Nom du corpus

Corpus Systématique Animale

Titre du document

Recent increase of filamentous algae in shallow Swedish bays: Effects on the community structure of epibenthic fauna and fish

Lien vers le document
Éditeur
Springer (journals)
Langue(s) du document
Anglais
Type de document
Research-article
Mots-clés d'auteur
  • filamentous algae
  • shallow nursery
  • coastal eutrophication
  • epibenthic fauna
  • coastal fish
  • Skagerrak
Nom du fichier dans la ressource
Poissons_v2b_005441
Auteur(s)
  • L. Pihl 1
  • I. Isaksson 1
  • H. Wennhage 1
  • P. -O. Moksnes 1
Affiliation(s)
  • 1) Kristineberg Marine Research Station, University of Göteborg, 45034, Fiskebäckskil, Sweden
Résumé

A summary is presented of estimates of distribution and growth of filamentous algae and its effect on the structure and functioning of epibenthic fauna and fish communities in shallow bays on the Swedish west coast. As a consequence of coastal eutrophication vegetation cover has gradually increased during the last decade, and during 1990's most bays in the Skagerrak-Kattegat area were variously covered with filamentous algae during spring and summer (May–July). In some areas filamentous algae (mainlyCladophora andEnteromorpha) completely covered the bottom. In field studies it was demonstrated that increased cover and dominance of filamentous algae result in structural changes of the epibenthic fauna community. Field studies showed that species richness and biomass of epibenthic fauna increased in a sandy bay with a moderate increase (30 to 50%) of filamentous algae cover. At higher cover (90%), biomass of epibenthic fauna was reduced, however, to the same level as for the sandy habitat, although the dominant epibenthic species were different. Heavy growth of epiphytic filamentous algae on eelgrass resulted in reduced biomass and a shift in the species composition of the epibenthic fauna community. Fish assemblage structure was also related to changes in vegetation. In eelgrass beds, fish species numbers were reduced with increasing cover of epiphytic filamentous algae, and at rocky bottoms with kelp algae (dominated byFucus), fish biomass decreased with increasing cover of attached filamentous algae. Further, foraging efficiency of juvenile cod and settling success of plaice were reduced as a response to increasing dominance of filamentous algae.

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 - General Agricultural and Biological Sciences
Identifiant ISTEX
799C886905C8DD920A18479F3CB49C18C765DF51
Revue

Netherland Journal of Aquatic Ecology

Année de publication
1995
Présence de XML structuré
Non
Version PDF
1.3
Score qualité du texte
9.988
Sous-corpus
  • Poissons
Type de publication
Journal
ark:/67375/1BB-3QJS8GVC-H
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