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

Atmospheric Administration, National Marine Fisheries Service,
Southeast Fisheries Center, 75 Virginia Beach Drive, Miami,
Florida.
The usefulness of virtual population analysis (VPA) for estimating
mortality and population size independently of fishing effort data has led to
detailed analyses of the quality of the estimates given various sources of
error in the inputs. For the most part, these studies have dealt with the
possible consequences of using erroneous inputs or inputs characterized by
some degree of uncertainty. Largely ignored in the literature is the problem
of biases due specifically to systematic errors in ageing. In this study, we
use simulation analysis to examine the performance of three methods to handle
the plus group. The analyses that follow are focused on the effects that
systematic ageing errors may have on the conclusions drawn from the VPAs. The
simulations are loosely based on swordfish (Xiphias gladius) data from the
North Atlantic.
Restrepo, Victor R., Joseph E. Powers, and Steven C. Turner (1990).
"Incorporating Uncertainty in VPA Results Via Simulation." ICCAT
Working Document, SCRS/90/, Cooperative Institute for Marine and
Atmospheric Studies, Rosenstiel School of Marine and Atmospheric
Science, University of Miami, 4600 Rickenbacker Causeway, Miami,
Florida and U.S. Department of Commerce, National Oceanic and
Atmospheric Administration, National Marine Fisheries Service,
Southeast Fisheries Center, 75 Virginia Beach Drive, Miami,
Florida.
Simulation methods are employed to allow incorporation of uncertainty in
input parameters to the ADAPT VPA methodology. Empirical probability
distributions describing the VPA results are developed using Monte Carlo
techniques. The methodology described allows for incorporation of uncertainty
parameters that are either internal or external to the ADAPT methodology.
Restrepo, V.R., G.P. Scott, and J.E. Powers (1991). "Analysis of North
Atlantic Swordfish Catch-At-Age Data Under Alternative Hypotheses
About Growth and Sex Ratio." ICCAT Working Document, SCRS/91/47,
CIMAS, University of Miami, 4600 Rickenbacker Causeway, Miami, FL,
and NMFS, Southeast Fisheries Center, 75 Virginia Beach Dr.,
Miami, FL.
Information about differences in sex ratio at size and possible sexual
dimorphism in growth have raised questions regarding likely biases that may be
incurred during swordfish stock assessments. In this study, the 1978-89 catch
at length data is separated into sexes and converted into catch at age using
three growth curves (two sex specific ones and the one used in the 1990
assessment). The U.S. and Spain CPUE data were treated similarly to derive
age specific indices of abundance for each sex-growth curve combination.
Virtual population analyses (VPAs) were carried out on the resulting data sets
to better understand how trends in population size and fishing mortality may
differ depending on the growth hypothesis used.
Rettig, R. Bruce (1984). "License Limitation in the United States and
Canada: An Assessment." North American Journal of Fisheries
Management, 4(3):231-248.
License limitation is finding increasing acceptance. Reasons for growth
in license control include its relationship to other management measures and
its similarity to other forms of public regulation in North American.
Experiences with license control in several areas of the United States and
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