California Commercial fisheries refactored landings summarized to CRFS micro-blocks

This layer is the output of spatial modeling developed by Ecotrust in 2021. The goal of this modeling effort was to create a spatial dataset that provides a better understanding of fishing patterns in and around California state MPAs in the years 2005-2020. Model outputs were created for nearshore finfish group including individual species as follows: Black Rockfish, Black-Yellow Rockfish, Blue Rockfish, Brown Rockfish, Cabezon, California Scorpionfish, California Sheephead, China Rockfish, Copper Rockfish, Gopher Rockfish, Grass Rockfish, Kelp Greenling, Kelp Rockfish, Monkeyface Prickleback, Olive Rockfish, Quillback Rockfish, Treefish Rockfish. Layers were also created for spiny lobster and red urchin. To complete this spatial modeling Ecotrust used two data sources, commercial fishing landings receipts from California Department of Fish and Wildlife (CDFW) and spatial layers of fishing areas developed by Ecotrust based on in-person interviews to support the MPA network development and implementation. The data were summarized to the California Recreational Fisheries Survey (CRFS) micro-blocks. See below for more information about CRFS micro-blocks. For decades California fishery reporting and management has been organized and documented using a 10 minute lat-long (10') grid, known colloquially as 'California Trawl Blocks'. In recent years, however, a need has developed for finer (smaller area) grid blocks to record catch and develop habitat maps and models, especially in coastal nearshore waters and for residential and sessile species. This shapefile of 1 minute lat-long (1') blocks was created to nest within the original 10' lat-long blocks, thus allowing the transfer of 10' historic and current catch data to each of the 100 1' cells within. The 1' blocks in this shapefile extend inland to include coastal areas, estuaries and bays. This shapefile is a polygon file, not a raster file, therefore, area for each 1' cell may be unique.10/27/2012 - Caltrawl blocks 538,547,548,549,550, 553, 554,555,556, & 557 contained incorrect lables for index (used old index starting at 1). Correction made redindexing blocks to start with 0.