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Food Consumption by In Situ Pen-Cultured Planktivorous Fishes and Effects on an Algal Bloom in Lake Taihu, China
Guo, Longgen; Ke, Zhixin; Xie, Ping; Ni, Leyi; Xie, P, Chinese Acad Sci, Donghu Expt Stn Lake Ecosyst, State Key Lab Freshwater Ecol & Biotechnol China, Inst Hydrobiol, Wuhan 430072, Peoples R China
2009-03-01
Source PublicationJOURNAL OF FRESHWATER ECOLOGY
ISSN0270-5060
Volume24Issue:1Pages:135-143
AbstractSilver carp (Hypophthalmichthys molitrix) and bighead carp (Aristichthys nobilis) were used as a new pen-cultureed biomanipulation technique to control algal blooms in Meiliang Bay of Lake Taihu. In order to evaluate the capacity of these two fishes to decrease algal blooms, diel feeding samplings were carried out in May (without algal blooms) and September (with algal blooms) in 2005. Based on estimated food consumption by the Elliott-Persson model, silver carp increased daily food consumption from 2.07 g dry weight per 100 g wet body weight in May before the outbreak of algal blooms to 4.98 g dry weight per 100 g wet body weight in September during algal blooms outbreak. However, no obvious variation of food consumption was observed in bighead carp during the study period. This species 1.88 and 1.54 g dry weight of plankton per 100 g wet body weight in May and September, respectively. Silver carp had a higher feeding capacity for plankton than bighead carp. Biotic factors (i.e., fish size and conspecific competition with natural species in the lake) may affect the feeding behaviors of both carps as well as seasonal variation of plankton communities in the pen.; Silver carp (Hypophthalmichthys molitrix) and bighead carp (Aristichthys nobilis) were used as a new pen-cultureed biomanipulation technique to control algal blooms in Meiliang Bay of Lake Taihu. In order to evaluate the capacity of these two fishes to decrease algal blooms, diel feeding samplings were carried out in May (without algal blooms) and September (with algal blooms) in 2005. Based on estimated food consumption by the Elliott-Persson model, silver carp increased daily food consumption from 2.07 g dry weight per 100 g wet body weight in May before the outbreak of algal blooms to 4.98 g dry weight per 100 g wet body weight in September during algal blooms outbreak. However, no obvious variation of food consumption was observed in bighead carp during the study period. This species 1.88 and 1.54 g dry weight of plankton per 100 g wet body weight in May and September, respectively. Silver carp had a higher feeding capacity for plankton than bighead carp. Biotic factors (i.e., fish size and conspecific competition with natural species in the lake) may affect the feeding behaviors of both carps as well as seasonal variation of plankton communities in the pen.
SubtypeArticle
KeywordCarp Hypophthalmichthys-molitrix Daily Ration Silver Carp Aristichthys-nobilis Plankton Community Bighead Carp Feeding Selectivity Meiliang Bay Gut Contents Phytoplankton
Department[Guo, Longgen; Ke, Zhixin; Xie, Ping; Ni, Leyi] Chinese Acad Sci, Donghu Expt Stn Lake Ecosyst, State Key Lab Freshwater Ecol & Biotechnol China, Inst Hydrobiol, Wuhan 430072, Peoples R China
Subject AreaEcology ; Limnology
WOS HeadingsScience & Technology ; Life Sciences & Biomedicine
Funding OrganizationKey Technologies Research and Development [2002AA601011] ; Key Technologies Research and Development [2002AA601011] ; Key Technologies Research and Development [2002AA601011] ; Key Technologies Research and Development [2002AA601011]
Indexed BySCI
Language英语
WOS Research AreaEnvironmental Sciences & Ecology ; Marine & Freshwater Biology
WOS SubjectEcology ; Limnology
WOS IDWOS:000263434300016
WOS KeywordCARP HYPOPHTHALMICHTHYS-MOLITRIX ; DAILY RATION ; SILVER CARP ; ARISTICHTHYS-NOBILIS ; PLANKTON COMMUNITY ; BIGHEAD CARP ; FEEDING SELECTIVITY ; MEILIANG BAY ; GUT CONTENTS ; PHYTOPLANKTON
Funding OrganizationKey Technologies Research and Development [2002AA601011] ; Key Technologies Research and Development [2002AA601011] ; Key Technologies Research and Development [2002AA601011] ; Key Technologies Research and Development [2002AA601011]
Citation statistics
Document Type期刊论文
Identifierhttp://ir.ihb.ac.cn/handle/152342/7860
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
Guo, Longgen,Ke, Zhixin,Xie, Ping,et al. Food Consumption by In Situ Pen-Cultured Planktivorous Fishes and Effects on an Algal Bloom in Lake Taihu, China[J]. JOURNAL OF FRESHWATER ECOLOGY,2009,24(1):135-143.
APA Guo, Longgen,Ke, Zhixin,Xie, Ping,Ni, Leyi,&Xie, P, Chinese Acad Sci, Donghu Expt Stn Lake Ecosyst, State Key Lab Freshwater Ecol & Biotechnol China, Inst Hydrobiol, Wuhan 430072, Peoples R China.(2009).Food Consumption by In Situ Pen-Cultured Planktivorous Fishes and Effects on an Algal Bloom in Lake Taihu, China.JOURNAL OF FRESHWATER ECOLOGY,24(1),135-143.
MLA Guo, Longgen,et al."Food Consumption by In Situ Pen-Cultured Planktivorous Fishes and Effects on an Algal Bloom in Lake Taihu, China".JOURNAL OF FRESHWATER ECOLOGY 24.1(2009):135-143.
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