Dataset

CAS Ichthyology (ICH)

OBIS USA Open in mapper Explore occurrences

The electronic catalog of the ichthyology collection at the California Academy of Sciences, San Francisco.

Citation: Fong J (2025). CAS Ichthyology (ICH). Version 150.504. California Academy of Sciences. Occurrence dataset. http://ipt.calacademy.org:8080/resource?r=ich&v=150.504

Published: December 08, 2025 at 22:36

URL: http://ipt.calacademy.org:8080/resource?r=ich

Jon Fong
California Academy of Sciences

219,353
occurrence records
10,722
taxa
9,210
species

Taxa

Missing and invalid fields

Field Missing Invalid
coordinateUncertaintyInMeters 125,139 65
57.1%
decimalLatitude 34,673
15.8%
decimalLongitude 34,684
15.8%
eventDate 34,973 1
15.9%
maximumDepthInMeters 153,617
70.0%
minimumDepthInMeters 126,974 2
57.9%
occurrenceStatus 219,353
100.0%
scientificName 2,820
1.3%
scientificNameID 219,353
100.0%

Quality flags

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

Flag Dropped Records
NO_DEPTH 126,867
57.8%
ON_LAND 67,014
30.6%
NO_COORD 34,692
15.8%
NOT_MARINE 33,175
15.1%
NO_MATCH 18,115
8.3%
DEPTH_EXCEEDS_BATH 8,658
3.9%
NO_ACCEPTED_NAME 93
0.0%
MARINE_UNSURE 90
0.0%
DEPTH_OUT_OF_RANGE 2
0.0%

Measurement types

DNA derived data