00:00Rivers naturally should meander and curve, but why does it matter?
00:10In the river there are literally hundreds and hundreds of different species of invertebrates and different species of fish
00:17and they've all got slightly different habitat requirements.
00:20Some of them like fast water, some of them like slow water, some of them like shallow water, some of them like deep water.
00:26A natural river provides all that and the meanders provide all that and the fallen wood because it makes the water move around.
00:33What are the signs here then that the water is really good quality?
00:37So you can see the plant life starting to come back really quickly already.
00:40So there's things like starwort and water forget-me-not and that creates brilliant habitat and a great food source.
00:47Also there's more patches of clean gravels where it looks like the trout have been spawning and disturbing the gravel.
00:53The clarity of the water is looking really good, so hopefully we're looking at a healthy river.
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