User:Kelseyhicks38/Salmonidae

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Steelhead are capable of spawning multiple times in comparison to salmon that die after one spawn. When the females ley their eggs, it is called a redd.

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Water temperature is one of the most important environmental influences on salmonoid biology (Carter, K. 2005). Temperature determines when the Steelhead will begin migrating upstream, which determines their spawning time, and effects the time the fry will hatch. Salmon and trout runs have shown a delay in response to either colder or warmer waters while heading back upstream. Steelhead are considered poikilotherms meaning temperature influences their life events. Their internal temperature is constantly changing and Steelhead must adapt to their environment in order to have a chance of survival. The temperature steelhead prefer to spawn in range from 3.9 - 9.4 degrees Celsius.