Name: Aires de concentration connues de la Mactre de l'Atlantique dans le golfe du Saint-Laurent

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Description: #Français La couche représente des aires de concentration connues de la mactre de l'Atlantique (Spisula solidissima) exploitées (communément appelées « gisements ») ou non exploitées présentes dans le golfe du Saint-Laurent, autour des Îles-de-la-Madeleine. Elle a été conçue pour le Centre national des urgences environnementales (CNUE) pour la préparation et l’intervention en cas de déversements d'hydrocarbures. Les aires de concentration ont été délimitées grâce à des données d'inventaire du MPO (2000-2020), des données de pêches commerciales (journaux de bord et récépissés d'achat de 2002 à 2020 et observations en mer de 2005 à 2017), des données de pêches exploratoiresainsi que des entrevues. À noter que cette couche est tributaire des inventaires effectués et ne représente ainsi que les aires connues de la mactre de l'Atlantique. De plus, plusieurs informations proviennent d'inventaires qui ne visaient pas nécessairement cette espèce. Sa distribution est donc assurément plus étendue que celle recensée dans le jeu de données. #English The dataset represents known concentration areas of harvested or unharvested Atlantic surf clam (Spisula solidissima) in the Gulf of St. Lawrence, around the Magdalen Islands. The dataset was created for the National environmental emergencies centre (NEEC) for preparation and response purposes in case of an oil spill. Concentration areas were defined using DFO inventories conducted between 2000 and 2020, commercial fisheries data (logbooks and purchase receipts from 2002 to 2020 and observations at sea from 2005 to 2017), data from exploratory fisheries as well as interviews. Note that this layer is dependent on the inventories carried out and thus only represents the known areas of the Atlantic surf clam. In addition, most of the information comes from inventories that did not necessarily target this species, therefore its distribution is undoubtedly wider than what is recorded in this layer.

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Copyright Text: #Français Pêches et Océans Canada, 2021 Pour les références complètes ayant servi à créer la couche, voir ci-bas. #English Fisheries and Oceans Canada, 2021 For the complete references used to create the layer, see below. Bio-Conseil. 1986. Pêche exploratoire à la palourde (Spisula solidissima) aux Îles-de-la-Madeleine, automne 1985. Rapport final, Bio-Conseil, Pêches et Océans Canada. 24 p. Bernier, L. et L. Poirier. 1979. Évaluation sommaire du stock de mactres de l'Atlantique, Spisula solidissima Dillwyn, des Îles-de-la-Madeleine (golfe du St-Laurent). Cahier d'information, ministère de l'Industrie et du Commerce. 42 p. Bourget, E. et D. Messier. 1983. Macrobenthic density, biomass, and fauna of intertidal and subtidal sand in a Magdalen Islands lagoon, Gulf of St. Lawrence. Can. J. Zool. 61(11):2509-2518. Brulotte, S. 2013. Évaluation des stocks de la mactre de l’Atlantique, Spisula solidissima, des eaux côtières des Îles-de-la-Madeleine – méthodologies et résultats. Secr. can. de consult. sci. du MPO. Doc. de rech. 2013/082: x + 58 p. Brulotte, S. 2016. Évaluation des stocks de mactre de l’Atlantique, Spisula solidissima, des Îles-de-la-Madeleine, Québec en 2015 – méthodologie et résultats. Secr. can. de consult. sci. du MPO. Doc. de rech. 2016/074. x + 51 p. Fréchette, M. et M. Giguère. 1984. Rapport sur une pêche exploratoire à la palourde aux Îles-de-la-Madeleine en 1984. Pêches et Océans Canada. 17 p. Hurlbut, T. et D. Clay. 1990. Protocols for research vessel cruises within the Gulf region (demersal fish) (1970-1987). Can. Manuscr. Rep. Fish. Aquat. Sci. 2082:143p. Hurtubise, S. (Gestionnaire de données de pêches [ZIFF] et d'observateurs en mer). Données non-publiées. Pêches et Océans Canada. MPO. 2016. Évaluation des stocks de mactre de l’Atlantique des Îles-de-la-Madeleine en 2015. Secr. can. de consult. sci. du MPO, Avis sci. 2016/022. MPO. 2019. Évaluation du stock de mactre de l’Atlantique des Îles-de-la-Madeleine en 2018. Secr. can. de consult. sci. du MPO, Avis sci. 2019/031.

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