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Reflections On Science

Native’s not always good and exotic’s not all bad – Wayne Linklater

Sarah-Jane O'Connor posted in on March 3rd, 2017.

On World Wildlife Day, Victoria University of Wellington’s Dr Wayne Linklater writes in the Dominion Post about his thoughts on the “native good, exotic bad” message. An excerpt (read in full): I don’t like my children being provoked to kill for conservation. And I don’t like them being taught to demonise an entire species of animal, […]

Science clear on freshwater quality and trout

John Kerr posted in on July 6th, 2011.

Following claims that trout are responsible for the decline in New Zealand’s freshwater quality, scientists stepped forward to set the record straight. In a speech last week, Federated Farmers Dairy chairperson Lachlan McKenzie, accused introduced fish of contributing significantly to the declining water quality. The Science Media Centre highlighted the reaction from freshwater scientists who felt the […]

Are trout to blame for declining water quality?

Dacia Herbulock posted in on July 5th, 2011.

UPDATED: Scientists are questioning statements by a prominent dairy industry representative, suggesting trout are a ‘disastrous species’ — no better than ‘freshwater stoats’ — and that farmers have been unfairly blamed for their impacts on declining water quality. These allegations were made in a speech last week by outgoing Federated Farmers Dairy chairperson Lachlan McKenzie, urging members to use […]

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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