As part of the Ministry's national environmental reporting programme, this report summarises changes in nuisance periphyton (algal) growth at National River Water Quality Network sites between 1990 and 2006. Algal growth can be a nuisance for swimming, fishing and kayaking and it affects fish and insect life in rivers.
As part of the Ministry's national environmental reporting programme, this report summarises changes in nuisance periphyton (algal) growth at National River Water Quality Network sites between 1990 and 2006. Algal growth can be a nuisance for swimming, fishing and kayaking and it affects fish and insect life in rivers.