At the Waters Edge: Nature Study in Lakes Streams and Ponds

By Alan M. Cvancara

Explores the basics of freshwater ecology--the workings of lakes, ponds and streams--as learned while traveling by canoe or kayak, or while hiking or snorkeling. Answers questions such as, ''Of what good are mosquitoes?'' and ''Of what harm is acid rain to lakes and streams?'' Includes more than 100 illustrations of aquatic life and associated environments. One chapter covers a hypothetical three-day solo journey. A list of select national wildlife refuges featuring freshwater environments is also included.

• Format: Paperback
• Language: English
• ISBN: 0471620866
• ISBN13: 9780471620860
• Release Date: April 1989
• Publisher: Jossey-Bass
• Length: 232 Pages
• Weight: 0.80 lbs.
• Dimensions: 0.7" x 6.1" x 9.2"