我国大麻哈鱼资源及其保护途径

大麻哈鱼是我国黑龙江和吉林两省特产的经济鱼类，近２０年来资源明显衰退．本文根据多年一系列实地调查研究，论述了目前我国境内３种大麻哈鱼的自然分布、经济价值、资源特征与现状，分析了资源衰退原因及其开发利用中所存在的问题，初步提出资源保护途径。

The Resource or Oncorhynchus Stock and the Ways of Its Protection in China

Oncorhynchus stock are the special product economic fish of the Heilongjiang and Jilin province in China, but its resource has been remakable recession in the last twenty years. In this paper,according to the investigation over a long period of time, natural distribution,economic value,charcteristics and present situation of chinese oncorhynchus reource were discussed at the moment, the causes of its resource recession as wall as problems existed in resource utilization were studied,and the ways of protection on it were poseed tentatively.