Bull Trout, Salvelinus confluentus, and North American Porcupine, Erethizon dorsatum, Interaction in the Mackenzie Mountains, Northwest Territories

Peter A. Cott, Neil J. Mochnacz

Abstract


Evidence of an interaction between a Bull Trout (Salvelinus confluentus) and a North American Porcupine (Erethizon dorsatum), was observed during a fisheries survey in the Mackenzie Mountains, Northwest Territories. A male Bull Trout with porcupine quills imbedded in its mouth was collected. It is speculated that this occurred when the trout was aggressively defending its territory from a perceived threat – a swimming porcupine. This is the first documented account of an interaction between a fish and a porcupine.

Keywords


Bull Trout; Salvelinus confluentus; North American Porcupine; Erethizon dorsatum; prey; interaction; diet; Northwest Territories; Mackenzie Mountains; Mackenzie Valley

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DOI: http://dx.doi.org/10.22621/cfn.v121i4.523



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