Nom du corpus

Corpus Systématique Animale

Titre du document

Strip counts as a means of determining densities and habitat utilization patterns in lake fishes

Lien vers le document
Éditeur
Springer (journals)
Langue(s) du document
Anglais
Type de document
Research-article
Mots-clés d'auteur
  • Methods
  • Ecology
  • Fish abundance
  • Diver counts
  • Lake fish ecology
Nom du fichier dans la ressource
Poissons_v2b_004102
Auteur(s)
  • Allen Keast 1
  • Jennifer Harker 1
Affiliation(s)
  • 1) Department of Biology, Queen's University, Kingston, Ontario, Canada
Résumé

Synopsis: The strip count method of determining fish densities was investigated for a small lake in a series of inshore sites that differed in their physical and biological characteristics and in the communities of fishes present. Overall total numbers of fish, number of species, ratio of commonest to total species, and 2nd commonest to total species, were investigated. Counts were made during time of the feeding peaks. Repeatability of the method was tested by series of five traverses at 10-minute intervals and was good both for total numbers of fish and ratio of commonest species to total fish. However, it varied with the habitat type, being excellent for small semi-isolated weedy sites, good for gravel-bottom sites, but only fair in open sandy bays where the strip was laid in the middle of an extensive area of homogeneous habitat. Series of comparative counts made (a) between morning and afternoon on the same day and, (b) between successive mornings, to determine how constant populations were between these time intervals, proved to be within the same general range but were significantly different by the Mann Whitney U test at the ? = 0.05 level. In small lakes the strip count method proves to have considerable potential in the study of habitat specializations, taxocene structures, and relative abundances.

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 - 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
340F3CDB43071EEA29A00F1D6EAB84C86A949C26
Revue

Environmental Biology of Fishes

Année de publication
1977
Présence de XML structuré
Non
Version PDF
1.3
Score qualité du texte
8.449
Sous-corpus
  • Poissons
Type de publication
Journal
ark:/67375/1BB-40P62Q5Z-B
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