摘要
研究了温度、盐度、pH值的变化对曼氏无针乌贼幼体成活率和活力的影响.结果表明,曼氏无针乌贼幼体的生存盐度为11.73～31.43,适宜盐度为19.61～26.18;生存水温为14～30℃,适宜水温为22～28℃;生存pH值为6.0～9.5,适宜pH值为7.5～8.5.说明环境因子变化对幼体存活有较大影响.乌贼幼体对渐变的适应性强,幼体成活率渐变大于突变,但温、盐度的耐受值宽度并未增大.
An experiment was conducted to investigate the tolerance of Sepiella maindroni larvae to water temperature, salinities and pH. The results show that Sepiella maindroni larvae can tolerate water salinities from 11.73 to 31.43,with the optimal water salinities ranging from 19.61 to 26.18; The Sepiella maindroni larvae can tolerate a water temperature from 14℃ to 30℃ ,with the optimal water temperatures ranging from 22℃ to 28℃ ; The optimal pH ranges from 7.5 to 8.5,with pH for the survival of Sepiella maindroni larvae from 6.0 to 9.5. Therefore, the changes of envirorunental factors on the development of the Sepiella maindroni larvae are important. Gradual change of environment is better than sudden change.
出处
《湛江海洋大学学报》
CAS
2005年第4期39-43,共5页
Journal of Zhanjiang Ocean University
基金
宁波市海洋与渔业局项目(200493)
关键词
曼氏无针乌贼
幼体
环境因子
盐度
温度
pH
Sepiella maindroni
larvae
environmental factors
salinity
temperature
pH
