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Vol. 53, 2014
Hydroids (Cnidaria, Hydrozoa) from marine environments in
Taiwan
Li-Chun
Tseng1†, Cheng-Han Wu1, Wen-Hung Twan2,
Zhi-Can Tang3† and Jiang-Shiou Hwang1*
1Institute
of Marine Biology, College of Life Sciences, National Taiwan Ocean
University, 2 Pei-Ning Road, Keelung 20224, Taiwan
2Institute of Life Science, National Taitung
University, 684, Sec. 1, Chunghua Road, Taitung 95092, Taiwan
3Institute of Oceanology, Academia Sinica, Qingdao
266071, China
Abstract
Background: Hydroids were
identified from extensive surveys of benthos, and especially from worm
tubes, in the Danshuei River estuary (DRE), in the northeast Taiwan
Strait (NETS), and on a reef in Nanwan Bay (NWB), Taiwan.
Results: A total of 33 species (12 of them
identified to generic and 1 to family rank only), referable to 22
genera, 12 families, and 2 orders, were distinguished. The majority of
them were referable to order Leptothecata (84.8%) with the remainder
being assigned to order Anthoathecata (15.2%). The only species found
at NETS was Monoserius pennarius
(Linnaeus, 1758). Plumularia habereri
(Stechow, 1909) was recorded at both DRE and NWB. The known range of Dynamena nanshaensis (Tang, 1991),
recorded for the second time, is extended further north. Six species (Aglaophenia latecarinata, Plumularia floridana, Diphasia palmata, Dynamena brevis, Dynamena obliqua, Synthecium elegans) are recorded for the first
time in waters adjacent to the Chinese mainland.
Conclusions: Species composition
and abundances varied considerably from one environment to another and
especially between DRE and NWB. This study provides the first taxonomic
account of the hydroid fauna inhabiting the eastern Taiwan Strait
region.
Key words: Cnidaria; Hydroids; Reef; Worm
tube; Taiwan; East China Sea; South China Sea.
*Correspondence: E-mail: jshwang@mail.ntou.edu.tw †Equal
contributors
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