Search results
Results from the WOW.Com Content Network
After a stock assessment is completed, the findings are provided to regional fishery management councils. The council identifies stocks that are in danger of overfishing or currently overfished, and then develops fishery management plans and regulations. Fishery management plans (FMP) must protect fishery resources while maintaining ...
In fisheries science and ecology, stock assessment is an important tool in fisheries management. In particular, to ensure continued, healthy, fish stocks, measurements of the Spawning Stock Biomass (the stock population capable of reproducing) allows sensible conservation strategies to be developed and maintained through the application of ...
NOAA Fisheries manages 461 stocks or stock complexes in 46 fishery management plans, using stock assessments to determine their status. [20] Under the MSA, fisheries management decisions in the United States are made primarily by eight regional fishery management councils.
This means that decisions about stock management can also be made by the people doing the harvesting. [1] The best practice is to standardise the effort employed ( e.g. number of traps or duration of searching), which controls for the reduction in catch size that often results from subsequent efforts.
Today, due to the pre-allocation of catch that accompanies IFQs, the season lasts nearly eight months and boats deliver fresh fish at a steadier pace. However, halibut stocks have been in continuous decline for over a decade, as poor stock assessments leading to overfishing have caused a substantial decline in biomass. Additionally, despite the ...
Hilborn, Ray and Walters, Carl J (1992) Quantitative Fisheries Stock Assessment Springer. ISBN 978-0-412-02271-5; McCallum, Hamish (2000) Population Parameters Blackwell Publishing. ISBN 978-0-86542-740-2; Prevost E and Chaput G (2001) Stock, recruitment and reference points Institute National de la Recherche Agronomique. ISBN 2-7380-0962-X.
Empirical research in the past two decades has shown that catch share management of fisheries has a variety of ecological, economic and social outcomes when it is compared with traditional management of fishery inputs. Studies examining the ecological impacts of catch share management show that they stabilize landings and catch limits. [18]
Virtual population analysis was introduced in fish stock assessment by Gulland in 1965 based on older work. The technique of cohort reconstruction in fish populations has been attributed to several different workers including Professor Baranov from Russia in 1918 for his development of the continuous catch equation, Professor Fry from Canada in ...