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Alimentación de Palaemon adspersus (Rathke, 1837) y Palaemon serratus (Pennant, 1777) (Decapoda: natantia) en la ría de Vigo (N.O. España)

Authors: Figueras Monfort, Antonio;

Alimentación de Palaemon adspersus (Rathke, 1837) y Palaemon serratus (Pennant, 1777) (Decapoda: natantia) en la ría de Vigo (N.O. España)

Abstract

[FR] Les variations du contenu stomacal de 2 espèces de Palaemonidae sont étudiées pondant une année. Les femelles présentent des estomacs plus remplis que les mâles bien que, en fin de maturation ovarienne, leurs estomacs soient pratiquement vides. Les proies dominantes pour les deux sexes pendant toute l'année sont les Amphipodes. A celles-ci s'ajoutent des Polychètes, des Mollusques et des larves d'Insectes : on trouve également dans les estomacs des fragments d'algues, du sable et un pourcentage non négligeable (25 p. 100) de matière organique non identifiée. L'importance relative des différentes proies est très semblable chez les deux espèces étudiées. Toutefois, leur aire de distribution étant différente, aucune compétition trophique n'est possible si ce n'est aux frontières de leurs habitats respectifs.

[EN] Variation in fullness of stomachs of two Palacmonid species was studied throughout the year. Stomachs of females were more full than those of males but the stomachs of females were empty as ovaries get matured. Amphipods were the major food item in stomach of both sexes of both species throughout the year. Other components of stomach content were: Polycnaetes, Molluscs, Insect larvae, algae sand and un-identified organic matter. The relative importance of each prey was very similar in both species. As the distribution area of the two studied species was different, a trophic compétition could not occur re except on the boundaries of their specific habitat.

14 páginas, 2 tablas, 4 figuras

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
0
Average
Average
Average
Green