Barbara Spring's Books

I have an author's page on Amazon.com.  On this page you can find out something about me and the books I have written.  There is also a forum for discussion of  my books.  Also I have a website: Barbara Spring's Books: http://barbaraspring.yolasite.com

The Great Lakes are a powerful presence in my life and in my books.

Here are the Great Lakes, the deepest, coldest and farthest north, Lake Superior;  then Lake Michigan the only Great Lake entirely within the U.S. then Lake Huron, shallow Lake Erie and Lake Ontario.

NOAA has mapped their depths.

Regatta

The race is about to start on Lake Michigan, Sept. 12, 2009.

The Dynamic Great Lakes non fiction book

The Dynamic Great Lakes is a popular non-fiction book about the fishes and other living ecosystems in the five Great Lakes and their connecting waters.  The best price currently is at Amazon.com.http://www.amazon.com/gp/product/1588517314/
There is a search inside feature.

Trailer for the Dynamic Great Lakes

Here is an excerpt from my book, the Dynamic Great Lakes.

salmon, steelhead, lake trout are in

Some salmon, steelhead, and lake trout are being caught at the mouths of rivers that flow into Lake Michigan. Suddenly the water went from the 70's to the 40's and the fish are heading for their spawning beds.

Great Lakes Plankton

Zooplankton in the Great Lakes such as this copepod pictured are a little less numerous than the phytoplankton they feed upon. Invasive species such as zebra mussels and quagga mussels deplete the waters of food important to immature fish and other parts of the food pyramid.
For more information about Great Lakes biota, read
The Dynamic Great Lakes.