Dataset

NCOS1959_Crustacea

SEA OBIS 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. This dataset contains the Crustacea data.

Published: November 10, 2025 at 15:14

URL: http://ipt.iobis.org/seaobis/resource?r=ncos1959_crustacea

25,793
occurrence records
899
taxa
584
species

Taxa

Missing and invalid fields

Field Missing Invalid
coordinateUncertaintyInMeters 25,793
100.0%
eventDate 25,793
100.0%
maximumDepthInMeters 25,793
100.0%
minimumDepthInMeters 25,793
100.0%
occurrenceStatus 25,793
100.0%
scientificNameID 858 88
3.7%

Quality flags

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

Flag Dropped Records
NO_DEPTH 25,793
100.0%
NO_MATCH 451
1.7%
ON_LAND 100
0.4%
NO_ACCEPTED_NAME 51
0.2%
WORMS_ANNOTATION_RESOLVABLE 32
0.1%
MARINE_UNSURE 1
0.0%

Measurement types

DNA derived data