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Corpus Systématique Animale

Titre du document

Contamination of food by crude oil affects food selection and growth performance, but not appetite, in an Arctic fish, the polar cod ( Boreogadus saida )

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Springer (journals)
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Type de document
Nom du fichier dans la ressource
Mammiferes_v2b_02497, Oiseaux_v2b_02659, Poissons_v2b_004792
  • Jørgen S. Christiansen 1
  • Stephen G. George 2
  • 1) Norwegian Institute of Fisheries and Aquaculture, P.O. Box 2511, N-9002, Tromsø, Norway
  • 2) NERC Unit of Aquatic Biochemistry, School of Natural Sciences, University of Stirling, FK9 4LA, Stirling, Scotland, UK

The polar cod (Boreogadus saida) is recognized as a key species in Arctic marine food webs and it may, therefore, be important for the transfer of xenobiotics from lower trophic levels to its main predators, birds and sea mammals. The present work examines the effects of foods contaminated with 200 or 400 ppm crude oil on food selection patterns and appetite-growth relationships in polar cod using X-radiography. It is shown that sexually mature polar cod consumed mixtures of uncontaminated and oil-contaminated foods, and did not show a reduced overall appetite as compared with fish provided with uncontaminated food only. Food selection was, however, influenced by both sex and individual appetite. Male fish selected uncontaminated food when appetite was low, whereas females ingested contaminated and uncontaminated foods equally, irrespective of appetite level. The ingestion of oil-contaminated food led to a significant depression in growth performance in both male and female fish. Food contaminated with oil at a concentration of 500 ppm was completely rejected by both sexes.

Catégories Science-Metrix
  • 1 - natural sciences
  • 2 - biology
  • 3 - marine biology & hydrobiology
Catégories INIST
  • 1 - sciences appliquees, technologies et medecines
  • 2 - sciences biologiques et medicales
  • 3 - sciences biologiques fondamentales et appliquees. psychologie
  • 4 - psychologie. psychophysiologie
Catégories Scopus
  • 1 - Life Sciences ; 2 - Agricultural and Biological Sciences ; 3 - General Agricultural and Biological Sciences
Catégories WoS
  • 1 - science ; 2 - ecology
  • 1 - science ; 2 - biodiversity conservation
Identifiant ISTEX

Polar Biology

Année de publication
Présence de XML structuré
Version PDF
Score qualité du texte
  • Mammiferes
  • Oiseaux
  • Poissons
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