Nom du corpus

Corpus Systématique Animale

Titre du document

Ionoregulatory and respiratory responses of brown trout, Salmo trutta , exposed to lethal and sublethal aluminium in acidic soft waters

Lien vers le document
Éditeur
Springer (journals)
Langue(s) du document
Anglais
Type de document
Research-article
Mots-clés d'auteur
  • aluminium
  • ionoregulation
  • arterial oxygen
  • acid stress
  • Salmo trutta
Nom du fichier dans la ressource
Poissons_v2b_001857
Auteur(s)
  • Colin P. Waring 1
  • J. Anne Brown 1
Affiliation(s)
  • 1) Department of Biological Sciences, Hatherly Laboratories, University of Exeter, EX4 4PS, Exeter, U.K.
Résumé

Soft water acclimated (Ca2+ 0.02 mM; Na+ 0.03 mM; K+ 0.01 mM; pH 7.0), cannulated brown trout (Salmo trutta) were exposed to various pH and aluminium (Al) regimes (pH 7.0, pH 5.0, pH 5.0 plus Al: 50, 25, and 12.5 ?g l?1) for up to 5 days in order to determine (i) the sublethal concentration of Al at pH 5.0 for this species (ii) their ionoregulatory and respiratory status. No mortality or physiological disturbances were evident at pH 7.0 or pH 5.0. All trout died within 48 h at pH 5.0 in the presence of Al at 50 ?g l?1 and 67% died over the 5 day period at pH 5.0 in the presence of Al at 25 ?g l?1. Fish at these lethal Al concentrations showed significant decreases in arterial blood oxygen content (CaO2) but no changes in plasma osmolarity or the concentrations of plasma Na+, K+ and Cl?. Physiological disturbance was more marked at the 50 ?g l?1 Al concentration. The surviving fish at 25 ?g l?1 showed few signs of physiological recovery while continually exposed to this regime. No fish died during the exposure to water of pH 5.0 containing 12.5 ?g l?1 Al, but physiological disturbance was still apparent. These sublethally-stressed trout showed a transient decline in the plasma concentrations of Na+ and Cl?1. Although CaO2 decreased, recovery was evident. The data suggest that in the brown trout, environmental Al concentration is as important as pH and calcium concentration in determining the physiological status of the fish.

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
  • 1 - Health Sciences ; 2 - Medicine ; 3 - General Medicine
  • 1 - Life Sciences ; 2 - Biochemistry, Genetics and Molecular Biology ; 3 - Physiology
  • 1 - Life Sciences ; 2 - Biochemistry, Genetics and Molecular Biology ; 3 - Biochemistry
Catégories WoS
  • 1 - science ; 2 - physiology
  • 1 - science ; 2 - fisheries
  • 1 - science ; 2 - biochemistry & molecular biology
Identifiant ISTEX
5A4839F2AE5C2BD5560AC6C90852C0F3D57947AA
Revue

Fish Physiology and Biochemistry

Année de publication
1995
Présence de XML structuré
Non
Version PDF
1.3
Score qualité du texte
10
Sous-corpus
  • Poissons
Type de publication
Journal
ark:/67375/1BB-4VPHJRHC-J
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