| 网湖银鱼的繁殖、食性与生长 |
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| 引用本文： | 殷国俊,曹克驹,余志堂,龚世园.网湖银鱼的繁殖、食性与生长[J].湖泊科学,1997,9(1):63-70. |
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| 作者姓名： | 殷国俊 曹克驹 余志堂 龚世园 |
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| 作者单位： | 华中农业大学水产学院!武汉430070(殷国俊，曹克驹，龚世园)，水利部中国科学院水库渔业研究所!武汉430073(余志堂) |
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| 摘 要： | 研究了网湖太湖新银鱼和寡齿新银鱼的繁殖，食性和生长等生物学特征，并就网湖银鱼增殖的措施进行了探讨。两种银鱼的副性征出现时间分别为１０月和１１月。平均绝对怀卵量为１５０６粒和５６９粒。
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| 关 键 词： | 银鱼 繁殖 食性 生长 网湖 湖泊养鱼 |
| 收稿时间： | 1995/5/22 0:00:00 |
| 修稿时间： | 1996/4/29 0:00:00 |
The reproduction, feeding habits and growth of salangid fishes Neosalanx taihuensis and N. Oligodontis in wanghu lake |
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| Yin Guojun,Cao Keju,Yu Zhitang and Gong Siyuan.The reproduction, feeding habits and growth of salangid fishes Neosalanx taihuensis and N. Oligodontis in wanghu lake[J].Journal of Lake Science,1997,9(1):63-70. |
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| Authors: | Yin Guojun Cao Keju Yu Zhitang and Gong Siyuan |
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| Institution: | College of Fisheries, Huazhong Agricultural University, Wuhan, 430070,College of Fisheries, Huazhong Agricultural University, Wuhan, 430070,Institute of Reservior Fisheries Ministry of Water Resources and Chinese Academy of Sciences Wuhan, 430073 and College of Fisheries, Huazhong Agricultural University, Wuhan, 430070 |
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| Abstract: | Thc present paper deals with the reproduction, feeding habits and growth of salangid fishes Neosalanx taihuensis and N. oligthentis in the Wanghu Lake, Hubei Province. The survey was conducted from 1992 to 1993 and the results are summarized as follows. The male secondary sex-ual characters of N. taihuensis emerge in October and those of N. olndontis in November. Both species spawn in batches. The N. taihuensis spawns from March to June, with an average abso lute individual fecundity of 1 506 eggs per female and dominant body-length groups of 56.0 mm to 64. 9mm;and for N. oligodontis, from March to May, 569 eggs per female and 35. 0mm to 42. 9mm,respectively. Both species feed mainly on Cladocera and Copepoda, with fceding inten-sities peaking twice, from October to November and from February to April. The juvenilcs grow fast before June and the adults grow fast between Septembcr and November. Based on the stud-ies, some propagation measurcs are suggested. |
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| Keywords: | Salangid fish reproduction fecding habits growth Wanghu Lake |
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