Pacific sardine (Sardinops sagax), which is a transboundary resource
targeted by Mexican, U.S. and Canadian fisheries, has exhibited extreme
decadal variability in its abundance and geographic distribution
corresponding to water temperature regime shifts within the California
Current Ecosystem. Our study develops a three-agent bioeconomic
framework that incorporates environmental effects on...
Conservation goals and resource use can easily conflict when externalities
exist. This is the case in the Baltic Sea with grey seal (Halichoerus grypus)
and Atlantic salmon (Salmo salar). Both of the species have been defined
as critically endangered in the late 20th century but due to conservation
schemes, harvest...
The paper reviews the management and bioeconomic modeling of the Southern Bluefin Tuna
stock. It describes two studies using simultaneous, non-cooperative, three player games to predict
revenue and stock outcomes generated by a deterministic, discrete, age-structured model of the
SBT population. Two versions of the model, corresponding to biological and...
If the role of MPAs as a conservation tool is now widely demonstrated
even with some variability, their effects on fishery yields, tourism revenues
and social aspects are only confirmed by very few studies. More than 550
MPA now exist in the South Pacific mostly community based managedand
the expectations...
In developed – and some less-developed – societies, managing an “open access,” renewable
natural resource sector generally involves taxes, quotas, or other government or community
restrictions. But some cultures, especially in their early years, have taken a different approach,
one that involves transfer of part of the output of the...
Since the seventies, the Malagasy fishery sector management has been
oriented by three paradigms: development, rationalization (looking for
economic efficiency) and attempts of sustainable development (to reconcile
economic, social and conservation goals). The institutional and legal frame
of the marine sector has been characterized by many transformations linked
to the...
This paper develops a count data model of target species and bycatch
production for an arbitrary number of species that handles correlation
between species and over time. The model is applied to a large observer
dataset for fishing trips taken from 1990 to 2008 for roughly 150 vessels
participating in...
In the quest to limit the bycatch of non-target species, marine protected
areas (MPAs) have been frequently utilized. MPAs are popular with
ecologists and fishery managers because of their relative ease of
administration, habitat protection benefits, and the widespread acceptance
of MPAs as an instrument of choice for the ecosystem...
The last fifteen years have seen increased reference to and adoption of comanagement
in fisheries in Southern Africa, usually as a conditionality for
(national or international) development aid in the sector. Co-management is
supposed to improve the proficiency and efficiency of fisheries
management through decentralization and democratization of decisionmaking,
which...