Titre du document / Document title
Widespread and persistent increase of Ctenophora in the continental shelf ecosystem off NE USA
Auteur(s) / Author(s)
LINK Jason S.
(1) ;
FORD Michael D.
(2) ;
Affiliation(s) du ou des auteurs / Author(s) Affiliation(s)
(1) Food Web Dynamics Program, Northeast Fisheries Science Center, 166 Water Street, Woods Hole, Massachusetts 02543, ETATS-UNIS
(2) OAA/NESDIS/National Oceanographic Data Center, SSMCIII E/OC1 Room 4716, 1315 East-West Highway, Silver Spring, Maryland 20707, ETATS-UNIS
Résumé / Abstract
Changes in the prey composition of the stomachs of opportunistic-feeding fishes can provide information on various ocean ecosystem dynamics. From 1981 to 2000, stomach samples of the spiny dogfish Squalus acanthias showed a major increase in the overall occurrence (and hence implied abundance) of Ctenophora, gelatinous zooplankton that range throughout the ecosystem. There have been a few such major increases in ctenophores in enclosed (e.g. Caspian Sea) and semienclosed (e.g. Mediterranean Sea) ecosystems, with concomitant significant effects on those ecosystems and the productivity of their fishery resources. We show the first such increases in ctenophores in an open ecosystem, persistent over 2 decades, with implications for the productivity of the fishery resources in any large marine ecosystem.
Revue / Journal Title
Marine ecology. Progress series
ISSN 0171-8630
Source / Source
2006, vol. 320, pp. 153-159 [7 page(s) (article)] (36 ref.)
Langue / Language
Anglais
Editeur / Publisher
Inter-Research, Oldendorf, ALLEMAGNE
(1979)
(Revue)
Mots-clés anglais / English Keywords
Invertebrata ;
Coelenterata ;
America ;
North America ;
Ctenaria ;
Ecological abundance ;
Perturbation ;
Marine environment ;
Zooplankton ;
United States ;
Ecosystem ;
Continental shelf ;
Mots-clés français / French Keywords
Invertebrata ;
Coelenterata ;
Amérique ;
Amérique du Nord ;
Ctenaria ;
Abondance écologique ;
Perturbation ;
Milieu marin ;
Zooplancton ;
Etats Unis ;
Ecosystème ;
Plateforme continentale ;
Mots-clés espagnols / Spanish Keywords
Invertebrata ;
Coelenterata ;
America ;
America del norte ;
Ctenaria ;
Abundancia ecológica ;
Perturbación ;
Medio marino ;
Zooplancton ;
Estados Unidos ;
Ecosistema ;
Plataforma continental ;
Mots-clés d'auteur / Author Keywords
Gelatinous zooplankton ;
Large marine ecosystem ;
Global-scale perturbation ;
Ctenophore abundance ;
Spiny dogfish ;
Regime shift ;
Localisation / Location
INIST-CNRS, Cote INIST : 18208, 35400014292081.0140
Nº notice refdoc (ud4) : 18128107
