自然小水体的面积大小不等,一般介于池塘与中型水体之间,因此它既有池塘的一定特性,又有中型水体的一些优越性。而且,它除了水面以外,还有滩头、陆地,具有综合开发以利用发展生态渔业的优越条件,这些都是池塘和中型水体难以相比的。我县共有自然小水体79211亩,约占全县水面的7.6％。1989年未发展生态养鱼前,亩平产量为40.9kg,亩平效益约100元左 Natural small water bodies vary in size and are generally between ponds and medium-sized bodies of water, so they have both the characteristics of a pond and the advantages of medium-sized bodies of water. Moreover, apart from the surface of the water, there are beachheads and terraces. It has the advantages of comprehensive development to take advantage of the development of ecological fisheries. These are difficult to compare with the medium-sized water bodies of ponds. A total of 79,211 acres of natural small waters in our county, accounting for 7.6% of the county’s surface water. Before the development of ecological fish farming in 1989, the yield per mu was 40.9kg, and the profit per mu was about 100 yuan