Nom du corpus

Corpus Systématique Animale

Titre du document

Coral reef fisheries stock assessment

Lien vers le document
Éditeur
Springer (journals)
Langue(s) du document
Anglais
Type de document
Review-article
Nom du fichier dans la ressource
Poissons_v2b_000117
Auteur(s)
  • P. A. Medley 1
  • G. Gaudian 1
  • S. Wells 2
Affiliation(s)
  • 1) Fisheries Department, Grand Turk, Turks and Caicos Islands, British West Indies
  • 2) Centre for Tropical Coastal Management Studies, The University, Ridley Building, NE1 7RU, Newcastle upon Tyne, United Kingdom
Résumé

Although all fisheries are multispecies and spatially heterogeneous, coral reef fisheries are an extreme in both respects. The two main approaches to stock assessment have been either to consider individual species separately or to lump all species together. Both are limited in their predictive power. The lack of ecological knowledge and the large number of parameters required make methods based on single species often impractical or expensive. However, where the appropriate information is available, ecological studies do not provide significant improvements on yield-per-recruit or surplus yield models currently used. Alternative community models based on aggregates of species lack predictive power, empirical support and relative data. Models are further limited because they do not address various economic aspects, fish movement and recruitment, all of which must be spatially resolved. However, the ECOPATH model, based on trophic compartments, represents a new approach useful to multispecies assessment, and the only way at present to include predation in stock models. In practice the data available will be the most important factor in the choice of stock assessment model. The major concern for management of many coral reefs is conservation of the habitat and stocks. In some cases this has been achieved with little reference to stock assessment, by using community management and closed areas, which are receiving increasing support. However, once the objective of conservation is achieved, stock assessment should have an important role in improving the economic performance of the fisheries. The wider problems of management have no simple solutions, but managers should look to adaptive management, designing their own experiments to choose between management models.

Catégories Science-Metrix
  • 1 - applied sciences
  • 2 - agriculture, fisheries & forestry
  • 3 - fisheries
Catégories INIST
  • 1 - sciences appliquees, technologies et medecines
  • 2 - sciences biologiques et medicales
  • 3 - sciences biologiques fondamentales et appliquees. psychologie
Catégories Scopus
  • 1 - Life Sciences ; 2 - Agricultural and Biological Sciences ; 3 - Aquatic Science
Catégories WoS
  • 1 - science ; 2 - marine & freshwater biology
  • 1 - science ; 2 - fisheries
Identifiant ISTEX
77708B67684CF39EE6A28BD228E957353A0FAF3A
Revue

Reviews in Fish Biology and Fisheries

Année de publication
1993
Présence de XML structuré
Non
Version PDF
1.3
Score qualité du texte
10
Sous-corpus
  • Poissons
Type de publication
Journal
ark:/67375/1BB-45GSQZ94-7
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