Publications
Read publications and other informational products to learn more about USGS science occurring in the Mississippi Basin.
Filter Total Items: 5656
A GIS-based decision support system for wetland permit analysis A GIS-based decision support system for wetland permit analysis
No abstract available.
Authors
Wei Ji, James Johnston
Submerged aquatic vegetation mapping: Working group report Submerged aquatic vegetation mapping: Working group report
No abstract available.
Authors
Lawrence R. Handley
Sea turtle strandings along the Texas coast reach alarming levels Sea turtle strandings along the Texas coast reach alarming levels
No abstract available
Authors
Donna J. Shaver
Winter biomass and nutrient values of three seagrass species as potential foods for redheads (Aythya americana eyton) in Chandeleur Sound, Louisiana Winter biomass and nutrient values of three seagrass species as potential foods for redheads (Aythya americana eyton) in Chandeleur Sound, Louisiana
We studied biomass and macronutrient content ofHalodule wrightii (shoalgrass) throughout the winter and ofThalassia testudinum (turtlegrass) andSyringodium filiforme (manateegrass) in January in Chandeleur Sound, LouisianaHalodule, the primary fcod of wintering redheads, had the lowest biomass of the three species on the study area in mid-winter. Macronutrient content ofHalodule did not...
Authors
Thomas C. Michot, Paul C. Chadwick
The use of GIS technology to support environmental monitoring and assessment programs-Estuaries activities The use of GIS technology to support environmental monitoring and assessment programs-Estuaries activities
No abstract available.
Authors
James B. Johnston, Kevin Summers, P. E. Bourgeois, Vince Sclafani
Monitoring Hurricane Andrew damage and recovery of the coastal Louisiana marsh using satellite remote sensing data Monitoring Hurricane Andrew damage and recovery of the coastal Louisiana marsh using satellite remote sensing data
No abstract available.
Authors
Elijah Ramsey III, S. Laine, Dirk Werle, Brian Tittley, David Lapp
Virtual reality for natural resource management: A concept paper Virtual reality for natural resource management: A concept paper
No abstract available.
Authors
Scott A. Wilson, Vince Sclafani
The use of videography to assess the spatial impact of hurricanes on forest ecosystems The use of videography to assess the spatial impact of hurricanes on forest ecosystems
No abstract available.
Authors
Thomas W. Doyle, K. W. Krauss, C.J. Wells, M. R. Roberts
The distribution of wetland and deepwater habitats in the San Francisco Bay region The distribution of wetland and deepwater habitats in the San Francisco Bay region
No abstract available.
Authors
Michael Josselyn, Lawrence R. Handley, Millicent L. Quammen, Dennis Peters
Nest monitoring using a micro-video camera Nest monitoring using a micro-video camera
A system is described that utilizes a battery operated micro-video camera mounted on an extendible pole for monitoring high nests. The video image is transmitted to a hand-held monitor at ground level and provides accurate information about the contents of high nests.
Authors
Keith Ouchley, Robert B. Hamilton, Scott A. Wilson
Separation of selenium species released from Se-exposed algae Separation of selenium species released from Se-exposed algae
We have assessed a fractionation scheme for selenium species that separates Se-containing amino acids and other organoselenium compounds in aqueous samples. We investigated the retention of standard solutions of selenate (Se+6), selenite (Se+4), and selenomethionine (Se−2) by fractionation media (Sephadex A-25 ion-exchange resin, copper-treated Chelex-100 ligand-exchange resin, and...
Authors
John M. Besser, James N. Huckins, Randal C. Clark
Physiological changes and tissue metal accumulation in rainbow trout exposed to foodborne and waterborne metals Physiological changes and tissue metal accumulation in rainbow trout exposed to foodborne and waterborne metals
Sublethal physiological effects and metal residue accumulation in tissues were measured in adult and juvenile rainbow trout fed a metal-contaminated diet and/or exposed to waterborne metals for 21 d. The consumption of metal-contaminated invertebrates from the Clark Fork River, Montana, significantly affected scale loss and metal accumulation in gut tissue of adult trout. Survival, scale...
Authors
Aida M. Farag, Connie J. Boese, Harold L. Bergman, D. F. Woodward