There is increasing concern among fisheries scientists and managers over
the ecosystem effects of fisheries exploitation. This concern has been
motivated by several publications inferring that the structure of marine
ecosystems has been dramatically altered by historical patterns of fishing.
Among the most cited studies is the paper by Pauly...
In the 1950s the Pacific sardine collapsed, and the fishery declined from a
historical peak of over 600,000 metric tons in 1936 to less than 100,000
tons after 1951 and was virtually nonexistent for 25 years (1965-90).
Despite this, the landings of sardine predators increased after the sardine
collapse and...
This paper deals with the sustainable management of a renewable resource
based on individual and transferable quotas (ITQs) when agents differ in terms of
harvesting costs or catchability. In a dynamic bio-economic model, we determine
the conditions under which the manager of an ITQ system can achieve sustainability
objectives which...
Employing an experimental approach, we examine whether the efficiency of fishery management
can be achieved under Individual Transferable Quotas regimes. We analyze the situation in
which subjects can choose one from two vessel types: a large-scale or a small-scale. The fixed
cost for the large-scale is higher than that for...
In Japan, common fishery rights are granted by prefectural governor only to local fisheries cooperative associations (FCAs). Coastal resources like abalones are utilized by local fishers as members of FCAs. Fishery rights are deemed to be real rights and any person encroaching upon this right is subject to fine. Therefore,...
The US Magnuson-Stevens Act authorizes the use of onboard observers to
monitor commercial fisheries catch and bycatch (PFMC 2003). A question
of concern in implementing an observer program is that of the appropriate
level of observer coverage. Current practice varies by fishery; for example,
the California-Oregon drift gillnet fishery for...
After salmon bycatch levels reached record levels in 2006 and 2007 in the
Bering Sea pollock fishery, the North Pacific Fishery Management Council
(NPFMC) began consideration of a hard cap that would close the fishery if
it were reached. The NPFMC asked for input from economists at the
National Marine...
The paper explores to what extent escaped farmed salmon from fish farms affect the willingness-to-pay for recreational fishing of Atlantic salmon in Norwegian rivers. The aim is to quantify the potential externality from escaped farmed species working through the demand for the natural stock of congeners. While the biological and...
It is often taken for granted that taxation of rents is economically nondistortive. In certain areas of natural resource use, e.g. oil extraction and fisheries, this nondistortion principle has been used to justify taxation of what is regarded as resource rents. This paper challenges the view that such taxation is...
The ECOST project aims to develop a new approach for the evaluation of fishing activities and policies in
order to contribute to a better management of aquatic resources which affect sustainable development in
coastal zones around the world. It has to be seen from the wider perspective of equipping public...
Fisheries and aquaculture are part of a complex system with underlying
relationships between species and other activities. This calls for more
integrated assessment, leaving a management based on stock assessment
and single species. The ecosystem approach for fisheries management
(EAF) as well as the more recent ecosystem approach to aquaculture...
Mussels aquaculture is a relevant activity for the fishery sector of the North
Adriatic. Around 15 km of coastal water of the Gulf of Trieste, Italy, are
used for the mussel long line farming, for a production of about 5000
tonn/year. The aim of this work is to assess sustainability...
If the study of the fisheries dynamics increasingly seeks to take into
account the evolution of fishing fleets, the main mechanisms which govern
their evolution at the local, national or international levels, are often not
studied at all, or only partially studied. This applies in particular to vessel
entry and...
Data were collected and investigated on 33 communes, 86 villages with a total area of 22,000 ha lagoon. The research are applied with quantitative and qualitative applications. The results were conducted in stable livelihood in the long-term, ensuring life. The results were showed the thousand of residents, the socio-economic situation,...
Research of value chains in fish industries indicates that there is great
difference in value creation of the domestic part of the value chain between
countries with underdeveloped fish industries and developed fish
industries. This comparison is founded on the authors´ research on the
value chains of Icelandic cod and...
Conservation and management of North American West Coast fisheries
encompass a broad array of issues including the economic, spatial, and
temporal relations between the coastal pelagic species live bait fishery and
the highly migratory species recreational fishery. For the better part the
century, the live bait fishery has supplied live...
The 2010 Annual Economic Report (AER) on the European Union (EU)
fishing fleet, due for publication in the summer of 2010, will provide the
most comprehensive overview to date on the structure and economic
performance of the EU Member States fishing fleets.
For the first time, the data used to...