The Ecology of Glacial Rivers: The role of beavers

The fifth in a series from the Susitna Salmon Center: The Ecology of Glacial Rivers. This segment by Jeff Davis explains how beavers improve habitat for salmon. Gravel bars that develop as glacial rivers move across the floodplain expose soils allowing for the establishment of wind-blown seeds of cottonwoods and willows. Willow stems transported and…

Ecology of Glacial Rivers: Side Channels

The fourth in a series from the Susitna Salmon Center: The Ecology of Glacial Rivers. This segment by Jeff Davis tells how side channels and side sloughs provide important salmon spawning and rearing habitat. The balance between the amount and timing of high flows and sediment transported from glaciers results in a number of different…

The Ecology of Glacial Rivers: Upland or backwater sloughs

The third of a new series from the Susitna Salmon Center: The Ecology of Glacial Rivers. This segment by Jeff Davis, and voiced by Katie Kierczynski, describes how suspended sediment changes conditions in main channels of glacial rivers, and how fish have adapted to these changes. Upland sloughs occur along the margins of glacial rivers…

The Ecology of Glacial Rivers: How fish have adapted to silty water

The second of a new series from the Susitna Salmon Center: The Ecology of Glacial Rivers. This segment, by Jeff Davis, describes how suspended sediment changes conditions in main channels of glacial rivers, and how fish have adapted to these changes. The main channels of glacial rivers carry a large amount of fine sediment suspended…

The Ecology of Glacial Rivers: Fish diversity

The first of a new series from the Susitna Salmon Center: The Ecology of Glacial Rivers. This segment, by Jeff Davis, is about how habitat diversity in glacial rivers means more species of fish. It’s surprising for many people to learn that large glacial rivers, like the Susitna River, support over 20 species of fish….