John Gunn is a fisheries biologist who has for the past 25 years studied the effects of acid rain, climate change, and a variety of other environmental factors on coldwater fish communities. As the director of the Living with Lakes Centre in Sudbury and Canada Research Chair in Stressed Aquatic Systems, he is now leading a team of researchers in the study of the effects of multiple stressors on Shield ecosystems.
He is also investigating the recovery processes that operate once stressors are removed. Lakes near Sudbury, are particularly important for the recovery studies. Emissions of air pollutants in this area have declined by about 90 per cent in recent decades and many aquatic systems are beginning to recover. Here, he takes time to answer The Star’s 10 questions.
Forests are often described as the lungs of the planet, and freshwater as its lifeblood. Sudbury has plenty of both, although the former was missing for quite a while. Can you talk a bit about the relationship between the two and how regreening has benefited our lakes and rivers? Continue Reading →