Vol. 51 No. 8, 2012
Siphonophores from a Transect off Southern Taiwan between the
Kuroshio Current and South China Sea
Wen-Tseng
Lo1, Pin-Ren Kang1, and Hung-Yen Hsieh2,3,*
1Institute
of Marine Biotechnology and Resources, National Sun Yat-sen University,
Kaohsiung 804, Taiwan
2Institute of Marine Biodiversity and Evolutionary
Biology, National Dong Hwa University, Hualien 974, Taiwan
3National Museum of Marine Biology and Aquarium,
Pingtung 944, Taiwan
Wen-Tseng Lo, Pin-Ren Kang, and Hung-Yen
Hsieh (2012) Seasonal variations in the siphonophore community
were related to the hydrography along a transect in the South China Sea
(SCS) and Kuroshio Current off southern Taiwan from Jan. 2005 to Oct.
2006. In total, 55 siphonophore taxa were identified during the
study period, comprising 44 calycophores and 11 physonects. The
diphyids Chelophyes contorta
and C. appendiculata and the
abylids Bassia bassensis, Abylopsis eschscholtzi, and A. tetragona were the 5 most
abundant species. Siphonophore abundances showed significant
temporal and spatial differences, with higher abundances usually in
summer at the western end of the transect line. Although species
compositions of the predominant siphonophores were similar among
seasons, the number of siphonophore species was higher during the warm
season. Our results indicated that variations in seawater
temperature had a minor effect on the distribution pattern of
siphonophores in waters off southern Taiwan; however, seasonality in
zooplankton biomass may be an important factor controlling seasonal
cycles of siphonophore abundances.
Key words: Siphonophore, Community
composition, South China Sea, Kuroshio.
*Correspondence: Tel: 886-8-8825001 ext. 8026. Fax:
886-8-8825086. E-mail:hyhsieh@mail.ndhu.edu.tw
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