Date on Master's Thesis/Doctoral Dissertation
5-1986
Document Type
Master's Thesis
Degree Name
M.S.
Department
Biology
Degree Program
Biology, MS
Committee Chair
Monroe, Burt
Committee Member
Holdren, G.C.
Committee Member
Bosserman, Robert
Author's Keywords
Isopods; isopod reproduction; Beargrass Creek; Louisville; Kentucky
Abstract
The life history and annual production of the aquatic isopods L. fontinalis, C. intermedia and C. brevicaudus in a spring stream, Beargrass Creek, Louisville, Kentucky was studied. Reproductive activity was observed with the greatest intensity in the spring months from March to May. Smaller secondary peaks for recruitment of young were seen in the fall months for L. fontinalis and C. intermedia. Brood size for the three isopods was compared by linear regression. The mean annual biomass for the three isopods ranged from 0.67 g/m2 for C. intermedia, 0.83 g/m2 for C. brevicaudus to 2.1 g/m2 for L. fontinalis. Annual production estimated by the size frequency technique ranged from 3.76 g/m2 /year for C. intermedia, 5.90 g/m2 /year for C. brevicaudus to 13.12 g/m2 /year for L. fontinalis.
Recommended Citation
Eckstein, James A., "Life history and production of three species of isopods in Beargrass Creek Louisville, KY" (1986). Electronic Theses and Dissertations. Paper 4234.
Retrieved from https://ir.library.louisville.edu/etd/4234
