硬骨鱼类中有些种类具有雌雄同体的现象,即性腺同时存在于卵巢和精巢组织,这种雌雄同体现象在一些鱼类中甚至可终生存在,并能自行受精,如(鱼旨)科鱼类Serranuscabrilla等。另外有些鱼类虽然在其生活史中同时存在卵巢和精巢,但卵巢和精巢并不同时成熟,不同年龄段表现为不同的性别,有一个性转换的过程,这种过程可以分为两种 Some types of bony fishes have a hermaphroditic phenomenon, in which the gonads exist both in the ovary and in the testes. Such hermaphroditism can persist in some species of fish and can self-fertilize, for example Serranuscabrilla . In addition, although some fish in the life history of both ovarian and testis, but the ovary and testis are not mature at the same time, different ages showed different gender, there is a process of sexual conversion, this process can be divided into two