Lakeshore Erosion

Erosion along shorelines can be caused by natural events (wind, water, and ice) or human activities. Although, human disturbances cause more rapid and far worse impacts to shorelines than natural events. According to a University of Michigan study, we cause 10 times...

Tea-Coloured Water

Does tea-coloured water in a lake mean it is polluted? No. The colour of water in a lake is not related to bacterial pollution or unsanitary conditions. It is caused primarily by decaying organic matter such as leaves, bark, humus and aquatic plants. Metals such as...

Swimmer’s Itch

Causes: The cause of swimmers’ itch is an allergic reaction to parasites that migrate from snails to ducks, geese, gulls, swans, muskrats and beavers. The parasites then return to water through infected feces and eggs. Swimmers’ itch isn’t contagious...

Leeches

Leeches are native residents in our local lakes. Often called bloodsuckers, Leeches are an important part of the natural food web in lakes. Most species of leech feed on worms, snails and insect larvae. Some species prefer vertebrate hosts such as fish, reptiles and...