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Graph showing number of days per year that T(max) exceeds critical termal thresholds for brown trout in streams in the New Forest (a) 19.1 degrees Celsius - maximum limit for growth. Approximate values: open pool=70, shade pool=40-45, open riffle=50, shade riffle=under 10

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Graph showing number of days per year that T(max) exceeds critical termal thresholds for brown trout in streams in the New Forest (a) 19.1 degrees Celsius - maximum limit for growth. Approximate values: open pool=70, shade pool=40-45, open riffle=50, shade riffle=under 10


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Credit line: Forestry Commission

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