摘要
作者对引进的红罗非鱼进行了生物学特性、繁殖育种及海水驯养等方面的试验研究,结果得出:①亲鱼的怀卵量与体长呈正相关(关系式为:Y=124.78L—588.8),在北方地区每年产卵3—4次,产卵量为怀卵量的1/2;②水温25—30℃,11—18d受精卵孵出鱼苗;③红罗非鱼不仅可在淡水中生存,且在自然海水和半咸水中均能生存,是海水养殖的优良品种;④红罗非鱼同虾混养,可提高鱼虾成活率,增大养成规格。
The breedings, domestication and other biological characteristics of Red Java tilapia (Oreochormis) were studied in the experiment. The experiment results are: (1) The amount of eggs of the parent fish is in positive interrelation with the body length(L), Y=124.78L - 588.8. In the north part of China, one fish can spawn 3-4 times every year, releasing half of it's eggs each time. (2) The juvenile fish can be hatched out of the fertilized eggs in 11-18 days in 25-30℃. (3) Red Java tilapia can live not only in fresh water but also in sea water and semi-sea water. Therefor, it is a good strain for culture in saline water. (4) If cultured together with prawn, the survival rate and body size of both fish and prawn can increase.
出处
《海洋科学》
CAS
CSCD
北大核心
1989年第5期44-48,共5页
Marine Sciences
关键词
红罗非鱼
海水驯养
繁殖
育种
Red Java tilapia (Oreochormis.), Acclimation in saline water, Breeding good strains
