Effects of pH on survival, phosphorus concentration, adenylate energy charge and Na +–K + ATPase activities of Penaeus chinensis Osbeck juveniles

• Published in: Aquatic toxicology 2002-10, Vol.60 (1), p.75-83
• Main Authors: Wang, Wei-Na, Wang, An-Li, Chen, Li, Liu, Yuan, Sun, Ru-Yong
• Format: Article
• Language: English
• Subjects: Adenylate levels; Animal aquaculture; Animal productions; Animal, plant and microbial ecology; Animals; Applied ecology; Biological and medical sciences; Crustacea; Crustacea - physiology; Ecotoxicology, biological effects of pollution; Effects of pollution and side effects of pesticides on vertebrates; Energy Metabolism - physiology; Fundamental and applied biological sciences. Psychology; Gills - physiology; Hydrogen-Ion Concentration; Invertebrate aquaculture; Muscles - physiology; Na +–K + ATPase; Penaeus chinensis; Phosphorus; Phosphorus - analysis; Reptilia. Amphibia; Sodium-Potassium-Exchanging ATPase - drug effects; Sodium-Potassium-Exchanging ATPase - pharmacology; Survival Analysis
• ISSN: 0166-445X; 1879-1514
• DOI: 10.1016/S0166-445X(01)00271-5

Penaeus chinensis (Osbeck) juveniles were maintained for 14 days at pH 6.0, 7.0, 7.6, 8.0 and 8.5, respectively. The effects of pH on survival, phosphorus concentration, adenylate energy charge (AEC) and Na +–K + adenosine triphosphatase (ATPase) activities of prawns were investigated. The results showed that survival of P. chinensis was impaired at low and high pH levels. The total phosphate level and AEC in abdominal muscle increased with pH level in range of 6.0–7.6 reaching the maximum values at pH 7.6. Thereafter, the levels declined with increasing pH level in range of 7.6–8.5. The change of Na +–K + ATPase activity in gill of prawn was similar to that of total phosphorus content and AEC in muscle of prawn at different pH. The effect of pH on Na +–K + ATPase activity in the muscle was lower than on that in gill.