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Book Chapters

Browse more than 5,500 book chapters authored by our scientists over the past 100+ year history of the USGS and refine search by topic, location, year, and advanced search.

Filter Total Items: 6158

Impacts of variation in planktivorous fish on abundance of daphnids: A simulation model of the Lake Mendota food web: Chapter 20 Impacts of variation in planktivorous fish on abundance of daphnids: A simulation model of the Lake Mendota food web: Chapter 20

Previous chapters in this volume have outlined the goals of the Lake Mendota food web manipulation study (Rudstam et al., Ch. 12) and have reported on variations in phytoplankton and zooplankton abundances during the past 15 years (Lathrop and Carpenter, Ch. 7 and 8). Because of the long time scales inherent in such a lake management manipulation, it became imperative to attempt to...
Authors
Chris Luecke, Cynthia C. Lunte, Russell A. Wright, Dale M. Robertson, Ann S. McLain

Karyotype and identification of sex in two endangered crane species Karyotype and identification of sex in two endangered crane species

A laboratory procedure for sex identification of monomorphic birds was developed using modern cytological methods of detecting chromosome abnormalities in human amniotic fluid samples. A pin feather is taken from a pre-fledging bird for tissue culture and karyotype analysis. Through this method, the sex was identified and the karyotype described of the whooping crane (Grus americana) and...
Authors
C. Goodpasture, G. Seluja, G. Gee

Laboratory methods Laboratory methods

No abstract available
Authors
F.G. Ethridge, W.R. Almon, M.P. Cone, D.G. Kersey, H.A. Ohen, W.A. Nagel, K.A. Byerly, Jim Funk, C.L. Vayra, J.G. Kaldi, R.M. Sneider, J.T. Hawkins, R. W. Scott, D.W. Houseknecht, J.B. Thomas, P.C. Henshaw, R.L. Kaufman, L.W. Slentz, P.A. Dickey, Dare Keelan, J.O. Amaefule

Maintenance of the zebra mussel (Dreissena polymorpha) under laboratory conditions Maintenance of the zebra mussel (Dreissena polymorpha) under laboratory conditions

Zebra mussels (Dreissena polymorpha) with a shell length >1 mm are adaptable to laboratory conditions if ammonia levels are low (10 mm) resulted in an average growth rate of 2 mm/month.
Authors
S. Jerrine Nichols

Metabolic products as biomarkers Metabolic products as biomarkers

Ideally, endogenous biomarkers would indicate both exposure and environmental effects of toxic chemicals; however, such comprehensive biochemical and physiological indices are currently being developed and, at the present time, are unavailable for use in environmental monitoring programs. Continued work is required to validate the use of biochemical and physiological stress indices as...
Authors
M. J. Melancon, R. Alscher, W. Benson, G. Kruzynski, R.F. Lee, H.C. Sikka, R.B. Spies
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