Culverts Kill Fish Too
Because native fish migrate during their lifecycles, the innocuous looking culvert, channelling the stream under the track or ford, can spell death to native fish. While many fish species can slither over spray-covered rocks or climb steep, wet waterfalls, a culvert can be an insurmountable barrier because fish cannot leap straight up. Because native fish must migrate up and down stream to breed, a culvert downstream may destroy all the fish life upstream. But once recognised, this problem can be solved. There are various simple engineering solutions to suit the farmer and the fish.
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https://paperspast.natlib.govt.nz/periodicals/FORBI20020201.2.29
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Forest and Bird, Issue 303, 1 February 2002, Page 31
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98Culverts Kill Fish Too Forest and Bird, Issue 303, 1 February 2002, Page 31
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