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 150.512. California Academy of Sciences. Occurrence dataset. http://ipt.calacademy.org:8080/resource?r=ich&v=150.512

Published: February 02, 2026 at 22:37

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

Jon Fong
California Academy of Sciences

219,805
occurrence records
10,730
taxa
9,210
species

Taxa

Missing and invalid fields

Field Missing Invalid
coordinateUncertaintyInMeters 125,420 65
57.1%
decimalLatitude 34,860
15.9%
decimalLongitude 34,871
15.9%
eventDate 35,008 1
15.9%
maximumDepthInMeters 154,018
70.1%
minimumDepthInMeters 127,357 2
57.9%
occurrenceStatus 219,805
100.0%
scientificName 2,820
1.3%
scientificNameID 219,805
100.0%

Quality flags

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

Flag Dropped Records
NO_DEPTH 127,250
57.9%
ON_LAND 67,091
30.5%
NO_COORD 34,879
15.9%
NOT_MARINE 33,216
15.1%
NO_MATCH 18,174
8.3%
DEPTH_EXCEEDS_BATH 8,670
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