Name: Significant Aggregations of Krill (SAK)/Régions d’Aggrégation Significatives de Krill (RASK)

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Description: <DIV STYLE="text-align:Left;"><DIV><DIV><P><SPAN>The objective of th</SPAN><SPAN>e</SPAN><SPAN>study was to describe the spatial distribution of krill in eastern Canadian waters using a statistical modelling approach in support of the identification of important habitat for the western North Atlantic (WNA) blue whale (Balaenoptera musculus). Generalized Additive Models (GAMs) were used to predict ‘Significant Aggregations of Krill’ (SAK), i.e., areas where dense krill aggregations would have a greater probability of occurring. SAK cover less than 2% of the entire spatial domain and their location varied among krill categories and seasons. These SAK are interpreted as areas where environmental conditions promote krill aggregation on a regular basis and therefore are potentially important for WNA blue whale foraging in eastern Canadian waters.</SPAN></P><P><SPAN /></P><P><SPAN>#FRA L’objectif de </SPAN><SPAN>l'</SPAN><SPAN>étude </SPAN><SPAN>était </SPAN><SPAN>de décrire la distribution spatiale du krill dans les eaux de l’est du Canada à l’aide de modèles statistiques, un travail réalisé en support à l’identification de l’habitat de la baleine bleue (Balaenoptera musculus) de l’ouest de l’Atlantique. Des modèles additifs généralisés (MAGs) ont été utilisés pour prédire les ‘Régions d’Aggrégation Significatives de Krill’ (RASK), i.e. les régions où la probabilité de rencontrer des essaims denses de krill est la plus élevée. Ces RASK sont considérées comme des régions où les conditions environnementales permettent la formation d’essaims denses de krill sur une base régulière, représentant ainsi des régions potentiellement importantes pour l’alimentation de la baleine bleue de l’ouest de l’Atlantique.</SPAN></P></DIV></DIV></DIV>

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Copyright Text: Plourde, S., Lehoux, C., McQuinn, I.H., and Lesage, V. 2016. Describing krill distribution in the western North Atlantic using statistical habitat models. DFO Can. Sci. Advis. Sec. Res. Doc. 2016/111. v + 34 p. #FRA Plourde, S., Lehoux, C., McQuinn, I.H., and Lesage, V. 2016. Describing krill distribution in the western North Atlantic using statistical habitat models. Secr. can. de consult. sci. du MPO. Doc. de rech. 2016/111. v + 34 p. [Disponible en anglais seulement]

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