CalCOFI.io CalCOFI.io open data ecosystem

Zalophus californianus

California Sea Lion

Speciesaccepted · checked 2026-08-05WoRMS 255003ITIS 180621key worms:255003
i

2026-08-05: itis_id 180621 via WoRMS external link

calcofi:marine_mammals

The California sea lion is a coastal eared seal native to western North America. It is one of six species of sea lions.W CalCOFI holds 1,470 observations of it in 1 dataset between 1987 and 2020.R

1,470
observations
1,470
records
1,470
sampling events
1987–2020
years
1
datasets
2.4 m
max length
Photograph of Zalophus californianus
Photo · Liam Steele · CC BY 4.0 · inat

Observed in 1 dataset
i

One row per dataset, and beside it one cell per year, darker with more observations — the same strip the front door draws per dataset. Each row ends with the name that dataset uses (dataset_taxon); the accepted name is written once, in the title above. A quiet pill marks a name the authority does not accept.

  • 1,470 obs1,470 events1987–2020
    name used: Zalophus californianus California Sea Lion · code CASL

Ways inExplorerdb-queryERDDAPRPythonThis page as JSON

Code and endpoints ERDDAP · R · Python · JSON
ERDDAPCalCOFI's own server, the Seabirds & Marine Mammals table constrained to this taxon
https://erddap.calcofi.io/erddap/tabledap/farallon_bird-mammal.html?&taxon_key=%22worms:255003%22

Read from taxa.json of release v2026.10.20, written at release by calcofi4db::build_taxa_catalog(). The catalog's index is /species/.

How big is it 2.4 m max
California Sea Lion2.4 m
a person1.7 m

max · sealifebase

Every mark is a measured length with its own source — hover one to read it. The reference objects are _data/size_reference.csv: two of them, the 505 µm bongo mesh and the net's ring, are CalCOFI's own sampling gear.

Lineage 13 ranks · Biota to Zalophus
Credits silhouette · photo · text · length
Elsewhere Wikidata · iNaturalist · GBIF

WikidataiNaturalistGBIF

The same organism on the services the faces were fetched from; the authorities' own pages are the ids in the head.

Cite the release, v2026.10.20

Cite the release, v2026.10.20; each dataset's own citation, licence and DOI are on its page. How to cite ↗