Nom du corpus

Corpus Systématique Animale

Titre du document

Improving multispecies rocky reef fish censuses by counting different groups of species using different procedures

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Éditeur
Springer (journals)
Langue(s) du document
Anglais
Type de document
Research-article
Mots-clés d'auteur
  • Temperate reef fish
  • Conspicuous and inconspicuous species
  • Observer speed
  • Gobiesocidae
  • Serranidae
  • Pomacentridae
  • Pempheridae
Nom du fichier dans la ressource
Poissons_v2b_003509
Auteur(s)
  • Marcus P. Lincoln Smith
Affiliation(s)
  • School of Biological Sciences, University of Sydney, 2006, Sydney, Australia
Résumé

Synopsis: A number of factors can influence the accuracy and precision of underwater visual transect techniques. Among these are observer swimming speed and, during multispecies surveys, the effect of counting all fishes on estimates of particular species. This paper examines the effect of these factors on population estimates of inconspicuous fishes (defined as Type 1) in a temperate reef fish assemblage near Sydney, Australia. Counting Type 1 fishes with all others yielded significantly lower estimates of species richness and abundance than when counted alone. This suggests that multispecies surveys should be split into 2 or more counts, using a census procedure that is appropriate to the group of species cencused. Further, the effect of counting all other fishes on estimates of Type 1 fishes varied according to the relative abundance of the former: their effect was lowest when abundance of other fishes was lowest. There was a negative relationship between observer speed and estimated abundance for Type 1 fishes. Survey precision of Type 1 fishes was generally improved by surveying at slower observer speeds.

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
2B1EE4DD4CC35FB27536713307452B15EDCC1359
Revue

Environmental Biology of Fishes

Année de publication
1989
Présence de XML structuré
Non
Version PDF
1.3
Score qualité du texte
7.869
Sous-corpus
  • Poissons
Type de publication
Journal
ark:/67375/1BB-2975GLR3-N
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