Gut contents of bighead carp (Aristichthys nobilis) and the processing and digestion of algal cells in the alimentary canal
文献类型：期刊论文
| 作者 | Xie, P |
| 刊名 | AQUACULTURE
 |
| 出版日期 | 2001-04-02 |
| 卷号 | 195期号:1-2页码:149-161 |
| 关键词 | filter-feeding fish gut contents breakdown of algal cells sizes of ingested algae bighead carp (Aristichthys nobilis) |
| ISSN号 | 0044-8486 |
| 通讯作者 | Xie, P, Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol China, Donghu Expt Stn Lake Ecosyst, Wuhan 430072, Peoples R China |
| 中文摘要 | Bighead 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. |
| 英文摘要 | Bighead 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. |
| WOS标题词 | Science & Technology ; Life Sciences & Biomedicine |
| 学科主题 | Fisheries; Marine & Freshwater Biology |
| 类目[WOS] | Fisheries ; Marine & Freshwater Biology |
| 研究领域[WOS] | Fisheries ; Marine & Freshwater Biology |
| 关键词[WOS] | SUBTROPICAL CHINESE LAKE ; FOOD-HABITS ; SILVER CARP ; PONDS ; FISH ; PLANKTON ; IMPACT ; CAGES |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000167571600013 |
| 公开日期 | 2010-10-13 |
| 源URL | [http://ir.ihb.ac.cn/handle/152342/10026]  |
| 专题 | 水生生物研究所_中科院水生所知识产出（2009年前）_期刊论文 |
| 作者单位 | Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol China, Donghu Expt Stn Lake Ecosyst, Wuhan 430072, Peoples R China |
| 推荐引用方式 GB/T 7714 | Xie, P. 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 | Xie, P.(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 | Xie, P."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. |
入库方式： OAI收割
来源：水生生物研究所
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