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Mesh size affects abundance estimates of Oithona spp. (Copepoda, Cyclopoida)
Hwang, JS; Kumar, R; Dahms, HU; Tseng, LC; Chen, QC; jshwang@mail.ntou.edu.tw
2007
发表期刊CRUSTACEANA
ISSN0011-216X
卷号80期号:7页码:827-837
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.
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
学科领域Marine & Freshwater Biology
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收录类别sci
资助项目海洋生物
WOS记录号WOS:000248814200006
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被引频次:27[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.scsio.ac.cn/handle/344004/5340
专题海洋生物
通讯作者jshwang@mail.ntou.edu.tw
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GB/T 7714
Hwang, JS,Kumar, R,Dahms, HU,et al. Mesh size affects abundance estimates of Oithona spp. (Copepoda, Cyclopoida)[J]. CRUSTACEANA,2007,80(7):827-837.
APA Hwang, JS,Kumar, R,Dahms, HU,Tseng, LC,Chen, QC,&jshwang@mail.ntou.edu.tw.(2007).Mesh size affects abundance estimates of Oithona spp. (Copepoda, Cyclopoida).CRUSTACEANA,80(7),827-837.
MLA Hwang, JS,et al."Mesh size affects abundance estimates of Oithona spp. (Copepoda, Cyclopoida)".CRUSTACEANA 80.7(2007):827-837.
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