Environmental hypoxia but not minor shell damage affects scope for growth and body condition in the blue mussel Mytilus edulis (L.)

Sanders, T, Widdicombe, S, Calder-Potts, R and Spicer, JI 2014 Environmental hypoxia but not minor shell damage affects scope for growth and body condition in the blue mussel Mytilus edulis (L.). Marine Environmental Research, 95. 74-80. https://doi.org/10.1016/j.marenvres.2013.12.013

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Abstract/Summary

The effects of short-term (7 d) exposure to environmental hypoxia (2.11 mg O-2 L-1; control: 6.96 mg O-2 L-1) and varying degrees of shell damage (1 or 2, 1 mm diameter holes; control: no holes) on respiration rate, clearance rate, ammonia excretion rate, scope for growth (SFG) and body condition index were investigated in adult blue mussels (Mytilus edulis). There was a significant hypoxia-related reduction in SFG (>6.70 to 0.92J g(-1) h(-1)) primarily due to a reduction in energy acquisition as a result of reduced clearance rates during hypoxia. Shell damage had no significant affect on any of the physiological processes measured or the SFG calculated. Body condition was unaffected by hypoxia or shell damage. In conclusion, minor physical damage to mussels had no effect on physiological energetics but environmental hypoxia compromised growth, respiration and energy acquisition presumably by reducing feeding rates.

Item Type:	Publication - Article
Additional Keywords:	GREEN-LIPPED MUSSEL; PHYSIOLOGICAL-RESPONSES; CONTAMINANT LEVELS; ANOXIC SURVIVAL; PERNA-VIRIDIS; SEA; FILTRATION; BIVALVIA; CALCIFICATION; AVAILABILITY
Subjects:	Ecology and Environment Marine Sciences
Divisions:	Plymouth Marine Laboratory > Science Areas > Marine Life Support Systems (expired)
Depositing User:	Mrs Julia Crocker
Date made live:	14 Oct 2014 13:41
Last Modified:	06 Jun 2017 16:12
URI:	https://plymsea.ac.uk/id/eprint/6255

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