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Title: Spatial distribution of copepods in surface waters of the southeastern Taiwan Strait
Authors: Wen-Tseng Lo
Jiang-Shiou Hwang
Qing-Chao Chen
Contributors: 國立臺灣海洋大學:生命科學系
Keywords: Upwelling.
Spatial distribution
Copepod composition
Taiwan Strait
South China Sea
Date: 2004
Issue Date: 2018-03-29T03:01:03Z
Publisher: Zoological Studies
Abstract: Abstract: Spatial distributions of copepod assemblages
relative to hydrological conditions in the southeastern Taiwan Strait. Zoological Studies 43(2): 218-228.
Those were investigated during 16-19 June 1998. In all, 90 species of copepods were identified. The mean
numerical abundance of copepods was 37.9 ± 12.7 individuals m-3. Among these species, Acrocalanus
gracilis, with an occurrence rate of 86%, was the most dominant taxon, contributing 37% to the numerical total
of copepods. Other dominant copepods included Undinula vulgaris (11%), Oncaea venusta (7%), and
Farranula gibbula (6%). The numerical abundance and species richness of copepods were higher in the
waters south of the Penghu Islands. This area is affected by topographical upwelling due to the northwardflowing
Kuroshio Current and South China Sea waters meeting the shallower shelf of the Taiwan Strait.
Meanwhile, the lowest abundance and species richness of copepods were found at stations near the center of
the Strait. Distribution patterns varied with different species, e.g., Acrocalanus gracilis, Undinula vulgaris, and
Oncaea venusta had higher abundances in waters southwest of the Penghu Islands, while Farranula gibbula
had higher abundance in coastal waters. Other dominant copepods exhibited higher abundances in coastal
waters associated with either topographic or hydrographic conditions. Three station groups were defined using
cluster analysis: southern stations off the Penghu Islands, stations near the center of the Taiwan Strait, and stations
in the Penghu Channel. The last station group was particularly distinct from the others. Three copepod
species groups were also distinguished and are herein discussed.
Relation: 43(2)
URI: http://ntour.ntou.edu.tw:8080/ir/handle/987654321/45624
Appears in Collections:[海洋生物研究所] 期刊論文

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