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Production of Mussels, Mytilus Edulis, in Suspended Culture and Estimates of Carbon and Nitrogen Flow: Killary Harbour, Ireland

Published online by Cambridge University Press:  11 May 2009

P. G. Rodhouse ,
C. M. Roden ,
M. P. Hensey  and
T. H. Ryan
P. G. Rodhouse
Affiliation:
Shellfish Research Laboratory, Carna, Co. Galway, Ireland
C. M. Roden
Affiliation:
Shellfish Research Laboratory, Carna, Co. Galway, Ireland
M. P. Hensey
Affiliation:
Shellfish Research Laboratory, Carna, Co. Galway, Ireland
T. H. Ryan
Affiliation:
Shellfish Research Laboratory, Carna, Co. Galway, Ireland
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Extract

Culture of mussels, Mytilus edulis L. is a developing industry in Irish coastal waters. Settling larvae are collected on 10 m long ropes which are suspended from g.r.p. rafts at a density of five ropes per square metre or from paired long lines, buoyed by plastic floats, at a density of some four hundred ropes per hundred metres. Mussels are harvested after eighteen months when the ropes yield up to 5 kg live weight per metre or approximately 250 kg m−2. Commercial culture at this density clearly exerts a considerable effect on energy and nutrient flow in the coastal ecosystem. In order to quantify the role of cultured mussels we investigated the carbon and nitrogen budget for production rafts and long lines in Killary Harbour, a fjordic inlet on the Irish west coast (Rodhouse et al. 1984) and compared these with estimates for the wild population on the shore.

Type
Research Article
Information
Journal of the Marine Biological Association of the United Kingdom , Volume 65 , Issue 1 , February 1985 , pp. 55 - 68
Copyright
Copyright © Marine Biological Association of the United Kingdom 1985

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