CalCOFI.io CalCOFI.io open data ecosystem

Enhydra lutris

Sea Otter

Speciesaccepted · checked 2026-08-05WoRMS 242598ITIS 180547key worms:242598
i

2026-08-05: itis_id 180547 via WoRMS external link

calcofi:marine_mammals

The sea otter is a marine mammal native to the coasts of the northern and eastern North Pacific Ocean. Adult sea otters typically weigh between 14 and 45 kg (30–100 lb), making them the heaviest members of the weasel family, but among the smallest marine mammals.W CalCOFI holds 2 observations of it in 1 dataset between 2003 and 2020.R

2
observations
2
records
2
sampling events
2003–2020
years
1
datasets
1.5 m
max length
(2nd best of 3) Sea Otter (Enhydra lutris) mother with nursing pup in the Morro Bay harbor, Morro Bay, CA. 27 Oct. 2008. Michael "Mike" L. Baird, Canon 1D Mark III, 600mm f/4 IS with circular polarize
Photo · Mike Baird from Morro Bay, USA · CC BY 2.0 · commons

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.

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:242598%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 1.5 m max
Sea Otter1.5 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 Enhydra
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 ↗