Ecotrust 20120730 raster digital data http://bios.dfg.ca.gov/ http://oceanspaces.org/data/assessing-spatial-and-socioeconomic-change-central-coast-commercial-and-cpfv-fisheries-final http://oceanspaces.org/data/rocky-habitat-analysis-spatial-change-analysis-spatial-data-sets-available-and-recommendations ftp://ftp.dfg.ca.gov/BDB/GIS/BIOS/Public_Datasets/1000_1099/ds1085.zip This data set is a part of Ecotrust's project entitled: Establishing a Baseline and Assessing Spatial and Socioeconomic Change in the California Central Coast Commercial and CPFV Fisheries. This project is a component of the California Central Coast Marine Protected Area Baseline Monitoring Project that is designed to characterize the ecological and socioeconomic conditions and changes within the Central Coast Region since MPA implementation. The Central Coast study region extends from the north at Pigeon Point to the south at Point Conception. These data depict the spatial change in the stated relative value of commercial fishing grounds difference for spatial fisheries data collected in the spring of 2012 (post-MPAs) and summer of 2005 (pre-MPAs). Specifically, the data were calculated by subtracting the post-MPA relative value surface data from the pre-MPA relative value surface data (x = pre-MPA - post-MPA). It is important to emphasize that only the relative value surface (also known as a 'heat map') that was developed for the pre and post MPA data sets were used in these analyses. In other words, ex-vessel revenue was not applied to the 'heat map' value surfaces, however ex-vessel revenue was used to weight and the aggregation of individual fishing grounds. This was done to reduce the number of variables which would influence analysis results. Thus, results are simply an examination of changes in the stated values/importance of fishing areas to a fishery?not spatial changes in revenue across the two datasets. The data ranges from negative to positive values on a relative scale. In this dataset the areas with negative values are areas where the post-MPA fishing values are greater than the pre-MPA values, thus an increase in relative importance and value between the 2005 survey to the 2012 survey. This dataset represents the spatial change in relative value for California halibut--hook and line commercial fishing grounds for the Central Coast Region. The primary goal of this project was to collect up-to-date information on historical trends, current socioeconomic conditions, and the spatial distribution and relative economic value of key commercial fisheries and the commercial passenger fishing vessel fleet in the Central Coast Region. 20120101 ground condition Complete As needed -122.481897 -120.462923 37.302748 34.406270 None Marine Protected Area (MPA) Marine Life Protection Act (MLPA) fishing socioeconomic baseline monitoring monitoring spatial change halibut ISO 19115 Topic Category biota location None California Central Coast California None Contact Ecotrust about using this data. Ecotrust Charles Steinback Director, Marine Spatial Planning mailing and physical

721 NW 9th Ave.

Ste. 200

Portland OR 97209 US (503) 467-0777 charles@ecotrust.org Microsoft Windows 7 Version 6.1 (Build 7601) Service Pack 1; Esri ArcGIS 10.3.1.4959 Data was derived from interviews with fishermen and each fisherman gave boundaries to their fishing grounds and the value attributed to those grounds. Not all fishermen have the same method for describing their fishing areas, so there is variability in the results. Some fishermen would give very detailed areas and other fishermen would give less detailed areas. All data is overlaid on NOAA nautical charts, with all layers sharing the same projection. Updated the pre-MPA and post-MPA data for each port and region wide data set so the null values were equal to zero. Made a list of comparable data based on participation. Used the raster calculator to subtract post-MPA data from the pre-MPA data(x=pre-MPA - post-MPA). Trimmed the raster product to the full extent of both pre-MPA and post-MPA fishery area. Raster Grid Cell NAD 1983 Albers 34.0 40.5 -120.0 0.0 0.0 -4000000.0 coordinate pair 0.000000003754707655900803 0.000000003754707655900803 meter D North American 1983 GRS 1980 6378137.0 298.257222101 Value Negative values are areas where the post-MPA fishing values are greater than the pre-MPA values, thus an increase in relative importance and value between the 2005 survey to the 2012 survey 20160419 Ecotrust Charles Steinback Director, Marine Spatial Planning mailing and physical

721 NW 9th Ave.

Ste. 200

Portland OR 97209 US (503) 467-0777 charles@ecotrust.org FGDC Content Standard for Digital Geospatial Metadata FGDC-STD-001-1998 local time