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A report of the 29th Northeast Regional Stock Assessment Workshop : stock assessment of longfin inshore squid, Loligo pealeii
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1999
[PDF-4.39 MB]
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Alternative Title:Stock assessment of longfin inshore squid, Loligo pealeii
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Description:"Length-based virtual population analysis, seasonal dynamic pool models, and a quarterly surplus production analysis indicate that the loligo pealeii stock is approaching an overfished state, and overfishing is occurring. The production model indicates that current biomass is less than the biomass that can produce maximum sustainable yield (BMSY) and near the biomass threshold of 50% B MSY' .There is high probability that fishing mortality (F) in 1998 exceeded MSY levels. However, the production JIiodel also indicates that the stock has the ability to quickly rebuild from low stock sizes. Length-based analyses indicate that fully-recruited F in 1998 was greater than Froax, and stock biomass is among the lowest in the assessment time series (1987-1998). Recent survey indices of recruitment are below average. Stochastic projections suggest that F should be reduced to rebuild stock biomass to BMSYo"--Abstract.
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Content Notes:by Steven X. Cadrin and Emma M.C. Hatfield.
"September 1999."
System requirements: Adobe Acrobat Reader.
Includes bibliographical references (pages 25-30).
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Rights Information:Public Domain
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Compliance:Library
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