DSC_4154 Lowland Longjaw galaxias (Galaxias cobitinus) access restriction sign on the lower Kauru River because of the threat of didymo to longjaw spawning habitat. Our rarest native fish lives and breeds here in marginal shallows of the river channels *
11008-20001 Didymo, or rock snot (Didymosphenia geminata) is a species of diatom that blooms in freshwater rivers and streams, with consistently cold water temperatures. In late Winter it can form large mats on the bottom of rivers and streams. Didymo was first reported in New Zealand in the Lower Waiau in 2004. It is currently found in over 150 South Island Rivers, but is not in the North Island. Waiau River *
DSC_8814 Stock grazing in waterways degrades water quality and threatens fish habitat. Maruia *
