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野杂鱼类是指那些个体小,经济价值低,能自然繁殖的鱼类。较常见的有(?)条、鳑鮍、麦穗鱼、棒花鱼、小鲫以及杜父鱼科中的某些种类。它们在池塘中消耗水体溶氧,与家鱼争空间、夺饵料,影响家鱼的正常摄食与生长,增加饵料消耗,影响池塘的经济效益的提高。控制这些野杂鱼类,可采取清除和生物抑制两种方法。一、清除方法药物清除,用生石灰、漂白粉、茶枯等结合清塘一次进行;化肥清除,长期采用碳铵与磷肥混施,利用碳铵水解释放出的离子氨和非离子氨形成的氨水,能使野杂鱼苗致死;用丝网等网具捕捞清除。
Wild fish refers to those small individuals, low economic value, can naturally reproduce the fish. Some of the more common species are ()), 鳑 鲏, 麦 穗,, barramundi, small crucian carp and some species from the family. They consume water dissolved oxygen in ponds, fight for space with fish, take bait material, affect the normal feeding and growth of fish, increase food consumption and affect the economic benefits of the pond. Control of these wild fish, can take two methods of removal and biological inhibition. First, the removal method of drug removal, with lime, bleaching powder, tea and other combinations with a clear pond; fertilizer removal, long-term use of ammonium bicarbonate and phosphate fertilizer mix, the use of ammonium bicarbonate release of ionic ammonia and non-ionic ammonia to form ammonia, Can make wild miscellaneous fish fry; fishing net with wire mesh and remove.