Analyses/Maps

Fish

Species Diversity of Demersal Fish

Species diversity of demersal fish was calculated for NMFS trawls on the shelf and slope at depths between 50 and 1280 meters. The mean diversity recorded for trawls (± standard deviation) was 1.5±0.5. Species diversity results are displayed for individual trawls, as well as mean diversity for 5' grid cells. The largest cluster of high species diversity trawls is found 20 km north and south of the border between Monterey Bay NMS and Gulf of the Farallones NMS. Smaller clusters of high diversity values are present in the northwest corner of Cordell Bank NMS and to the north and south of the NMS boundaries in waters slightly deeper than the 200 meter contour line.