Nom du corpus

Corpus Systématique Animale

Titre du document

Comparison of ageing methods and growth rates for largemouth bass, Micropterus salmoides Lacépède, from northern latitudes

Lien vers le document
Éditeur
Springer (journals)
Langue(s) du document
Anglais
Type de document
Brief-communication
Mots-clés d'auteur
  • Annuli
  • Age
  • Scales
  • Sagittae
  • Vertebrae
  • Dorsal fin spines
  • Pectoral fin rays
  • Growth
  • Oligotrophic lake
Nom du fichier dans la ressource
Poissons_v2b_004863
Auteur(s)
  • David C. Maraldo 1
  • Hugh R. MacCrimmon 1
Affiliation(s)
  • 1) Department of Zoology, University of Guelph, Guelph, Ontario, Canada
Résumé

Synopsis: Ages determined by counts of apparent annuli on scales, sagittae, vertebrae, pectoral fin ray and dorsal fin spine cross sections of largemouth bass from northern populations, which are older and slower growing fish than in the southern parts of its native range, were compared to establish the accuracy of each method. Linear regression techniques indicated strong agreement (r> 0.9) among ages assigned from the examination of scales, sagittae, and vertebrae. The pattern of growth zones on pectoral fin ray and dorsal fm spine cross sections proved too variable for accurate age determination. Limited data suggest that ages greater than 7+ assigned from scales were more likely to underestimate true ages than the other body parts used, although none of these methods gave satisfactory results. Examination of scales from recovered tagged fish, and the similarity between back-calculated lengths of fish through age 7+ to annulus I and observed lengths of juvenile largemouth bass near the end of their first growing season, support the validity of ages determined from scales. Despite a very limited amount of habitat suitable for largemouth bass and severe climatic conditions, growth of this species in Tadenac Lake was similar to growth in other waters north of the Great Lakes. Differences in physical characteristics among these waters does not appear to influence growth rates of largemouth bass, but probably affects production and biomass.

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
BFFB258AB5E454026309C95FAE336444FB79EAE1
Revue

Environmental Biology of Fishes

Année de publication
1979
Présence de XML structuré
Non
Version PDF
1.3
Score qualité du texte
8.023
Sous-corpus
  • Poissons
Type de publication
Journal
ark:/67375/1BB-1VMWC7WR-G
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