| The reproductive traits of brown trout (Salmo trutta fario L.) from the Yadong River, Tibet | |
| Hao, FuHua1,2; Chen, YiFeng1; Chen, YF, Chinese Acad Sci, Inst Hydrobiol, 7 Donghu S Rd, Wuhan 430072, Peoples R China | |
| 2009-09-01 | |
| Source Publication | ENVIRONMENTAL BIOLOGY OF FISHES
 |
| ISSN | 0378-1909 |
| Volume | 86Issue:1Pages:89-96 |
| Abstract | 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.; 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. |
| Subtype | Article |
| Keyword | SaL.o Trutta Fario L. Reproduction Tibet |
| Department | [Hao, FuHua; Chen, YiFeng] Chinese Acad Sci, Inst Hydrobiol, Wuhan 430072, Peoples R China; [Hao, FuHua] Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China |
| Subject Area | Ecology ; Marine & Freshwater Biology |
| DOI | 10.1007/s10641-008-9363-5 |
| WOS Headings | Science & Technology ; Life Sciences & Biomedicine |
| Funding Organization | National Natural Science Foundation of China [30123004]; Knowledge Innovation Program of the Chinese Academy of Sciences [KSCX2-SW-125] ; National Natural Science Foundation of China [30123004]; Knowledge Innovation Program of the Chinese Academy of Sciences [KSCX2-SW-125] ; National Natural Science Foundation of China [30123004]; Knowledge Innovation Program of the Chinese Academy of Sciences [KSCX2-SW-125] ; National Natural Science Foundation of China [30123004]; Knowledge Innovation Program of the Chinese Academy of Sciences [KSCX2-SW-125] |
| Indexed By | SCI |
| Language | 英语 |
| WOS Research Area | Environmental Sciences & Ecology ; Marine & Freshwater Biology |
| WOS Subject | Ecology ; Marine & Freshwater Biology |
| WOS ID | WOS:000271264000013 |
| WOS Keyword | MACROSTIGMA DUMERIL 1858 ; INTERPOPULATION VARIATION ; SPAWNING CHARACTERISTICS ; ATLANTIC SALMON ; EGG NUMBER ; TRADE-OFF ; STREAM ; GROWTH ; SIZE ; AGE |
| Funding Organization | National Natural Science Foundation of China [30123004]; Knowledge Innovation Program of the Chinese Academy of Sciences [KSCX2-SW-125] ; National Natural Science Foundation of China [30123004]; Knowledge Innovation Program of the Chinese Academy of Sciences [KSCX2-SW-125] ; National Natural Science Foundation of China [30123004]; Knowledge Innovation Program of the Chinese Academy of Sciences [KSCX2-SW-125] ; National Natural Science Foundation of China [30123004]; Knowledge Innovation Program of the Chinese Academy of Sciences [KSCX2-SW-125] |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.ihb.ac.cn/handle/152342/7518 |
| Collection | 期刊论文 |
| Corresponding Author | Chen, YF, Chinese Acad Sci, Inst Hydrobiol, 7 Donghu S Rd, Wuhan 430072, Peoples R China |
| Affiliation | 1.Chinese Acad Sci, Inst Hydrobiol, Wuhan 430072, Peoples R China 2.Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China |
| Recommended Citation GB/T 7714 | Hao, FuHua,Chen, YiFeng,Chen, YF, Chinese Acad Sci, Inst Hydrobiol, 7 Donghu S Rd, Wuhan 430072, Peoples R China. 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,&Chen, YF, Chinese Acad Sci, Inst Hydrobiol, 7 Donghu S Rd, Wuhan 430072, Peoples R China.(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. |
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