Effects of terrestrial inputs and seawater intrusion on zooplankton community structure in Daya Bay, South China Sea.
Effects of terrestrial inputs and seawater intrusion on zooplankton community structure in Daya Bay, South China Sea.
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DOI：
10.1016/j.marpolbul.2021.112331
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发表时间：
2021-04
影响因子：
5.8
通讯作者：
Chenhui Xiang;Z. Ke;Kaizhi Li;Jiaxing Liu;Linbin Zhou;Xiping Lian;Yehui Tan
中科院分区：
文献类型：
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作者：
Chenhui Xiang;Z. Ke;Kaizhi Li;Jiaxing Liu;Linbin Zhou;Xiping Lian;Yehui Tan
大亚湾是一个富营养化的海岸带，其动态物理化学条件受到陆源输入和海水入侵的影响。浮游动物是能量传递和渔业资源的重要营养中介。本研究对2015年夏季和冬季大亚湾浮游动物的分布和组成进行了分析。浮游动物多样性最低，以小型桡足类（Acartiaspp.和拟哲水蚤属（Paracalanusspp.）和凝胶状Oikopleaspp.在陆地输入下，丹澳河口和澳头沙洲的沉积物中，浮游动物多样性最高的是受咸海水入侵影响的湾口，优势种（EuchaetaconcinnaandSubbeucalanussubcrassus）在冬季入侵湾顶。河口优势种由鸟喙Penilia avirostristi向Acartiaspp.与历史研究相比较，说明人类活动对优势种演替的影响。
Daya Bay is a eutrophic coastal region with dynamic physico-chemical conditions influenced by terrestrial inputs and seawater intrusion. Zooplankton is a crucial trophic intermediary for energy transfer and fishery resources. In this study, we assessed the distribution and composition of zooplankton in Daya Bay during summer and winter of 2015. We found that zooplankton diversity was the lowest and dominated by small copepods (Acartiaspp. andParacalanusspp.) and gelatinousOikopleuraspp. under terrestrial inputs in the Dan'ao River estuary and Aotou barbour. The highest zooplankton diversity was observed at the bay mouth that influenced by salty intruded seawater, and the dominant oceanic species (such asEuchaeta concinnaandSubeucalanus subcrassusinvaded into the top of the bay in winter. The dominant species in the estuary shift fromPenilia avirostristoAcartiaspp. compared with historical researches, indicating the effect of human activities on the succession of dominant species.