Photo: Taylor
 

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Evolving Challenges in Great Lakes Fisheries

The Laurentian Great Lakes are a unique natural resource that has directly affected the lives of the citizens of the United States and Canada. Their presence and importance to society are evident in historical and modern day records of nearly every aspect of civilization. One of the major focal points of the Michigan Sea Grant College Program is to provide an understanding of the ecological factors that affect our Great Lakes fisheries - a highly visible and important product of the Great Lakes ecosystem.

The history of Great Lakes' fisheries is directly related to the cultural values of those who live in the Great Lakes basin. As such, the Great Lakes reflect the ever changing socio-economic landscape and the political forces within both border countries. These forces have greatly influenced the physical, chemical and biological makeup of the Great Lakes themselves.

I grew up on the shore of Lake Ontario at a time when the lake was considered a wasteland for industrial and municipal uses, and where alewives died on the beaches routinely from May throughout the summer. The idea that Lake Ontario was a valuable fishery resource seemed ludicrous to me. It was a time when beaches were closed due to high bacterial counts, the stench of dead alewives was common, and people viewed the inland oceans as places where societal waste could be diluted. With marinas poorly developed, recreational fishing and boating on the lakes was minimal. Sadly, perhaps because of my adolescent age, I accepted the state of the lakes, lacking the vision that they would ever be much of a fisheries resource. I had implicitly accepted the degraded aquatic system.

Little did I know a social and ecological transformation was already underway. By the time I arrived in Michigan in 1980, the Great Lakes fisheries had become a valuable resource to Canadian and American citizens of the Great Lakes basin. The waters and shorelines were clean, and the recreational fisheries thriving. The basin residents had come together - agreeing that a clean and healthy aquatic environment was fundamentally important. A new generation of individuals had been mobilized to actively maintain our vigilance in protecting and enhancing our Great Lakes and their fisheries. Among the leaders of these efforts was the Michigan Sea Grant College Program, whose efforts in research, communication and advisory services, have assisted the residents of the Great Lakes basin to be better stewards of these highly unique and valued freshwater seas!

Today, new challenges are arising, many in the form of biological pollutants, or aquatic nuisance species, entering our waters through our vast shipping network. These invaders are having a significant influence on the structure and function of our lakes and threaten to permanently change the productivity pathways to our fishery resources. Michigan Sea Grant looks forward to our continuing partnership with our local, state, federal and tribal governance structures and our many publics to enhance our understanding and well-being of our Great Lakes ecosystems.

William Taylor, Ph. D.
Michigan Sea Grant Associate Director

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