IHB OpenIR  > 淡水生态学研究中心  > 期刊论文
The Impact of Fish Predation and Cyanobacteria on Zooplankton Size Structure in 96 Subtropical Lakes
Zhang, Jing1,2; Xie, Ping2; Tao, Min2; Guo, Longgen2; Chen, Jun2; Li, Li1; Zhang, XueZhen1; Zhang, Lu3; Xie, P (reprint author), Chinese Acad Sci, Donghu Expt Stn Lake Ecosyst, State Key Lab Freshwater Ecol & Biotechnol China, Inst Hydrobiol, Wuhan, Hubei, Peoples R China.
2013-10-04
Source PublicationPLOS ONE
ISSN1932-6203
Volume8Issue:10Pages:e76378
AbstractZooplankton are relatively small in size in the subtropical regions. This characteristic has been attributed to intense predation pressure, high nutrient loading and cyanobacterial biomass. To provide further information on the effect of predation and cyanobacteria on zooplankton size structure, we analyzed data from 96 shallow aquaculture lakes along the Yangtze River. Contrary to former studies, both principal components analysis and multiple regression analysis showed that the mean zooplankton size was positively related to fish yield. The studied lakes were grouped into three types, namely, natural fishing lakes with low nutrient loading (Type1), planktivorous fish-dominated lakes (Type 2), and eutrophic lakes with high cyanobacterial biomass (Type 3). A marked difference in zooplankton size structure was found among these groups. The greatest mean zooplankton size was observed in Type 2 lakes, but zooplankton density was the lowest. Zooplankton abundance was highest in Type 3 lakes and increased with increasing cyanobacterial biomass. Zooplankton mean size was negatively correlated with cyanobacterial biomass. No obvious trends were found in Type 1 lakes. These results were reflected by the normalized biomass size spectrum, which showed a unimodal shape with a peak at medium sizes in Type 2 lakes and a peak at small sizes in Type 3 lakes. These results indicated a relative increase in medium-sized and small-sized species in Types 2 and 3 lakes, respectively. Our results suggested that fish predation might have a negative effect on zooplankton abundance but a positive effect on zooplankton size structure. High cyanobacterial biomass most likely caused a decline in the zooplankton size and encouraged the proliferation of small zooplankton. We suggest that both planktivorous fish and cyanobacteria have substantial effects on the shaping of zooplankton community, particularly in the lakes in the eastern plain along the Yangtze River where aquaculture is widespread and nutrient loading is high.; Zooplankton are relatively small in size in the subtropical regions. This characteristic has been attributed to intense predation pressure, high nutrient loading and cyanobacterial biomass. To provide further information on the effect of predation and cyanobacteria on zooplankton size structure, we analyzed data from 96 shallow aquaculture lakes along the Yangtze River. Contrary to former studies, both principal components analysis and multiple regression analysis showed that the mean zooplankton size was positively related to fish yield. The studied lakes were grouped into three types, namely, natural fishing lakes with low nutrient loading (Type1), planktivorous fish-dominated lakes (Type 2), and eutrophic lakes with high cyanobacterial biomass (Type 3). A marked difference in zooplankton size structure was found among these groups. The greatest mean zooplankton size was observed in Type 2 lakes, but zooplankton density was the lowest. Zooplankton abundance was highest in Type 3 lakes and increased with increasing cyanobacterial biomass. Zooplankton mean size was negatively correlated with cyanobacterial biomass. No obvious trends were found in Type 1 lakes. These results were reflected by the normalized biomass size spectrum, which showed a unimodal shape with a peak at medium sizes in Type 2 lakes and a peak at small sizes in Type 3 lakes. These results indicated a relative increase in medium-sized and small-sized species in Types 2 and 3 lakes, respectively. Our results suggested that fish predation might have a negative effect on zooplankton abundance but a positive effect on zooplankton size structure. High cyanobacterial biomass most likely caused a decline in the zooplankton size and encouraged the proliferation of small zooplankton. We suggest that both planktivorous fish and cyanobacteria have substantial effects on the shaping of zooplankton community, particularly in the lakes in the eastern plain along the Yangtze River where aquaculture is widespread and nutrient loading is high.
SubtypeArticle
KeywordCarp Hypophthalmichthys-molitrix Food-web Structure Shallow Lakes Body-size Crustacean Zooplankton Microcystis-aeruginosa Mesocosm Experiment Eutrophic Lake Chinese Lake Ecosystem
Department[Zhang, Jing ; Li, Li ; Zhang, XueZhen] Huazhong Agr Univ, Coll Fisheries, Wuhan, Hubei, Peoples R China ; [Zhang, Jing ; Xie, Ping ; Tao, Min ; Guo, Longgen ; Chen, Jun] Chinese Acad Sci, Donghu Expt Stn Lake Ecosyst, State Key Lab Freshwater Ecol & Biotechnol China, Inst Hydrobiol, Wuhan, Hubei, Peoples R China ; [Zhang, Lu] Chinese Acad Sci, Nanjing Inst Geog & Limnol, Nanjing, Jiangsu, Peoples R China
DOI10.1371/journal.pone.0076378
WOS HeadingsScience & Technology
Funding OrganizationLake water quality, water quantity and biological resources investigation in China [2006FY110600]; National water pollution control and management technology major projects [2012ZX07101-002] ; Lake water quality, water quantity and biological resources investigation in China [2006FY110600]; National water pollution control and management technology major projects [2012ZX07101-002] ; Lake water quality, water quantity and biological resources investigation in China [2006FY110600]; National water pollution control and management technology major projects [2012ZX07101-002] ; Lake water quality, water quantity and biological resources investigation in China [2006FY110600]; National water pollution control and management technology major projects [2012ZX07101-002]
Indexed BySCI
Language英语
WOS Research AreaScience & Technology - Other Topics
WOS SubjectMultidisciplinary Sciences
WOS IDWOS:000325489100109
WOS KeywordCARP HYPOPHTHALMICHTHYS-MOLITRIX ; FOOD-WEB STRUCTURE ; SHALLOW LAKES ; BODY-SIZE ; CRUSTACEAN ZOOPLANKTON ; MICROCYSTIS-AERUGINOSA ; MESOCOSM EXPERIMENT ; EUTROPHIC LAKE ; CHINESE LAKE ; ECOSYSTEM
Funding OrganizationLake water quality, water quantity and biological resources investigation in China [2006FY110600]; National water pollution control and management technology major projects [2012ZX07101-002] ; Lake water quality, water quantity and biological resources investigation in China [2006FY110600]; National water pollution control and management technology major projects [2012ZX07101-002] ; Lake water quality, water quantity and biological resources investigation in China [2006FY110600]; National water pollution control and management technology major projects [2012ZX07101-002] ; Lake water quality, water quantity and biological resources investigation in China [2006FY110600]; National water pollution control and management technology major projects [2012ZX07101-002]
Citation statistics
Cited Times:11[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ihb.ac.cn/handle/342005/19764
Collection淡水生态学研究中心_期刊论文
Corresponding AuthorXie, P (reprint author), Chinese Acad Sci, Donghu Expt Stn Lake Ecosyst, State Key Lab Freshwater Ecol & Biotechnol China, Inst Hydrobiol, Wuhan, Hubei, Peoples R China.
Affiliation1.Huazhong Agr Univ, Coll Fisheries, Wuhan, Hubei, Peoples R China
2.Chinese Acad Sci, Donghu Expt Stn Lake Ecosyst, State Key Lab Freshwater Ecol & Biotechnol China, Inst Hydrobiol, Wuhan, Hubei, Peoples R China
3.Chinese Acad Sci, Nanjing Inst Geog & Limnol, Nanjing, Jiangsu, Peoples R China
Recommended Citation
GB/T 7714
Zhang, Jing,Xie, Ping,Tao, Min,et al. The Impact of Fish Predation and Cyanobacteria on Zooplankton Size Structure in 96 Subtropical Lakes[J]. PLOS ONE,2013,8(10):e76378.
APA Zhang, Jing.,Xie, Ping.,Tao, Min.,Guo, Longgen.,Chen, Jun.,...&Xie, P .(2013).The Impact of Fish Predation and Cyanobacteria on Zooplankton Size Structure in 96 Subtropical Lakes.PLOS ONE,8(10),e76378.
MLA Zhang, Jing,et al."The Impact of Fish Predation and Cyanobacteria on Zooplankton Size Structure in 96 Subtropical Lakes".PLOS ONE 8.10(2013):e76378.
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