The reproductive traits of brown trout (Salmo trutta fario L.) from the Yadong River, Tibet
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 sexe...
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ftchinacadsciihb:oai:ir.ihb.ac.cn:152342/7518 2023-05-15T15:33:08+02:00 The reproductive traits of brown trout (Salmo trutta fario L.) from the Yadong River, Tibet Hao, FuHua Chen, YiFeng Chen, YF, Chinese Acad Sci, Inst Hydrobiol, 7 Donghu S Rd, Wuhan 430072, Peoples R China 2009-09-01 http://ir.ihb.ac.cn/handle/152342/7518 https://doi.org/10.1007/s10641-008-9363-5 英语 eng ENVIRONMENTAL BIOLOGY OF FISHES Hao, FuHua; Chen, YiFeng.The reproductive traits of brown trout (Salmo trutta fario L.) from the Yadong River, Tibet,ENVIRONMENTAL BIOLOGY OF FISHES,2009,86(1):89-96 http://ir.ihb.ac.cn/handle/152342/7518 doi:10.1007/s10641-008-9363-5 SaL.o Trutta Fario L Reproduction Tibet Ecology Marine & Freshwater Biology Science & Technology Life Sciences & Biomedicine Environmental Sciences & Ecology MACROSTIGMA DUMERIL 1858 INTERPOPULATION VARIATION SPAWNING CHARACTERISTICS ATLANTIC SALMON EGG NUMBER TRADE-OFF STREAM GROWTH SIZE AGE Article 期刊论文 2009 ftchinacadsciihb https://doi.org/10.1007/s10641-008-9363-5 2019-07-01T11:26:30Z 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. Article in Journal/Newspaper Atlantic salmon Institute of Hydrobiology, Chinese Academy of Sciences: IHB OpenIR Environmental Biology of Fishes 86 1 89 96 |
institution |
Open Polar |
collection |
Institute of Hydrobiology, Chinese Academy of Sciences: IHB OpenIR |
op_collection_id |
ftchinacadsciihb |
language |
English |
topic |
SaL.o Trutta Fario L Reproduction Tibet Ecology Marine & Freshwater Biology Science & Technology Life Sciences & Biomedicine Environmental Sciences & Ecology MACROSTIGMA DUMERIL 1858 INTERPOPULATION VARIATION SPAWNING CHARACTERISTICS ATLANTIC SALMON EGG NUMBER TRADE-OFF STREAM GROWTH SIZE AGE |
spellingShingle |
SaL.o Trutta Fario L Reproduction Tibet Ecology Marine & Freshwater Biology Science & Technology Life Sciences & Biomedicine Environmental Sciences & Ecology MACROSTIGMA DUMERIL 1858 INTERPOPULATION VARIATION SPAWNING CHARACTERISTICS ATLANTIC SALMON EGG NUMBER TRADE-OFF STREAM GROWTH SIZE AGE 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 |
topic_facet |
SaL.o Trutta Fario L Reproduction Tibet Ecology Marine & Freshwater Biology Science & Technology Life Sciences & Biomedicine Environmental Sciences & Ecology MACROSTIGMA DUMERIL 1858 INTERPOPULATION VARIATION SPAWNING CHARACTERISTICS ATLANTIC SALMON EGG NUMBER TRADE-OFF STREAM GROWTH SIZE AGE |
description |
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. |
format |
Article in Journal/Newspaper |
author |
Hao, FuHua Chen, YiFeng Chen, YF, Chinese Acad Sci, Inst Hydrobiol, 7 Donghu S Rd, Wuhan 430072, Peoples R China |
author_facet |
Hao, FuHua Chen, YiFeng Chen, YF, Chinese Acad Sci, Inst Hydrobiol, 7 Donghu S Rd, Wuhan 430072, Peoples R China |
author_sort |
Hao, FuHua |
title |
The reproductive traits of brown trout (Salmo trutta fario L.) from the Yadong River, Tibet |
title_short |
The reproductive traits of brown trout (Salmo trutta fario L.) from the Yadong River, Tibet |
title_full |
The reproductive traits of brown trout (Salmo trutta fario L.) from the Yadong River, Tibet |
title_fullStr |
The reproductive traits of brown trout (Salmo trutta fario L.) from the Yadong River, Tibet |
title_full_unstemmed |
The reproductive traits of brown trout (Salmo trutta fario L.) from the Yadong River, Tibet |
title_sort |
reproductive traits of brown trout (salmo trutta fario l.) from the yadong river, tibet |
publishDate |
2009 |
url |
http://ir.ihb.ac.cn/handle/152342/7518 https://doi.org/10.1007/s10641-008-9363-5 |
genre |
Atlantic salmon |
genre_facet |
Atlantic salmon |
op_relation |
ENVIRONMENTAL BIOLOGY OF FISHES Hao, FuHua; Chen, YiFeng.The reproductive traits of brown trout (Salmo trutta fario L.) from the Yadong River, Tibet,ENVIRONMENTAL BIOLOGY OF FISHES,2009,86(1):89-96 http://ir.ihb.ac.cn/handle/152342/7518 doi:10.1007/s10641-008-9363-5 |
op_doi |
https://doi.org/10.1007/s10641-008-9363-5 |
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Environmental Biology of Fishes |
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86 |
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1 |
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89 |
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96 |
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1766363606736175104 |