Nom du corpus

Corpus Systématique Animale

Titre du document

Distribution and abundance of ichthyoplankton in the Manicouagan River estuary, a tributary of the lower St. Lawrence estuary

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_003359
Auteur(s)
  • Yves de Lafontaine
Affiliation(s)
  • Pêches et Océans Canada Division Océanographie Biologique, Institut Maurice Lamontagne, 850 Route de la Mer, G5H 3Z4, Mont-Joli, Québec, Canada
Résumé

The species composition and relative abundance of ichthyoplankton were investigated during summer 1986 at four stations along the salinity gradient in the Manicouagan River estuary, a tributary of the lower St. Lawrence estuary. Physical characteristics of water masses indicated the presence of a strong saline front (>10‰ per km) delineating the freshwater and marine section of the Manicouagan estuary. The estuary supports a depauperate ichthyoplankton community, including four species of pelagic fish eggs and eight species of fish larvae. Species richness increased with salinity. The ichthyoplankton fauna can be divided into two distinct groups: freshwater and marine. These two groups result initially from spawning preferences exhibited by the different species abundance of freshwater larvae was maximal at the head of the estuary and marine larvae were most abundant at the most saline station. The length frequency distribution suggests that marine larvae are not effectively retained within the estuary. The Manicouagan estuary cannot be considered as a major spawning site nor an important nursery zone for any fish found in this area.

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
E62C7DC6B726E97060AC715BAAA4710027871EBD
Revue

Estuaries

Année de publication
1990
Présence de XML structuré
Non
Version PDF
1.3
Score qualité du texte
9.008
Sous-corpus
  • Poissons
Type de publication
Journal
ark:/67375/1BB-HQX7SWBJ-C
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