Temperature

Is the temperature of your water resource above the optimum range or within the optimum range?

 

Temperature ranges for various trout species

(EPA, 1986; Newbury et al., 1993; Raleigh, 1982; Raleigh et al., 1984a; Raleigh et al., 1984b).

 

Species, life stage	Upper limit(Celsius)	Optimum Range(Celsius)

Steelhead (Rainbow) trout
    adult				25			12 - 18
    spawning			n/a*			10 - 15.5

Cutthroat trout
    adult				22.0			9 - 12
    spawning			n/a			6 - 17
    eggs							10 - 11
    juveniles			21			11 - 21 (opt = 15)

			* not available

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?Information on Trout