The seasonal environmental factors affecting copepod community in the Anma Islands of Yeonggwang, Yellow Sea
Jeong, Y.S.; Lee, S.Y.; Choo, S.; Yoon, Y.-H.; Cho, H.; Kim, D.-J.; Soh, H.Y. (2023). The seasonal environmental factors affecting copepod community in the Anma Islands of Yeonggwang, Yellow Sea. Ocean and Polar Research 45(2): 43-55. https://dx.doi.org/10.4217/OPR.2023004
In: Ocean and Polar Research. Korean Institute of Ocean Science and Technology: Busan. ISSN 1598-141X; e-ISSN 2234-7313, meer
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| Trefwoorden |
Calanus sinicus Brodsky, 1965 [WoRMS]
Marien/Kust |
| Author keywords |
copepod community; seasonal occurrence pattern; seasonal environmental drivers; Calanus sinicus; Anma Island of Yeonggwang |
| Auteurs | | Top |
- Jeong, Y.S.
- Lee, S.Y.
- Choo, S.
- Yoon, Y.-H.
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- Cho, H.
- Kim, D.-J.
- Soh, H.Y.
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| Abstract |
This study was conducted to understand the seasonal patterns and variation of the copepod community in the Anma Islands of Yeonggwang, Yellow Sea, with a focus on seasonal surveys to assess the factors affecting their occurrence. Throughout the survey period, Acartia hongi, Paracalanus parvus s. l., and Ditrichocorycaeus affinis were dominant species, while Acartia ohtsukai, Acartia pacifica, Bestiolina coreana, Centropages abdominalis, Labidocera rotunda, Paracalanus sp., Tortanus derjugini, Tortanus forcipatus occurred differently by season and station. As a results of cluster analysis, the copepod communities were distinguished into three distinct groups: spring-winter, summer, and autumn. The results of this study showed that the occurrence patterns of copepod species can vary depending on environmental conditions (topographic, distance from the inshore, etc.), and their spatial occurrence patterns between seasons were controlled by water temperature and prey conditions. One of the physical mechanisms that can affect the distribution of zooplankton in the Yellow Sea is the behavior of the Yellow Sea Bottom Cold Water (YSBCW), which shows remarkable seasonal fluctuations. More detailed further studies are needed for clear grounds for mainly why to many Calanus sinicus in the central region of the Yellow Sea are seasonally moving to the inshore, what strategies to seasonally maintain the population, and support the possibilities of complex factors. |
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