annotated bibliography of fisheries economics literature - Office of ...

individual gulf vessels of using a turtle excluder device, a key issue in the
ongoing debate over whether TEDs should be used. The results of four
scenarios indicated a decline for negative impacts and an increase for
positive impacts on shrimp production.
Clark, Joy, Wade Griffin, Jerry Clark, and James Richardson (1991).
"Simulated Economic Impact of TED Regulations on Selected Vessels
in the Texas Shrimp Fishery." Marine Fisheries Review, 53(2):1-8.
Shrimp fishermen trawling in the Gulf of Mexico and south Atlantic
inadvertently capture and kill sea turtles that are classified as endangered
species. Recent legislation requires the use of a Turtle Excluder Device
(TED), that when in place in the shrimp trawl, reduces sea turtle mortality.
The impact of the TED on shrimp production is not known. This intermediate
analysis of the TED regulations using an annual firm level simulation model
indicates that the average Texas shrimp vessel had a low probability of being
an economic success before regulations were enacted. An assumption that the
TED regulations resulted in decreased production aggravated this condition and
the change in Ending Net Worth and Net Present Value of Ending Net Worth
before and after a TED was placed in the net was significant at the 5 percent
level.
However, the difference in the Internal Rate of Return for the TED and
non-TED simulations was not significant unless the TED caused a substantial
change in catch. This analysis did not allow for interactions between the
fishermen in the shrimp industry, an assumption that could significantly alter
the impact of TED use on the catch and earnings of the individual shrimp
vessel.
Clarke, Raymond P. and Stacey S. Yoshimoto (1990). "Application of the
Leslie Model to Commercial Catch and Effort of the Slipper
Lobster, Scyllarides squammosus, Fishery in the Northwestern
Hawaiian Islands." Marine Fisheries Review, 52(2):1-7.
Commercial catch and effort data were fit to the Leslie model to
estimate preexploitation abundance and the catchability coefficient of slipper
lobster, Scyllarides squammosus, in the Northwestern Hawaiian Islands (NWHI).
A single vessel fished for 34 consecutive days in the vicinity of Laysan
Island and caught 126,127 total slipper lobster in 36,170 trap hauls.
Adjusted catch of legal slipper lobster dropped from a high of 3.70 to 1.16
lobster per trap haul. Preexploitation abundance at Laysan Island was an
estimate 204,000 legal slipper lobster, which was extrapolated to yield an
estimate of 1.2 x 10 6 to 3.8 x 10 6 lobster for the entire NWHI slipper lobster
fishery.
Clark, Simon and Donald A.R. George (1990). "Investment in the British
Fishing Industry." Economics Research Papers, No.10, Sea Fish
Industry Authority, Fisheries Economics Research Unit, Sea
Fisheries House, 10 Young St., Edinburgh EH2 4JQ.
Vessel length or horsepower are used as proxies for firm size in an
applied study of the capital investment level for each new boat that enters
the fishing industry. The price of fish although statistically insignificant
in the linear model had a positive effect on the level of new investment.
Fuel prices and the interest rate were not statistically significant in the
model due to the nature of the data or the behavior of fishermen,
respectively. The grant rate was highly significant in determining the level
of investment in a new boat. However, this may have been a dominate variable
in the regression equation causing other important variables to appear
insignificant.
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