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Open AccessFeature PaperArticle

Commercial Performance of Blue Mussel (Mytilus edulis, L.) Stocks at a Microgeographic Scale

1
Institut des Sciences de la Mer de Rimouski (ISMER), Université du Québec à Rimouski (UQAR), 310 Allée des Ursulines, CP 3300, Rimouski, QC G5L 3A1, Canada
2
MERINOV, Centre d’Innovation de l’aquaculture et des pêches du Québec, Secteur Aquaculture, 107-125 Chemin du Parc, Cap-aux-Meules, QC G4T 1B3, Canada
3
Ministry of Agriculture, Fisheries and Food of Québec (MAPAQ - Ministère de l’Agriculture, des Pêcheries et de l’Alimentation du Québec), Fisheries and commercial aquaculture branch, 101-125, Chemin du Parc, Cap-aux-Meules, QC G4T 1B3, Canada
*
Author to whom correspondence should be addressed.
J. Mar. Sci. Eng. 2020, 8(6), 382; https://doi.org/10.3390/jmse8060382
Received: 18 April 2020 / Revised: 21 May 2020 / Accepted: 23 May 2020 / Published: 26 May 2020
(This article belongs to the Special Issue Marine Aquaculture)
Bivalve aquaculture is an important component of the economy in eastern Canada. Because of current social, environmental, economic, and resource constraints, offshore mussel cultivation seems to be a promising strategy. With the objective of optimizing farming strategies that support the sustainability and development of the mussel industry at a microgeographic scale, we evaluated, after a traditional two year production cycle, the commercial performance of spat from several mussel (Mytilus edulis) stocks originating from sites separated by less than 65 km and cultivated at two different grow-out sites (shallow lagoon and offshore waters). The spatiotemporal variation in spat performance was studied through a multiyear in situ “stock-site” spat transfer design. The spat supply originating from the Bassin du Havre-Aubert lagoon systematically exhibited a larger size at sleeving time when compared to other stocks, and a better productivity level when harvested. Nevertheless, an alternative strategy would be to collect spat from the Havre-aux-Maisons lagoon, mostly because of the important commercial volumes of spat that can be collected there. Commercial performance (net income) was three times higher in the deep offshore grow-out site than in the shallow lagoon site. This better productivity in the open sea confirms the highly valuable strategy of offshore mussel farming in this area, where it was hypothesized that the less stressful environmental conditions positively influence reproduction, survival, and growth trends. View Full-Text
Keywords: Mytilus edulis; spat transfer; stock; site; commercial performance; offshore Mytilus edulis; spat transfer; stock; site; commercial performance; offshore
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MDPI and ACS Style

Guillou, E.; Cyr, C.; Laplante, J.-F.; Bourque, F.; Toupoint, N.; Tremblay, R. Commercial Performance of Blue Mussel (Mytilus edulis, L.) Stocks at a Microgeographic Scale. J. Mar. Sci. Eng. 2020, 8, 382. https://doi.org/10.3390/jmse8060382

AMA Style

Guillou E, Cyr C, Laplante J-F, Bourque F, Toupoint N, Tremblay R. Commercial Performance of Blue Mussel (Mytilus edulis, L.) Stocks at a Microgeographic Scale. Journal of Marine Science and Engineering. 2020; 8(6):382. https://doi.org/10.3390/jmse8060382

Chicago/Turabian Style

Guillou, Efflam; Cyr, Carole; Laplante, Jean-François; Bourque, François; Toupoint, Nicolas; Tremblay, Réjean. 2020. "Commercial Performance of Blue Mussel (Mytilus edulis, L.) Stocks at a Microgeographic Scale" J. Mar. Sci. Eng. 8, no. 6: 382. https://doi.org/10.3390/jmse8060382

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