Study on the Morphological Characteristics of Embryonic Development of Premnas biaculeatus
2015; Chinese Academy of Agricultural Sciences; Linguagem: Inglês
ISSN
0517-6611
Autores Tópico(s)Food Industry and Aquatic Biology
Resumo[Objective]The research aimed to understand the development characteristics and physiological and ecological conditions of Premnas biaculeatus.[Method] The development process of P.biaculeatus oosperm under the laboratory conditions of(26 + 1) ℃,salinity of(25 +1) was studied.[Result] The oosperm of P.biaculeatus was oval.According to the morphological characteristics,the embryonic development process was divided into 10 stages: per-cleavage stage,cleavage stage,blastula stage,gastrul stage,neurlua stage,somite stage,turnover stage,angiogenesis stage,organ formation stage and hatching stage.The long diameter of oosperm was 1.99mm,the color of oosperm in the development process was gradually deepened.The oosperm of P.biaculeatus took about 154h to complete the whole incubation period at water temperature of 26 ℃.The whole length of newly-hatched larvae was(3.6 ± 0.1)mm.[Conclusion]The research could provide theoretical basis for the artificial production of P.biaculeatus.
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