The respiratory requirements of Macrobrachium acanthurus (Weigman) at different temperatures and salinities

Citation

Gasca Levya JFE, Martinez-Palacios CA & Ross L (1991) The respiratory requirements of Macrobrachium acanthurus (Weigman) at different temperatures and salinities. Aquaculture, 93 (2), pp. 191-197. https://doi.org/10.1016/0044-8486%2891%2990217-U

Abstract
The oxygen consumption rate of the freshwater prawn, Macrobrachium acanthurus (Weigman), was determined using closed-circuit respirometry at temperatures of 20, 25, 30 and 35°C and salinities of 0, 10 and 20‰, over a weight range of 0.33 to 34.0 g. Oxygen consumption rates ranged from 100 to 9500 mg/kg per h, increased proportionally with temperature and were inversely proportional to body weight. Respiratory rates decreased with increasing salinity, this effect being more marked at lower temperatures and virtually absent at 35°C. The data suggest that M. acanthurus has the ability to osmoregulate. Experiments in which the prawns were allowed to deplete the oxygen concentration showed that this species is an oxygen conformer, with a very limited ability to withstand anoxia.

Journal
Aquaculture: Volume 93, Issue 2

People

Professor Lindsay Ross

Emeritus Professor, Institute of Aquaculture