Some aspects of the ecology of benthic macroinvertebrates in a cove of Lake Jeanette

UNCG Author/Contributor (non-UNCG co-authors, if there are any, appear on document)
Eleanor Ruth Lively (Creator)
The University of North Carolina at Greensboro (UNCG )
Web Site:
Paul Lutz

Abstract: A close examination of the benthos of the 0-5 m zone of a lake cove was undertaken at Lake Jeanette, 10 km north of Greensboro, North Carolina. Monthly samples were made from September, 1973 through April, 1974. The sampling technique devised for this project was successful; it insured minimal maintenance and uniform treatment of samples during collection. The incorporation of SCUBA allowed the investigator to come in contact with the study area and make direct observations. Time involved in sample processing was minimized by the use of Anderson's floatation method for the extraction of organisms from sediments. The cove was well-oxygenated. Organic nutrients were available from both allochthanous and autochthanous sources. Bottom waters proved to be circumneutral with respect to pH. The available evidence indicated that the lake is a second class, warm, monomictic lake. Insect larvae, pelecypods, platyhelminthes, amphipods, ostracods, bryozoans, and annelids made up the macroinvertebrate community of the cove benthos. Total numbers of the macroinvertebrates indicated increasing populations during the winter. These populations exhibited clumped distribution in the 0-5 m cove depths. Depth was limiting in the case of tabanids, trichopterans, planarians, amphipods, megalopterans, odonates, and possibly pelecypods, ephemeropterans, and coleopterans. Oviposition habits of adult insects and mobility of larval forms were also believed to have influenced distribution.

Additional Information

Language: English
Date: 1974
Lake ecology $z North Carolina $z Jeanette, Lake
Jeanette, Lake (N.C.)

Email this document to