The Woodtick Press

Bruce Carlson, Author


Understanding Midwestern Aquatic Invasives

Aquatic invasive species are present in or threaten many lakes and rivers in the Midwest. To effectively deal with them or to prevent their introduction into your favorite body of water, it is important to understand them. In highly readable language and with numerous color figures, the author covers the most important invasive plants and animals from a variety of perspectives.

Now Available!

The topic of abortion persists as one of the most socially divisive issues of our time. Proponents of both sides of the issue often rely upon embryology to support their viewpoint. Without taking sides, the author offers clear, understandable language explaining the embryological science used to support or detract from stated positions on the issue. 

Bruce Carlson combines almost 70 years of observations, along with his training as a scientist, to provide a unique perspective on the natural history of an iconic north-central Minnesota lake. From ice-out in the spring, through the open water season, to the next winter, this profusely illustrated book provides a vivid picture of the seasonal changes in a lake. The account of these changes includes not only observations of what can be seen above the surface and on the land surrounding the lake, but also almost 75 underwater videos (in the electronic version that accompanies the printed book) that depict in stunning detail the underwater landscape of a glacial lake and its inhabitants.


Each summer millions experience the beauty of America’s lakes-the whirl of sights and sounds as boats cut through the water and birds call to each other from surrounding trees. Now biologist and ichthyologist Bruce M. Carlson takes nature lovers to the side of the lake that few will experience firsthand-a dynamic world where fish feed and spawn, loons dive deep to snap up perch, and light disappears one wavelength at a time before reaching the ink-blue bottom.