Nom du corpus

Corpus Systématique Animale

Titre du document

Food consumption and diet composition of cod, Gadus morhua , inhabiting the southwestern Gulf of St. Lawrence

Lien vers le document
Springer (journals)
Langue(s) du document
Type de document
Mots-clés d'auteur
  • Fish
  • Food habits
  • Stomach analysis
  • Bioenergetics
  • Predation
  • Prey
  • Species interactions
Nom du fichier dans la ressource
Arthropodes_v2b_00612, Mollusques_v2b_00185, Poissons_v2b_000903, Vers_v2b_00122
  • Kenneth Waiwood 1
  • Jacek Majkowski 2
  • 1) Marine Fish Division, Department of Fisheries and Oceans, Biological Station, St. Andrews, E0G 2X0, New Brunswick, Canada
  • 2) Division of Fisheries Research, C.S.I.R.O. Marine Laboratories, P. O. Box 21, 2230, Cornulla, NSW, Australia

Synopsis: Stomach content analysis of commercial size cod, Gadus morhua, inhabiting the southwestern Gulf of St. Lawrence are presented for the period May to November 1980. Season- and size-related changes in the diet composition are indicated and the results compared to those of earlier studies. The extent of cod predation on major prey groups is evaluated by estimating their consumption by cod age-groups 3–15. The evaluation is based on the estimate of food intake by individual cod of different ages derived with the aid of a procedure based on Ursin growth theory, estimates of numbers-at-age from cohort analysis and the results of stomach content analysis. With the exception of American plaice, Hippoglossoides platessoides, and snow crab, Chionoecetes opilio, the consumption of commercially important species was relatively low and restricted to older cod. Commercially important species accounted for less than 12% of the total food biomass consumed by cod during the study period. The remainder consisted of other fish (18%), decapods (22%), euphausiids (15%), molluscs (11%), annelids (8%), and other invertebrates (15%). Methods are suggested to improve the above estimates of total and individual prey biomasses consumed by the fish population.

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
  • 4 - productions animales
Catégories Scopus
  • 1 - Life Sciences ; 2 - Agricultural and Biological Sciences ; 3 - Aquatic Science
  • 1 - Life Sciences ; 2 - Agricultural and Biological Sciences ; 3 - Ecology, Evolution, Behavior and Systematics
Catégories WoS
  • 1 - science ; 2 - marine & freshwater biology
  • 1 - science ; 2 - ecology
Identifiant ISTEX

Environmental Biology of Fishes

Année de publication
Présence de XML structuré
Version PDF
Score qualité du texte
  • Arthropodes
  • Mollusques
  • Poissons
  • Vers
Type de publication
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