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本文报道青蟹Scylla serrata(Forskal)实验生态学的研究结果。 青蟹的稚蟹、成蟹在实验室饲养了两年,主要吃贝类,兼食少量鱼虾和藻类。适温为18—30℃,12—14℃休眠,11℃以下为致死温度。稚蟹在适温范围内,随着水温的升高,脱壳频繁,生长迅速,一年可达性成熟,中间脱壳14次,15龄,每平方米水面放养稚蟹10—15只或成蟹5—7只为宜。 根据青蟹在自然海区的环境条件,采用露空法,便能正常产卵受精。
This article reports the results of the experimental ecology of Scylla serrata (Forskal). Crab crab, crab in the laboratory for two years, mainly to eat shellfish, and eat a small amount of fish and algae. Suitable temperature 18-30 ℃, 12-14 ℃ dormancy, 11 ℃ below the lethal temperature. In the suitable temperature range, with the increase of water temperature, the juvenile crabs hatched frequently, grew rapidly, reached the sexual maturity in one year, the middle shelling 14 times, the 15th instar, the laying of 10-15 larvae per square meter of water or Crab 5-7 only suitable. According to the natural conditions of the crab in the natural sea, the use of open air method, we can normal spawning fertilization.