Mesozooplankton distribution patterns and grazing impacts of copepods and Euphausia crystallorophias in the Amundsen Sea, West Antarctica, during austral summer
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- Mesozooplankton distribution patterns and grazing impacts of copepods and Euphausia crystallorophias in the Amundsen Sea, West Antarctica, during austral summer
- Other Titles
- 남극 아문젠 해역의 중형동물플랑크톤 분포와 우점 요각류 및 Euphausia crystallorophias의 섭식압
- Ha, Ho Kyung
Choi, Keun H.
Lee, Doo Byoul
Shin, Hyoung Chul
Lee, Sang H.
Lee, Sang Heon
Yang, Eun Jin
- Biodiversity & Conservation; Environmental Sciences & Ecology
- Amundsen Sea; Copepods; Euphausia crystallorophias; Grazing impacts; Polynya
- Issue Date
- Ha, Ho Kyung, et al. 2013. "Mesozooplankton distribution patterns and grazing impacts of copepods and Euphausia crystallorophias in the Amundsen Sea, West Antarctica, during austral summer". POLAR BIOLOGY, 36(8): 1215-1230.
- The rapid melting of glaciers as well as the loss of sea ice in the Amundsen Sea makes it an ideal environmental setting for the investigation of the impacts of climate change in the Antarctic on the distribution and production of mesozooplankton. We examined the latitudinal distribution of mesozooplankton and their grazing impacts on phytoplankton in the Amundsen Sea during the early austral summer from December 27, 2010 to January 13, 2011. Mesozooplankton followed a latitudinal distribution in relation to hydrographic and environmental features, with copepods dominating in the oceanic area and euphausiids dominating in the polynya. Greater Euphausia crystallorophias biomass in the polynya was associated with lower salinity and higher food concentration (chlorophyll a, choanoflagellates, and heterotrophic dinoflagellates). The grazing impact of three copepods (Rhincalanus gigas, Calanoides acutus, and Metridia gerlachei) on phytoplankton was low, with the consumption of 3 % of phytoplankton standing stock and about 4 % of daily primary production. Estimated daily carbon rations for each of the three copepods were also relatively low (
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