Shellfish Suitability Areas - June 2004

Metadata:


Identification_Information:
Citation:
Citation_Information:
Originator: Massachusetts Office of Coastal Zone Management
Publication_Date: 2004
Title:
Shellfish Suitability Areas - June 2004
Geospatial_Data_Presentation_Form: vector digital data
Online_Linkage: \\Bison\buffalo\nps\Databases\Submerged\CACO\SHELLFISHSUIT_POLY.shp
Description:
Abstract:
This layer was developed by DMF in collaboration with the Massachusetts Office of Coastal Zone Management (CZM) and the National Oceanographic and Atmospheric Administration (NOAA) Coastal Services Center (CSC).

The Shellfish Suitability Areas layer comprises polygons representing habitats suitable for ten species of shellfish along the coast of Massachusetts. The ten species are:
American Oyster
Bay Scallop
Blue Mussel
European Oyster
Ocean Quahog
Quahog
Razor Clam
Sea Scallop
Soft-shelled Clam
Surf Clam

The polygons delineate areas that are believed to be suitable for shellfish based on the expertise of the Massachusetts Division of Marine Fisheries (DMF), the opinion of local Massachusetts Shellfish Constables, and information contained in maps and studies of shellfish in Massachusetts. The areas covered include sites where shellfish have historically been sighted, but may not currently support any shellfish. The shellfish suitability areas were not verified in the field and the boundaries were not surveyed. For these reasons, the areas should be used only as guides to the approximate locations of potential habitats.
Supplemental_Information:
CZM will send any updates to MassGIS for distribution.
Time_Period_of_Content:
Time_Period_Information:
Single_Date/Time:
Calendar_Date: REQUIRED: The year (and optionally month, or month and day) for which the data set corresponds to the ground.
Currentness_Reference:
REQUIRED: The basis on which the time period of content information is determined.
Status:
Progress: REQUIRED: The state of the data set.
Maintenance_and_Update_Frequency: REQUIRED: The frequency with which changes and additions are made to the data set after the initial data set is completed.
Spatial_Domain:
Bounding_Coordinates:
West_Bounding_Coordinate: -71.288093
East_Bounding_Coordinate: -69.885198
North_Bounding_Coordinate: 42.876694
South_Bounding_Coordinate: 41.190438
Keywords:
Theme:
Theme_Keyword_Thesaurus: REQUIRED: Reference to a formally registered thesaurus or a similar authoritative source of theme keywords.
Theme_Keyword: REQUIRED: Common-use word or phrase used to describe the subject of the data set.
Native_Data_Set_Environment:
Microsoft Windows XP Version 5.1 (Build 2600) Service Pack 2; ESRI ArcCatalog 9.2.2.1350
Back to Top
Data_Quality_Information:
Lineage:
Process_Step:
Process_Description:
This layer was developed by DMF in collaboration with the Massachusetts Office of Coastal Zone Management (CZM) and the National Oceanographic and Atmospheric Administration (NOAA) Coastal Services Center (CSC).   

Areas determined to be suitable for the ten species of shellfish were hand drawn on overlays using either the DMF Designated Shellfish Growing Areas or NOAA Nautical Charts as base maps. The CSC digitized the maps by scanning the overlays and vectorizing the scanned lines. The maps were then checked for accuracy and any missing or incorrectly vectorized lines were corrected. The polygon lines were then snapped directly to the MassGIS 1:25,000 shoreline and edited for consistency with the polygon on the base maps.

The layer was then turned into an ArcInfo coverage and was cleaned and built to create polygons. The base maps were then used to code each of the polygons in the layer. When all of the sheets were completed they were checked for errors and quality assurance. Printed maps of the problem areas with the data were sent to the DMF for correction. The corrected information was then returned to the CSC contractors and the appropriate corrections were made. The maps were separated into individual layers for each species and saved as shapefiles. The corrections were returned to the DMF for a final check and minor corrections were incorporated by CZM.

MassGIS combined the ten separate shapefiles into one ArcSDE layer, with each polygon coded for the species potentially present in that area. Because of the merge of the ten layers, overlapping polygons exist in many areas.
Process_Step:
Process_Description:
Dataset copied.
Source_Used_Citation_Abbreviation:
\\Milton\F\CACO\CACO_BISON\SHELLFISHSUIT_POLY
Back to Top
Spatial_Data_Organization_Information:
Direct_Spatial_Reference_Method: Vector
Point_and_Vector_Object_Information:
SDTS_Terms_Description:
SDTS_Point_and_Vector_Object_Type: G-polygon
Point_and_Vector_Object_Count: 2513
Back to Top
Spatial_Reference_Information:
Horizontal_Coordinate_System_Definition:
Planar:
Grid_Coordinate_System:
Grid_Coordinate_System_Name: State Plane Coordinate System 1983
State_Plane_Coordinate_System:
SPCS_Zone_Identifier: 2001
Lambert_Conformal_Conic:
Standard_Parallel: 41.716667
Standard_Parallel: 42.683333
Longitude_of_Central_Meridian: -71.500000
Latitude_of_Projection_Origin: 41.000000
False_Easting: 200000.000000
False_Northing: 750000.000000
Planar_Coordinate_Information:
Planar_Coordinate_Encoding_Method: coordinate pair
Coordinate_Representation:
Abscissa_Resolution: 0.000000
Ordinate_Resolution: 0.000000
Planar_Distance_Units: meters
Geodetic_Model:
Horizontal_Datum_Name: North American Datum of 1983
Ellipsoid_Name: Geodetic Reference System 80
Semi-major_Axis: 6378137.000000
Denominator_of_Flattening_Ratio: 298.257222
Back to Top
Entity_and_Attribute_Information:
Detailed_Description:
Entity_Type:
Entity_Type_Label: SHELLFISHSUIT_POLY
Attribute:
Attribute_Label: FID
Attribute_Definition:
Internal feature number.
Attribute_Definition_Source:
ESRI
Attribute_Domain_Values:
Unrepresentable_Domain:
Sequential unique whole numbers that are automatically generated.
Attribute:
Attribute_Label: Shape
Attribute_Definition:
Feature geometry.
Attribute_Definition_Source:
ESRI
Attribute_Domain_Values:
Unrepresentable_Domain:
Coordinates defining the features.
Attribute:
Attribute_Label: OBJECTID
Attribute:
Attribute_Label: HABITAT
Attribute_Definition:
coded for the species potentially present in the polygon
Attribute_Definition_Source:
Mass GIS
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: AO
Enumerated_Domain_Value_Definition:
American Oyster
Enumerated_Domain:
Enumerated_Domain_Value: BS
Enumerated_Domain_Value_Definition:
Bay Scallop
Enumerated_Domain:
Enumerated_Domain_Value: BM
Enumerated_Domain_Value_Definition:
Blue Mussel
Enumerated_Domain:
Enumerated_Domain_Value: EO
Enumerated_Domain_Value_Definition:
European Oyster
Enumerated_Domain:
Enumerated_Domain_Value: OQ
Enumerated_Domain_Value_Definition:
Ocean Quahog
Enumerated_Domain:
Enumerated_Domain_Value: Q
Enumerated_Domain_Value_Definition:
Quahog
Enumerated_Domain:
Enumerated_Domain_Value: RC
Enumerated_Domain_Value_Definition:
Razor Clam
Enumerated_Domain:
Enumerated_Domain_Value: SS
Enumerated_Domain_Value_Definition:
Sea Scallop
Enumerated_Domain:
Enumerated_Domain_Value: SSC
Enumerated_Domain_Value_Definition:
Soft Shell Clam
Enumerated_Domain:
Enumerated_Domain_Value: SC
Enumerated_Domain_Value_Definition:
Surf Clam
Attribute:
Attribute_Label: SHAPE_AREA
Attribute_Definition:
Area of feature in square meters
Attribute_Definition_Source:
ESRI
Attribute_Domain_Values:
Unrepresentable_Domain:
Positive real numbers that are automatically generated.
Attribute:
Attribute_Label: SHAPE_LEN
Attribute_Definition:
Length of feature in meters
Back to Top
Distribution_Information:
Resource_Description: Downloadable Data
Standard_Order_Process:
Digital_Form:
Digital_Transfer_Information:
Transfer_Size: 5.876
Back to Top
Metadata_Reference_Information:
Metadata_Date: 20070829
Metadata_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: REQUIRED: The organization responsible for the metadata information.
Contact_Person: REQUIRED: The person responsible for the metadata information.
Contact_Address:
Address_Type: REQUIRED: The mailing and/or physical address for the organization or individual.
City: REQUIRED: The city of the address.
State_or_Province: REQUIRED: The state or province of the address.
Postal_Code: REQUIRED: The ZIP or other postal code of the address.
Contact_Voice_Telephone: REQUIRED: The telephone number by which individuals can speak to the organization or individual.
Metadata_Standard_Name: FGDC Content Standards for Digital Geospatial Metadata
Metadata_Standard_Version: FGDC-STD-001-1998
Metadata_Time_Convention: local time
Metadata_Extensions:
Online_Linkage: http://www.esri.com/metadata/esriprof80.html
Profile_Name: ESRI Metadata Profile
Back to Top