| Crustacean zooplankton size structure in aquaculture lakes: is larger size structure always associated with higher grazing pressure? | |
| Wang, Songbo; Xie, Ping; Wu, Shikai; Wang, Haijun; Xie, P, Chinese Acad Sci, Donghu Expt Stn Lake Ecosyst, State Key Lab Freshwater Ecol & Biotechnol China, Inst Hydrobiol, Wuhan 430072, Peoples R China | |
| 2007 | |
| Source Publication | HYDROBIOLOGIA
 |
| ISSN | 0018-8158 |
| Volume | 575Pages:203-209 |
| Abstract | Crustacean zooplankton size structure in 27 aquaculture lakes was studied to test the hypothesis that larger size structure is associated with higher grazing pressure. Mean body length of crustaceans was positively correlated with increasing Chl a (r(2) = 0.40, P = 0.000) and TP (r(2) = 0.38, P = 0.000), contrary to the empirical studies. However, the ratio of zooplankton to phytoplankton biomass decreased significantly with increasing TP (r(2) = 0.27, P = 0.005) and mean body length (r(2) = 0.46, P = 0.000). Meanwhile, size structure showed no significant effect in explaining residual variations of phosphorus-chlorophyll relationship (P = 0.231). These results indicate that larger size structure was not always associated with higher zooplankton grazing pressure. It is likely that in aquaculture lakes crustacean zooplankton size structure was of minor importance in control of phytoplankton biomass, and it was mainly regulated by fish predation. The results showed in our study and the empirical studies might be a reflection of two different stages of lake eutrophication and fish predation intensity.; Crustacean zooplankton size structure in 27 aquaculture lakes was studied to test the hypothesis that larger size structure is associated with higher grazing pressure. Mean body length of crustaceans was positively correlated with increasing Chl a (r(2) = 0.40, P = 0.000) and TP (r(2) = 0.38, P = 0.000), contrary to the empirical studies. However, the ratio of zooplankton to phytoplankton biomass decreased significantly with increasing TP (r(2) = 0.27, P = 0.005) and mean body length (r(2) = 0.46, P = 0.000). Meanwhile, size structure showed no significant effect in explaining residual variations of phosphorus-chlorophyll relationship (P = 0.231). These results indicate that larger size structure was not always associated with higher zooplankton grazing pressure. It is likely that in aquaculture lakes crustacean zooplankton size structure was of minor importance in control of phytoplankton biomass, and it was mainly regulated by fish predation. The results showed in our study and the empirical studies might be a reflection of two different stages of lake eutrophication and fish predation intensity. |
| Subtype | Article |
| Keyword | Mean Body Length Total Phosphorus Chlorophyll a Filter-feeding Fish |
| Department | Chinese Acad Sci, Donghu Expt Stn Lake Ecosyst, State Key Lab Freshwater Ecol & Biotechnol China, Inst Hydrobiol, Wuhan 430072, Peoples R China |
| Subject Area | Marine & Freshwater Biology |
| DOI | 10.1007/s10750-006-0394-7 |
| WOS Headings | Science & Technology ; Life Sciences & Biomedicine |
| Indexed By | SCI |
| Language | 英语 |
| WOS Research Area | Marine & Freshwater Biology |
| WOS Subject | Marine & Freshwater Biology |
| WOS ID | WOS:000242505000016 |
| WOS Keyword | FOOD-WEB STRUCTURE ; COMMUNITY STRUCTURE ; PHOSPHORUS CHLOROPHYLL ; BODY-SIZE ; FISH ; PLANKTON ; MECHANISMS ; PREDATION ; CLADOCERANS ; RESERVOIRS |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.ihb.ac.cn/handle/152342/8758 |
| Collection | 期刊论文 |
| Corresponding Author | Xie, P, Chinese Acad Sci, Donghu Expt Stn Lake Ecosyst, State Key Lab Freshwater Ecol & Biotechnol China, Inst Hydrobiol, Wuhan 430072, Peoples R China |
| Affiliation | Chinese Acad Sci, Donghu Expt Stn Lake Ecosyst, State Key Lab Freshwater Ecol & Biotechnol China, Inst Hydrobiol, Wuhan 430072, Peoples R China |
| Recommended Citation GB/T 7714 | Wang, Songbo,Xie, Ping,Wu, Shikai,et al. Crustacean zooplankton size structure in aquaculture lakes: is larger size structure always associated with higher grazing pressure?[J]. HYDROBIOLOGIA,2007,575:203-209. |
| APA | Wang, Songbo,Xie, Ping,Wu, Shikai,Wang, Haijun,&Xie, P, Chinese Acad Sci, Donghu Expt Stn Lake Ecosyst, State Key Lab Freshwater Ecol & Biotechnol China, Inst Hydrobiol, Wuhan 430072, Peoples R China.(2007).Crustacean zooplankton size structure in aquaculture lakes: is larger size structure always associated with higher grazing pressure?.HYDROBIOLOGIA,575,203-209. |
| MLA | Wang, Songbo,et al."Crustacean zooplankton size structure in aquaculture lakes: is larger size structure always associated with higher grazing pressure?".HYDROBIOLOGIA 575(2007):203-209. |
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