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

the models detected a statistically significant redirection of effort from
swordfish to tuna since the imposition of management measures. This evidence
suggests that the problems of recruitment failure and declining average size
per harvested fish due to overfishing which now characterize the swordfish
fishery should be anticipated with respect to tuna stocks and addressed in
future management measures.
Taylor, Tim, Chuck Adams, and Jeffrey Rodrick (1995). "An Economic
Analysis of Effort Supply Relationships Between the Swordfish and
Tuna Fisheries in the South Atlantic and Gulf of Mexico." Final
MARFIN Project Report, MARFIN Project Number NA-37FF0055, Food and
Resource Economics Department, P.O. Box 110240, Institute of Food
and Agricultural Sciences, University of Florida, Gainesville, FL.
In June 1991, domestic and international fishery management agencies
imposed quotas and minimum size requirements on participants in the North
Atlantic swordfish fishery in an attempt to reduce the high rate of fishing
mortality that threatens the future commercial viability of the swordfish
fishery. However, findings from a 91-92 MARFIN report (Thunberg, et. al.,
1992) indicate that management objectives designed to limit swordfish harvest
may initiate a redirection of effort toward the many commercially valuable
tuna species. Tuna may be landed with essentially the same gear and vessels
that are used in the pursuit of swordfish. Therefore, the management
initiatives imposed in 1991 have implications for both swordfish and tuna
stocks. The objectives of this study were 1) to analyze the economic
interrelationships between swordfish and tuna in the south Atlantic and Gulf
of Mexico region, in particular to attempt to determine the importance of
exvessel prices in conditioning the direction of effort between these two
potential target species, and 2) to estimate the effect of swordfish
management policy on longline fishing effort and landings in this region. To
accomplish these goals, a dual based revenue function was specified, from
which effort supply functions were derived and estimated. These functions
related directed effort with exvessel prices and a composite input, and were
used to test for non-jointness in inputs, i.e. the output of one species is
determined independently of the price of the other species in a multi-product
fishery. Results indicate that nonjointness is rejected for swordfish and
tuna, implying an economic interrelationship does exist. This finding calls
into question the ability to manage swordfish as a single species. Further,
the models detected a statistically significant redirection of effort from
swordfish to tuna since the imposition of management measures. This evidence
suggests that the problems of recruitment failure and declining average size
per harvested fish due to overfishing which now characterize the swordfish
fishery should be anticipated with respect to tuna stocks and addressed in
future management measures.
Teisl, Mario F., and Kevin J. Boyle (1997). Needles in a Haystack: Cost-
Effective Sampling of Marine Sport Anglers. Marine Resource Economics,
12(1):1-10.
An obstacle to conducting economic studies of marine sport anglers is
the difficulty and expense in drawing a representative sample. Unlike inland
fishing, where licenses are required in all states, only selected states
require a marine sport fishing license and these license usually only cover
selected marine fishing activities. Currently, there are no low cost methods
of obtaining a representative sample of marine anglers because they are
generally not licensed, use multiple access points, and represent a small
proportion of the general population. The difficulty and expense of drawing a
representative sample may have stifled attempts to study marine anglers. We
test alternative sampling strategies by comparing the characteristics of a
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