Nom du corpus

Corpus Systématique Animale

Titre du document

Distribution, biology and hybridization of Scaphirhynchus albus and S. platorynchus in the Missouri and Mississippi rivers

Lien vers le document
Springer (journals)
Langue(s) du document
Type de document
Mots-clés d'auteur
  • Environmental effects
  • Food
  • Growth
  • Morphometric Comparisons
  • Status
  • Threats to survival
Nom du fichier dans la ressource
Insectes_v2b_00012, Poissons_v2b_000034
  • Douglas M. Carlson 1
  • William L. Pflieger 1
  • Linden Trial 1
  • Pamela S. Haverland 1
  • 1) Missouri Department of Conservation, 1110 College Avenue, 65201, Columbia, MO, U.S.A.

Synopsis: Scaphirhynchus albus and S. platorynchus were studied in Missouri during 1978–1979 to assess their distribution and abundance, to obtain information on their life histories, and to identify existing or potential threats to their survival. S. platorynchus was collected in substantial numbers (4355 specimens) at all 12 sampling stations in the Missouri and Mississippi rivers, while only 11 S. albus were captured from 6 stations. Twelve specimens identified in the field as hybrids between the two species were captured from 4 stations. Morphometric and meristic comparisons of presumed hybrids with the parent species, using cluster and principal components analyses, demonstrated intermediacy of most specimens identified in the field as hybrids. Aquatic insects comprised most of the diet of S. platorynchus and S. albus, but S. albus and the hybrids had consumed considerable quantities of fish. S. albus grew more rapidly than S. platorynchus, while the growth of hybrids was intermediate. Hybridization appears to be a recent phenomenon, resulting from man-caused changes in the big-river environment. Hybridization may be a threat to survival of S. albus in the study streams.

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 - vertebres: reproduction
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
  • Insectes
  • Poissons
Type de publication
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