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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
Tank
Patent for a tank that filters.
Date:
January 23, 1917
Creator:
Gartrell, Clifford E.
Object Type:
Patent
System:
The Portal to Texas History
P.L. 94-171 County Block Map (2010 Census): Brazoria County, Block 21
Parent map for Brazoria County, Texas showing the area of one geographic block for which the U.S. Census Bureau collected data. The plotted map scale is 1:15,000.
Date:
January 11, 2011
Creator:
United States. Bureau of the Census.
Object Type:
Map
System:
The Portal to Texas History
P.L. 94-171 County Block Map (2010 Census): Brazoria County, Block 29
Parent map for Brazoria County, Texas showing the area of one geographic block for which the U.S. Census Bureau collected data. The plotted map scale is 1:15,000.
Date:
January 11, 2011
Creator:
United States. Bureau of the Census.
Object Type:
Map
System:
The Portal to Texas History
P.L. 94-171 County Block Map (2010 Census): Brazoria County, Block 30
Parent map for Brazoria County, Texas showing the area of one geographic block for which the U.S. Census Bureau collected data. The plotted map scale is 1:15,000.
Date:
January 11, 2011
Creator:
United States. Bureau of the Census.
Object Type:
Map
System:
The Portal to Texas History
P.L. 94-171 County Block Map (2010 Census): Brazoria County, Block 37
Parent map for Brazoria County, Texas showing the area of one geographic block for which the U.S. Census Bureau collected data. The plotted map scale is 1:15,000.
Date:
January 11, 2011
Creator:
United States. Bureau of the Census.
Object Type:
Map
System:
The Portal to Texas History
P.L. 94-171 County Block Map (2010 Census): Brazoria County, Block 38
Parent map for Brazoria County, Texas showing the area of one geographic block for which the U.S. Census Bureau collected data. The plotted map scale is 1:15,000.
Date:
January 11, 2011
Creator:
United States. Bureau of the Census.
Object Type:
Map
System:
The Portal to Texas History
P.L. 94-171 County Block Map (2010 Census): Brazoria County, Block 43
Parent map for Brazoria County, Texas showing the area of one geographic block for which the U.S. Census Bureau collected data. The plotted map scale is 1:15,000.
Date:
January 11, 2011
Creator:
United States. Bureau of the Census.
Object Type:
Map
System:
The Portal to Texas History
P.L. 94-171 County Block Map (2010 Census): Brazoria County, Block 44
Parent map for Brazoria County, Texas showing the area of one geographic block for which the U.S. Census Bureau collected data. The plotted map scale is 1:15,000.
Date:
January 11, 2011
Creator:
United States. Bureau of the Census.
Object Type:
Map
System:
The Portal to Texas History
P.L. 94-171 County Block Map (2010 Census): Brazoria County, Block 47
Parent map for Brazoria County, Texas showing the area of one geographic block for which the U.S. Census Bureau collected data. The plotted map scale is 1:15,000.
Date:
January 11, 2011
Creator:
United States. Bureau of the Census.
Object Type:
Map
System:
The Portal to Texas History
P.L. 94-171 County Block Map (2010 Census): Brazoria County, Index
Index map for Brazoria County, Texas showing the distribution of census blocks and smaller inset areas for which the U.S. Census Bureau collected data. The plotted map scale is 1:138,173.
Date:
January 11, 2011
Creator:
United States. Bureau of the Census.
Object Type:
Map
System:
The Portal to Texas History