The Shellfish Sampling Station datalayer was compiled by the Department of Fisheries, Wildlife and Environmental Law Enforcement's (DFWELE) Division of Marine Fisheries (DMF) to show Approximately twenty-seven hundred station locations in Massachusetts.
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MethodologyThe station locations were defined by DMF shellfish project biologists. Compilation base maps covering the entire coast and islands were plotted at 1:12,000 using hydrography from 1:24,000 USGS DLG; 1:100,000 USGS DLG; and 1:25,000 USGS Topographic maps, all modified and enhanced by MassGIS. Other information such as town boundaries, the territorial waters line and roads were plotted on these base maps for reference. Shellfish project biologists compiled station locations on to the base maps, and these points were then digitized by DMF GIS personnel. Check plots were created and station locations QA/QC'd by the biologists.
ProductionSeparate 11 x 17 color plots were produced for each growing area based on the map extent of the area and its sampling stations. Station points needing to be moved or added are compiled on these plots and automated by DMF GIS staff. A new 11 x 17 is produced and kept on file until another station change occurs.
AttributesThe layer's point attribute table contains the following items:
|SHLFSHST-ID||Station id number.|
|GRW_AREACD||Designated shellfish growing area code. Each classification station is associated to one designated shellfish growing area.|
|CL_AREANM||Classification area name. Each classification station is also associated to one classification area (which is a sub-area of a designated shellfish growing area).|
|STAT_TYPE||Station type. In all cases this is CLASSIFICATION.|
|STAT_DATE||Date station was established.|
MaintenanceThe Division of Marine Fisheries and MassGIS are maintaining this datalayer. The MA Division of Marine Fisheries and MassGIS are maintaining this datalayer. For further information about this coverage and other data associated with these stations, contact the MA Division of Marine Fisheries Shellfish Project at either Pocasset (508-563-1779) or Newburyport (978-465-3553).
Last Updated 9/30/2008
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