High Nitrate Levels Toxic To Shrimp

摘要

Studies by the authors determined that under culture with water at one-third of ocean salinity, shrimp survival and growth were significantiy impacted at levels of nitrate above 220 mg/L. The nitrate may have reduced feeding efficiency, depressed metabolism and impaired endocrine function. Nitrate toxicity is more of an issue for shrimp raised in lower-salinity waters. Shrimp exposed to high concentrations of nitrate exhibit shorter antennae, gill abnormalities and hepatopancreas lesions.