It's generally understood that many of our native fish species need to move around to breed, and feed. And so we have recognised the need to build fishways to give them a helping hand swimming upstream past dams, weirs and other barriers. But we often forget that fish need to migrate downstream too, and this can present its own challenges.
In this article Recfishing Research talks with fisheries scientist, Dr Craig Boys about some of the challenges facing fish that 'go with the flow'
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