Aquat. Living Resour.
Volume 29, Number 3, July-September 2016
|Number of page(s)||10|
|Published online||09 December 2016|
A first description of ciliate assemblages in a subtropical, eutrophic bay, South China Sea: species assemblage and environmental correlates
1 Guangdong Provincial Key Laboratory
of Fishery Ecology and Environment, Key Laboratory of South China Sea Fishery
Resources Exploitation & Utilization, Ministry of Agriculture, South China Sea
Fisheries Research Institute, Chinese Academy of Fisheries Sciences,
2 South China Sea Institute of Planning and Environmental Research, South China Sea Branch, SOA, Guangzhou 510310, P.R. China
3 Key Laboratory of Tropical Marine Bio-resources and Ecology, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 510301, P.R. China
a Corresponding author: email@example.com;
Accepted: 5 September 2016
The ciliate community together with physical-chemical variables was investigated in a subtropical, eutrophic bay of the South China Sea from January 7–10 (dry season) and April 27–30 (wet season), 2012. Both temperature and salinity exhibited typical seasonality. A total of 27 species of ciliates belonging to 19 genera were identified, and the dominant species were Strombidium globosaneum in January and Codonella rapa in April. The composition and abundance exhibited spatial and temporal fluctuations, with total mean abundance of ciliates in April (1219 ± 919 ind l-1), was much higher than that in January (283 ± 137 ind l-1). Spatially, high species numbers were found mainly near the mouth of the estuary, and the abundance decreased from inside to the mouth of the bay. Statistical analysis showed that ciliate assemblages were closely related to the environmental variables. The distribution patterns of salinity and chlorophyll a concentration were similar, suggesting that, prey abundance may correlate significantly with ciliate abundance, and salinity may not be the main factor explaining the spatial variation in the ciliate community in the study area.
Key words: Ciliates / environmental change / eutrophic / Maowei Sea
© EDP Sciences 2016
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