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![Page 1: Recreational Values of Gulf Grouper John Whitehead, Appalachian State University Gulf of Mexico Fishery Management Council Socioeconomic Panel Miami, Florida.](https://reader035.fdocuments.in/reader035/viewer/2022081519/56649cf15503460f949c08e5/html5/thumbnails/1.jpg)
Recreational Values of Gulf Grouper
John Whitehead, Appalachian State University
Gulf of Mexico Fishery Management Council
Socioeconomic Panel
Miami, Florida
Thursday May 3, 2007
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“Outline”
An overview of the MARFIN project Decisions made to date about MRFSS
data Progress report / future effort Preliminary results from the Gulf of
Mexico reef fish model
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Angler Heterogeneity and Species-Specific Demand for Recreational Fishing in the Southeast United States*
Tim Haab (Ohio State University)Rob Hicks (College of William and Mary)Kurt Schnier (University of Rhode Island)John Whitehead (Appalachian State University)
*MARFIN #NA06NMF4330055
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Previous NMFS/MRFSS Recreational Valuation Research
McConnell and Strand, 1994 Hicks, Steinbeck, Gautam, Thunberg,
1999 Haab, Whitehead, and Ted
McConnell, 2000 Haab, Hicks, Whitehead, 2004
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Targeting behavior Compare various
angler targeting models
• single-species• aggregates of related
species• all species combined
We are considering:
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We are considering:
Species substitutionEstimate angler willingness to
substitute to other species or species groups when fishing quality or fishing management changes
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We will:
Estimate how willingness to substitute species might differ by angler typesocioeconomic factorspreferencesgear type (i.e., mode)
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We will:
Provide species-specific estimates of economic value for: changes in fishing
quality management (e.g.,
size limits, bag limits)
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To date:
We have identified the feasibility of demand modeling at the species level
Estimated two preliminary demand models
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MRFSS 2000
LA to NC n = 70,781
Southeast 2000 (Limited Valuation Round) n = 42,079
Hook and line trips only (99%), day trips only (67%) [self-reported and < 200 miles one-way distance], delete missing values on key variables n = 18,709 +/-
Targets a species n=11,257 +/-
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Fishing mode
0%
10%
20%
30%
40%
50%
60%
70%
Shore
Party/Charter
Private/Rental
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State of intercept
0%
5%
10%
15%
20%
25%
30%
35%
40%
LA
MS
AL
FL (GoM)
FL (SA)
GA
SC
NC
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Species
425 unique species caught by recreational anglers sampled by the MRFSS
15 species account for 82% of the targeting activity and 38% of the (type 1) catch
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Target Behavior (Prim1)sign
Intercept + p < .01
Years fished + p < .01
Boat owner + p < .01
Shore mode - p < .01
Charter mode - p < .01
Days fished + p < .01
Wave 4 -
Wave 5 + p < .01
Wave 6 + p < .01
Gulf - p < .01
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Traditional species groups
Big game 4%
Bottom fish 4%
Flat fish 5%
Small game 11%
Snapper - grouper 15%
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Top target species of interest from RFP
Red drum 20%
Dolphin 6%
King mackerel 6%
Spanish mackerel 4%
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Four demand models are being pursued
Florida Atlantic Big GameDolphinBig game fish
Gulf of Mexico Reef Fish“Snappers”Shallow water groupersRed snapper
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Four demand models …
Inshore small game: Red drum, spotted seatrout, small game
Offshore small game: King mackerel, spanish mackerel, small game
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GOM Reef Fish Intercept Sites (n = 1224)
0%
10%
20%
30%
40%
50%
60%
70%
80%
90%
State
AL
FL
LA
MS
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Target Species
0%
10%
20%
30%
40%
50%
60%
70%
Target Species
Snappers
Groupers
Red snapper
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“Snappers” (n = 160)gray snapper 48.13%
sheepshead 23.75%
white grunt 11.88%
black sea bass 3.75%
crevalle jack 3.75%
amberjack genus 1.88%
gray triggerfish 1.88%
snapper family 1.25%
yellowtail snapper 1.25%
atlantic spadefish 0.63%
blackfin snapper 0.63%
blue runner 0.63%
vermilion snapper 0.63%
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Shallow water groupers (n = 725)
unidentified grouper 73.38%
gag 17.38%
red grouper 6.07%
grouper genus Mycteroperca 2.9%
black grouper 0.28%
Red snapper (n = 239)
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Mode
0%
10%
20%
30%
40%
50%
60%
70%
80%
Mode
Party/Charter
Private/Rentalboat
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Random Utility Models
Conditional Logit Nested Logit Mixed Logit Latent Class Model
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Conditional Logit
Party/charter boatcounty sites
Private/rental boat county sites
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Nested Logit
Party/charter Private/rental
Counties Counties
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Variables
71 Species/Mode/Site choices Travel cost
[party/charter] TC = charter fee + driving costs + time costs
[private/rental] TC = driving costs + time costs
Quality 5-year historic (type 1) targeted catch rate Predicted type 1 catch rate
Number of MRFSS interview sites in the county
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Conditional Logit
Coeff t-stat
tcfee -0.038 -30.58
snapper 0.077 7.41
grouper 1.178 29.71
redsnapper 0.628 22.87
Log(sites) 0.767 14.16
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Mixed Logit
Coeff t-stat
tcfee_M -0.070 -28.04
tcfee_S 0.034 7.79
snapper 0.046 3.5
grouper 1.19 20.88
redsnapper 0.77 24.35
lognsite 0.66 11.93
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Value of one additional fish per trip
Conditional Mixed
Snapper $2 $1
Grouper $31 $17
Red snapper $17 $11
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Recreational value of an allocation change
$ = V x xHValue per fish = V Change in harvest = Current harvest = H
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Gag
STATE MODE H Value
ALABAMA CHARTER 997 $16,944
ALABAMA PRIVATE/RENTAL 1,193 $20,276
WEST FLORIDA CHARTER 10,503 $178,551
WEST FLORIDA PRIVATE/RENTAL 29,971 $509,512
LOUISIANA CHARTER 304 $5,161
LOUISIANA PRIVATE/RENTAL 381 $6,475
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Red Grouper
STATE MODE H Value
ALABAMA CHARTER 447 $7,602
ALABAMA PRIVATE/RENTAL 104 $1,765
WEST FLORIDA CHARTER 7,659 $130,203
WEST FLORIDA PRIVATE/RENTAL 12,012 $204,199
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Contact
John Whitehead
Department of Economics
Appalachian State University
Boone, NC 28608
http://www.appstate.edu/~whiteheadjc