将鱼种并入池塘越冬,既有利于越冬管理,以免落膘,又有利于腾出鱼池及时清整,为来年的鱼种生产早做准备,还有利予掌握鱼种的规格、品种、数量等情况,制定下年度的放养计划。因此,当水温降至10℃左右,鱼不怎摄食时,应抓紧搞好鱼种的并塘工作。一、越冬池的条件一是底泥不宜过厚,以5厘米左右为宜,过多的淤泥中,其沉积的有机质分解时需大量耗氧,造成池水溶氧不足。二是选择背风向阳、水面2—3亩的池塘为好。水面过小,水体理化缓冲力弱,不利高密度的鱼种活动;水面过大,不利拉网捕捞和施肥、投饵管理。三是池塘水深应达2米以上。适宜的 The integration of fish species into the pond overwintering will not only help overwintering management so as to avoid falling, but also help to clear the fish pond in time for preparation for species production in the coming year, as well as the specification, variety and quantity Etc., formulate the stocking plan for the next fiscal year. Therefore, when the water temperature dropped to about 10 ℃, the fish is not enough food, it should pay close attention to do a good job of fish and pond work. First, the conditions of winter pool First, the sediment should not be too thick, preferably about 5 cm, too much sludge, the sediment decomposition of organic matter required a lot of oxygen, resulting in insufficient dissolved oxygen in the pool. Second, select the leeward sunny, 2-3 acres of pond water as well. Water is too small, physical and chemical buffer weak water, unfavorable high-density species activities; surface is too large, adverse net fishing and fertilization, feeding management. Third, the water depth of the pond should reach more than 2 meters. suitable