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Vol. 49 No. 5, 2010
Composition, Abundance, and Diversity of the Peracarida on
Different Vegetation Types in the Qi’ao-Dan’gan Island Mangrove Nature
Reserve on Qi’ao Island in the Pearl River Estuary, China
Chang-Fu
Wang1, Xian-Qiu Ren2, and Run-Lin Xu1,*
1School
of Life Sciences, Sun Yat-sen Univ., Guangzhou 510275, China
2Institute of Oceanology, Chinese Academy of Sciences,
Qingdao 266071, China
Chang-Fu Wang,
Xian-Qiu Ren, and Run-Lin Xu (2010) Almost nothing is known about the
Peracarida in the Pearl River estuary. This is the 1st report to
study the composition, abundance, and diversity of the Peracarida in
the Qi’ao-Dan’gan I. Mangrove Nature Reserve on Qi’ao I., in the Pearl
River estuary, southern China. Bimonthly samplings were carried
out in 3 representative vegetation types (mangrove arbor, emergent
plants, and seaweed) for 2 yr. Using a Peterson grab, 1940
individuals (ind.) were collected in total, including 11 species of 6
genera, 5 families, and 3 orders (Amphipoda, Isopoda, and
Tanaidacean). Discapseudes mackiei Bamber 1997 was the dominant
species with the highest density of 1,432 ind./m2. The effect of
temperature on the abundance of Peracarida was significant (p <
0.01), and the optimum temperature was 22-23°C in both the mangrove
arbor and seaweed. The results showed that the abundance of the
Peracarida was higher in the mangrove arbor, while the diversity,
especially Amphipoda diversity, was higher in the seaweed. In
contrast, emergent plants provided no suitable habitats for the
Peracarida.
Key words: Crustaceans, Discapseudes mackiei,
Zoobenthos, Biodiversity.
*Correspondence: Tel: 86-20-84113185.
E-mail:xurunlin_1960@yahoo.com
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