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学科主题: Marine & Freshwater Biology
题名: Mesh size affects abundance estimates of Oithona spp. (Copepoda, Cyclopoida)
作者: Hwang, JS ; Kumar, R ; Dahms, HU ; Tseng, LC ; Chen, QC
通讯作者: jshwang@mail.ntou.edu.tw
刊名: CRUSTACEANA
发表日期: 2007
卷: 80, 期:7, 页:827-837
收录类别: sci
部门归属: Natl Taiwan Ocean Univ, Inst Marine Biol, Chilung 202, Taiwan; Chinese Acad Sci, S China Sea Inst Oceanog, Guangzhou, Peoples R China
项目归属: 海洋生物
摘要: Retrieval by different mesh-sized plankton nets is compared, using the abundance and distribution patterns of cyclopoid copepods of the genus Oithona W. Baird, 1843 as a case study. Mesozooplankton was sampled during spring, summer, and autumn of 2000-2002 in the South China Sea. Plankton samples were collected by surface tows (5-0 m) and by oblique tows in three different depth layers (0-50 m, 0-100 m, and 0-150 m), with Norpac zooplankton nets of 333 and 100 mu m mesh size. The oithonid density and diversity in the plankton samples collected through a 100 mu m mesh was about one order of magnitude higher than those collected through a 333 mu m mesh. The mean occurrence frequency of Oithona spp. in the plankton samples collected through a 100 mu m mesh net was > 85% and > 60% through a 333 mu m mesh net, with a mean total density of 45.86 +/- 206.97 m(-3) for the 100 mu m mesh net compared to 2.28 +/- 21.94 m(-3) for the 333 mu m mesh net [which indicates the enormous patchiness in occurrence of these copepods]. The density of smaller mesozooplankton, as evidenced by Oithona spp., has thus been underestimated by previous researchers using larger meshed nets. Samples collected through a 100 mu m mesh net demonstrated the numerical importance of the genus Oithona and its distinct seasonal and interannual patterns of abundance and distribution in the South China Sea.
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WOS记录号: WOS:000248814200006
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内容类型: 期刊论文
URI标识: http://ir.scsio.ac.cn/handle/344004/5340
Appears in Collections:海洋生物_期刊论文

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Recommended Citation:
Hwang, JS; Kumar, R; Dahms, HU; Tseng, LC; Chen, QC.Mesh size affects abundance estimates of Oithona spp. (Copepoda, Cyclopoida),CRUSTACEANA,2007,80(7):827-837
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