Effects of organic enrichment on sandy beach meiofauna: A laboratory microcosm experiment |
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| Authors: | Jianing Wang Hong Zhou Zhinan Zhang Bingqing Cong Shuhui Xu |
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| Institution: | (1) Department of Environmental Health, School of Public Health and Tropical Medicine, Southern Medical University, Guangzhou, 510515, China;(2) Department of Biology and Chemistry, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong, SAR, China; |
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| Abstract: | Meiofauna samples from intertidal sediments of Qingdao No.2 Bathing Beach, China, were collected for field study, and subjected
to organic enrichment in a laboratory microcosm experiment for 21 d. There were three different treatments including non-organic
addition as the control, low-organic enrichment (2 g DW green algae per 150 mL) and high-organic enrichment (10 g DW green
algae per 150 mL). After 21 d, the meiofauna richness decreased in both organic enrichment treatments. Among the three treatments,
total meiofauna abundance was significantly different, and the control groups had higher abundance than the other two treatment
groups. However, the responses of the meiofauna abundance in the two organic enrichment treatments were non-significantly
different. The relationship of meiofaunal abundance and nematode/copepod ratios to organic matter and oxygen level in the
microcosm experiments were discussed. |
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