0.4 0.5 0.5 0.7 0.9 1.0 1.2 1.3 2.0 2.2 2.7 3.6 5.1 7.1
10.9 14.6 21.3 28.1 30.7 33.9 38.1 43.6 49.2 55.9 59.8 84.1 67.2 69.2 71.9 74.3 77.7
)
Appendix F. (Page 2 of 2)
Date 1980 1981 1982 1983 1984 1985 ·1986 Average Percent
13-Jul 262988 127927 173659 14-Jul 267419 134107 176256 15-Jul 269915 141294 178853 16-Ju 1 273487 143324 181450 17-Jul 288008 143324 185345 18-Jul 319542 143324 192486 19-Jul 323222 143324 198329 20-Jul 327344 143324 206769 21-Jul 331678 143324 209366
68877 340228 127754 141211 177521 72075 340806 129350 143349 180480 75402 341246 147874 148056 186092 78312 341757 158423 153558 190044 79803 342974 163321 156492 194181 81480 348296 167536 157714 201483 83108 353012 187797 158999 206827 84866 354355 193541 160480 210097 86040 357736 199228 161616 212713
79.8 81.2 83.7 85.5 87.3 90.6 93.0 94.5 95.7
22-Jul 331678 143324 211314 87254 360301 204230 162311 214345 96.4 23-Jul 331678 143324 212612 88667 360363 208568 163063 215468 96.9 24-Jul 331678 143324 215209 90155 360547 209971 164241 216446 97.3 25-Jul 331678 143324 217806 91994 360716 210329 164902 217250 97.7 26-Jul 331678 143324 220403 93983 360859 210548 165063 217980 98.0 27-Jul 331678 143324 223000 95957 360976 210708 165417 218723 98.4 28-Jul 331678 143324 224948 98066 361050 210779 165537 219340 98.6 29-Jul 331678 143324 225597 100212 361209 210799 165537 219765 98.8 30-Jul 331678 143324 226248 101589 361448 210810 166459 220222 99.0 31-Jul 331678 143324 226895 102546 362111 210828 166764 220592 99.2 01-Aug 331678 143324 226895 103206 362111 210846 166764 220689 99.3 02-Aug 331678 143324 230141 103996 362111 210858 166764 221267 99.5 03-Aug 331678 143324 230141 104730 362111 210874 166764 221375 99.6 04-Aug 331678 143324 230141 105388 362369 210917 167405 221603 99.7 05-Aug 331678 143324 230141 105461 362369 211039 167715 221675 99.7 06-Aug 331678 143324 230141 105579 362369 211213 167870 221739 99.7 07-Aug 331678 143324 230141 105689 362369 211323 167949 221782 99.7 08-Aug 331678 143324 230141 105970 362369 211795 168014 221899 99.8 09-Aug 331678 143324 230141 106279 362369 212240 168076 222015 99.8 10-Aug 331678 143324 230141 106279 362369 212412 168217 222060 99.9 11-Aug 331678 143324 230141 106279 362369 212618 168275 222098 99.9 12-Aug 331678 143324 230141 106279 362369 213105 168275 222167 99.9 13-Aug 331678 143324 230141 106279 362369 213365 168275 222204 99.9 14-Aug 331678 143324 230141 106279 362369 213876 168275 222277 100.0 15-Aug 331678 143324 230141 106279 362369 214107 168275 222310 100.0 16-Aug 331678 143324 230141 106279 362369 214252 168275 222331 100.0 17-Aug 331678 143324 230141 106279 362369 214323 168275 222341 100.0 18-Aug 331678 143324 230141 106279 362369 214377 168275 222349 100.0 19-Aug 331678 143324 230141 106279 362369 214431 168275 222357 100.0 20-Aug 331678 143324 230141 106279 362369 214472 168275. 222363 100.0 21-Aug 331678 143324 230141 106279 362369 214481 168275 222364 100.0
33
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Appendix G. Pink salmon daily and average daily escapement into the Nushagak River as estimated by sonar, 1980 - 1986.
Date 1980 1982 1984 1986 Average
01-Jul 0 0 0 0 0 02-Jul 0 0 549 0 137 03-Jul 0 0 0 0 0 04-Jul 0 0 0 0 0 05-Jul 0 0 0 0 0 06-Jul 0 0 0 0 0 07 -Jul 0 0 0 0 0 08-Jul 0 0 0 0 0 09-Jul 0 0 0 0 0 10-Jul 0 0 0 0 0 11-Jul 0 0 251 0 63 12-Jul 0 0 794 0 199 13-Jul 0 0 266 0 67 14-Jul 0 3216 165 215 899 15-Jul 0 3216 126 0 836 16-Jul 0 3216 146 1809 1293 17 -Jul 0 3216 348 0 891 18-Jul 1855 12864 6386 0 5276 19-Jul 216 9648 7859 0 4431 20-Jul 1600 12864 18126 356 8236 21-Jul 2300 19297 31880 255 13433 22-Jul 2996 19297 24188 202 11671 23-Jul 5510 35377 23845 4330 17266 24-Jul 2161 16081 70605 4363 23303 25-Jul 3100 61106 64968 2384 32890 26-Jul 4999 25729 54894 625 21562 27 -Jul 10475 196182 66214 1239 68527 28-Jul 21782 93267 41567 6853 40867 29-Jul 22057 109347 89976 7728 57277 30-Jul 32754 109347 134987 8620 71427 31-Jul 18992 147941 119383 4297 72653 01-Aug 115186 173669 137574 4828 107814 02-Aug 61476 118996 158472 7738 86671 03-Aug 120802 67538 104080 6589 74752 04-Aug 75708 54674 97528 3878 57947 05-Aug 26757 38593 79075 1883 36577 06-Aug 21750 9648 96630 1064 32273 07-Aug 3216 113159 386 38920 08-Aug 9648 83438 326 31137
-Continued-
34
Appendix G. (Page 2 of 2)
Date 1980 1982 1984 1986 Average 8
09-Aug 12864 61145 284 24764 10-Aug 35377 46597 507 27494 11-Aug 19297 73178 1100 31192 12-Aug 26831 66 13449
8 13-Aug 25252 51 12652 14-Aug 9403 124 4763 15-Aug 11026 43 5534 16-Aug 3498 24 1761 17-Aug 3308 20 1664 18-Aug 1702 1702
0 19-Aug 1809 1809 20-Aug 3202 3202 21-Aug 2731 2731 22-Aug 2694 2694 23-Aug 2340 2340 24-Aug 482 482 25-Aug 2217 2217
Total 552476 1424731 1904894 72189 1059744
0
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Appendix H. Pink salmon daily and average daily cumulative escapement into the Nushagak River as estimated by sonar, 1980 - 1986.
Date 1980 1982 1984 1986 Average Percent
02-Jul 549 549 0.1 03-Jul 549 549 0.1 04-Jul 549 549 0.1 05-Jul 549 549 0.1 06-Jul 549 549 0.1 07-Jul 549 549 0.1 08-Jul 549 549 0.1 09-Jul 549 549 0.1 10-Jul 549 549 0.1 11-Jul 800 800 0.1 12-Jul 1594 1594 0.2 13-Jul 1860 1860 0.2 14-Jul 3216 2025 215 1819 0.2 15-Jul 6432 2151 215 2933 0.3 16-Jul 9648 2297 2024 4656 0.5 17-Jul 12864 2645 2024 5844 0.6 18-Jul 1855 25728 9031 2024 9660 1.0 19-Jul 2071 35376 16890 2024 14090 1.4 20-Jul 3671 48240 35016 2380 22327 2.3 21-Jul 5971 67537 66896 2635 35760 3.6 22-Jul 8967 86834 91084 2837 47431 4.8 23-Jul 14477 122211 114929 7168 64696 6.5 24-Jul 16638 138292 185534 11531 87999 8.9 25-Jul 19738 199398 250502 13915 120888 12.2 26-Jul 24737 225127 305396 14540 142450 14.4 27 -Jul 35212 421309 371610 15779 210978 21.3 28-Jul 56994 514576 413177 22632 251845 25.5 29-Jul 79051 623923 503153 30360 309122 31.3 30-Jul 111805 733270 638140 38980 380549 38.5 31-Jul 130797 881211 757523 43277 453202 45.8 01-Aug 245983 1054880 895097 48105 561016 56.8 02-Aug 307459 1173876 1053569 55843 647687 65.5 03-Aug 428261 1241414 1157649 62432 722439 73.1 04-Aug 503969 1296088 1255177 66310 780386 78.9 05-Aug 530726 1334681 1334252 68193 816963 82.6 06-Aug 552476 1344329 1430882 69257 849236 85.9 07-Aug 552476 1347545 1544041 69643 878426 88.9 08-Aug 552476 1357193 1627479 69969 901779 91.2 09-Aug 552476 1370057 1688624 70253 920353 93.1
-Continued-
36
Appendix H. (Page 2 of 2)
Date 1980 1982 1984 1986 Average Percent
10-Aug 552476 1405434 1735221 70760 940973 95.2 11-Aug 552476 1424731 1808399 71861 964367 97.6 12-Aug 552476 1424731 1835230 71927 971091 98.2 13-Aug 552476 1424731 1860482 71978 977417 98.9
~) 14-Aug 552476 1424731 1869885 72102 979798 99.1 15-Aug 552476 1424731 1880911 72145 982566 99.4 16-Aug 552476 1424731 1884409 72169 983446 99.5 17-Aug 552476 1424731 1887717 72189 984278 99.6 18-Aug 552476 1424731 1889419 72189 984704 99.6 19-Aug 552476 1424731 1891228 72189 985156 99.7
0 20-Aug 552476 1424731 1894430 72189 985957 99.7 21-Aug 552476 1424731 1897161 72189 986639 99.8 22-Aug 552476 1424731 1899855 72189 987313 99.9 23-Aug 552476 1424731 1902195 72189 987898 99.9 24-Aug 552476 1424731 1902677 72189 988018 99.9
0 25-Aug 552476 1424731 1904894 72189 988573 100.0
0
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Appendix I~ Coho salmon daily and average daily escapement into the Nushagak River as estimated by sonar, 1982 - 1986 .
Date 1982 1983 1984 1985 1986 Average
01-Jul 0 0 0 0 0 0 02-Jul 0 0 0 0 0 0 03-Jul 0 0 0 0 0 0 04-Jul 0 0 0 0 0 0 05-Jul 0 336 0 0 0 67 06-Jul 0 122 0 0 0 24 07 -Jul 0 93 0 0 0 19 08-Jul 0· 102 0 0 0 20 09-Jul 0 81 0 0 0 16 10-Jul 0 68 0 0 0 14 11-Jul 0 71 0 0 0 14 12-Jul 0 71 0 0 0 14 13-Jul 0 54 0 0 0 11 14-Jul 0 71 0 0 0 14 15-Jul 0 74 0 0 0 15 16-Jul 0 0 0 0 708 142 17-Jul 1354 0 0 0 0 271 18-Jul 1354 0 532 0 0 377 19-Jul 1354 0 786 127 0 453 20-Jul 1354 0 671 73 0 420 21-Jul 1354 406 3381 131 0 1054 22-Jul 2708 420 2565 106 0 1160 23-Jul 4062 489 186 101 575 1083 24-Jul 10833 515 552 33 748 2536 25-Jul 5416 637 508 575 416 1510 26-Jul 6771 597 429 367 234 1680 27-Jul 8387 592 820 269 386 2091 28-Jul 9479 633 515 106 184 2183 29-Jul 8125 644 1115 19 480 2077 30-Jul 5416 413 1672 15 453 1594 31-Jul 4062 0 663 20 226 994 01-Aug 2708 0 632 17 914 854 02-Aug 6771 0 728 15 1426 1788 03-Aug 3300 0 478 18 8951 2549 04-Aug 2200 0 1032 59 7144 2087 05-Aug 1354 1212 799 4124 3461 2190 06-Aug 5416 1948 7126 5979 1804 4455 07-Aug 1354 1819 5191 3900 831 2619 08-Aug 1354 4638 695 22181 681 5910
-Continued-
38
Appendix I. (Page 2 of 2)
Date 1982 1983 1984 1985 1986 Average .)
09-Aug 5416 5105 955 7880 636 3998 10-Aug 10833 4435 4321 2908 1362 4772 11-Aug 51456 1981 2335 3731 4376 12776 12-Aug 20312 1629 5235 8459 2009 7529
.J 13-Aug 13541 1215 5050 4289 1179 5055 14-Aug 20000 944 1881 8554 2106 6697 15-Aug 27082 982 426 4098 728 6663 16-Aug 8180 855 6995 605 362 3399 17-Aug 7873 552 6616 1286 391 3344 18-Aug 2653 8938 960 4184
0 19-Aug 6872 963 3918 20-Aug 4880 698 2789 21-Aug 5463 156 2810 22-Aug 26267 26267 23-Aug 15314 15314 24-Aug 5782 5782
,:) 25-Aug 4435 4435
Total 263832 33804 142841 82822 42772 162036
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Appendix J. Coho salmon daily and average cumulative escapement into the Nushagak River as estimated by sonar, 1982 - 1986.
Date 1982 1983 1984 1985 1986 Average Percent
01-Jul 02-Jul 03-Jul 04-Jul 05-Jul 336 336 0.3 06-Jul 458 458 0.4 07 -Jul 551 551 0.5 08-Jul 653 653 0.6 09-Jul 734 734 0.7 10-Jul 802 802 0.7 11-Jul 873 873 0.8 12-Jul 944 944 0.8 13-Jul 998 998 0.9 14-Jul 1069 1069 0.9 15-Jul 1143 1143 1.0 16-Jul 1143 708 926 0.8 17-Jul 1354 1143 708 1068 0.9 18-Jul 2708 1143 532 708 1273 1.1 19-Jul 4062 1143 1318 127 708 1472 1.3 20-Jul 5416 1143 1989 200 708 1891 1.7 21-Jul 6770 1549 5370 331 708 2946 2.6 22-Jul 9478 1969 7935 437 708 4105 3.6 23-Jul 13540 2458 8121 .538 1284 5188 4.6 24-Jul 24373 2973 8673 571 2032 7724 6.8 25-Jul 29789 3610 9181 1146 2447 9235 8.2 26-Jul 36560 4207 9610 1513 2681 10914 9.6 27 -Jul 44947 4799 10430 1782 3067 13005 11.5 28-Jul 54426 5432 10945 1888 3251 15188 13.4 29-Jul 62551 6076 12060 1907 3731 17265 15.3 30-Jul 67967 6489 13732 1922 4184 18859 16.7 31-Jul 72029 6489 14395 1942 4410 19853 17.5 01-Aug 74737 6489 15027 1959 5324 20707 18.3 02-Aug 81508 6489 15755 1974 6750 22495 19.9 03-Aug 84808 6489 16233 1992 15701 25045 22.1 04-Aug 87008 6489 17265 2051 22846 27132 24.0 05-Aug 88362 7701 18064 6175 26307 29322 25.9 06-Aug 93778 9649 25190 12154 28111 33776 29.8 07-Aug 95132 11468 30381 16054 28942 36395 32.2 08-Aug 96486 16106 31076 38235 29623 42305 37.4 09-Aug 101902 21211 32031 46115 30260 46304 40.9
-Continued-
40
