Nature Conservancy re-maps miles of streams in Alaska

Nature Conservancy re-maps miles of streams in Alaska


US: A project that was started with salmon habitats, has ended with discovering miles of streams in the Mat-Su watershed basin that could wrap around the earth… twice.The revelation came from a group of scientists at the Nature Conservancy.

Using new technology, they re-mapped the area and discovered 28,000 miles of previously unmapped streams. “As a geographer, to have made this sort of discovery is astonishing for us. It’s very exciting,” said Jim DePasquale.

Scientists found many of the maps were extremely out of date. The Nature Conservancy worked with nearly a dozen organizations to re-map the area over the past three years. The results were condensed into a detailed hydrographic map.

“We were able to pick up a great number of streams and number of detail in the upper elevations of the Talkeetna Mountains,” DePasquale explained. Some of the streams were small enough to step over; others were shallow, like parts of the Matanuska River. DePasquale said each plays an important role in salmon conservation.

“Having an accurate and detailed map of a community’s hydrographic and freshwater resources is integral for community planning, residential planning, development, emergency response,” he said. The Matanuska River provides a vital habitat for salmon. It also snakes through one of the fastest growing regions in Alaska.

Source: KTVA