Nom du corpus

Corpus Systématique Animale

Titre du document

Feeding ecology of Oreochromis niloticus (Linnaeus) & Tilapia Zillii (Gervias) in a Nile canal

Lien vers le document
Éditeur
Springer (journals)
Langue(s) du document
Anglais
Type de document
Research-article
Nom du fichier dans la ressource
Insectes_v2b_01120, Poissons_v2b_002993
Auteur(s)
  • Elsayed A. Khallaf 1
  • A. A. Alne-na-ei 1
Affiliation(s)
  • 1) Zoology Department, Faculty of Science, Almenofeya University, Shebeen Alkoom, Egypt
Résumé

Fish stomachs, 1149 for Tilapia zillii and 1698 for Oreochromis niloticus, were collected from April 1984 till April 1985 from a Nile canal in the Egyptian delta. Both species showed a significant overlap of diet (Schoener's index) among individuals ranging from 12 to 17.9 cm standard length. Outside this range differences in the importance of food of animal origin occurred. Macrophytes were the main food of O. niloticus and aquatic insects of the food of T. zillii. This initial diet overlap may have contributed to irregularity in the increase of full stomachs with increasing length, and to a decline of the stomach index (SI = stomach weight × 100/fish weight) with increase in length in O. niloticus. The stomach of either species correlated significantly with water temperature, but with daily photoperiod in O. niloticus only.

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 biologiques fondamentales et appliquees. psychologie
  • 4 - psychologie. psychophysiologie
Catégories Scopus
  • 1 - Life Sciences ; 2 - Agricultural and Biological Sciences ; 3 - Aquatic Science
Catégories WoS
  • 1 - science ; 2 - marine & freshwater biology
Identifiant ISTEX
F618985E86FBDD15D29E2A8C93433C8FF97859C1
Revue

Hydrobiologia

Année de publication
1987
Présence de XML structuré
Non
Version PDF
1.3
Score qualité du texte
6.379
Sous-corpus
  • Insectes
  • Poissons
Type de publication
Journal
ark:/67375/1BB-DRLXK6TT-0
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