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 150.522. California Academy of Sciences. Occurrence dataset. http://ipt.calacademy.org:8080/resource?r=ich&v=150.522

Published: May 11, 2026 at 22:36

First registration: October 14, 2022 at 13:35

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

220,200
occurrence records
10,739
taxa
9,210
species

Taxa

Missing and invalid fields

Field Missing Invalid
coordinateUncertaintyInMeters 125,678 67
57.1%
decimalLatitude 35,069
15.9%
decimalLongitude 35,080
15.9%
eventDate 34,742 3
15.8%
maximumDepthInMeters 154,381
70.1%
minimumDepthInMeters 127,721 2
58.0%
occurrenceStatus 220,200
100.0%
scientificName 2,819
1.3%
scientificNameID 220,200
100.0%

Quality flags

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

Flag Dropped Records
NO_DEPTH 127,606
58.0%
ON_LAND 67,133
30.5%
NO_COORD 35,088
15.9%
NOT_MARINE 33,220
15.1%
NO_MATCH 18,196
8.3%
DEPTH_EXCEEDS_BATH 8,676
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