Fisher Species Report


Martes pennanti

The fisher is a small carnivorous mammal native to North America. The fisher is a forest-dwelling creature whose range covers much of the boreal forest in Canada to the northern fringes of the United States…


Fishers are a medium-sized mammal, comparable to the size of domestic cat, and the largest species in the marten genus. Their bodies are long, thin, and low to the ground. The sexes have similar physical features but they are sexually dimorphic in size, with the male being much larger than the female. Males are 90–120 cm (35–47 in) in length and weigh 3.5–6 kg (8–13 lb). Females measure 75–95 cm (30–37 in) and weigh 2–2.5 kg (4–6 lb). The largest male fisher ever recorded weighed 9 kg (20 lb)…

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