Why Do Salmons Prefer Dark Flies On Dark Days & Bright Flies On Bright Days?

We can answer this by understanding a few key elements of a salmon’s world: from the competitive nature of the food chain, the salmon’s feeding habits, and the life stage of the prey.

Salmonids, which include salmon, trout, freshwater whitefishes and graylings, are predators that feed on small crustaceans, aquatic insects, and smaller fish. Like certain humans, they become more selective of their food items as they grow older. Younger fish are naturally less suspicious and have added pres more here https://logicalscience.com/2018/01/why-do-salmons-prefer-dark-flies-on-dark-days-bright-flies-on-bright-days/

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