کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5593424 | 1571080 | 2017 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Effect of water temperature on reproductive performance and offspring quality of rare minnow, Gobiocypris rarus
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کلمات کلیدی
موضوعات مرتبط
علوم زیستی و بیوفناوری
علوم کشاورزی و بیولوژیک
علوم کشاورزی و بیولوژیک (عمومی)
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![عکس صفحه اول مقاله: Effect of water temperature on reproductive performance and offspring quality of rare minnow, Gobiocypris rarus Effect of water temperature on reproductive performance and offspring quality of rare minnow, Gobiocypris rarus](/preview/png/5593424.png)
چکیده انگلیسی
Water temperature plays a significant role in the reproductive processes of temperate fishes. In the present study, the effects of water temperature on the reproductive performance and offspring quality of rare minnow (Gobiocypris rarus) were evaluated by cultured parent fish at different temperature (18ï½30Â â) in a 2-month trial. The results revealed that rare minnows could spawn continuously within the range from 18Â â to 30Â â, and these at 24Â â and 27Â â spawned every 3-4 days. Batch size of rare minnow increased with increasing water temperature, while egg production increased with increasing water temperature and then decreased at 30Â â. High water temperature (30Â â) had significantly adverse effects on fertilization rate and hatching rate (P<0.05). It was found that the oocyte growth at 18Â â, 21Â â, and 30Â â were slower than those at 24Â â and 27Â â. Histologic analysis further showed that low temperature (18Â â and 21Â â) slowed down vitellogenesis and oocyte maturation, while high temperature (30Â â) had suppressive effects on oocyte maturation and ovulation. Based on present results, it was concluded that 24-27Â â was optimal breeding temperature for rare minnows and water temperature higher than 30Â â resulting from climate change would pose a threat to its wild populations.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Thermal Biology - Volume 67, July 2017, Pages 59-66
Journal: Journal of Thermal Biology - Volume 67, July 2017, Pages 59-66
نویسندگان
Si Luo, Shiyu Jin, Liangxia Su, Jianwei Wang,