Dataset

NCOS

OBIS Secretariat Open in mapper Explore occurrences

The Database of NCOS-China includes records of specimen collected in the Marine Biological Museum of Chinese Academy of Sciences during the National Comprehensive Oceanographic Survey (NCOS) from 1958 to 1960. The surveyed area covered the coast of China Seas, including the Bohai Sea, the Yellow Sea, the East China Sea and the South China Sea, almost 1200 sampling stations. Most taxa of marine invertebrates were obtained in this survey.

URL: http://ipt.obis.org/nonode/resource?r=ncos

7,956
occurrence records
223
taxa
133
species

Taxa

Missing and invalid fields

Field Missing Invalid
coordinateUncertaintyInMeters 7,956
100.0%
eventDate 7,956
100.0%
maximumDepthInMeters 7,956
100.0%
minimumDepthInMeters 7,956
100.0%
occurrenceStatus 7,956
100.0%
scientificNameID 98
1.2%

Quality flags

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

Flag Dropped Records
NO_DEPTH 7,956
100.0%
NO_MATCH 71
0.9%
ON_LAND 28
0.4%
WORMS_ANNOTATION_RESOLVABLE 24
0.3%
MARINE_UNSURE 8
0.1%
NO_ACCEPTED_NAME 8
0.1%

Measurement types

DNA derived data