Feeding behaviour of Black Sea bottom fishes: Did it change over time?
Identifieur interne : 000A28 ( Main/Merge ); précédent : 000A27; suivant : 000A29Feeding behaviour of Black Sea bottom fishes: Did it change over time?
Auteurs : Daniela Banaru [France, Roumanie] ; Mireille Harmelin-Vivien [France]Source :
- Acta oecologica : (Montrouge) [ 1146-609X ] ; 2009.
Descripteurs français
- Pascal (Inist)
- Wicri :
- topic : Mer Noire, Milieu marin.
English descriptors
- KwdEn :
Abstract
This study was designed to improve knowledge in feeding behaviour of the round goby (Apollonia melanostomus (Pallas, 1814)), the red mullet (Mullus barbatus ponticus Essipov, 1927), the whiting (Merlangius merlangus (Linnaeus, 1758)), the flounder (Platichthys flesus (Linnaeus, 1758)), the sole (Solea solea (Linnaeus, 1758)), the turbot (Psetta maeotica (Pallas, 1814)) and the starry sturgeon (Acipenser stellatus Pallas,1771 ) from the north-western Black Sea. Gut content coupled with stable isotope analysis allowed describing food web variations according to species, in two seasons and at two areas located seawards the Danube River. Present results showed that most fishes have likely changed their feeding behaviour compared to past studies from the same area. Trophic niches were reduced and dietary overlap was common, as different fish species consumed the same dominant prey types. Fishes probably adapted their feeding behaviour to the increasingly low biodiversity of the Black Sea communities.
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Pascal:10-0009470Le document en format XML
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<front><div type="abstract" xml:lang="en">This study was designed to improve knowledge in feeding behaviour of the round goby (Apollonia melanostomus (Pallas, 1814)), the red mullet (Mullus barbatus ponticus Essipov, 1927), the whiting (Merlangius merlangus (Linnaeus, 1758)), the flounder (Platichthys flesus (Linnaeus, 1758)), the sole (Solea solea (Linnaeus, 1758)), the turbot (Psetta maeotica (Pallas, 1814)) and the starry sturgeon (Acipenser stellatus Pallas,1771 ) from the north-western Black Sea. Gut content coupled with stable isotope analysis allowed describing food web variations according to species, in two seasons and at two areas located seawards the Danube River. Present results showed that most fishes have likely changed their feeding behaviour compared to past studies from the same area. Trophic niches were reduced and dietary overlap was common, as different fish species consumed the same dominant prey types. Fishes probably adapted their feeding behaviour to the increasingly low biodiversity of the Black Sea communities.</div>
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