【摘要】 本文报导了黄海北部溯河鳗苗的种类和分布;鳗苗(日本鳗鲡)的生物学特性,包括耳石日龄鉴定、食性和生态适应力;鳗苗的溯河生态和资源量测算;最后就鳗鱼的产卵场、产卵期及白仔鳗溯河期问题进行了讨论。更多还原

【Abstract】 This paper deals with the species and distribution of elvers of Anguilla; bilo-logical aspects of elvers of Japanese eel, including determination of daily increments from otolith (sagitta), feeding habit, and ecological adaptability; ecology of upstream migration and estimation of resource amount of glass eel. On the problems of spawing ground, spaw-ing period of Japanese eel and the time of upsream migration of glass eel are also discussed.更多还原