Unified Interior Regions

Region 4: Mississippi Basin

Regions L2 Landing Page Tabs

Filter Total Items: 4,622
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Year Published: 1988

Field validation of a habitat suitability index model for the American oyster

A habitat suitability index (HSI) model, developed for the American oyster,Crassostrea virginica, along the Gulf of Mexico, was field tested on 38 0.1-ha reef and nonreef sites in Galveston Bay, Texas. The HSI depends upon six (HSI1) or, optionally, eight (HSI2) variables. The six variables are percent of bottom covered with suitable cultch (V1),...

Soniat, Thomas M.; Brody, Michael S.

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Year Published: 1988

Workshop summary: Habitat loss and its effect on waterfowl

No abstract available.

Stewart, Robert E.; Krapu, Gary; Conant, Bruce; Percival, H. Franklin; Hall, David L.

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Year Published: 1988

Habitat relationships of island nesting seabirds along Coastal Louisiana

Seabirds in the saline marsh of coastal Louisiana nest on the islands that are more isolated, smaller, have lower percentages of woody vegetation, and higher percentages of herbaceous vegetation and beach habitat. Only moderate variation in these habitat features was demonstrated among years of colonization. The factors causing these preferences...

Greer, Richard D.; Cordes, Carroll L.; Anderson, Stanley H.

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Year Published: 1988

Biochemical changes in longear sunfish, Lepomis megalotis, associated with lead, cadmium and zinc from mine tailings

Longear sunfish were collected from a stream contaminated with mine tailings rich in lead (Pb), cadmium (Cd) and zinc (Zn). Blood samples were analysed for δ-aminolevulinic acid dehydratase (ALA-D) activity and Pb concentration. Vertebrae were tested for bone strength and composition, and Pb, Zn, and Cd concentrations were determined in muscle...

Dwyer, F.J.; Schmitt, C.J.; Finger, S.E.; Mehrle, P. M.

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Year Published: 1988

The ecology of the soft-bottom benthos of San Francisco Bay: a community profile

This profile, part of a series of profiles concerning coastal habitats of the United States, is a detailed examination of the soft-bottom benthos of San Francisco Bay. A U.S. Fish and Wildlife Service and California Department of Fish and Game report (1979) entitled "Protection and Restoration of San Francisco Bay Fish and Wildlife Habitat"...

Nichols, Frederic H.; Pamatmat, Mario M.
The ecology of the soft-bottom benthos of San Francisco Bay: a community profile; 1988; Federal Government Series; 85(7.23); Nichols, Frederic H.; Pamatmat, Mario M.

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Year Published: 1988

Use of GIS technologies in addressing resource management problems in Mobile Bay, Alabama

Geographic Information Systems (GIS) technologies are being used in three neutral resource management studies of Mobile Bay, AL. Each study is briefly discussed. In the first, the GIS was used to analyze wetland habitat changes in the bay over a 25-year period. In the second, cartographic modeling techniques are being used to assess the potential...

Watzin, Mary C.; Roscigno, P.F.; Scurry, James D.; Roach, E. Randy

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Year Published: 1988

Aircraft MSS data registration and vegetation classification of wetland change detection

Portions of the Savannah River floodplain swamp were evaluated for vegetation change using high resolution (5a??6 m) aircraft multispectral scanner (MSS) data. Image distortion from aircraft movement prevented precise image-to-image registration in some areas. However, when small scenes were used (200-250 ha), a first-order linear transformation...

Christensen, E.J.; Jensen, J.R.; Ramsey, Elijah W.; Mackey, H.E.
Aircraft MSS data registration and vegetation classification of wetland change detection; 1988; Article; Journal; International Journal of Remote Sensing; Christensen, E.J.; Jensen, J.R.; Ramsey, E.W., III; Mackey, H.E., Jr.

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Year Published: 1988

Environmental impacts and regulatory policy. Implications of spray disposal of dredged material in Louisiana wetlands

The capabilities of a new wetland dredging technology were assessed along with associated newly developed state and federal regulatory policies to determine if policy expectations realistically match the technological achievement. Current regulatory practices require amelioration of spoil bank impacts upon abandonment of an oil/gas well, but this...

Cahoon, Donald R.; Cowan, J.H.

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Year Published: 1988

Fuelwood production and use in rural Swaziland: a case-study of two communities

Information of fuelwood consumption and the local production of wood was collected in two small rural communities in Swaziland. Fuelwood consumption was estimated to be 0.77 t persona??1 yeara??1 in one community (Sigombeni), and 0.63 t persona??1 in the other (Bhekinkhosi). Bhekinkhosi was found to be experiencing a significant fuelwood...

Allen, J. A.; Pimentel, D.P.; Lasoie, J.P.
Fuelwood production and use in rural Swaziland: a case-study of two communities; 1988; Article; Journal; Forest Ecology and Management; Allen, J.A.; Pimentel, D.P.; Lasoie, J.P.