Book Chapters
Science Quality and Integrity
The USGS provides unbiased, objective, and impartial scientific information upon which our audiences, including resource managers, planners, and other entities, rely.
The USGS provides unbiased, objective, and impartial scientific information upon which our audiences, including resource managers, planners, and other entities, rely.
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: 6196
Crassulacean acid metabolism in submerged aquatic plants Crassulacean acid metabolism in submerged aquatic plants
CO2-fixation in the dark is known to occur in various organs of many plants. However, only in species possessing crassulacean acid metabolism (CAM) does dark CO2-fixation contribute substantially to the carbon economy of the plant. Until very recently CAM was known only from terrestrial species, largely drought adapted succulents. The discovery of CAM in the submerged aquatic fern ally...
Authors
Jon E. Keeley
Density of rocks and minerals Density of rocks and minerals
No abstract available
Authors
G. R. Johnson, G.R. Olhoeft
Diagnostic services available Diagnostic services available
No abstract available at this time
Authors
G. L. Hoffman, A.J. Mitchell
Disease caused by environmental stressors Disease caused by environmental stressors
The use of the terms 'stress' and 'stressor' is sometimes inconsistent (e.g., Pickering, 1981). The term 'stressor' should be used to describe environmental or other factor intensities severe enough to require a compensatory response at any level of biological organization. A stressor is normally extrinsic. The term 'stress' indicates the organismic response initiated by the stressor...
Authors
Gary Wedemeyer, C.P. Goodyear
Disease control in food fish Disease control in food fish
No abstract available at this time
Authors
G. L. Bullock
Diseases caused by environmental stressors Diseases caused by environmental stressors
No abstract available at this time
Authors
Gary Wedemeyer, C.P. Goodyear
Diseases caused by microorganisms: Agents: virales Diseases caused by microorganisms: Agents: virales
No abstract available at this time
Authors
K. Wolf
Distribution of exotic fishes in the continental United States Distribution of exotic fishes in the continental United States
No abstract available at this time
Authors
W.R. Courtenay, D.A. Hensley, J.N. Taylor, J.A. McCann
Ecological considerations for the use of dispersants in oil spill response Ecological considerations for the use of dispersants in oil spill response
A multidisciplinary task force with membership from government agencies, academia, and industry is developing ecologically based guidelines for dispersant use in marine and estuarine environments. The guidelines are organized by habitat type (e.g., coral reefs, rocky shores, bird habitats) and consider dispersant use to protect the habitats from impact, to mitigate impacts, and to clean...
Authors
J. Lindstedt-Siva, P.H. Albers, K.W. Fucik, N.G. Maynard
Effects of chemically induced immune modulation on infectious diseases of fish Effects of chemically induced immune modulation on infectious diseases of fish
No abstract available at this time
Authors
D. P. Anderson, W. B. van Muiswinkel, B.S. Roberson
Effects of oil and dispersants on birds Effects of oil and dispersants on birds
No abstract available.
Authors
P.H. Albers
Effects of roads on breeding birds Effects of roads on breeding birds
No abstract available.
Authors
L.W. Adams, A. D. Geis