一、前言扩大湖泊的鱼类来源对提高湖泊的渔业产量具有十分重要的意义。根据湖北省湖泊养殖的经验,在一些与长江相通的撰泊中奋利用开闸“灌江”的办法,“倒灌”成鱼(排水期间江中鱼类上溯入湖)或“顺推”鱼苗(鱼苗随江水流入湖中),是增加鱼振主要措施之一。.几年来,“灌江”工作虽已在一些 I. INTRODUCTION Expanding the sources of fish in lakes is of great importance to increase the production of fisheries in lakes. According to the experience of lakes breeding in Hubei Province, some gateways that connect with the Yangtze River use the gate-filling method of “pouring the river”, “pouring” fish into the river (during the drainage period, the fish in the river go back into the lake), or “pushing the fish” (Fry with the river flows into the lake), is one of the main measures to increase fish vibration. In recent years, there has been some work on “irrigation”