Composition of fish communities in an intertidal salt marsh creek in the Changjiang River estuary,China
Composition of fish communities in an intertidal salt marsh creek in the Changjiang River estuary,China作者机构:Key and Open Laboratory of Marine and Estuarine FisheryMinistry of AgricultureEast China Sea Fishery Research InstituteChinese Academy of Fishery Sciences
出 版 物:《Chinese Journal of Oceanology and Limnology》 (中国海洋湖沼学报(英文版))
年 卷 期:2009年第27卷第4期
页 面:806-815页
核心收录:
主 题:fish communities habitat nursery tidal creek salt marsh Changjiang (Yangtze) River estuary
摘 要:Fish communities in a (third-order) intertidal creek in Dongtan marsh in the Changjiang (Yangtze) River estuary were investigated seasonally for one year. A total of 1 996 fish specimens (10 967.8 g) comprising 26 species and 15 families were collected. Abundances of fish communities in the intertidal salt marsh creek were primarily dominated by Boleophthalmus pectinirostris (19.8%), Collichthys lucidus (18.6%), Periophthalmus magnuspinnatus (18.2%), Liza haematocheilus (17.9%), and secondarily by Mugilogobius abel (8.5%), L. carinatus (7.2%), Odontamblyopus lacepedii (4.3%), and Acanthogobius ommaturus (3.9%); another 18 species were present only occasionally. Non-MDS ordination and SIMPER analysis indicated that there were two fish communities in the intertidal salt marsh creek. In spring, the communities were dominated by B. pectinirostris, P. magnuspinnatus, C. lucidus and M. abei; in summer, autumn, and winter by L. haematocheilus, L. carinatus, A. ommaturus and O. lacepedii. Some species showed strong habitat selection; L. carinatus and P magnuspinnatus were distributed mainly in the upper and middle creek, while B. pectinirostris, M. abei and O. lacepedii inhabited the middle and lower creek. The study indicated that the salt marshes of the Changjiang River estuary are an important nursery and feeding habitat for many fishes and should be protected.