Environment Canterbury scientists have revealed 6,847 hectares of farmland have been developed in the Waimakariri, Rakaia, Ashburton, and Rangitata river catchments in the last 30 years. North Canterbury Fish & Game is concerned by the findings of the major report which links this intensification to deteriorating water quality in high country lakes and spring-fed streams. North Canterbury Fish & Game Chief Executive Rasmus Gabrielsson says the report puts on paper what the public has witnessed in the high country for some time… shifting from a landscape dominated by the browns and greys of tussock and shrubland to the cultivated green pasture and fodder crops more associated with the Canterbury Plains. But he says farmers are very aware and are trying to do the right thing.