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Zooplankton Community Structure and Copepod Production in the Seomjin River Estuary  

Youn, Seok-Hyun (National Fisheries Research and Development Institute)
Oh, Ghang-Sok (National Fisheries Research and Development Institute)
Chung, Mi-Hee (National Fisheries Research and Development Institute)
Publication Information
Journal of the Korean Society of Marine Environment & Safety / v.16, no.4, 2010 , pp. 369-379 More about this Journal
Abstract
Zooplankton community structure and copepod production in Seomjin River estuary were investigated at 10 stations along the salinity gradients from May 2009 to February 2010. Total zooplankton taxa were identified to be 31 in the study area and seasonal average abundance of zooplankton was $4,151\;ind.{\cdot}m^{-3}$ during the study period. Zooplankton community was mainly composed of coastal species in dry season. However, brackish species dominated in upper or middle part of this estuary in flood season. This study showed that the growth rates of Acartia spp. and Paracalanus parvus s.l. measured from field experiments were regulated by the variations of Hater temperature and salinity; The annual copepod production estimated by dominant copepod species was $3.49\;g\;C{\cdot}m^{-2}yr^{-1}$, and the relatively high production value could be explained by the high phytoplankton standing stocks and the mass occurrence of coastal and brackish species with relation to various salinity gradients in Seomjin River estuary.
Keywords
Zooplankton; Estuary; Salinity; Copepod production; Growth rate;
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Times Cited By KSCI : 5  (Citation Analysis)
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