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Provedor de dados:  ArchiMer
País:  France
Título:  Physiological and biochemical indicators of mussel seed quality in relation to temperatures
Autores:  Tremblay, Rejean
Landry, Thomas
Leblanc, Neil
Pernet, Fabrice
Barkhouse, Carla
Sevigny, Jean-marie
Data:  2011-07
Ano:  2011
Palavras-chave:  Wild seed
Aquaculture
Physiological fitness
Growth
Survival
Multi-locus heterozygosity
Mytilus spp.
Resumo:  The bivalve's aquaculture industry is an important component of the economy in Eastern Canada. Seed collection is an initial and critical activity in most bivalve aquaculture industries including mussel farming in Prince Edward Island, production is entirely dependent on natural spat collection. Although seed supply is not a concern from a quantitative standpoint, there are growing concerns about the quality of natural seed. The general objective of this study was to identify and assess mussel seed quality criteria on the basis of physiological and biochemical status under laboratory and field conditions. The performance, as estimated by metabolic measurements, lipid class composition, multi-locus heterozygosity (MLH) and survival to stressful environment of seed from 6 different stocks sources was first compared under laboratory conditions at 12 degrees C and 25 degrees C. Results showed that MLH varied among the six sources of mussels in a way which is consistent with the physiological and biochemical indicators of seed quality. Mussels from Shippagan (New Brunswick) and Tracadie (Prince Edward Island) were found to have the highest quality scores and the best adaptive capacity to extreme water temperature under laboratory conditions. The results of the stock-site reciprocal field studies are in general agreement with those of the laboratory experiments with higher survival of mussels from Shippagan, Tracadie and St. Peters Bays in the various study sites. Our results suggest that the measure of MLH and survival curves at stressful temperature could be a good criteria combination to identify the improved survival potential of mussels stocks.
Tipo:  Text
Idioma:  Inglês
Identificador:  http://archimer.ifremer.fr/doc/00051/16232/13754.pdf

DOI:10.1051/alr/2011113
Editor:  Edp Sciences S A
Relação:  http://archimer.ifremer.fr/doc/00051/16232/
Formato:  application/pdf
Fonte:  Aquatic Living Resources (0990-7440) (Edp Sciences S A), 2011-07 , Vol. 24 , N. 3 , P. 273-282
Direitos:  EDP Sciences, IFREMER, IRD 2011
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