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盐度对杂交东方鲀存活和摄食的影响
引用本文:张福崇,万玉美,方笑,赵海涛.盐度对杂交东方鲀存活和摄食的影响[J].河北渔业,2012(12):2-6.
作者姓名:张福崇  万玉美  方笑  赵海涛
作者单位:1. 河北省海洋与水产科学研究院 ,河北秦皇岛066200
2. 河北农业大学海洋学院 ,河北秦皇岛 066200
基金项目:基金项目:河北省科技支撑项目(08240503D)
摘    要:采用盐度骤变和渐变的方法,研究了盐度0、5‰、10‰、15‰、20‰、25‰、30‰、35‰、40‰、45‰、50‰、55‰、60‰共13个梯度对菊黄东方鲀(♀)×红鳍东方鲀(♂)杂交F1代存活和摄食的影响。研究表明,盐度从30‰骤变到15‰~50‰时,杂交F1存活率最高,显著高于盐度0、5‰、10‰、55‰和60‰梯度的存活率(P<0.05),其中盐度10‰的梯度中杂交F1代存活率约为33.3%,而盐度0、5‰、55‰和60‰梯度的存活率均低于1%;盐度5‰~50‰为杂交F1可摄食盐度,其中20‰~35‰是最佳摄食盐度。盐度渐变时,盐度5‰~50‰梯度中杂交F1代存活率最高,显著高于盐度0、55‰和60‰梯度的存活率(P<0.05),其中盐度0的梯度中杂交F1代存活率最低,约为12%;盐度0~60‰为杂交F1可摄食盐度,其中盐度20‰、25‰、30‰、35‰和40‰时,杂交F1摄食率无显著差异,在盐度30‰时摄食量和摄食率均达到最大。表明,菊黄东方鲀(♀)×红鳍东方鲀(♂)杂交F1代是广盐性鱼类,对盐度适应能力较强,而且适应盐度渐变的能力强于盐度骤变。

关 键 词:菊黄东方鲀  红鳍东方鲀  杂交  盐度  摄食率  存活率

The effect of salinity on survival and feeding of hybrid puffer fish
ZHANG Fu-chong,WAN Yu-mei,FANG Xiao,ZHAO Hai-tao.The effect of salinity on survival and feeding of hybrid puffer fish[J].Hebei Fisheries,2012(12):2-6.
Authors:ZHANG Fu-chong  WAN Yu-mei  FANG Xiao  ZHAO Hai-tao
Institution:ZHANG Fu--chong WAN Yu--mei , FANG Xiao ,ZHAO Hai--tao (1. Hebei Ocean and Fisheries Science Research Institute, Qinhuangdao 066200, China; 2. Ocean College of Hebei Agricultural University, Qinhuangdao 066200, China)
Abstract:The study was conducted to assess the effects of salinity of survival and food intake of the crossbreed F1 between Fugu flavidus ( ♀ ) and Fugu rubripes ( ♂ ) by the mothod of acute and gradual changes in salinities of 0, 5‰, 10‰, 15‰, 20‰, 25‰, 30‰, 35‰, 40‰, 45‰, 50‰, 55‰ and 60‰. The results shows that, under acute changes in salinity, the survival rate of the crossbreed F1 in the salinity 15‰-50‰ was the higest and Significantly higher than salinity 0, 5‰, 10‰, 55‰ and 60‰ (P〈(0.05). The survival rate of the crossbreed F1 in the salinity 10 was 33.3% and these in the salinity 0, 5‰, 55‰ and 60‰ was less than 1%. The salinity of feeding of the crossbreed F1 was 5‰-50‰and the optimum salinity of feeding of the crossbreed F1 was 20‰-35‰. Under gradual changes in salinity, the survival rate of the crossbreed F1 in the salinity 5‰-50‰ was the higest and sig- nificantly higher than salinity 0, 55‰ and 60 ‰(P〈0.05), and that in salinity 0 was the lowest and about 12%. The salinity of feeding of the crossbreed F1 was 0-60‰, there are no significant differences in the feeding rate of the crossbreed F1 among the salinity 20‰, 25‰, 30‰, 35‰ and 40‰, and both food intake and feeding rate of the crossbreed F1 raised maximum at the salinity 30‰. The results observed that the crossbreed F1 between Fugu flavidus (♀) and Fugu rubripes ( ♂ ) was euryhaline fishes, their acclimatization salinity was very strong, and the crossbreed F1 could better ac- climatize themselves to gradual change than acute change salinities.
Keywords:Fugu flavidus  Fugu rubripes  crossbreed  salinity  survival rate  feeding rate
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