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Protozooplankton Community Structure; Microbial Food-Web; Southern-Ocean; Phytoplankton Growth; Ciliate Microzooplankton; Heterotrophic Protists; Bacterial Production; Atlantic Sector; Coastal Waters; Austral Summer
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Full-Text Articles in Life Sciences
Microzooplankton Grazing Along The Western Antarctic Peninsula, Lm Garzio, Deborah K. Steinberg, M Erickson, Hw Ducklow
Microzooplankton Grazing Along The Western Antarctic Peninsula, Lm Garzio, Deborah K. Steinberg, M Erickson, Hw Ducklow
VIMS Articles
The significance of microzooplankton as grazers in pelagic ecosystems has been established, yet relatively few studies of microzooplankton grazing, compared to that of macrozooplankton, have been conducted in the Southern Ocean. We report phytoplankton and bacterial growth and grazing mortality rates along the Western Antarctic Peninsula (WAP), a region of rapid climate change. Growth and grazing rates were determined by dilution experiments at select stations along the WAP in January of 2009 to 2011 and in the nearshore waters near Palmer Station in February and March 2011. Microzooplankton exerted higher grazing pressure on bacteria compared to phytoplankton along the WAP …