Effect of temperature and salinity on respiratory rate and development of early larval stages of Macrobrachium acanthurus (Wiegmann, 1836) (Decapoda, Palaemonidae)

• Published in: Comparative biochemistry and physiology. A, Comparative physiology Vol. 118; no. 3; pp. 871 - 876
• Main Authors: Ismael, D., Moreira, G.S.
• Format: Journal Article
• Language: English
• Published: Elsevier B.V 01-11-1997
• Subjects: Brackish; Crustacea; crustacean larvae; freshwater shrimp; Macrobrachium acanthurus; Marine; Palaemonidae; respiration; salinity; survival; temperature; Crustacea; Palaemonidae; salinity; crustacean larvae; survival; temperature; freshwater shrimp; respiration; Macrobrachium acanthurus
• ISSN: 0300-9629
• DOI: 10.1016/S0300-9629(97)00016-9

Macrobrachium acanthurus larvae were reared at different salinity and temperature combinations (0, 7, 14, 21, 28 and 35‰S at 15, 20, 25 and 30°C). The survival and respiratory rate were measured for zoea I, II, III and IV. The oxygen consumption rates were measured at 25°C in all tested salinities, using a Warburg respirometer. Larvae reared in fresh water died at stage I in all tested temperatures. The highest survival rates were obtained at 25 and 30°C within a range of 14–21‰S. The metabolic rate-salinity (M-S) curves for all zoeae studied showed lower values either in 14 (zoeae II and III) or 21‰S (zoeae I and IV). However, values were not significantly different for zoeae III and IV, which showed to be more salinity independent.