Lake Huron

Lake Huron is the border between Canada and the United States of America. It borders the US state of Michigan and the Canadian province of Ontario. French explorers named him after the Indian tribal association of Wyandot also Huron . The lake was also the eponymous for the so-called Huronian icing, whose traces can be seen well in its layers of rock.

The lake is 332 km long and 245 km wide.

The lake is connected to Lake Michigan by the eight-kilometer-long Mackinac Strait of Mackinac. It is not a connection by a river or stream, but a waters without gradients. Therefore Lake Huron together with Lake Michigan can also be considered a lake.

The largest tributary of the Huron is the Saint Marys River, the outflow over the St. Clair River.

In terms of area, Lake Huron is the second largest of the Great Lakes with 59,586 qkm after Lake Superior and the third largest freshwater lake in the world. On the other hand, if you look at the volume, it is only third in the Great Lakes and is still surpassed by Lake Michigan. At low tide the lake has a volume of approx. 3,540 qkm. With its 30,000 islands, the coastline of Lake Huron is the longest of the Great Lakes at 6,157 km.

The waters of the Huron lake have a residence time of 22 years, which means that after an average of 22 years, the lake water is completely replaced.

As with all the Great Lakes, the ecology of Lake Huron has undergone drastic changes in the last one hundred years. Originally, the lake was home to a natural fish population dominated by American Arctic char. He was fed by the 1952 extinct Coregonus johannae and by bullheads and other domestic fish. In the 1930s, invasive species such as sea lamps, river herring and rainbow stingers began to proliferate. The American Arctic char had almost been eradicated by overfishing in the lake until 1950. The sea-eyes as parasites also contributed to the decline in the char population. Non-native Pacific salmon were settled in the lake in the 1960s, and a few specimens of American Arctic char were also abandoned to preserve the species. However, the exposed animals only increased slightly.

Further invasive species in Lake Huron are the zebra and quagga zebra mussels, the sting-water flea and the black-mouthed goby. At the bottom of the lake, the fish population was close to zero in 2006, and zooplankton changes were also observed. In recent years, fewer and fewer salmon were caught, as well as herring mares. These changes are probably also due to the influence of the new, exotic species in the lake.