Issue |
Aquat. Living Resour.
Volume 24, Number 3, July-September 2011
Physiomar10
|
|
---|---|---|
Page(s) | 273 - 282 | |
DOI | https://doi.org/10.1051/alr/2011113 | |
Published online | 01 July 2011 |
Physiological and biochemical indicators of mussel seed quality in relation to temperatures
1
Institut des sciences de la mer– UQAR,
310 allée des
Ursulines, Rimouski, Québec,
G5L 3A1,
Canada
2
Department of Fisheries and Oceans, Aquaculture and Coastal Ecosystem Section, Gulf Fisheries
Centre, Moncton,
NB, E1C 9B6, Canada
3
IFREMER, Laboratoire Environnement Ressources en
Languedoc-Roussillon, Pôle “Mer et
Lagunes”, Bd Jean Monnet, BP
171, 34203
Sète Cedex,
France
4
Pêches et Océans Canada, Direction des sciences halieutiques et
aquaculture, Institut Maurice-Lamontagne, 850 Route de la Mer, Mont-Joli, Québec, G5H
3Z4, Canada
5
National Veterinary Institute (SVA), Ullsväg 2B, 75189
Uppsala,
Sweden
a Corresponding author: rejean_tremblay@uqar.qc.ca
Received: 12 February 2011
Accepted: 13 May 2011
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 °C and 25 °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.
Key words: Wild seed / aquaculture / physiological fitness / growth / survival / multi-locus heterozygosity / Mytilus spp.
© EDP Sciences, IFREMER, IRD 2011
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.