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Gut contents of bighead carp (Aristichthys nobilis) and the processing and digestion of algal cells in the alimentary canal
Ping Xie; Xie, P, Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol China, Donghu Expt Stn Lake Ecosyst, Wuhan 430072, Peoples R China
2001
Source PublicationAQUACULTURE
Volume195Issue:1-2Pages:149-161
AbstractBighead carp is one of the most important freshwater filter-feeding fish of Chinese aquaculture. In recent decades, there have been a number of contradictory conclusions on the digestibility of algae by bighead carp based on the results from gut contents and digestive enzyme analysis or radiolabelled isotope techniques. Phytoplankton in the gut contents of bighead carp (cultured in a large net cage in Lake Donghu) were studied during March-May. In biomass, the dominant phytoplankters in the fore-gut contents were the centric diatom Cyclotella (average 54.5%, range 33.8-74.3%) and the dinoflagellate Cryptomonas (average 22.8%, range 6.8-55.8%). Phytoplankton in water samples were generally present in proportionate amounts in samples from the fore-guts of bighead carp. The size of most phytoplankton present in the intestine of bighead carp was between 8 and 20 mum in length. Bighead carp was also able to collect particles (as small as 5-6 mum) much smaller than their filtering net meshes, suggesting the importance of mucus in collecting small particles, Examination of the change in the integrity of Cyclotella on passage through the esophagus of bighead carp indicated that disruption of the algal cell walls is principally by the pharyngeal teeth, explaining the previous contradictory conclusions. (C) 2001 Elsevier Science B.V. All rights reserved.
KeywordFilter-feeding Fish Gut Contents Breakdown Of Algal Cells Sizes Of Ingested Algae Bighead Carp (Aristichthys Nobilis)
DepartmentChinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol China, Donghu Expt Stn Lake Ecosyst, Wuhan 430072, Peoples R China
Subject AreaFisheries ; Marine & Freshwater Biology
Indexed BySCI
WOS IDWOS:000167571600013
Citation statistics
Cited Times:39[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ihb.ac.cn/handle/152342/10026
Collection期刊论文
Corresponding AuthorXie, P, Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol China, Donghu Expt Stn Lake Ecosyst, Wuhan 430072, Peoples R China
Recommended Citation
GB/T 7714
Ping Xie,Xie, P, Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol China, Donghu Expt Stn Lake Ecosyst, Wuhan 430072, Peoples R China. Gut contents of bighead carp (Aristichthys nobilis) and the processing and digestion of algal cells in the alimentary canal[J]. AQUACULTURE,2001,195(1-2):149-161.
APA Ping Xie,&Xie, P, Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol China, Donghu Expt Stn Lake Ecosyst, Wuhan 430072, Peoples R China.(2001).Gut contents of bighead carp (Aristichthys nobilis) and the processing and digestion of algal cells in the alimentary canal.AQUACULTURE,195(1-2),149-161.
MLA Ping Xie,et al."Gut contents of bighead carp (Aristichthys nobilis) and the processing and digestion of algal cells in the alimentary canal".AQUACULTURE 195.1-2(2001):149-161.
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