Invasive Species in the Great Lakes: A Brief History of the World's Most Invaded Freshwater System

The history of biological invasions in the North American Great Lakes basin spans two centuries and involves multiple vectors of spread including shipping, canals, aquarium release, bait release, aquaculture escapes, and intentional stocking. More than 180 non-native species have become established in the basin since the arrival of European settlers. The vast majority have little or no known adverse impacts. A subset of these non-native species known as Aquatic Invasive Species (AIS), however, have had adverse effects on the ecology and economy of the region, and some of these problems have been profound.

Dr. Jim Grazio, Ph.D., has worked as Pennsylvania’s Great Lakes Biologist for most of his career and has a unique first-hand knowledge of the problems caused by invasive species in the Pennsylvania waters of Lake Erie. Jim’s presentation will cover the history of biological invasions in the Great Lakes, highlighting some of the most interesting and destructive invaders. Jim will also discuss ongoing challenges and opportunities related to AIS management in one of the world’s most valuable freshwater ecosystems.

Видео Invasive Species in the Great Lakes: A Brief History of the World's Most Invaded Freshwater System канала Jefferson Educational Society Of Erie