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Commercial Fishing Blocks - R7 - CDFW [ds3204]

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California State Geoportal2026-03-28 收录
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<div style='text-align:Left;'><div><div><p><span>The feature is (primarily) a 10' latitude x 10' longitudinal vector grid that defines spatial units for summarizing commercial fishing off the coast of California. The grid cells start at 32° 10.0' N latitude (just below the U.S. / Mexico border) and continue northward to 42° 40.0' N latitude (just north of the California / Oregon border). This file was generated by a fishnet (XTools) function run in ArcGIS 10.6.1 and the index IDs were transferred from the previous file through a spatial join. </span></p><p><span>The origin of these block definitions can be found in CDFG Fish Bulletin 44 - The Commercial Fish Catch of California for the Years 1930-1934, Inclusive and CDFG Fish Bulletin 86 - The Commercial Fish Catch of California for the Year 1950 with A Description of Methods Used in Collecting and Compiling the Statistics. Some revision of block boundaries and indices occurred in the late 1990's or early 2000 (exact date unknown). </span></p><p><span>Improvements over the previous version include correction to a small shift in cell positions, adjustments to blocks around the Mexican border and addition the large offshore 4-digit blocks previously managed in a separate file. </span></p><p><span>Attributes: </span></p><ul><li><p><span>Block_ID: Unique identifier for commercial fishing block. </span></p></li><li><p><span>locationDescription: Generalized description of block location. </span></p></li></ul></div></div></div>
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