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River Connectivity

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The St. Joseph rivermouth near St. Joseph, Michigan

Distribution and Controls Over Habitat and Food Web Structures and Processes in Great Lakes Estuaries

Rivermouth ecosystems, or freshwater estuaries, are the focus of human and wildlife interactions with the Great Lakes. They are highly valued as the region’s urban, industrial, shipping and recreational centers; and home to recreational harbors, wildlife viewing and production, beaches and urban riverfronts. Rivermouths are also both the mixing zones where nutrients from upstream watersheds are...
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Ecosystems Mission Area, Land Management Research Program, Species Management Research Program, Upper Midwest Environmental Sciences Center
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Distribution and Controls Over Habitat and Food Web Structures and Processes in Great Lakes Estuaries

Rivermouth ecosystems, or freshwater estuaries, are the focus of human and wildlife interactions with the Great Lakes. They are highly valued as the region’s urban, industrial, shipping and recreational centers; and home to recreational harbors, wildlife viewing and production, beaches and urban riverfronts. Rivermouths are also both the mixing zones where nutrients from upstream watersheds are...
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USGS scientist Brent Knights conducting fish sampling on the Upper Mississippi River.

River Productivity

Biological production represents the total amount of living material (biomass) that was produced during a defined period of time. This production is important because some of it is used for food and some is valued for recreation, it is a direct measure of total ecosystem processes, and it sustains biological diversity. Production is a measure of energy flow, and is therefore a natural currency for...
By
Ecosystems Mission Area, Biological Threats and Invasive Species Research Program, Land Management Research Program, Species Management Research Program, Upper Midwest Environmental Sciences Center
link

River Productivity

Biological production represents the total amount of living material (biomass) that was produced during a defined period of time. This production is important because some of it is used for food and some is valued for recreation, it is a direct measure of total ecosystem processes, and it sustains biological diversity. Production is a measure of energy flow, and is therefore a natural currency for...
Learn More