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HOW TURBIDITY AFFECTS FISH BEHAVIOUR

For many years now I’ve noticed that catch rates are affected by the optical clarity of the water. Generally I have greater success if the water is optically clear than when it is murky or cloudy and full of suspended sediment. It is still possible to catch fish when the water is murky but it requires a change in tactics. More about that later. Turbidity … Continue reading HOW TURBIDITY AFFECTS FISH BEHAVIOUR

PERCH (REDFIN) FEEDING BEHAVIOUR

Text: Mike Ladle¬†¬† Feature image: John Kuczala Perch have big eyes and big mouths. These two simple facts suggest that old stripey is a predator largely using its excellent eyesight to find prey. Of course, once they attain a decent size, these fish feed mainly on smaller species or on the young of other fish. The question is do we have any information about when, … Continue reading PERCH (REDFIN) FEEDING BEHAVIOUR

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WHY IS FLY FISHING IN FRESHWATER BETTER AT NIGHT?

Most rivers in NZ have an evening rise when trout seem to appear from nowhere to feed on insects. More fish seem to rise to flies on the surface after dark than during the day. Why is this so and can it be explained scientifically? Dr Mike Ladle, a retired UK fisheries ecologist, spent many years studying this phenomenon and shares some of his insights … Continue reading WHY IS FLY FISHING IN FRESHWATER BETTER AT NIGHT?