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Relationship between meteorological conditions and natural reproduction behavior of the four famous Chinese carps

文献类型： 外文期刊

作者： Wang, Ke 1 ; Liao, Wengen 2 ; Li, Chong 2 ; Chen, Daqing 1 ; Liu, Shaoping 1 ; Duan, Xinbin 1 ;

作者机构： 1.Chinese Acad Fishery Sci, Yangtze River Fisheries Res Inst, Fishery Resource & Environm Key Field Stn Upper m, Minist Agr, Jinzhou 434000, Peoples R China

2.China Inst Water Resource & Hydropower Res, Water Environm Dept, Beijing 100038, Peoples R China

3.Chinese Acad Fishery Sci, Freshwater Fisheries Res Ctr, Wuxi 214081, Peoples R China

4.Chinese Acad Fishery

关键词： meteorological condition;spawning event;natural reproduction behavior

期刊名称：ENVIRONMENTAL BIOLOGY OF FISHES （ 影响因子：1.844； 五年影响因子：1.839 ）

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收录情况： SCI

摘要： Known as the four famous carps in China, black carp (Mylopharyngodon piceus), grass carp (Ctenopharyngodon idella), silver carp (Hypophthalmichthys molitrix) and bighead carp (Hypophthalmichthys nobilis) are commercially important fish species with a high production in China. To reveal the relationships between meteorological conditions and the natural spawning behavior of these fishes, we considered six meteorological factors (including wind, rainfall, temperature, air pressure, sunshine hours and humidity) and the weather conditions in 80 spawning events. The results showed that the spawning activities were more likely to be activated in consecutive rainy days or days when weather changed drastically, while the spawning activities showed no tendency for the weather type except consecutive rainy days. Our analyses also showed that the average rainfall in the initial spawning days is higher than that in the spawning time windows (the time from the earliest spawning activity to the latest spawning activity), while other meteorological elements remained at more or less the same values in both time periods; spawning activity tended to happen in days when the average air pressure was going down or the average temperature going up, while the other meteorological elements showed no consistent tendency.

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