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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 PublicationHYDROBIOLOGIA
ISSN0018-8158
Volume575Pages:203-209
AbstractCrustacean 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.
SubtypeArticle
KeywordMean Body Length Total Phosphorus Chlorophyll a Filter-feeding Fish
DepartmentChinese Acad Sci, Donghu Expt Stn Lake Ecosyst, State Key Lab Freshwater Ecol & Biotechnol China, Inst Hydrobiol, Wuhan 430072, Peoples R China
Subject AreaMarine & Freshwater Biology
DOI10.1007/s10750-006-0394-7
WOS HeadingsScience & Technology ; Life Sciences & Biomedicine
Indexed BySCI
Language英语
WOS Research AreaMarine & Freshwater Biology
WOS SubjectMarine & Freshwater Biology
WOS IDWOS:000242505000016
WOS KeywordFOOD-WEB STRUCTURE ; COMMUNITY STRUCTURE ; PHOSPHORUS CHLOROPHYLL ; BODY-SIZE ; FISH ; PLANKTON ; MECHANISMS ; PREDATION ; CLADOCERANS ; RESERVOIRS
Citation statistics
Document Type期刊论文
Identifierhttp://ir.ihb.ac.cn/handle/152342/8758
Collection期刊论文
Corresponding AuthorXie, P, Chinese Acad Sci, Donghu Expt Stn Lake Ecosyst, State Key Lab Freshwater Ecol & Biotechnol China, Inst Hydrobiol, Wuhan 430072, Peoples R China
AffiliationChinese 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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