Showing results for: fishery management Articles
-
Book Review: Economics for Fisheries Management
Economics for Fisheries Management, by R. Quentin Grafton, James Kirkley, Tom Kompas and Dale Squires. Ashgate, 2006. 161pp. ISBN 0-7546-3249-0Keywords: book ...
-
Multiple-criteria decision-making (MCDM) applications in fishery management
This paper provides an up-to-date review of multiple-criteria decision-making (MCDM) applications in fishery management since the last review conducted by Mardle and Pascoe in 1999. The review will primarily draw on the published literature in the English language. This review will also include the author's experience in developing MCDM models to assist policy decision making in fishery ...
-
Fisheries management in a sea of uncertainty: the role and responsibility of scientists in attaining a precautionary approach
On the political level, there is now an agreement that the fish stocks in the North Sea should be managed in accordance with the precautionary principle. The goal of this paper is to show that fisheries scientists will have to adapt to the new requirements represented by this principle, first and foremost by adjusting the model of decision-making in a way that facilitates communication of the ...
-
Overfishing in the Gulf of Thailand: policy challenges and bioeconomic analysis
This paper estimates maximum sustainable yield and maximum economic yield from Schaefer and Fox surplus production bioeconomic models to find evidence of biological and economic overfishing, and their consequences in Gulf of Thailand demersal fisheries. The paper examines alternative policy instruments to reduce overfishing. The discussion emphasizes strengthening fishery management for ...
-
Challenges and opportunities for fisheries managers in developing countries: a case for economic eclecticism
Fisheries managers and advisors in developing countries face challenges that may be difficult to overcome, because they use doctrines, principles and models of management and economics that do not adequately explain the problems that need to be solved. This may perpetuate non-sustainable policies, because broader issues important to fisheries sustainability are not accounted for more eclectic ...
-
Recovering from overexploitation: the European fisheries of the North Sea
In the last two decades, the fisheries of the North Sea have experienced substantial declines in the population of a number of commercially harvested species. The fisheries have also experienced the development of considerable overcapacity as a result of ineffective management and subsidies. Management of the fishery is complicated by the existence not only of multiple species and gears, but also ...
-
The status of USA's commercial fisheries and management and crystal-balling the future
Despite the enormity of the commercial fishing industry of the USA, the structure of the industry and various interactions are not known on a national basis. The US public wants seafood, but current domestic production capabilities appear to be inadequate to support the growing demand for seafood. Imports, particularly aquacultured products, are increasing and expected to further increase in the ...
-
Effects of ENSO 1997?1998 on the distribution of small pelagic fish off the west coast of Baja California
Changes in the Small Pelagic Fish (SPF) densities and distribution during ENSO 1997?1998 were found from observations made between 1994 and 2001 along the northwestern coast of Baja California, Mexico. Results showed that temperature and variables associated with the surface mixing processes had an effect on the SPF shoal behaviour and distribution. Between September and December 1997, acoustic ...
-
Are fisheries going from bad to worse? The case of the Northeast Arctic cod
The Northeast Arctic cod is one of the few fish stocks with a long time series of landings, stock size, recruitment and rate of exploitation. This paper discusses how this stock and the catches it supports have developed since 1900. Both catches and the stock increased from 1900 until after the Second World War. After the war the stock declined and so did the catches from the late 1950s. A rising ...
-
Communities, knowledge and fisheries of the future
The 'human dimension' in fisheries management has historically been incorporated via a specific economic understanding of fisheries wedded to a single-species approach. Meeting the challenge of fisheries, however, will require a broadening of fisheries science towards an ecosystems-based approach. There is also the need for a parallel shift in social science understandings of fishing towards ...
-
Alternative futures for Southern Bluefin Tuna
This paper examines the outcomes of alternative management scenarios for the Southern Bluefin Tuna (SBT) fishery over the next 30 years. Two criteria are used to characterise outcomes: economic efficiency as measured by the present value of net benefits generated and conservation as measured by the predicted size of the spawning stock biomass in 20 years' time (SSB20). A bioeconomic model, ...
-
Fisheries bioeconomics: why is it so widely misunderstood?
Many fisheries management systems, even when based on apparently sound science, have failed to prevent severe overfishing. And even when successful in this sense, such systems have frequently resulted in a large degree of excess fishing capacity. The reason for these failures can often be found in a lack of consideration of the economic incentives affecting fishermen. Specifically, when forced to ...
-
Elite capture in local fishery management - experiences from post–socialist Albania
Local governance based on institutions for collective action can help overcome social dilemmas in natural and agricultural resource management. A common path towards local governance is decentralisation, and within this context, a transfer of property rights from central government to local resource users. Yet, despite the successes of many decentralisation policies, the phenomenon of elite ...
-
From yeast, researchers learn how populations collapse
Findings could help fishery and wildlife managers monitor their stocks before disaster strikes. Written by Anne Trafton, MIT News Office.You can read the original new in MIT NewsIn the early 1990s, overfishing led to the collapse of one of the most bountiful cod fisheries in the world, off the coast of Newfoundland. Twenty years later, the cod population still has not recovered, dramatically ...
-
Valuation and Management of Fishing Resources Under Price Uncertainty
The traditional expected-net-present-value methods cannot properly capture the management flexibility and strategic value aspects of a fishery, and may understate its value. Instead, this paper develops a Real Options model to conceptualize and evaluate fishery exploitation flexibility. Specifically, general models to value the opportunity to either exploit or invest in a fishery are presented. ...
-
Land, water, and forests : assets for climate resilient development in Africa
Africa is a continent rich in natural resources. Its land, water, and forests underpin the sustained productivity of food crops and livestock on which millions of Africans depend directly for their livelihood and survival. These resources are major assets on which most countries depend for economic growth and sustainable development. In the face of growing climate change threats, such as ...
-
Population dynamics of 15 fish species in Grand-Lahou lagoon (West Africa, Côte d’Ivoire)
This study described growth, mortality, recruitment patterns and exploitation rates of 15 fish species in Grand-Lahou lagoon (Côte d’Ivoire). Monthly length-frequency data collected from artisanal fisheries from November 2013 to October 2014 were analyzed with FiSAT software using the ELEFAN package to estimate the population parameters of fishes. Asymptotic values for total length ...
-
Pacific fisheries need tech to track climate impact
Climate change could benefit some Pacific fisheries, but tracking the success of adaptation needs effective monitoring, says Johann Bell. Climate change could derail plans by Pacific Island countries and territories (PICTs) to use fisheries and aquaculture to foster economic development and food security. Bottom-dwelling coastal fish are expected to be hardest hit. Under continued high ...
By SciDev.Net
-
Interdependence between pollution and fish resource harvest policies
This study presents a bio-economic model in which the dynamics of a fishery are affected by marine pollution both directly and indirectly. From the optimality analysis it can be seen that, as long as a contaminating sector exists near coastal areas, the policy on fish resource harvest will be more intense initially (when the environmental situation is better) and less intense in subsequent ...
-
Modern strains put Lake Victoria in critical condition
Pollution and overfishing in Lake Victoria have become so severe that scientists believe they threaten the health and livelihoods of millions of East Africans. And researchers in the three countries bordering the world’s largest tropical lake — Kenya, Tanzania and Uganda — largely blame governments and national agencies for failing to control the effluent and other waste ...
By SciDev.Net
Need help finding the right suppliers? Try XPRT Sourcing. Let the XPRTs do the work for you