Introduction Downstream Fish Passage at (ASG) is largely ... · Downstream Fish Passage at Hanover...
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Downstream Fish Passage at Hanover Pond Dam through the use of an Archimedes Screw Generator Kleinschmidt Associates, Essex, CT (A) Hanover Dam (Meriden, CT), looking upstream showing the spillway, fish ladder and enclosed Archimedes Screw Generator. (B) Locations of the three fixed radio telemetry sites. The red circles illustrate the area covered by the Yagi antennas. The red dot shows the location of the Dipole antenna. (C) Bar chart displays overall outcome of movement in the 20 radio- tagged Shad. There were four unique scenarios for a tagged Shad; downstream Passage through the Archimedes Screw Generator (T01 > T02 > T03), downstream passage via Spillway (T01 > T03), only detected at Dam (T01), and never detected. Correspondence: [email protected] Mike Steeves, Alex Malvezzi and Kevin Nebiolo Never Detected Detected at Dam (Not Downstream) Downstream Passage via Spillway Downstream Passage through ASG 0 2 4 6 8 10 Never Detected Detected at Dam (Not Downstream) Downstream Passage via Spillway Downstream Passage through ASG Number of Fish (N) Passage Routes Downstream Passage Movement Summary Results In total, 16 tagged shad were detected at Station T01. 8 of these 16 fish (50%), passed downstream and were detected at Station T03. 7 of these 8 fish (87.5%), utilized the intake (T02) and passed through the ASG before being detected at Station T03. 1 of these 8 fish (12.5%) passed downstream via the spillway or notch, as evidenced by lack of detections at Station T02. Discussion Demonstration of downstream passage through the ASG was successful for this study, and passage survival for all routes was 100%. The fate of these 8 fish that were not detected remains unknown. They potentially may have remained in the pond, shed their tags, or more unlikely passed downstream without being detected at Stations T02 or T03. Objectives The specific objectives were to determine; • If downstream passage occurs through the ASG. • The proportion of shad that pass downstream of the Dam through each of the passage routes. • Passage survival through each of the passage routes. T-01 T-02 T-03 Hanover Pond B A C Discharge (cfs) during the downstream movement study period. Downstream Passage events through the Archimedes Screw Generator are represented by red points, and the downstream passage event over the spillway is represented by a purple point. Several precipitation events in June resulted in spikes in discharge. Maximum operating flow through the Archimedes Screw Generator (green) is about 200 cfs. 0 100 200 300 400 500 600 700 800 900 5/30/2019 6/2/2019 6/5/2019 6/8/2019 6/11/2019 6/14/2019 6/17/2019 6/20/2019 6/23/2019 6/26/2019 6/29/2019 7/2/2019 7/5/2019 Discharge (CFS) Date Hanover Pond Discharge Total flow at Hanover (cfs) Turbine flow (cfs) Flow over dam (cfs) Downstream Passage (ASG) Downstream Passage (Spillway) Frequency & Code Route of Passage Date & Hour of Passage Project Discharge at Passage (cfs) Flow Through ASG at Passage (cfs) Spill/Notch Flow at Passage (cfs) 149.440 21 ASG 6/8/2019 2100 142.5 50.8 91.7 149.440 28 ASG 6/13/2019 0700 163.3 71.1 92.2 149.440 31 ASG 6/4/2019 0400 176.5 79.9 96.6 149.440 33 ASG 6/7/2019 2000 150.5 55 95.5 149.440 36 ASG 6/5/2019 0300 165.5 68.7 97.7 149.440 38 ASG 6/3/2019 2100 183.5 91.4 92.1 149.440 39 ASG 6/3/2019 2200 182.5 89.1 93.4 149.440 35 Spill or Notch 6/2/2019 2100 195 108.4 86.6 Date, Time, Route of passage, and discharge (cfs) during downstream passage for eight tagged Shad. 7 out of 8 fish passed downstream through the Archimedes Screw Generator. ASG discharge (cfs) was greater than Spillway/Notch discharge when fish 149.440 35 passed downstream over the spillway. Introduction The Archimedes Screw Generator (ASG) is largely described as 'fish friendly’. Yet, there is not adequate literature to support these claims. CT DEEP, USFWS, and Kleinschmidt Associates designed a fish movement study to evaluate downstream fish passage at Hanover Pond Dam. Methods The radio telemetry study included 3 fixed monitoring stations; T01 - Upstream of the Dam, T02 - Within the Intake, and T03 - Downstream of the Dam. 20 American Shad were implanted with radio tags and released 0.5 mile upstream of the Dam. The default tag setting was 2-second burst rate with an 11-second mortality burst rate activated after a 15 minute stationary period. Kleinschmidt implemented the following protocol to analyze telemetry data; (1) Identify and remove false positive detections ; (2) Reduce any potential overlap between detection zones; (3) Assess movement with time-to-event analysis using a competing risks framework. Archimedes Screw Generator is installed at an angle of 30 degrees. ASG has three blades with a runner diameter of 139.75 inches. The intake is hydraulically controlled by a sluice-gate to ensure a run-of-river flow design
Transcript of Introduction Downstream Fish Passage at (ASG) is largely ... · Downstream Fish Passage at Hanover...
Downstream Fish Passage at Hanover Pond Dam through the use of an Archimedes Screw Generator
Kleinschmidt Associates, Essex, CT
(A) Hanover Dam (Meriden, CT), looking upstream showing the spillway, fish ladder and enclosed Archimedes Screw Generator. (B) Locations of the three fixed radio telemetry sites. The red circles illustrate the area covered by the Yagi antennas. The red dot shows the location of the Dipole antenna. (C) Bar chart displays overall outcome of movement in the 20 radio-tagged Shad. There were four unique scenarios for a tagged Shad; downstream Passage through the Archimedes Screw Generator (T01 > T02 > T03), downstream passage via Spillway (T01 > T03), only detected at Dam (T01), and never detected.
Correspondence: [email protected]
Mike Steeves, Alex Malvezzi and Kevin Nebiolo
Never Detected
Detected at Dam (Not Downstream)
Downstream Passage via Spillway
Downstream Passage through ASG
0 2 4 6 8 10
Never D
etectedD
etected at Dam
(Not D
ownstream
)D
ownstream
Passage via Spillw
ayD
ownstream
Passage through ASG
Number of Fish (N)
Pass
age
Rout
es
Downstream Passage Movement Summary
ResultsIn total, 16 tagged shad were detected at Station T01. 8 of these 16 fish (50%), passed downstream and were detected at Station T03. 7 of these 8 fish (87.5%), utilized the intake (T02) and passed through the ASG before being detected at Station T03. 1 of these 8 fish (12.5%) passed downstream via the spillway or notch, as evidenced by lack of detections at Station T02.
DiscussionDemonstration of downstream passage through the ASG was successful for this study, and passage survival for all routes was 100%. The fate of these 8 fish that were not detected remains unknown. They potentially may have remained in the pond, shed their tags, or more unlikely passed downstream without being detected at Stations T02 or T03.
ObjectivesThe specific objectives were to determine;• If downstream passage occurs through the ASG.• The proportion of shad that pass downstream of the
Dam through each of the passage routes. • Passage survival through each of the passage routes.
T-01
T-02
T-03
Hanover Pond
B
A C
Discharge (cfs) during the downstream movement study period. Downstream Passage events through the Archimedes Screw Generator are represented by red points, and the downstream passage event over the spillway is represented by a purple point. Several precipitation events in June resulted in spikes in discharge. Maximum operating flow through the Archimedes Screw Generator (green) is about 200 cfs.
0
100
200
300
400
500
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900
5/30/2019 6/2/2019 6/5/2019 6/8/2019 6/11/2019 6/14/2019 6/17/2019 6/20/2019 6/23/2019 6/26/2019 6/29/2019 7/2/2019 7/5/2019
Disc
harg
e (C
FS)
Date
Hanover Pond Discharge
Total flow at Hanover (cfs) Turbine flow (cfs) Flow over dam (cfs) Downstream Passage (ASG) Downstream Passage (Spillway)
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y&
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eof
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sage
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our
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assa
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isch
arge
at P
assa
ge (c
fs)
Flow
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ASG
at P
assa
ge (c
fs)
Spill
/Not
ch F
low
at P
assa
ge (c
fs)
149.440 21
ASG 6/8/2019 2100
142.5 50.8 91.7
149.440 28
ASG 6/13/2019 0700
163.3 71.1 92.2
149.440 31
ASG 6/4/2019 0400
176.5 79.9 96.6
149.440 33
ASG 6/7/2019 2000
150.5 55 95.5
149.440 36
ASG 6/5/2019 0300
165.5 68.7 97.7
149.440 38
ASG 6/3/2019 2100
183.5 91.4 92.1
149.440 39
ASG 6/3/2019 2200
182.5 89.1 93.4
149.440 35
Spillor
Notch
6/2/2019 2100
195 108.4 86.6
Date, Time, Route of passage, and discharge (cfs) during downstream passage for eight tagged Shad. 7 out of 8 fish passed downstream through the Archimedes Screw Generator. ASG discharge (cfs) was greater than Spillway/Notch discharge when fish 149.440 35 passed downstream over the spillway.
IntroductionThe Archimedes Screw Generator (ASG) is largely described as 'fish friendly’. Yet, there is not adequate literature to support these claims. CT DEEP, USFWS, and Kleinschmidt Associates designed a fish movement study to evaluate downstream fish passage at Hanover Pond Dam.
MethodsThe radio telemetry study included 3 fixed monitoring stations; T01 - Upstream of the Dam, T02 - Within the Intake, and T03 - Downstream of the Dam. 20 American Shad were implanted with radio tags and released 0.5 mile upstream of the Dam. The default tag setting was 2-second burst rate with an 11-second mortality burst rate activated after a 15 minute stationary period.Kleinschmidt implemented the following protocol to analyze telemetry data; (1) Identify and remove false positive detections ; (2) Reduce any potential overlap between detection zones; (3) Assess movement with time-to-event analysis using a competing risks framework.
Archimedes Screw Generator is installed at an angle of 30 degrees. ASG has three blades with a runner diameter of 139.75 inches. The intake is hydraulically controlled by a sluice-gate to ensure a run-of-river flow design
