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 (2026). CAS Ichthyology (ICH). Version 150.518. California Academy of Sciences. Occurrence dataset. http://ipt.calacademy.org:8080/resource?r=ich&v=150.518

Published: March 16, 2026 at 22:36

License: To the extent possible under law, the publisher has waived all rights to these data and has dedicated them to the Public Domain (CC0 1.0)

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

Contacts:

Jon Fong
California Academy of Sciences

220,009
occurrence records
10,730
taxa
9,210
species

Taxa

Missing and invalid fields

Field Missing Invalid
coordinateUncertaintyInMeters 125,548 65
57.1%
decimalLatitude 34,967
15.9%
decimalLongitude 34,978
15.9%
eventDate 34,760 3
15.8%
maximumDepthInMeters 154,201
70.1%
minimumDepthInMeters 127,546 2
58.0%
occurrenceStatus 220,009
100.0%
scientificName 2,817
1.3%
scientificNameID 220,009
100.0%

Quality flags

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

Flag Dropped Records
NO_DEPTH 127,432
57.9%
ON_LAND 67,109
30.5%
NO_COORD 34,986
15.9%
NOT_MARINE 33,215
15.1%
NO_MATCH 18,188
8.3%
DEPTH_EXCEEDS_BATH 8,672
3.9%
NO_ACCEPTED_NAME 93
0.0%
MARINE_UNSURE 90
0.0%
DATE_BEFORE_MIN 2
0.0%
DEPTH_OUT_OF_RANGE 2
0.0%

Measurement types

DNA derived data