Relationship between some physic-chemical characteristics of the water with different densities of warm water culture fishes

Subject Areas : New Technologies in Aquaculture Development

zeid  ahmadi ¹ (عضو هیأت علمی گروه شیلات، واحد آزادشهر، دانشگاه آزاد اسلامی، آزادشهر، ایران)

Received: 2022-05-17 Accepted : 2022-05-17 Published : 2022-04-21

Keywords: Density, Keywords: Physic-chemical characteristics, Fish ponds, Warm water culture fishes,

Abstract :

This study investigated the relationship between some physic-chemical characteristics of the water ponds with different density of warm water culture fishes. We selected 10 fish ponds with different densities of warm water culture fishes, including densities of 2200, 2400, 2600, 2920 and 2950 (part of a hectare). Water characteristics such as Nitrite, pH, Ammonium, Phosphorus, Dissolved Oxygen, Salinity, Ammonia Nitrate, Transparency and Alkalinity were measured. These parameters were estimated by standard methods. One way ANOVA of data showed significant difference between the different densities in most water quality parameters, there was no significant difference between the mean phosphorus, salinity, hardness, transparency and ammonium concentrations. Based on these results, the density had effect on water parameters.