Nom du corpus

Corpus Systématique Animale

Titre du document

On the biology and food of small-sized fish from North and Baltic Sea areas. IV. Investigations on an eulittoral mud flat at Sylt Island

Lien vers le document
Éditeur
Springer (journals)
Langue(s) du document
Anglais
Type de document
Research-article
Nom du fichier dans la ressource
Poissons_v2b_003923, Vers_v2b_00489
Auteur(s)
  • C. Dieter Zander 1
  • Eike Hartwig 1
Affiliation(s)
  • 1) Zoologisches Institut und Zoologisches Museum, Martin-Luther-King-Platz 3, D-2000, Hamburg 13, Federal Republic of Germany
Résumé

The fish fauna of an eulittoral mud flat was investigated at Sylt Island (North Sea) with special regard to its food uptake. During the course of a year the following species were caught:Pomatoschistus microps, Anguilla anguilla (elvers),Zoarces viviparus, andGasterosteus aculeatus. Considering the potentially available food, the most abundant organisms of the benthos were harpacticoids and nematodes, whereas in the phytal layer gastropods and gammarids were dominant. The benthic biomass was found to be greatest in spring, while phytal organisms were most abundant in late summer. The greatest fish density was stated in September 1974 though onlyP. microps was present. The fish biomass was highest in spring when the elvers appeared. The main food ofP. microps was epibenthos; in the diet ofA. anguilla phytal organisms dominated over epibenthos, inG. aculeatus suprabenthic organisms were also present. The most prominent food component by biomass was gammarids in all investigated fish, whereas harpacticoids were only dominant in number. During the course of the year the biomass of ingested food yielded highest values in summer and autumn, but lowest in winter. A very great predatory activity was found in September 1974, which possibly caused a grazing effect on harpacticoids. An estimation of the turnover rate of small-sized fish in this month led to a value of 70 mg dry weight m?2 · d?1.

Catégories INIST
  • 1 - sciences appliquees, technologies et medecines
  • 2 - sciences biologiques et medicales
  • 3 - sciences biologiques fondamentales et appliquees. psychologie
  • 4 - invertebres
Catégories Scopus
  • 1 - Physical Sciences ; 2 - Earth and Planetary Sciences ; 3 - General Earth and Planetary Sciences
  • 1 - Physical Sciences ; 2 - Environmental Science ; 3 - General Environmental Science
Identifiant ISTEX
A4F1F0DCFC40F05E3A99778EAEC731CB9965AAF4
Revue

Helgoländer Meeresuntersuchungen

Année de publication
1982
Présence de XML structuré
Non
Version PDF
1.3
Score qualité du texte
9.628
Sous-corpus
  • Poissons
  • Vers
Type de publication
Journal
ark:/67375/1BB-6VX58Z6N-B
Powered by Lodex 9.3.8