Unselective fishing methods and fry collection during the spawning season compromise the sustainability of the local fisheries industry 一网打尽的捕鱼方式,以及在产卵期间采捕鱼苗,均会削弱本地渔业的可持续发展。
In spawning season , the oviduct differentiated evidently into three parts : the fimbriase of the oviduct , the middle main oviduct and the uterine part 产卵期输卵管明显分成伞部,中段和直段,其末端以尖端突入泄殖腔。 3
The temperature of creek segments down from dam no . 2 has exceeded the upper survival limit of juvenile salmons . the spawning season temperature of these segments also tends to surpass normal reproduction temperature range 二号坝以下溪段七、八月的夏季高温已到达幼鲑耐受极限,生殖季节水温亦偏高,为不适于栖息之环境。
It s a species of large squid with a bit brown color . the spawning season is from every december to the next january , and swim to the yellow sea after may , in july and august , it come to the area of bo sea , and continue to move to the east from september 鱼体大,内壳角质透明,棕黄色,产卵期在12月至竖年1月, 5 - 6月进入黄海中部, 7 - 8月在渤海湾一带, 9月东移, 12月以后产卵,力衰死亡。