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

Alternatives are presented that will reduce bycatch. Because BRDs are not 100
percent effective, some reduced level of incidental take will continue to
occur. A reduction or loss of shrimp through the BRD also may occur. The
amount of shrimp loss is dependent on the type of BRD used and the operation
of the trawl and vessel. In areas not directly affected by this action (i.e.,
state controlled waters), the fishery may continue to take incidental catch.
Ecological modeling suggests that the use of the three most effective BRDs
will result in a decline in shrimp biomass ranging from 5.9 to 8.2 percent
(Martinez et al. 1966) as a result of increased predation and a reduction in
available nutrients for recycling. The subsequent effect on shrimp landings
is unknown because over the fast five years natural variability in landings
has averaged about 12 percent. However, the impact of BRDs on the shrimp
fishery in the Gulf of Mexico is expected to be substantial ranging from 3.6
billion to -1.6 billion dollars. The expected preferred BRD that achieve the
bycatch reduction target of 50 percent should reduce the value of the shrimp
fishery by 280 million dollars.
Gulf of Mexico Fishery Management Council (1996). Draft Amendment Number 9
to Fishery Management Plan for the Shrimp Fishery of the Gulf of Mexico,
U.S. Waters With Supplemental Environmental Impact Statement, Regulatory
Impact Review, Initial Regulatory Flexibility Analysis, and Social
Impact Assessment. Lincoln Center, Suite 331, 5401 West Kennedy
Boulevard, Tampa, Florida, September, 145 pp.
This DSEIS addresses the issue that shrimp trawls have a significant
bycatch of nontarget species of finfish; most of which are discarded dead.
Consequently, fisheries directed at the discarded species and other fauna may
be adversely affected and ecosystem diversity may be reduced. Red snapper is
one species documented to be overfished and unable to recover because of the
unacceptably high mortality of juveniles taken incidentally in shrimp trawls.
Alternatives are presented that will reduce bycatch. The proposed measures
address problem number 4 of the FMP concerning conflicts with the Gulf s reef
fish fishery and Management Objective number 5 to minimize the incidental
capture of finfish by shrimpers, when appropriate. Because BRDs are not 100
percent effective, some reduced level of incidental take will continue to
occur. A reduction or loss of shrimp through the BRD also may occur. The
amount of shrimp loss is dependent on the type of BRD used and the operation
of the trawl and vessel. In areas not directly affected by this action (i.e.,
state controlled waters), the fishery may continue to take incidental catch.
Ecological modeling suggests that the use of the three most effective BRDs
will result in a decline in shrimp biomass ranging from 5.9 to 8.2 percent
(Martinez et al. 1966) as a result of increased predation and a reduction in
available nutrients for recycling. The subsequent effect on shrimp landings
is unknown because over the fast five years natural variability in landings
has averaged about 12 percent. However, the impact of BRDs on the shrimp
fishery in the Gulf of Mexico is expected to be substantial ranging from 1.1
billion to -.366 billion dollars. The expected preferred BRD that achieve the
bycatch reduction target of 50 percent should reduce the value of the shrimp
fishery by 117 million dollars.
Gulf of Mexico Fishery Management Council (1996). Minutes. Shrimp Advisory
Panel, Biloxi, Mississippi, Lincoln Center, Suite 331, 5401 West Kennedy
Boulevard, Tampa, Florida, June 10, 16 pp.
Review of shrimp amendment 9 to reduce bycatch in the Gulf of Mexico
shrimp fishery with recommendations to improve the amendment.
Gulf of Mexico Fishery Management Council (1996). Minutes. Shrimp Advisory
Panel, Biloxi, Mississippi, Lincoln Center, Suite 331, 5401 West Kennedy
2 6 3