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Timaru Herald: Land use impact on water ‘not known for decades’

Peter Griffin posted in on August 26th, 2010.

Gerald Piddock writes in the Timaru Herald about groundwater – scientists say that the impact on our groundwater of intensive agriculture might not be known for decades, as it could take that long for any contaminants to reach monitoring sites. While effects on shallow groundwater might be seen fairly rapidly, effects on deep groundwater would […]

Dom Post: Study links runoff to smaller trout

Peter Griffin posted in on July 14th, 2010.

Marty Sharpe writes in the Dominion Post about a study showing that farm runoff (nitrates) going into the Taharua and Mohaka rivers  is making trout smaller. The effect on size is due to the increased algal levels in the water – the rivers’ clarity and food value decrease, meaning smaller trout. An excerpt: (read in […]

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