【摘要】 <正> 鲍是珍贵的海产软体动物,软体部非常发达,肉质细嫩,味道鲜美,誉为海味之冠,其贝壳可作中药,称石决明,为海产药用动物的重要种类。 鲍属广泛分布于太平洋、大西洋、印度洋,约90种。在北美太平洋沿岸,日本沿岸和澳洲沿岸鲍的种类与数量比较丰富。我国的广东、福建、台湾、山东和辽宁等省沿海也有更多还原

【Abstract】 The abalone,Haliotis discus hannai Ino is distributed in the Yellow Sea (Dalian,Changhan,Changhai and Tsingtao),Korea and Sea of Japan.Parent abalones collected from Dalian in October-November,1973 and transplanted to Dongshan,Fujian,were for the first time successfully induced to reproduce in the south.The reproductive period takes place in April-May.In the Yellow Sea,it is in August,at water temperatures of 20-24℃.In the Sea of Japan,it takes place in September,at water temperatures of 20℃.The fertilized eggs are spherical,with a diameter of 0.23mm.(including the egg membrane),the yolk measuring 0.18mm.The division of the egg is total,unequal and spiral.The sequence of the embryonic development of the zygote is summarized as follows:Larvae and juveniles smaller than 1 cm take Navicula sp.,Amphora sp.,Nitzschia closterium,Achnanthes orientalis,and Platymonas helgolandica var.tsingtaoensis as foods.Juveniles larger than 1 cm are able to eat the common algae.更多还原