Effects of temperature and salinity on the standard metabolic rate (SMR) of the caridean shrimp Palaemon peringueyi

Allan, E Louise; Froneman, P William; Hodgson, Alan N

Title: Effects of temperature and salinity on the standard metabolic rate (SMR) of the caridean shrimp Palaemon peringueyi
Creator: Allan, E Louise
Creator: Froneman, P William
Creator: Hodgson, Alan N
Date Issued: 2006
Date: 2006
Type: Article
Identifier: vital:6831
Identifier: http://hdl.handle.net/10962/d1007567
Description: The standard metabolic rate (SMR) of the caridean shrimp Palaemon peringueyi to changes in temperature (15–30 °C), salinity (0–45‰) and a combination thereof was investigated. The rate of oxygen consumption of the shrimp was determined using a YSI oxygen meter. At a constant salinity of 35‰ the respiration rate of P. peringueyi increased with an increase in temperature and ranged between 0.260 and 0.982 μl O[subscript 2] mg wwt[superscript −1] h[superscript −1]. The Q[subscript 10] value over the temperature range 15–25 °C was estimated at 3.13. At a constant temperature of 15 °C the respiration rate of P. peringueyi also increased with an increase in salinity and ranged between 0.231 and 0.860 μl O[subscript 2] mg wwt[superscript −1] h[superscript −1]. For combination experiments the absence of any significant difference in the respiration rate of P. peringueyi at the four temperatures over the salinity range 15–35‰ suggests that the shrimp is well adapted to inhabiting environments characterised by variations in salinity and temperature such as those encountered within the middle and lower reaches of permanently open estuaries with substantial freshwater inflow. On the other hand, the total mortality of the shrimp recorded at salinities < 5‰ at all four temperatures suggests that the upper distribution of the shrimp may reflect physiological constraints. Similarly, the increase in the respiration rate of the shrimp at the four temperatures at salinities > 35‰ suggests that the shrimp may experience osmotic stress in freshwater deprived permanently open and intermittently open estuaries where hypersaline conditions may develop.
Format: 9 pages
Format: pdf
Publisher: Journal of Experimental Marine Biology and Ecology
Language: English
Relation: Allan, E. L., Froneman, P.W. and Hodgson, A.N. 2006. Effects of temperature and salinity on the standard metabolic rate (SMR) of the caridean shrimp Palaemon peringueyi. Journal of Experimental Marine Biology and Ecology, 337(1):103-108. Available: http://dx.doi.org/10.1016/j.jembe.2006.06.006.

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Hodgson, Alan N (Prof)

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RU Department of Zoology and Entomology

SDG 14. Life Below Water

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