Skip to main content
U.S. flag

An official website of the United States government

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: 6196

Phytoplankton spatial distribution in south San Francisco Bay: mesoscale and small-scale variability Phytoplankton spatial distribution in south San Francisco Bay: mesoscale and small-scale variability

Horizontal transects of surface salinity and in-vivo fluorescence indicate the existence of three distinct spatial regimes in South San Francisco Bay. A mid-Bay region of low phytoplankton biomass with little small-scale variance is bounded to the north and south by water masses having higher in-vivo fluorescence and enhanced small-scale variability. Autocorrelation analyses demonstrate...
Authors
Thomas M. Powell, James E. Cloern, Roy A. Walters

The Chihuahuan Desert The Chihuahuan Desert

No abstract available at this time
Authors
P.L. Warren, C.R. Schwalbe

Use of detrended correspondence analysis in evaluating factors controlling species composition of periphyton Use of detrended correspondence analysis in evaluating factors controlling species composition of periphyton

Detrended correspondence analysis (DCA) was evaluated for its usefulness in elucidating relationships among samples and among species of periphyton in an oligotrophic stream, and for its effectiveness in displaying major gradients where an experimental gradient (copper) affecting species composition was imposed. It was highly sensitive to differences among samples and consistently...
Authors
Harry V. Leland, James L. Carter
Was this page helpful?