论文部分内容阅读
池水的透明度主要取决于水中泥沙、浮游生物和有机质的含量,也与池塘的底色有关。有经验的渔农都能根据池水的透明度和水色判别水质的肥瘦与好坏,从而采取有效的调控措施。因此,掌握池水的透明度绝不是鱼塘日常管理工作的小事,它关系到养殖生产的丰歉乃至成败。生产实践表明,在以鲢、鳙、白鲫为主养鱼的池塘,水的透明度一般要求在25厘米左右,如果超
The transparency of pond water depends mainly on the amount of sediment, plankton and organic matter in the water and also on the background of the pond. Experienced fishermen and peasants can determine the quality of the water quality according to the transparency and water color of the water so that effective control measures can be taken. Therefore, grasping the transparency of water is by no means the trivial matter of the daily management of fish ponds, and it is related to the abundance and success of breeding and production. Production practice shows that in silver carp, pomfret, white carp mainly fish ponds, the transparency of water is generally required at about 25 cm, if super