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Pictured Rocks National LakeshoreVisitors to Pictured Rocks National Lakeshore enjoy the beautiful beaches of Lake Superior as the waves roll gently in.
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Pictured Rocks National Lakeshore
Other Invertebrates
An NPS employee testing for water quality while in an inflatable boat on Little Chapel Lake.

NPS photo

Little Chapel Lake

Zooplankton communities vary among the lakes. In addition, these communities vary seasonally and with depth within the same lake. To date, 35 taxa of cladocerans, 11 species of calanoid and cyclopoid copepods, and two genera of rotifers have been identified from eight lakes in Pictured Rocks National Lakeshore.

As is typical, one cladoceran species, one calanoid copepod species, and one cyclopoid copepod species dominate the zooplankton community in a lake, with other species occurring at much lower relative frequencies. Dominant zooplankton taxa include the cladocerans Bosmina longirostris, Eurycercus lamellatus, Daphnia galeata mendotae, Holopedium gibberum, and Pseudochydorus globosus; the calanoid copepods Skistodiaptomus oregonensis, Epischura lacustris; the cyclopoid copepods Cyclops vernalis and Diacyclops bicuspidatus thomasi; and rotifers of the genus Keratella.

The North Country National Scenic Trail stretches from North Dakota to New York, a distance of 3,200 miles.  

Did You Know?
The North Country National Scenic Trail connects outstanding scenic, natural, and cultural sites in seven northern states from Crown Point, New York, to Lake Sakakawea in North Dakota. The trail was established on March 5, 1980. Pictured Rocks National Lakeshore is home to 42 miles of the NCNST.
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Last Updated: December 04, 2006 at 13:11 EST