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Copepod Grazing Influences Diatom Aggregation and Particle Dynamics
Provedor de dados: 5
Autores: Toullec, Jordan; Vincent, Dorothée; Frohn, Laura; Miner, Philippe; Le Goff, Manon; Devesa, Jérémy; Moriceau, Brivaela.
In marine ecosystems, carbon export is driven by particle flux which is modulated by aggregation, remineralization, and grazing processes. Zooplankton contribute to the sinking flux through the egestion of fast sinking fecal pellets but may also attenuate the flux by tearing apart phytoplankton aggregates into small pieces through swimming activity or direct ingestion. Freely suspended cells, artificial monospecific aggregates from two different diatom species (Chaetoceros neogracile and Skeletonema marinoi) and natural aggregates of Melosira sp. were independently incubated with five different copepod species (Acartia clausi, Temora longicornis, Calanus helgolandicus, Euterpina acutifrons, and Calanus hyperboreus). During the grazing experiments initiated...
Tipo: Text
Palavras-chave: Diatom aggregate; Grazing experiment; Copepod; Sinking velocity; Particle dynamics.
Ano: 2019
URL: https://archimer.ifremer.fr/doc/00594/70605/68799.pdf