Nom du corpus

Corpus Systématique Animale

Titre du document

Trophic ecology of the dominant fishes in Elkhorn Slough, California, 1974–1980

Lien vers le document
Éditeur
Springer (journals)
Langue(s) du document
Anglais
Type de document
Research-article
Nom du fichier dans la ressource
Arthropodes_v2b_00521, Mollusques_v2b_00116
Auteur(s)
  • James P. Barry 1
  • Mary M. Yoklavich 1
  • Gregor M. Cailliet 1
  • David A. Ambrose 1
  • Brooke S. Antrim 1
Affiliation(s)
  • 1) Moss Landing Marine Laboratories, P.O. Box 450, 95039, Moss Landing, California
Résumé

Food habits of the dominant fishes collected from 1974 to 1980 at eight locations in Elkhorn Slough, California, and the adjacent ocean were investigated. Epifaunal crustacea was the major prey group identified from stomach contents of more than 2,000 fishes, followed by epifaunal and infaunal worms, and molluscs. Overall, 18 fish species consumed 263 different prey taxa, ranging from 10 taxa to 125 taxa per fish species and including 99 crustacean, 56 polychaete, and 39 molluscan taxa. Mean prey richness was greatest at stations near the ocean and lowest at inshore stations. Detailed dietary data for all prey taxa were summarized as trophic spectra for each fish species. Trophic spectra represented functional groups of prey and were used for comparisons of dietary similarity. Cluster analyses, based on trophic spectra, resulted in four feeding guilds of fishes. Of 18 fish species, seven (Amphistichus argenteus, Leptocottus armatus, Embiotoca jacksoni, Clevelandia ios, Gillichthys mirabilis, Cymatogaster aggregata, andCitharichthys stimaeus) fed principally on epifaunal crustacea. Four species (Pleuronectes vetulus, Platichthys stellatus, Phanerodon furcatus, andMyliobatus californica) consumed mostly molluscs and infaunal worms. Two species (Psettichthys melanostictus andTriakis semifasciata) fed on mobile crustacea, and five species (Hyperprosopon anale, Engraulis mordax, Clupea pallasi, Atherinopsis californiensis, andAtherinops affinis) fed largely on zooplankton and plant material. Our results suggest that high food availability enhances the nursery function of imshore habitats, and emphasize the importance of invertebrate prey populations and the indirect linkage of plant production to the ichthyofaunal assemblarly marine immigrant species that are likely ‘estuarine dependent’.

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 - ecologie animale, vegetale et microbienne
Catégories Scopus
  • 1 - Physical Sciences ; 2 - Environmental Science ; 3 - General Environmental Science
  • 1 - Life Sciences ; 2 - Agricultural and Biological Sciences ; 3 - Aquatic Science
  • 1 - Physical Sciences ; 2 - Environmental Science ; 3 - Environmental Chemistry
Identifiant ISTEX
D05D660A218BB12541E487225E456CA31CA6F8A8
Revue

Estuaries

Année de publication
1996
Présence de XML structuré
Non
Version PDF
1.3
Score qualité du texte
9.976
Sous-corpus
  • Arthropodes
  • Mollusques
Type de publication
Journal
ark:/67375/1BB-8FHW7W44-Q
Powered by Lodex 9.3.8