Feeding habits of the cuttlefish Sepia officinalis during its life cycle in the Sado estuary (Portugal)
作者： Ana Neves , Vera Sequeira , Ana Rita Vieira , Rafaela Paiva , Leonel Serrano Gordo
DOI: 10.1007/S10750-009-9976-5
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摘要: The importance of cephalopods in marine ecosystems is well recognized as they serve important predators and prey many food chains. During a 1-year period, cuttlefish were monthly sampled five areas throughout the Sado estuary, stomachs 445 individuals examined. Significant changes diet according to their life stage revealed, but similar habits presented by males females. Juvenile (the smaller ones with no visible distinct gonads) preyed mainly upon small crustaceans, while immature (maturity stages I II) had most diverse brachyurans major group. mature III IV) showed clear preference for larger crabs fishes. Although are known opportunistic feeding behaviour, some length behaviour could be perceived during this study. Seasonal differences mostly due variation maturity year.
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