人工养殖条件下嘉庚蛸的生物学特性及繁育技术初探  

Biological Characteritics and Artificial Reproduction Technique of Octopus tankahkeei

作　　者：焦海峰[1,2] 尤仲杰[1,2] 包永波[3] 

机构地区：[1]宁波市海洋与渔业研究院 [2]宁波大学生命科学与生物工程学院宁波315211 [3]宁波大学生命科学与生物工程学院

出　　处：《动物学杂志》2005年第3期67-71,共5页Chinese Journal of Zoology

基　　金：浙江省自然科学基金资助项目 (No .14 0 2 0 39) ;浙江省科技厅资助项目 (No .0 2 110 32 6 9)

摘　　要：对人工养殖条件下嘉庚蛸(Octopustankahkeei)的基础生物学和繁育技术进行了初步研究。嘉庚蛸喜栖息于阴暗的场所,属昼伏夜出型,主要捕食一些活体的天津厚蟹(Helicetientsinensis)等。其个体产卵量非常低,为60～1 1 0粒头,平均仅85粒 头。繁殖季节,雌雄个体间存在交配行为,交配后精子贮藏在雌性的纳精囊中。受精卵分2～3批产出,成葡萄状悬挂于瓦罐底部,亲蛸(♀)具有护卵行为。受精卵约经过40～45d孵化出膜,为盘状卵裂,经过肉眼可见的“红珠”期、“黑珠”期、胚胎的逆转,最后孵化出幼体。Biological characteristics and artificial reproduction technique of Octopus tankahkeei are studied. Preferring darkness, it always habitats in rock in daytime and appears at night. After mating, sperm must travel from the spermatangia to be stored in the spermatheca of ovidual gland. The individual absolute fecundity varied from 60 to 110 eggs/ind, the average is 85 eggs/ind. Spawning season extends from April to July. The condition of female deteriorates dramatically after spawning, during parental care of the eggs. Females lay eggs in cluster and attach them into the bottom of crocks; development of eggs to hatchling in sea water takes 40-45 days at natural conditions. Towards the end of development, the egg capsules become longer and wider, due to an increase in the volume of embryo. No internal yolk remains at hatching, and the hatchings spends little time resting on the bottom.

关 键 词：嘉庚蛸 生物学 人工繁殖 胚胎发育 

分 类 号：S968.9[农业科学—水产养殖]