Species · accepted · checked 2026-08-05

Enhydra lutris

Sea Otter

WoRMS 242598ITIS 180547key worms:242598

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

Silhouette · Margot Michaud · CC0 1.0 · PhyloPic, drawn from Enhydra lutris

Sea Otter1.5 m

a person1.7 m

max · sealifebase

(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

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

Observed in
i
One row per dataset, 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.

Seabirds & Marine Mammals 2 obs · 2 events · 2003–2020
name used: Enhydra lutris Sea Otter · code SEOT

How big is it
i
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.

Groups

calcofi:marine_mammals

Ways in
i
Read from taxa.json of release v2026.09.11, written at release by calcofi4db::build_taxa_catalog(). The catalog's index is /species/.

Explorer db-query

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

Enhydra lutris

How big is itiEvery 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.

Groups

Ways iniRead from taxa.json of release v2026.09.11, written at release by calcofi4db::build_taxa_catalog(). The catalog's index is /species/.

How big is it
i
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.

Ways in
i
Read from taxa.json of release v2026.09.11, written at release by calcofi4db::build_taxa_catalog(). The catalog's index is /species/.