The reproductive traits of brown trout (Salmo trutta fario L.) from the Yadong River, Tibet
文献类型：期刊论文
| 作者 | Hao, FuHua1,2; Chen, YiFeng1 |
| 刊名 | ENVIRONMENTAL BIOLOGY OF FISHES
 |
| 出版日期 | 2009-09-01 |
| 卷号 | 86期号:1页码:89-96 |
| ISSN号 | 0378-1909 |
| 关键词 | Salmo trutta fario L. Reproduction Tibet |
| 通讯作者 | Chen, YF, Chinese Acad Sci, Inst Hydrobiol, 7 Donghu S Rd, Wuhan 430072, Peoples R China |
| 中文摘要 | Some key aspects of the reproductive strategy of the brown trout (Salmo trutta fario L.) in the Yadong River, Tibet, including spawning season, age at sexual maturity, fecundity and egg size, have been studied. The majority of the samples were less than 215 mm and age ranged from 1 to 4 in both sexes, indicating that the majority of the fish were younger and the pressure by overfishing was high. The spawning periodicity was determined to be between the end of October and January, mainly in November and December. The ratio of male to female brown trout population (1.29:1 with P > 0.05) suggested no sex significant differences, although males were significantly more abundant than females in October (P < 0.0001) on monthly basis. Age and size of males and females at maturity was different and males matured earlier than females. Fecundity was markedly correlated with their body weight (P < 0.001, r = 0.9255), standard length (P < 0.01, r = 0.8879), and gonad weight (P < 0.001, r = 0.9366). The mean size of mature eggs in the spawning season was: 4.0 +/- 0.45 mm and tended to increase along with the female spawners size (P < 0.001, r = 0.9641). Further researches about the brown trout population in the Yadong River should be conducted on issues such as artificial reproduction, culture, conservation, management, and restocking. |
| 英文摘要 | Some key aspects of the reproductive strategy of the brown trout (Salmo trutta fario L.) in the Yadong River, Tibet, including spawning season, age at sexual maturity, fecundity and egg size, have been studied. The majority of the samples were less than 215 mm and age ranged from 1 to 4 in both sexes, indicating that the majority of the fish were younger and the pressure by overfishing was high. The spawning periodicity was determined to be between the end of October and January, mainly in November and December. The ratio of male to female brown trout population (1.29:1 with P > 0.05) suggested no sex significant differences, although males were significantly more abundant than females in October (P < 0.0001) on monthly basis. Age and size of males and females at maturity was different and males matured earlier than females. Fecundity was markedly correlated with their body weight (P < 0.001, r = 0.9255), standard length (P < 0.01, r = 0.8879), and gonad weight (P < 0.001, r = 0.9366). The mean size of mature eggs in the spawning season was: 4.0 +/- 0.45 mm and tended to increase along with the female spawners size (P < 0.001, r = 0.9641). Further researches about the brown trout population in the Yadong River should be conducted on issues such as artificial reproduction, culture, conservation, management, and restocking. |
| 学科主题 | Ecology; Marine & Freshwater Biology |
| WOS标题词 | Science & Technology ; Life Sciences & Biomedicine |
| 类目[WOS] | Ecology ; Marine & Freshwater Biology |
| 研究领域[WOS] | Environmental Sciences & Ecology ; Marine & Freshwater Biology |
| 关键词[WOS] | MACROSTIGMA DUMERIL 1858 ; INTERPOPULATION VARIATION ; SPAWNING CHARACTERISTICS ; ATLANTIC SALMON ; EGG NUMBER ; TRADE-OFF ; STREAM ; GROWTH ; SIZE ; AGE |
| 资助信息 | National Natural Science Foundation of China [30123004]; Knowledge Innovation Program of the Chinese Academy of Sciences [KSCX2-SW-125] |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000271264000013 |
| 公开日期 | 2010-10-13 |
| 源URL | [http://ir.ihb.ac.cn/handle/152342/7518]  |
| 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 | 1.Chinese Acad Sci, Inst Hydrobiol, Wuhan 430072, Peoples R China 2.Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China |
| 推荐引用方式 GB/T 7714 | Hao, FuHua,Chen, YiFeng. The reproductive traits of brown trout (Salmo trutta fario L.) from the Yadong River, Tibet[J]. ENVIRONMENTAL BIOLOGY OF FISHES,2009,86(1):89-96. |
| APA | Hao, FuHua,&Chen, YiFeng.(2009).The reproductive traits of brown trout (Salmo trutta fario L.) from the Yadong River, Tibet.ENVIRONMENTAL BIOLOGY OF FISHES,86(1),89-96. |
| MLA | Hao, FuHua,et al."The reproductive traits of brown trout (Salmo trutta fario L.) from the Yadong River, Tibet".ENVIRONMENTAL BIOLOGY OF FISHES 86.1(2009):89-96. |
入库方式： OAI收割
来源：水生生物研究所
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