Nom du corpus

Corpus Systématique Animale

Titre du document

On the reliability of the growth rings in two species of the family Characidae in the Sudan

Lien vers le document
Éditeur
Springer (journals)
Langue(s) du document
Anglais
Type de document
Research-article
Mots-clés d'auteur
  • Sudan
  • fish
  • Characidae
  • growth of rings
  • back-calculation
  • aging structure
Nom du fichier dans la ressource
Poissons_v2b_004281
Auteur(s)
  • S. A. Guma'a 1
  • M. E. Hamza
  • E. M. Suliman
Affiliation(s)
  • 1) Department of Zoology, Faculty of Science, University of Khartoum, Sudan
Résumé

The scales, opercula and vertebrae from 69 Hydrocyon forskali and 63 Alestes dentex were investigated for their reliability as aging structures. In both species the scales were unreliable due to their regenerative property, in spite of the clarity of their growth rings. Back-calculated lengths from the first growth ring laid on opercula and vertebrae resulted in values that coincided with the annual growth of the two species. In H. forskali, the mean back-calculated length from the two bones were 16.2 ± 5.9 and 16.8 ± 4.4 respectively, and for A. dentex, 11.1 ± 1.7 and 12.8 ± 1.8, respectively. Predictive equations for bone radius from fish length were written for both species. In this study, reliability was maximal between the observed and back-calculated lengths for both species (r > 0.95).

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 medicales
  • 4 - maladies metaboliques
Catégories Scopus
  • 1 - Life Sciences ; 2 - Agricultural and Biological Sciences ; 3 - Aquatic Science
Catégories WoS
  • 1 - science ; 2 - marine & freshwater biology
Identifiant ISTEX
9B250EFBB8CF35A1274CDDE4C914B88B04FF5343
Revue

Hydrobiologia

Année de publication
1984
Présence de XML structuré
Non
Version PDF
1.3
Score qualité du texte
5.8
Sous-corpus
  • Poissons
Type de publication
Journal
ark:/67375/1BB-98L5SBB9-R
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