Name: Grey seal distribution and abundance in the Estuary and the Gulf of St. Lawrence, including Saguenay River

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Description: #Français Cette couche représente la distribution et l'abondance du phoque gris(Halichoerus grypus) dans l'estuaire et le golfe du Saint-Laurent ainsi que dans la rivière Saguenay. Les données proviennent de relevés aériens effectués à marée basse en juin et août de 1994 à 1997, 2000 et 2001. Ces périodes correspondent respectivement à la mise bas et à la mue, périodes où les phoques utilisent intensivement les échoueries. Les polygones de cette couche de données représentent la distribution et l’abondance moyenne du phoque grispour tous les inventaires aériens (tables 4et 6, figures 4et 6de Robillard et al. 2005).Dans l'estuaire, les zones d'abondance élevée ont plus de 25 individus, les zones d'abondance moyenne ont entre 5 et 25 individus et les zones d'abondance faible ont moins de 5 individus. Dans le golfe, les zones d'abondance élevées ont plus de 70 individus et les zones d'abondance moyenne à faible ont moins de 70 individus. #English This layer represents the Greyseal (Halichoerus grypus) distribution and abundance in the Estuary and Gulf of St. Lawrence and in the Saguenay River. Data were collected during aerial surveys carried out at low tides in June and August 1994-1997, 2000 and 2001. June and August are respectively pupping and moulting seasons, when the haulout sites are intensively used by seals. Features in this layer show the grey seal distribution and mean abundance for all aerial surveys (tables 4and 6, figures 4 and 6 from Robillard et al. 2005). In the estuary, areas of high abundance have more than 25 individuals, areas of medium abundance have between 5 and 25individuals and areas of low abundance have fewer than 5individuals. In the Gulf, areas of high abundance have more than 70 individuals and areas of medium to low abundance have fewer than 70 individuals.

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Copyright Text: #Cartographie/Mapping Robillard, A., V. Lesage, and M.O. Hammill. 2005. Distribution and abundance of harbour seals (Phoca vitulina concolor) and grey seals (Halichoerus grypus) in the Estuary and Gulf of St. Lawrence, 1994–2001. Can. Tech. Rep. Fish. Aquat. Sci. 2613: 152 pp. #Informations sur la migration/Migration informations Lavigueur, L., Hammill, M.O. et S. Asselin. 1993. Distribution et biologie des phoques et autres mammifères marins dans la région du parc marin du Saguenay. Rapp. manus. can. sci. halieut. aquat. 2220: vi + 40. Lesage, V., and Hammill, M.O. 2001. The status of the grey seal, Halichoerus grypus, in the Northwest Atlantic. Can. Field-Nat. 115(4): 653-662.

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