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Comparison of Two Sampling Methods for Estimating Zooplankton Densities in Fish Culture Ponds
Report discussing results of a study comparing selected zooplankton population densities estimated by pooling samples - from five locations in saltwater fish culture ponds with one sample collected from a single pond location.
Date:
January 1986
Creator:
Colura, Robert L. & Matlock, Gary C.
Object Type:
Report
System:
The Portal to Texas History
Lane City Southeast Quadrangle
Topographic map of a portion of Texas from the United States Geological Survey (USGS) project. The map includes towns, historic or notable sites, bodies of water, and other geologic features. Scale 1:24,000
Date:
1980
Creator:
Geological Survey (U.S.)
Object Type:
Map
System:
The Portal to Texas History
Lane City Quadrangle
Topographic map of a portion of Texas from the United States Geological Survey (USGS) project. The map includes towns, historic or notable sites, bodies of water, and other geologic features. Scale 1:24,000
Date:
1980
Creator:
Geological Survey (U.S.)
Object Type:
Map
System:
The Portal to Texas History
Matagorda Southwest Quadrangle
Topographic map of a portion of Texas from the United States Geological Survey (USGS) project. The map includes towns, historic or notable sites, bodies of water, and other geologic features. Scale 1:24,000
Date:
1989
Creator:
Geological Survey (U.S.)
Object Type:
Map
System:
The Portal to Texas History
Brown Cedar Cut Quadrangle
Topographic map of a portion of Texas from the United States Geological Survey (USGS) project. The map includes towns, historic or notable sites, bodies of water, and other geologic features. Scale 1:24,000
Date:
1989
Creator:
Geological Survey (U.S.)
Object Type:
Map
System:
The Portal to Texas History
Dressing Point Quadrangle
Topographic map of a portion of Texas from the United States Geological Survey (USGS) project. The map includes towns, historic or notable sites, bodies of water, and other geologic features. Scale 1:24,000
Date:
1989
Creator:
Geological Survey (U.S.)
Object Type:
Map
System:
The Portal to Texas History
Matagorda Quadrangle
Topographic map of a portion of Texas from the United States Geological Survey (USGS) project. The map includes towns, historic or notable sites, bodies of water, and other geologic features. Scale 1:24,000
Date:
1989
Creator:
Geological Survey (U.S.)
Object Type:
Map
System:
The Portal to Texas History
Cedar Lakes West Quadrangle
Topographic map of a portion of Texas from the United States Geological Survey (USGS) project. The map includes towns, historic or notable sites, bodies of water, and other geologic features. Scale 1:24,000
Date:
1989
Creator:
Geological Survey (U.S.)
Object Type:
Map
System:
The Portal to Texas History
Sargent Quadrangle
Topographic map of a portion of Texas from the United States Geological Survey (USGS) project. The map includes towns, historic or notable sites, bodies of water, and other geologic features. Scale 1:24,000
Date:
1989
Creator:
Geological Survey (U.S.)
Object Type:
Map
System:
The Portal to Texas History
Lake Austin Quadrangle
Topographic map of a portion of Texas from the United States Geological Survey (USGS) project. The map includes towns, historic or notable sites, bodies of water, and other geologic features. Scale 1:24,000
Date:
1989
Creator:
Geological Survey (U.S.)
Object Type:
Map
System:
The Portal to Texas History
Pass Cavallo Southwest Quadrangle
Topographic map of a portion of Texas from the United States Geological Survey (USGS) project. The map includes towns, historic or notable sites, bodies of water, and other geologic features. Scale 1:24,000
Date:
1989
Creator:
Geological Survey (U.S.)
Object Type:
Map
System:
The Portal to Texas History
South Of Palacios Point Quadrangle
Topographic map of a portion of Texas from the United States Geological Survey (USGS) project. The map includes towns, historic or notable sites, bodies of water, and other geologic features. Scale 1:24,000
Date:
1989
Creator:
Geological Survey (U.S.)
Object Type:
Map
System:
The Portal to Texas History
Decros Point Quadrangle
Topographic map of a portion of Texas from the United States Geological Survey (USGS) project. The map includes towns, historic or notable sites, bodies of water, and other geologic features. Scale 1:24,000
Date:
1989
Creator:
Geological Survey (U.S.)
Object Type:
Map
System:
The Portal to Texas History
Port O'Connor Quadrangle
Topographic map of a portion of Texas from the United States Geological Survey (USGS) project. The map includes towns, historic or notable sites, bodies of water, and other geologic features. Scale 1:24,000
Date:
1989
Creator:
Geological Survey (U.S.)
Object Type:
Map
System:
The Portal to Texas History
Carancahua Pass Quadrangle
Topographic map of a portion of Texas from the United States Geological Survey (USGS) project. The map includes towns, historic or notable sites, bodies of water, and other geologic features. Scale 1:24,000
Date:
1980
Creator:
Geological Survey (U.S.)
Object Type:
Map
System:
The Portal to Texas History
Palacios Point Quadrangle
Topographic map of a portion of Texas from the United States Geological Survey (USGS) project. The map includes towns, historic or notable sites, bodies of water, and other geologic features. Scale 1:24000
Date:
1986
Creator:
Geological Survey (U.S.)
Object Type:
Map
System:
The Portal to Texas History
Blessing Quadrangle
Topographic map of a portion of Texas from the United States Geological Survey (USGS) project. The map includes towns, historic or notable sites, bodies of water, and other geologic features. Scale 1:24000
Date:
1985
Creator:
Geological Survey (U.S.)
Object Type:
Map
System:
The Portal to Texas History
Danciger Quadrangle
Topographic map of a portion of Texas from the United States Geological Survey (USGS) project. The map includes towns, historic or notable sites, bodies of water, and other geologic features. Scale 1:24000
Date:
1981
Creator:
Geological Survey (U.S.)
Object Type:
Map
System:
The Portal to Texas History
Seguin
Topographic map of a portion of Texas from the United States Geological Survey (USGS) project. The map includes towns, historic or notable sites, bodies of water, and other geologic features. Scale 1:250000
Date:
1984
Creator:
Geological Survey (U.S.)
Object Type:
Map
System:
The Portal to Texas History
Lane City Southeast Quadrangle
Topographic map of a portion of Texas from the United States Geological Survey (USGS) project. The map includes towns, historic or notable sites, bodies of water, and other geologic features. Scale 1:24000
Date:
1980
Creator:
Geological Survey (U.S.)
Object Type:
Map
System:
The Portal to Texas History
Pledger Quadrangle
Topographic map of a portion of Texas from the United States Geological Survey (USGS) project. The map includes towns, historic or notable sites, bodies of water, and other geologic features. Scale 1:24000
Date:
1981
Creator:
Geological Survey (U.S.)
Object Type:
Map
System:
The Portal to Texas History
Palacios Southeast Quadrangle
Topographic map of a portion of Texas from the United States Geological Survey (USGS) project. The map includes towns, historic or notable sites, bodies of water, and other geologic features. Scale 1:24000
Date:
1982
Creator:
Geological Survey (U.S.)
Object Type:
Map
System:
The Portal to Texas History
Lane City Quadrangle
Topographic map of a portion of Texas from the United States Geological Survey (USGS) project. The map includes towns, historic or notable sites, bodies of water, and other geologic features. Scale 1:24000
Date:
1980
Creator:
Geological Survey (U.S.)
Object Type:
Map
System:
The Portal to Texas History
Van Vleck Quadrangle
Topographic map of a portion of Texas from the United States Geological Survey (USGS) project. The map includes towns, historic or notable sites, bodies of water, and other geologic features. Scale 1:24000
Date:
1980
Creator:
Geological Survey (U.S.)
Object Type:
Map
System:
The Portal to Texas History