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Vol. 43 No. 2, 2004
Calanoid Copepods of the Kuroshio Current East of Taiwan, with Notes on the Presence of Calanus jashnovi Huslemann, 1994
Shih-Hui Hsiao1, Chun-Yein Lee2, Chang-tai Shih2,3,4,*, Jiang-Shiou Hwang1
1Institute of Marine Biology, National Taiwan Ocean University, Keelung, Taiwan 202
2Taiwan Fisheries Research Institute, Keelung, Taiwan 202
3Canadian Museum of Nature, Ottawa, Canada K1P 6P4
4Current mailing address: 70 Lien-Hai Road, National Sun Yat-sen University, Kaohsiung, Taiwan 804
Shih-Hui Hsiao, Chun-Yein Lee, Chang-tai Shih, Jiang-Shiou Hwang (2004)
In this work, part of a project on the species composition and
distribution of planktonic calanoid copepods in the section of the
Kuroshio Current east of Taiwan, we studied samples taken by plankton
net towed obliquely from depths of 200 to 0 m and 800 to 0 m. We
identified 144 species of calanoids in total, with 111 species in the
200~0-m samples and 96 in the 800~0-m samples. There were 63 species in
common in samples from the 2 depths, with 48 species found only in the
shallow and 33 species only in the deep samples. Elimination of species
known to be widely distributed in the northwestern Pacific Ocean from
our species list produced a short list of 24 species. Nine of these
species, predominant in the 200~0-m samples, were determined to be
related to southerly waters and 12 species, mainly in the 800~0-m
samples, were determined to be affiliated with northerly waters.
Another 3 species, Pareucalanus langae, Heterorhabdus spinosus, and Spinocalanus usitatus, are new to the northwestern Pacific. Calanus jashnovi,
an inhabitant of the transitional waters in the northwestern Pacific
and frequently appearing in our 800~0-m samples, is considered to be an
indicator species of the North Pacific Intermediate Water.
Key words: Taiwan Current, Calanoid composition/distribution, Indicator species.
*Correspondence: Fax: 886-7-5255020. E-mail: ctshih@mail.nsysu.edu.tw
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