摘要
用网袋、塑料筒、网箱等不同器具对海湾扇贝进行海上保苗试验,保苗率分别可达到23.8%、28.3%和32.9%。网袋中贝苗的生长快于塑料筒快于网箱,在10~13.5℃条件下,平均日增长为20μm;13.5~17.5℃,平均日增长为30μm;17.5~19℃,平均日增长为140μm;19~22℃,平均日增长为80μm。作者认为,贝苗生长不仅与水温有关,而且与贝苗的不同生长阶段有关,在贝苗壳高为1.5~4.5mm这个阶段生长迅速。
The experiment on preserving seedlings of bay scallop(Argopecten irradians) was carried out, using net bag, plastic tube and net box. The preserving seedlings rates reached 23.8%, 28.3% and 32.9% respectively. The growth of seedlings is faster in the net bag than in plastic tube and net box.
The shell height grew with the rate of 20μm/day, 30μm/day, 140μm/day and 80μm/day respectively within the temperature ranges of 10-13.5℃, 13.5-17.5℃, 17.5-19.0℃ and 19.0-22.0℃.
The authors consider that the growth of seedlings is not only relative to the water temperature but also to the different growth stages. The growth of seedlings is quicker at the stage in which the shell height of seedlings ranges from 1.5mm to 4.5mm.
出处
《海洋湖沼通报》
CSCD
北大核心
1991年第4期79-87,共9页
Transactions of Oceanology and Limnology
关键词
扇贝
保苗
海湾
海上
bay scallop
technique for preserving seedling