Review of Northeast Fishery Stock Assessments.

The collapse of cod, flounder, and haddock fish stocks in the Northeast United States has caused widespread concern among managers and fishers in the United States and Canada. The diminishing stocks have forced managers to take strict regulatory measures. Numerous questions have been raised about th...

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Detalles Bibliográficos
Clasificación:Libro Electrónico
Autor principal: Staff, National Research Council
Formato: Electrónico eBook
Idioma:Inglés
Publicado: Washington : National Academies Press, 1998.
Temas:
Fish stock assessment > New England.
Fishery management > New England.
Ressources halieutiques > Évaluation > Nouvelle-Angleterre.
Pêches > Gestion > Nouvelle-Angleterre.
Fish stock assessment
Fishery management
New England
Acceso en línea:Texto completo
Tabla de Contenidos:
  • Review of Northeast Fishery Stock Assessments
  • Copyright
  • Contents
  • EXECUTIVE SUMMARY
  • ADEQUACY OF SCIENTIFIC INFORMATION FOR MANAGEMENT
  • JUSTIFICATION FOR MANAGEMENT ACTIONS
  • EFFECTS OF MANAGEMENT REGULATIONS
  • SUFFICIENCY OF SURVEY AND LANDINGS DATA
  • USEFULNESS OF STOCK ASSESSMENTS AS PREDICTIVE TOOLS
  • ALTERNATIVE METHODS TO REGULATE CATCH
  • FACTORS AFFECTING ABUNDANCE OF STOCKS
  • OTHER CAUSES OF STOCK FLUCTUATIONS
  • RECOMMENDED ACTIONS
  • 1 INTRODUCTION
  • GROUNDFISH RESOURCES OF THE NORTHWESTERN ATLANTIC
  • HISTORICAL EXPLOITATION AND ASSESSMENTMODERN EXPLOITATION AND ASSESSMENT
  • DESCRIPTION OF 1997 U.S. STOCK ASSESSMENT FOR COD, HADDOCK, AND YELLOWTAIL FLOUNDER
  • Terms of Reference
  • United States and Canadian Stock Assessment Process
  • Stock Assessment Procedure and Timing in 1997
  • Dealer and Vessel Data
  • Trawl Surveys
  • Age Sampling
  • Models Used
  • Results
  • HISTORY AND PURPOSE OF THIS STUDY
  • 2 GENERAL REVIEW OF NORTHEAST GROUNDFISH STOCK ASSESSMENTS
  • INVESTIGATION OF NORTHEAST FISHERY STOCK ASSESSMENTS
  • Replication of Assessment Results
  • Evaluating Consequences of Alternative Management ActionsCOMPARISON WITH ASSESSMENTS AROUND THE WORLD
  • Input Data
  • Method and Calibration
  • Analyses Included in the Assessment
  • Provision of Advice
  • Methods for Regional Stock Assessment
  • U.S. Northeast Coast
  • Canadian Maritimes
  • U.S. West Coast
  • Assessments and Management of Fish Stocks by International Council for the Exploration of the Sea (ICES)
  • Assessments and Management of Whale Stocks by the International Whaling Commission (IWC)
  • Precautionary Management Advice
  • Summary
  • GENERAL EVALUATION OF NORTHEAST GROUNDFISH STOCK ASSESSMENTS BASED ON RECOMMENDATIONS FROM IMPROVING FISH STOCK ASSESSMENTSSTATUS OF THE FIVE STOCKS
  • Gulf of Maine Cod (NEFSC, 1997a; pp. 51-107)
  • Stock Size and Condition
  • Recent Exploitation Rates
  • Have Current Regulations Reduced Fishing Mortality (F)?
  • Will Yield-Per-Recruit Change with Lower Fishing Mortality (F)?
  • Will Recruitment Increase with Increasing Spawning Biomass or Decline with Recent High Fishing Mortality (F)s?
  • Alternative Projections for Gulf of Maine Cod
  • Georges Bank Cod (NEFSC, 1997a.
  • Pp. 108-170)Stock Size and Condition
  • Recent Exploitation Rates
  • Have Current Regulations Reduced Fishing Mortality (F)?
  • Will Yield-Per-Recruit Change with Lower Fishing Mortality?
  • Will Recruitment Increase with Increasing Spawning Biomass or Decline with Current Fishing Mortality (F)?
  • Georges Bank Haddock (NEFSC, 1997a; pp. 171-223)
  • Stock Size and Condition
  • Recent Exploitation Rates
  • Have Current Regulations Reduced Fishing Mortality (F)?
  • Will Yield-Per-Recruit Improve with Lower Fishing Mortality (F)?

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