Description: The Aquaculture Vulnerability Model (AVM) was developed to assist current and future shellfish growers identify locations where current condition could support an aquaculture growing operation in Virginia waters. The work to develop this model came first from efforts to identify use conflicts in the shallow water zone; where aquaculture generally occurs. Later, supporting geospatial data allowed for a more focused model to help delineate where aquaculture was possible based on physical and biological conditions present. More recently, the model was expanded to consider how both policy, regulation, and land use practices guide where aquaculture is possible and practical. With funding from NOAA Sea Grant, the AVM was developed and applied to both clam and oyster aquaculture across the entire Tidewater Virginia, and expanded to include oyster aquaculture in the Chesapeake and inland bays of Maryland.Parameters used in the model are average salinity, bathymetry, location of submerged aquatic vegetation (SAV), water quality (shellfish closures reflecting fecal coliform measurements), land use, and regulatory data (sanctuaries and public shellfish grounds).
Definition Expression: N/A
Copyright Text: Center for Coastal Resources Management (CCRM), 2015. Aquaculture Vulnerability Model, V3., Virginia Institute of Marine Science (VIMS), Gloucester Point, Virginia 23062.
Description: The Aquaculture Vulnerability Model (AVM) was developed to assist current and future shellfish growers identify locations where current condition could support an aquaculture growing operation in Virginia waters. The work to develop this model came first from efforts to identify use conflicts in the shallow water zone; where aquaculture generally occurs. Later, supporting geospatial data allowed for a more focused model to help delineate where aquaculture was possible based on physical and biological conditions present. More recently, the model was expanded to consider how both policy, regulation, and land use practices guide where aquaculture is possible and practical. With funding from NOAA Sea Grant, the AVM was developed and applied to both clam and oyster aquaculture across the entire Tidewater Virginia, and expanded to include oyster aquaculture in the Chesapeake and inland bays of Maryland.Parameters used in the model are average salinity, bathymetry, location of submerged aquatic vegetation (SAV), water quality (shellfish closures reflecting fecal coliform measurements), land use, and regulatory data (sanctuaries and public shellfish grounds).
Definition Expression: N/A
Copyright Text: Center for Coastal Resources Management (CCRM), 2015. Aquaculture Vulnerability Model, V3., Virginia Institute of Marine Science (VIMS), Gloucester Point, Virginia 23062.
Description: This polygon shapefile delineates current (2009) obvious aquaculture boundaries in Virginia. The data was limited by the imagery where high tides made it difficult to delineate some boundaries.
Description: This polygon shapefile delineates current (2013) obvious aquaculture boundaries in Virginia. The data was limited by the imagery where high tides made it difficult to delineate some boundaries
Description: The 2017 Chesapeake Bay SAV Coverage was mapped from digital multispectral imagery with a 25cm GSD to assess water quality in the Bay. Each area of SAV was interpreted from the rectified imagry and classified into one of four density classes by the percentage of cover. The SAV beds were entered into an SDE GIS fetaure class using the quality control procedures documented below. The dataset contains all SAV areas that were identified from the areas flown. Some areas that are presumed to contain no SAV were not flown. Some small beds, particularly along narrow tributaries may not have been distinguishable on the aerial photography.
Definition Expression: N/A
Copyright Text: SAV Ecology, Monitoring, & Restoration Program, Virginia Institute of Marine Science