Calumet Harbor

Calumet Harbor,

artificial harbor on Lake Michigan, at the mouth of the Calumet River, NE Ill., in S Chicago. The harbor, dredged to 27 ft (8 m), is formed behind a breakwater extending c.2 mi (3.2 km) into Lake Michigan. It is a unit of the Port of Chicago and a principal terminal for shipping on the Great Lakes and the St. Lawrence Seaway. The chief products handled there were raw materials for steelmaking and iron products, but the industry has fundamentally declined. Calumet River (c.8 mi/13 km long) connects the harbor with Lake Calumet (c.2 sq mi/5 sq km) in S Chicago. Once a shallow body of water with marshy shores, the lake has been transformed into a modern deepwater port. Some heavy industry, grain-storage bins, and warehouses surround it. Canals connect the lake with the Calumet region of Indiana and with the Illinois Waterway.
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Researchers testing Great Lakes waters for signs of Asian carp and other invasive species detected DNA from the ruffe in two samples taken in July from Lake Michigan's Calumet Harbor at Chicago, said Lindsay Chadderton of The Nature Conservancy, a member of the team.
Recruitment failure of mottled sculpin Cottus bairdi in Calumet Harbor, Southern Lake Michigan, induced by the newly introduced round goby Neogobius melanostomus.
The report reveals that in Lake Michigan's Calumet Harbor, some smaller fish have higher PCB concentrations than the predators that eat them.
Calumet Harbor runs from Chicago to northern Indiana and is heavily polluted because of industrial and shipping activity.
Jude of the University of Michigan in Ann Arbor and John Janssen of the University of Wisconsin-Milwaukee observed mottled sculpins in Calumet Harbor on southern Lake Michigan.
Clair River, the species spread into the Detroit River, Lake Erie, and, recently, Lake Michigan near Calumet Harbor (T.P.
The first Indiana specimens were collected in 1994 from Calumet Harbor (J.
In Calumet Harbor, round gobies were abundant on cobble and sandy substrates, although adults were less abundant on sand than were juveniles.
In addition, four large adults were collected along the revetment wall during SCUBA surveys in Calumet Harbor during July 1996.
In 1870, the federal government began constructing the Calumet Harbor to make the river a navigable passage for ships (Moore 1959).