Annual variation in abundance of <i>Saggita crassa</i> and its relationship with environment conditions around the Zhangzi Island, Northern Yellow Sea

Yin Jiehui; Zhang Guangtao; Li Chaolun; Wang Shiwei; Wan Aiyong

doi:10.3969/j.issn.0253-4193.2016.12.009

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Yin Jiehui, Zhang Guangtao, Li Chaolun, Wang Shiwei, Wan Aiyong. Annual variation in abundance of Saggita crassa and its relationship with environment conditions around the Zhangzi Island, Northern Yellow Sea[J]. Haiyang Xuebao, 2016, 38(12): 86-94. doi: 10.3969/j.issn.0253-4193.2016.12.009

Citation:

Yin Jiehui, Zhang Guangtao, Li Chaolun, Wang Shiwei, Wan Aiyong. Annual variation in abundance of Saggita crassa and its relationship with environment conditions around the Zhangzi Island, Northern Yellow Sea[J]. Haiyang Xuebao, 2016, 38(12): 86-94. doi: 10.3969/j.issn.0253-4193.2016.12.009

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Annual variation in abundance of Saggita crassa and its relationship with environment conditions around the Zhangzi Island, Northern Yellow Sea

doi: 10.3969/j.issn.0253-4193.2016.12.009

1.
Ocean College, Yantai University, Yantai 264005, China
2.
Jiaozhou Bay Ecosystem Research Station, Qingdao 266071, China
3.
Key Laboratory of Marine Ecology and Environmental Sciences, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China

Received Date: 2016-04-16

Abstract

Abstract

Saggita crassa is one of the most important dominant zooplankton species in temperate China seas. Based on samples collected during monthly investigation (July 2009 to June 2010) around the Zhanagzi Island, we demonstrated annual variation of abundance and its correlation with environmental conditions. In our study, its abundance averaged in 22.6 ind/m³on annual cycle, with monthly maximum in December (47.5 ind/m³) and minimum (7.8 ind/m³) in August. Spatially, the abundance was higher at stations near the island comparing to those in open waters in all months but August. The difference was statistically significant in October and February (P<0.05). As a carnivore, temporal and spatial distribution of S. crassa was influenced by not only water temperature and salinity but also that of prey populations (mainly copepods). Thus, we propose that different annual patterns of S. crassa over various geographical regions were impacted by that of prey communities.
- Saggita crassa,
- abundance,
- distribution,
- environment factors,
- Zhangzi Island

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References(22)

References

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