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学科主题: Zoology
题名: Patterns of Zooplankton Distribution along the Marine, Estuarine, and Riverine Portions of the Danshuei Ecosystem in Northern Taiwan
作者: Hwang, JS ; Kumar, R ; Hsieh, CW ; Kuo, AY ; Souissi, S ; Hsu, MH ; Wu, JT ; Liu, WC ; Wang, CF ; Chen, QC
通讯作者: Jshwang@mail.ntou.edu.tw
关键词: Zooplankton distribution ; Marine copepods ; Estuarine copepods ; Taiwan
刊名: ZOOLOGICAL STUDIES
发表日期: 2010
卷: 49, 期:3, 页:335-352
收录类别: sci
部门归属: [Hwang, Jiang-Shiou; Hsieh, Chih-Wei] Natl Taiwan Ocean Univ, Inst Marine Biol, Chilung 202, Taiwan; [Kumar, Ram] Univ Delhi, Acharaya Narendra Dev Coll, Lab Ecosyst Res, New Delhi 110019, India; [Kuo, Albert Y.; Wang, Chi-Fang] Natl Taiwan Univ, Natl Ctr Ocean Res, Taipei 106, Taiwan; [Souissi, Sami] Univ Sci & Technol Lille, Stn Marine Wimereux, F-62930 Wimereux, France; [Hsu, Ming-Hsi] Natl Taiwan Univ, Inst Bioenvironm Syst Engn, Taipei 106, Taiwan; [Wu, Jiunn-Tzong] Acad Sinica, Biodivers Res Ctr, Taipei 115, Taiwan; [Liu, Wen-Cheng] Natl United Univ, Dept Civil & Disaster Prevent Engn, Miaoli 36003, Taiwan; [Chen, Qing-Chao] Acad Sci China, S China Sea Inst Oceanol, Guangzhou 510275, Guangdong, Peoples R China
项目归属: LMB
摘要: Jiang-Shiou Hwang, Ram Kumar, Chih-Wei Hsieh, Albert Y. Kuo, Sami Souissi, Ming-Hsi Hsu, Jiunn-Tzong Wu, Wen-Cheng Liu, Chi-Fang Wang, and Qing-Chao Chen (2010) Patterns of zooplankton distribution along the marine, estuarine, and riverine portions of the Danshuei ecosystem in northern Taiwan. Zoological Studies 49(3): 335-352. The Danshuei River embouchure is the largest estuarine ecosystem in northern Taiwan. The interacting effects of wastewater discharge from Taipei City and Taipei County into the river and seawater intrusion are the main determinants of the community composition, distribution, and abundance of zooplankton in this estuarine ecosystem. In the present study, we analyzed the abundance, distribution, and diversity of zooplankton, synoptically collected at 25 (19 marine and 6 estuarine) stations in this ecosystem. In total, 28 zooplankton groups were identified, including the top 3 most abundant groups: Calanoid copepods, larval stages, and Noctilucales. Among copepods, 46 species were identified from the estuarine stretch, whereas during the same period, 86 species of copepods were recorded in waters offshore of the estuary mouth, which is the boundary of the East China Sea and northeastern tip of the Taiwan Strait. Mesozooplankton abundances and distributions were highly variable among stations, indicating a highly fluctuating ecosystem. Zooplankton abundances were not correlated with chlorophyll a levels. Copepod diversity but not abundance showed a significant positive correlation with salinity (r = 0.764). The recorded salinity levels and zooplankton species compositions suggest that seawater intrusion up to station 3 of our study acts as a major driving force for zooplankton distribution and diversity in the Danshuei Estuary. Hierarchical classification revealed higher interannual variability in the occurrence of copepods species; at the 1st hierarchical level, samples collected in Oct. 2001 at stations 2, 3, and 4 were completely separated from other samples. Among these groups, the upstream station 4 was exclusively represented by the euryhaline estuarine calanoid copepod, Pseudodiaptomus annandalei, at a density of 1631 individuals (ind.)/m(3), station 3 was represented by Pse. annandalei and Apocyclops borneoensis with respective densities of 552.5 and 1.8 ind./m(3), and the seaward station 2 recorded Pse. annandalei, Paracalanus aculeatus, and A. borneoensis at respective densities of 364.9, 6.9, and 1.2 ind./m(3). At the 2nd hierarchical level, samples collected in Apr. 2002 were segregated from the others and exclusively contained coastal marine and euryhaline species. The 3rd hierarchical level included species occurring with no significant variations and classified species into 3 groups: (i) species with relative abundances of 1.4%-2.9% occurring during the post-spring period but without significant temporal variations, (ii) the freshwater species of cyclopoid copepod, Mesocyclops pehpeiensis, and (iii) copepod species represented by local coastal, marine, and brackish-water species characteristic of warm tropical and subtropical waters. The Euclidean distance measurement separated the copepod community into 5 groups. The most indicative euryhaline species at upstream stations, Pse. annandalei was separated at the 1st level without clustering with any other species. The 2nd most abundant species, Mesocyclops pehpeiensis, grouped with other coastal species at the 2nd level of grouping; however it was separated at the 3rd level of grouping without associating with any other coastl or marine species. http://zoolstud.sinica.edu.tw/Journals/49.3/335.pdf
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WOS记录号: WOS:000277820800007
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内容类型: 期刊论文
URI标识: http://ir.scsio.ac.cn/handle/344004/3832
Appears in Collections:中科院海洋生物资源可持续利用重点实验室_期刊论文

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Hwang, JS; Kumar, R; Hsieh, CW; Kuo, AY; Souissi, S; Hsu, MH; Wu, JT; Liu, WC; Wang, CF; Chen, QC.Patterns of Zooplankton Distribution along the Marine, Estuarine, and Riverine Portions of the Danshuei Ecosystem in Northern Taiwan,ZOOLOGICAL STUDIES,2010,49(3):335-352
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