Dataset

Rockfish Recruitment and Ecosystem Assessment Survey, Catch Data

OBIS USA Open in mapper Explore occurrences

The Fisheries Ecology Division (FED, https://swfsc.noaa.gov/GroundfishAnalysis/) of the Southwest Fisheries Science Center (SWFSC) has conducted a midwater trawl survey off central California since 1983 with the primary goal of developing pre-recruit indices for young-of-the-year (YOY) rockfish (Sebastes spp.). The survey also samples numerous other components of the epipelagic micronekton, including other YOY groundfish (such as Pacific hake, Merluccius productus, and sanddab, Citharichthys spp ), coastal pelagic fishes (such as Pacific sardine, Sardinops sagax, and northern anchovy, Engraulis mordax) and other forage species. Additional details regarding the survey methods and results are described in Ralston et al. (2015) and Sakuma et al. ( http://calcofi.org/publications/calcofireports/v57/Vol57-Sakuma_pages.163-183.pdf). Ralston, S., J.C. Field and K.S. Sakuma. 2015. Longterm variation in a central California pelagic forage assemblage. Journal of Marine Systems 146: 26-37. http://dx.doi.org/10.1016/j.jmarsys.2014.06.013. Sakuma, K.M., J.C. Field, B.B. Marinovic, C.N. Carrion, N.J. Mantua and S. Ralston. In revision. Anomalous epipelagic micronekton assemblage patterns in the neritic waters of the California Current in spring 2015 during a period of extreme ocean conditions. CalCOFI Reports.

Published: November 15, 2019 at 21:54

URL: https://ipt-obis.gbif.us/resource?r=rockfishrecruitmentandecosystemassessmentsurveycatchdata

471,986
occurrence records
167
taxa
115
species

Taxa

Missing and invalid fields

Field Missing Invalid
coordinateUncertaintyInMeters 471,986
100.0%
scientificNameID 2,562
0.5%

Quality flags

The OBIS data quality flags are documented at https://github.com/iobis/obis-qc.

Flag Dropped Records
NO_ACCEPTED_NAME 5,124
1.1%
MARINE_UNSURE 2,562
0.5%
NO_MATCH 2,562
0.5%

Measurement types

DNA derived data