快速清除野杂鱼

• 作 者: 张庆
• 机 构: 山东成武县水产局 274200
• 出 处: 齐鲁渔业
• 发表日期: 2005年02期
• 关键词: 野杂鱼 鱼苗 网箱 家鱼 渔业生产 筛子 体型 滤过 需氧量 青鱼

每年初春投放鱼苗时,往往混入一些野杂鱼苗,和放养鱼苗争食、争氧,甚至生长过程中吃食鱼苗,很大程度上影响了放养鱼苗的生长。在渔业生产中,可使用以下方法清除它们:1 用筛过滤 通常野杂鱼比家鱼体型大,将鱼苗放进网箱,用筛眼略大于家鱼的筛子将鱼苗滤过,不能通过的

When the fry is put on in early spring each year, it is often mixed with some wild fry, and stocking fry for food, oxygen, and even the growth process of eating fry, largely affected the stocking of fry growth. In fishery production, they can be removed by the following methods: 1 Filtering with sieve Usually wild trash than the size of large fish, the fry into the cage, with a sieve slightly larger than the screen of fish fry filtration, can not pass