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第三讲养鱼场的几种类型由于建造养鱼场的自然条件、目的、要求不同,养鱼场的性质又可分为若干类型。 1.江河、湖泊养鱼场:这种养鱼场大多利用港湾、湖汉的大片滨湖荒地(或沼泽地)来开挖鱼池。其任务,主要是培养大规格、优质、对路的鱼种,为投放江河、湖泊的成鱼养殖和放流服务。故这种养鱼场(亦称“鱼种场”)面积不大,一般为被利用的江河、湖泊(养殖成鱼)的水面3—5％。这种养鱼场虽然规模不大、但设有亲鱼池、鱼苗池、鱼种池,或成鱼捕捞、鱼品的简易加工等各个项目。 2.水库养鱼场:其性质和江河、湖泊养鱼场差不多,利用库湾附近的荒地,或者在坝基下面建立
Lecture 3: Several Types of Fish Farms Due to the different natural conditions, purposes and requirements of fish farms, the nature of fish farms can be divided into several types. 1. Rivers and lakes Fish farms: Most of these farms utilize the vast lakeshore wasteland (or marshes) of the harbor and lake to excavate fish ponds. Its mission is to cultivate large-scale, high-quality, on the road species, for the release of rivers and lakes into adult fish breeding and discharge services. Therefore, this fish farm (also known as “fish farm”) is not large in area, and is generally 3-5% of the surface of the rivers and lakes to be used for fish breeding. Although this kind of fish farm is small in scale, it has various items such as pro-fish ponds, fry ponds, fish ponds, or adult fish fishing and simple processing of fish products. 2. Reservoir fish farm: its nature and rivers, lakes, fish farms, the use of wasteland near the Bay, or in the dam foundation to establish