Age and Growth Study of Charlotte River Creek Chubs

Kristopher Shawn Kehi
Department of Science and Natural Resources
Lake Superior State University
Sault Ste. Marie, MI 49783


Abstract

	Creek Chubs (Semotilus atromaculatus) were seined from the Charlotte River to do
a growth study. Length frequency analysis was used to detennine age class structure, and
scale analysis was used to verify the length frequency age designation.

	Young of the year through age class IV were found. The direct proportion method
was used to calculate the length at age for previous years. Average calculated length at the
first annulus was 46 mm., at the second annulus was 88 mm and at the third annulus was
123 mm.

	The growth rates were found to be close to those of another study done at a similar
latitude, however where slower than a study done at a lower latitude.




Selected References:

Becker, G.C. 1983. Fishes of Wisconsin. University of Wisconsin Press: Madison WI.

Dinsmore, J.J. 1962. Life History of the Creek Chub, with emphasis on growth. Proc.
Iowa Academy of Science. 69: 296-301.