摘要
通过对菲律宾蛤仔死亡状况及生态环境的调查，初步确定了温度、底质类型和底质中的硫化物是导致菲律宾蛤仔死亡的可能因子。死亡效应模拟试验采用正交设计对其进行组配，试验结果的方差分析表明，泥温F＝76．52＞F0.05（2，2）＝19．0，对死亡呈显著影响，而底质类型和底质中的硫化物F＜F0.05（2，2）＝19．0，对死亡无显著影响。当泥温达36℃左右时，每天效应3h．经过半个月、死亡率最高达44．3％，最低为34．5％。
This study on the effects of the ecological enwtonment on the mortality ofthe short-necked clam showed that the environmental causative factors were mainly temper-ature,bottom material and sulfide. varboce ahalysis of the test results showed that the sub-strate (mud )temperature (F = 76. 52>F0. 05 (2, 2) = l9. 0)hed significant influence on theclam mortality. Under 3hrs. each day of high temperature (ab0ut 36 C )the cl8m maxbommortality was 44. 5% (minhoun of 34. 5% )after half a month. The substrate and suifkle (F<Fo. os (2, 2) = 19. 0)had no significant influence on the clam mortality.
出处
《海洋水产研究》
CSCD
1997年第2期9-12,共4页
Marine Fisheries Research
基金
1995~1997年山东省科委基金
中国水产科学研究院科学基金
关键词
菲律宾蛤仔
死亡
模拟试验
高温
Short-necked clam Mortality Test simulation High temperature
