These data sets exist in raster and vector formats. The areas in this data set were determined from USGS Terrapin studies (for more information contact Paula Henry, 410-465-0550 or paula.henry@usgs.gov), DNR studies conducted by Margaret Whilden, and a terrapin study conducted by Willem Roosenburg (contact information can be acquired from Harley Speir of DNR Fisheries Service). For extent acquracies please contact the project lead for each study. Secondary habitats were delineated using sandy beach data from VIMS and salinity data from Lee Karrh of DNR. Sandy beach areas were selected and exported from the source file and then combined with the salinity data to determine sensitivity importance levels. These data sets were then converted to raster format and reclassified with a rank determined by DNR biologists. This rank determines level of habitat importance with spawning areas ranking highest and adult areas of bay depth below 3 feet ranking the lowest. These ranked rasters were then stacked and an output raster was created showing areas of high habitat diversity. These rasters were then clipped by county.

These data sets exist in raster and vector formats. The areas in this data set were derived from sitings called in and tracked by Steve Doctor at Matapeake. These sitings were located as points on a map that were contributed by Mr. Doctor and Nancy Butowski, DNR Fisheries Service. Professional guidance was provided by Nancy Butowski and Steve Doctor. The areas were then located on the VIMS shoreline data set and exported as an independent data set. These data sets were then converted to raster format and reclassified with a rank determined by DNR biologists. This rank determines level of habitat importance with spawning areas ranking highest and adult areas of bay depth below 3 feet ranking the lowest. These ranked rasters were then stacked and an output raster was created showing areas of high habitat diversity. These rasters were then clipped by county.

These datasets exist in raster and vector formats. The vector format was created from the SHA Shoreline file and graphic representations in the Lippson book (See bibliography below). These areas were then overlane with a point file created from lat/long collected during the surveys conducted by O'dell, Mowrer, and Uphoff of MD DNR Fisheries Service. This was done to verify that the graphic representations were accurate. These data sets were then converted to raster format and reclassified with a rank determined by DNR biologists. This rank determines level of habitat importance with spawning areas ranking highest and adult areas of bay depth below 3 feet ranking the lowest. These ranked rasters were then stacked and an output raster was created showing areas of high habitat diversity. These rasters were then clipped by county. Lippson, Alice Jane."the Chesapeake Bay in Maryland. an atlas of natural resources." the Johns Hopkins University Press. Baltimore and London, 1973.

These datasets exist in raster and vector formats. The vector format was created from the SHA Shoreline file and graphic representations in the Lippson book (See bibliography below). These areas were then overlane with a point file created from lat/long collected during the surveys conducted by O'dell, Mowrer, and Uphoff of MD DNR Fisheries Service. This was done to verify that the graphic representations were accurate. These data sets were then converted to raster format and reclassified with a rank determined by DNR biologists. This rank determines level of habitat importance with spawning areas ranking highest and adult areas of bay depth below 3 feet ranking the lowest. These ranked rasters were then stacked and an output raster was created showing areas of high habitat diversity. These rasters were then clipped by county. Lippson, Alice Jane."the Chesapeake Bay in Maryland. an atlas of natural resources." the Johns Hopkins University Press. Baltimore and London, 1973.

These datasets exist in raster and vector formats. The vector format was created from the SHA Shoreline file and graphic representations in the Lippson book (See bibliography below). These areas were then overlane with a point file created from lat/long collected during the surveys conducted by O'dell, Mowrer, and Uphoff of MD DNR Fisheries Service. This was done to verify that the graphic representations were accurate. These data sets were then converted to raster format and reclassified with a rank determined by DNR biologists. This rank determines level of habitat importance with spawning areas ranking highest and adult areas of bay depth below 3 feet ranking the lowest. These ranked rasters were then stacked and an output raster was created showing areas of high habitat diversity. These rasters were then clipped by county. Lippson, Alice Jane."the Chesapeake Bay in Maryland. an atlas of natural resources." the Johns Hopkins University Press. Baltimore and London, 1973.

These data include estimates of landcover and land use characteristics including high phytoestrogen crop cover, estimated pesticide applications, EPA PFAS facilities, nutrients from biosolids, and select climate (temperature and precipitation) variables summarized for several fish health sites in the eastern United States.

This dataset was derived from CAD data originally published in URS Greiner Woodward Clyde, 1999, Environmental Investigation: Former U.S. Coast Guard LORAN Station, Tern Island, French Frigate Shoals, Hawaii. URS Greiner Woodward Clyde (URSGWC) was retained by the United States Coast Guard (USCG) Civil Engineering Unit (CEU) to conduct an environmental investigation at the former USCG long range navigation (LORAN) station on Tern Island. The investigation concentrated on the northwestern corner of Tern Island where the greatest environmental impact from the US military's past occupation of the island appears to have occurred.

This dataset was derived from CAD data originally published in URS Greiner Woodward Clyde, 1999, Environmental Investigation: Former U.S. Coast Guard LORAN Station, Tern Island, French Frigate Shoals, Hawaii. URS Greiner Woodward Clyde (URSGWC) was retained by the United States Coast Guard (USCG) Civil Engineering Unit (CEU) to conduct an environmental investigation at the former USCG long range navigation (LORAN) station on Tern Island. The investigation concentrated on the northwestern corner of Tern Island where the greatest environmental impact from the US military's past occupation of the island appears to have occurred.

These datasets exist in raster and vector formats. The vector format was created from the SHA Shoreline file and graphic representations in the Lippson book (See bibliography below). These areas were then overlane with a point file created from lat/long collected during the surveys conducted by O'dell, Mowrer, and Uphoff of MD DNR Fisheries Service. This was done to verify that the graphic representations were accurate. These data sets were then converted to raster format and reclassified with a rank determined by DNR biologists. This rank determines level of habitat importance with spawning areas ranking highest and adult areas of bay depth below 3 feet ranking the lowest. These ranked rasters were then stacked and an output raster was created showing areas of high habitat diversity. These rasters were then clipped by county. Lippson, Alice Jane."the Chesapeake Bay in Maryland. an atlas of natural resources." the Johns Hopkins University Press. Baltimore and London, 1973.

These datasets exist in raster and vector formats. The vector format was created from the SHA Shoreline file and graphic representations in the Lippson book (See bibliography below). These areas were then overlane with a point file created from lat/long collected during the surveys conducted by O'dell, Mowrer, and Uphoff of MD DNR Fisheries Service. This was done to verify that the graphic representations were accurate. These data sets were then converted to raster format and reclassified with a rank determined by DNR biologists. This rank determines level of habitat importance with spawning areas ranking highest and adult areas of bay depth below 3 feet ranking the lowest. These ranked rasters were then stacked and an output raster was created showing areas of high habitat diversity. These rasters were then clipped by county. Lippson, Alice Jane."the Chesapeake Bay in Maryland. an atlas of natural resources." the Johns Hopkins University Press. Baltimore and London, 1973.