To achieve sustainable fisheries, ecosystem-based fisheries management
yields increasing attention. However, so far mainly single-species models
are used to develop management advice, not accounting for species
interaction. In particular many traditional fisheries economic models have
been criticized by biologists, especially if results were gained by rather
simple biomass models. Therefore,...
We define the notion of sustainable yields for ecosystem, with particular
emphasis on long-run consistency between ecological and economic conflicting
objectives. We provide a way to compute sustainable yields by means of
a viability analysis of generic ecosystem models with harvesting. We apply
our approach to a Lotka–Volterra model of...
The northwest coast of Mexico is accountable for almost 70 % of the
country´s fishery production. This region, which includes the Gulf of
California and the Pacific coast of the Baja California Peninsula, is also
extremely important in terms of biodiversity and the presence of endemic
species. Consequently, eleven marine...
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...
It has been established that the path of a fishery over time, i.e. stocks, fleets, effort and profits, depends inter alia on the enforcement of the fisheries management rules in place. It has further been established that optimal enforcement of fisheries management rules depends inter alia on the shadow value...
This paper presents the findings of an 18 months global review of organisations providing sustainable fisheries information to consumers and other channel intermediaries completed in December 2009*. The project was managed by a consortium of nine organisations involved with seafood, the Fish Sustainability Information Group (FSIG), from around the world...
Over the past century, the tuna canning industry has been dominated by a few big companies, some of
them having changed of ownership or merged: these oligopolistic firms are the “big three” in the USA,
Van Camp, Star Kist, and Bumble Bee, the French Saupiquet, the Italian Trinity Alimentari and...
A Seafood Environmental Management Systems manual (SEMS) has been developed by Bord Iascaigh
Mhara (The Irish Sea Fisheries Board) in conjunction with the Irish fishing industry to encourage
fishermen to adopt an environmentally conscious, responsible and compliant approach to their business.
The documented risk-based SEMS approach developed is essentially a...
In the mid-90s the Commonwealth Scientific and Research Organisation
(CSIRO) funded a social science (economics) research trip to the Gulf of
Carpentaria. The objective of the trip was to observe and model
commercial fishing patterns in the NPF, and develop an all encompassing
model for describing fleet dynamics in the...