AQUATIC VEGETATION MAP
LAYER: SEAGRASS
DIRECTORY: /AEDATA/Environmental/seagrass.shp
DIRECTORY: Volusia.SDE/Environmental/seagrass_poly
TYPE: POLYGON
	Shapefile is downloadable from https://maps.vcgov.org/gis/download/shapes.htm REST Service: Seagrass Statewide
	Abstract: Aquatic vegetation in Volusia County. This polygon GIS data set represents a compilation of statewide seagrass data from various source agencies and scales. The data were mapped from sources ranging in date from 1987 to 2018. Not all data in this compilation are mapped from photography; some are the results of field measurements. See the "Sources" section for more information. The original source data sets were not all classified in the same manner; some used the Florida Land Use Cover and Forms Classification System (FLUCCS) codes 9113 for discontinuous seagrass and 9116 for continuous seagrass; some defined only presence and absence of seagrass, and some defined varying degrees of seagrass percent cover. In order to merge all of these data sources into one compilation data set, FWRI reclassified the various source data attribute schemes into two categories: "Continuous Seagrass" and "Patchy (Discontinuous) Seagrass". In areas where studies overlap, the most recent study where a given area has been interpreted is represented in this data set. This data set is not comparable to previous statewide data sets for time series studies - not all areas have been updated since the previous statewide compilation and some areas previously not mapped are now included. Please contact GIS Librarian to request the source data if you need to do a time series comparison. This data set has been updated in several areas from the previous compilation, including Naples Bay (2007), Choctawhatchee Bay (2007) and the Florida Panhandle (2010), Florida Bay (2016), portions of the Caloosahatchee, Loxahatchee, and St. Lucie Rivers (2011), Lake Worth Lagoon (2013), Rookery Bay (2014), Estero Bay and the West Coast (2014), Indian River Lagoon (2017), the Springs Coast (2016) and Southwest Florida (2018). Version 2 of the Unified Florida Reef Tract Map, with seagrass data ranging in source date from 2004-2015, has also been integrated into this compilation to represent the most recent data available from St. Lucie County to the Dry Tortugas in Florida Keys. The original statewide data has been clipped in this polygon file to include only those areas within Volusia County. Source: FWC-FWRI (Florida Fish and Wildlife Conservation Commission - Fish and Wildlife Research Institute) (https://geodata.myfwc.com/datasets/seagrass-habitat-in-florida) See Complete Metadata For questions concerning the data, please contact the FWRI GIS Librarian: GIS Data Librarian 100 Eighth Avenue SE Fish and Wildlife Research Institute St. Petersburg, FL 33701 Phone: 727-896-8626 Fax: 727-893-1679 Email: GISLibrarian@MyFWC.com
	Update Frequency: Not Planned. Annual review. Last update 1/25/2021.
	Spatial Domain
	West Coordinate:	-81.359054
	East Coordinate:	-80.928748
	North Coordinate:	29.246552
	South Coordinate:	28.846581
	Spatial Data Information
	Data Type:	digital map
	Data Format:	SDE Feature Class
	Data Projection:	NAD_1983_HARN_StatePlane_Florida_East_FIPS_0901_Feet

FIELDS
NAME	DESCRIPTION
OBJECTID	Internal feature number
DESCRIPT	Description of submerged aquatic vegetation
SOURCEDATE	Ground condition date of source data
METADATA	This field will contain a hyperlink to metadata for the source data of each polygon (not currently operational)
SEAGRASS	Description of seagrass density. The user should be aware that different sources and scales of seagrass information and classification systems were used to create this dataset.
Last_edite	Date of last edit by FWC-FWRI staff

CODE DESCRIPTIONS

DESCRIPT	DESCRIPTION
Discontinuous	Discontinuous seagrass may range from 0 to 90% ground cover
Continuous	Continuous seagrass may range from 85% ground cover to 100%.