我区幅员辽阔,水面众多,鱼类品种纷繁,各种经济鱼类及虾类多达四十余种。为了更好地开发利用渔业资源,现对出产在寒冷地区水域中的几种著名渔产的生活、生殖习性及生物学特点作一简介。一、大麻哈鱼大麻哈鱼是一种洄游性鱼类。原栖息生活于北太平洋中,每当秋季性腺成熟时节,便成群结队由鄂霍次克海峡经库 My area is vast in size with numerous surfaces and numerous fish species. As many as 40 species of economic fish and shrimp are available. In order to make better use of fishery resources, a brief introduction is made on the living, reproductive habits and biological characteristics of several well-known fisheries produced in the cold waters. First, salmon salmon salmon is a migratory fish. The original habitat in the North Pacific Ocean, every time the fall of the gonadal maturity season, will be in droves by the Okhotsk Strait Library