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12 Matching Results
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Remote Sensing and GIS for Nonpoint Source Pollution Analysis in the City of Dallas' Eastern Watersheds
This report describes the findings of a study conducted on the Eastern Watersheds of Lake Lavon, Lake Ray Hubbard, Lake Tawakoni, Lake Palestine and Lake Fork, which are located within the Blackland Prairie, Post Oak Savannah and Pineywoods provinces. These watersheds are among nine that provide drinking water to Dallas, Texas. The study examines the potential benefit of "remote sensing and geographic information systems (GIS) for watershed management" in these five watersheds (p. iii).
Date:
June 1989
Creator:
University of North Texas. Department of Biological Sciences.
Object Type:
Book
System:
The UNT Digital Library
Potamilus purpuratus, Specimen #607
One preserved mussel specimen including the right valve only. The specimen exhibits a rhomboidal shape; thick shell; white internal coloring; dark brown external coloring; no external sculpturing. Collected in the Trinity basin. The specimen measures between 0 - 60 mm in length and was assessed to be relatively-recently dead when collected.
Date:
March 17, 1972
Creator:
Pettit, J.
Object Type:
Specimen
System:
The UNT Digital Library
Toxolasma texasense, Specimen #1123
One preserved mussel specimen including the left valve only. The specimen exhibits an elliptical shape; moderately thick shell; single looped beak sculpturing; white internal coloring; dark brown external coloring; no external sculpturing. Collected in the Trinity basin. The specimen measures between 0 - 60 mm in length and was assessed to be long dead when collected.
Date:
March 1, 1972
Creator:
Pettit, J.
Object Type:
Specimen
System:
The UNT Digital Library
Potamilus amphichaenus, Specimen #608
One preserved mussel specimen including the left valve only. The specimen exhibits an elliptical shape; thin shell; bluish-white internal coloring; olive external coloring; no external sculpturing. Collected in the Trinity basin. The specimen measures between 60 - 100 mm in length and was assessed to be recently dead when collected.
Date:
December 4, 1971
Creator:
Britton, Joseph
Object Type:
Specimen
System:
The UNT Digital Library
Uniomerus tetralasmus, Specimen #1240
One preserved mussel specimen including the left valve only. The specimen exhibits an elliptical shape; thin shell; bluish-white internal coloring; tan external coloring; no external sculpturing. Collected in the Trinity basin. The specimen measures between 60 - 100 mm in length and was assessed to be recently dead when collected.
Date:
December 4, 1971
Creator:
unknown
Object Type:
Specimen
System:
The UNT Digital Library
Uniomerus tetralasmus, Specimen #1241
One preserved mussel specimen including the right valve only. The specimen exhibits an elliptical shape; thin shell; bluish-white internal coloring; tan external coloring; no external sculpturing. Collected in the Trinity basin. The specimen measures between 0 - 60 mm in length and was assessed to be recently dead when collected.
Date:
December 4, 1971
Creator:
unknown
Object Type:
Specimen
System:
The UNT Digital Library
Uniomerus tetralasmus, Specimen #1242
One preserved mussel specimen including the left valve only. The specimen exhibits an elliptical shape; thin shell; bluish-white internal coloring; tan external coloring; no external sculpturing. Collected in the Trinity basin. The specimen measures between 0 - 60 mm in length and was assessed to be recently dead when collected.
Date:
December 4, 1971
Creator:
unknown
Object Type:
Specimen
System:
The UNT Digital Library
Uniomerus tetralasmus, Specimen #1243
One preserved mussel specimen including the left valve only. The specimen exhibits an elliptical shape; thin shell; bluish-white internal coloring; tan external coloring; no external sculpturing. Collected in the Trinity basin. The specimen measures between 0 - 60 mm in length and was assessed to be recently dead when collected.
Date:
December 4, 1971
Creator:
unknown
Object Type:
Specimen
System:
The UNT Digital Library
Uniomerus tetralasmus, Specimen #1244
One preserved mussel specimen including the right valve only. The specimen exhibits an elliptical shape; thin shell; bluish-white internal coloring; tan external coloring; no external sculpturing. Collected in the Trinity basin. The specimen measures between 0 - 60 mm in length and was assessed to be recently dead when collected.
Date:
December 4, 1971
Creator:
unknown
Object Type:
Specimen
System:
The UNT Digital Library
Uniomerus tetralasmus, Specimen #1245
One preserved mussel specimen including the right valve only. The specimen exhibits an elliptical shape; thin shell; bluish-white internal coloring; tan external coloring; no external sculpturing. Collected in the Trinity basin. The specimen measures between 0 - 60 mm in length and was assessed to be recently dead when collected.
Date:
December 4, 1971
Creator:
unknown
Object Type:
Specimen
System:
The UNT Digital Library
Uniomerus tetralasmus, Specimen #1246
One preserved mussel specimen including both the left and right valves. The specimen exhibits an elliptical shape; thin shell; bluish-white internal coloring; brown external coloring; no external sculpturing. Collected in the Trinity basin. The specimen measures between 60 - 100 mm in length and was assessed to be recently dead when collected.
Date:
December 4, 1971
Creator:
unknown
Object Type:
Specimen
System:
The UNT Digital Library
Uniomerus tetralasmus, Specimen #1247
One preserved mussel specimen including the left valve only. The specimen exhibits an elliptical shape; thin shell; bluish-white internal coloring; tan external coloring; no external sculpturing. Collected in the Trinity basin. The specimen measures between 0 - 60 mm in length and was assessed to be relatively-recently dead when collected.
Date:
December 4, 1971
Creator:
unknown
Object Type:
Specimen
System:
The UNT Digital Library