Nom du corpus

Corpus Systématique Animale

Titre du document

Differential effects of salinity changes on two estuarine fishes, Leiostomus xanthurus and Micropogonias undulatus

Lien vers le document
Éditeur
Springer (journals)
Langue(s) du document
Anglais
Type de document
Research-article
Nom du fichier dans la ressource
Poissons_v2b_001967
Auteur(s)
  • Mary L. Moser 1
  • Lawrence R. Gerry 2
Affiliation(s)
  • 1) Zoology Department, North Carolina State University, Box 7617, 27695-7617, Raleigh, North Carolina
  • 2) St. Johns River Water Management District, Reflections Building, Suite 201 7775 Baymeadows Way, 32256, Jacksonville, Florida
Résumé

Salinity fluctuation has been proposed as an important determinant of estuarine fish distribution. To test this idea, we compared distribution, behavioral preference and physiological sensitivity of two juvenile estuarine fishes, spot (Leiostomus xanthurus) and croaker (Micropogonias undulatus), with respect to salinity change. In field collections, spot: croaker ratios were positively correlated with salinity variation. Subsequent behavioral observations revealed that croaker tend to cross a 10‰ salinity gradient less often than spot. We proposed that energetic costs of salinity adaptation may be higher for croaker, resulting in the observed avoidance behavior. Oxygen consumption rates over rapid salinity fluctuations showed no significant differences in metabolic response between species, although there was some indication that sensitivity changes with fish size. Apparently, juvenile spot and croaker are well-equipped to withstand extreme changes in salinity. We conclude that environmental factors correlated with salinity change may be responsible for distribution differences between these two abundant species.

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 - Physical Sciences ; 2 - Environmental Science ; 3 - General Environmental Science
  • 1 - Life Sciences ; 2 - Agricultural and Biological Sciences ; 3 - Aquatic Science
  • 1 - Physical Sciences ; 2 - Environmental Science ; 3 - Environmental Chemistry
Identifiant ISTEX
6FBC23F0A26C986DE12EDB61AC1E1AEED50B65C0
Revue

Estuaries

Année de publication
1989
Présence de XML structuré
Non
Version PDF
1.3
Score qualité du texte
8.503
Sous-corpus
  • Poissons
Type de publication
Journal
ark:/67375/1BB-B30RVN3B-K
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