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Recovery of the western rock lobster, Panulirus cygnus, from emersion and handling stress: the effect of oxygen concentration during re-immersion
Citation
Crear, BJ and Forteath, GNR, Recovery of the western rock lobster, Panulirus cygnus, from emersion and handling stress: the effect of oxygen concentration during re-immersion, Journal of Shellfish Research, 20, (3) pp. 921-929 . ISSN 0730-8000 (2001) [Refereed Article]
Abstract
The effect of dissolved oxygen concentrations (110-120, 90-100, 70-80, 50-60, 30-40 and 10-20% saturation) on recovery of Panulirus cygnus from a period of activity/emersion was investigated. Biochemical disturbances induced in P. cygnus by emersion and handling included a large decrease in the hemolymph pH (0.7 units) and an increase in the hemolymph lactate concentration (2.44 mmol L-1). Re-immersion resulted in very high rates of oxygen consumption (up to 2.5 times the pre-emersion rate), elevated hemolymph glucose (1.1-4.5 mmol L-1) and further increases in hemolymph lactate (2.7-11.1 mmol L-1), with actual concentrations dependent on the dissolved oxygen concentration. Water oxygen concentrations of 50-60% saturation or less slowed the rate of recovery; all lobsters recovering in water with 10-20% oxygen saturation died within 12 hours. Based on the rate of recovery of physiological parameters, lobsters should be allowed to recover for a minimum of eight hours between stress episodes, whilst maintaining an oxygen concentration of 70-80% saturation or above.
Item Details
Item Type: | Refereed Article |
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Research Division: | Agricultural, Veterinary and Food Sciences |
Research Group: | Fisheries sciences |
Research Field: | Fish physiology and genetics |
Objective Division: | Animal Production and Animal Primary Products |
Objective Group: | Fisheries - wild caught |
Objective Field: | Fisheries - wild caught not elsewhere classified |
UTAS Author: | Crear, BJ (Mr Bradley Crear) |
UTAS Author: | Forteath, GNR (Professor Nigel Forteath) |
ID Code: | 22703 |
Year Published: | 2001 |
Web of Science® Times Cited: | 6 |
Deposited By: | TAFI - Marine Research Laboratory |
Deposited On: | 2001-08-01 |
Last Modified: | 2011-11-16 |
Downloads: | 0 |
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