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NOAA Great Lakes Food Web Diagrams direct Author NOAA, Great Lakes Environmental Research Laboratory: Mason, Krause, and Ulanowicz, 2002 - Modifications for Lake Superior, 2009.
Lake Superior is the largest freshwater lake in the world by area and the third largest in volume, behind Lake Baikal in Siberia and Lake Tanganyika in East Africa. The Caspian Sea, while larger than Lake Superior in both surface area and volume, is brackish. Lake Superior's deepest point [4] on the bathymetric map. [1]
Siskiwit Lake [1] is the largest lake on Isle Royale in Lake Superior. 4,150 acres (16.8 km 2) in area, [2] the lake has cold, clear water which is relatively low in nutrients. [3] Tributaries include the Little Siskiwit River , and the lake's outlet is the Siskiwit River which flows into Lake Superior.
A freshwater aquatic food web. The blue arrows show a complete food chain (algae → daphnia → gizzard shad → largemouth bass → great blue heron). A food web is the natural interconnection of food chains and a graphical representation of what-eats-what in an ecological community.
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The Stannard Rock Reef is located off Keweenaw Peninsula about 24 miles (39 km) south of Manitou Island and 44 miles (71 km) north of Marquette, Michigan. [1] [10] In 1835, Captain Charles C. Stannard of the vessel John Jacob Astor first discovered this underwater mountain that extends for 0.25 miles (0.40 km) with depths as shallow as 4 feet (1.2 m) and averaging 16 feet (4.9 m).
The introduction of the ruffe seems to be causing much damage to Lake Superior. This fish's invasion of the lake has not only caused problems with space, but competing with other fish for food supply. The ruffe has similar eating habits, but an accelerated reproduction rate compared to other similar fish. Therefore, having more ruffe in the ...
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