CalCOFI.io CalCOFI.io open data ecosystem
Species · accepted · checked 2026-08-05

Hansarsia tenella

WoRMS 1649791key worms:1649791
Silhouette · Steven Haddock · Public Domain Mark · PhyloPic, drawn from Euphausia pacifica
Hansarsia tenella2.1 cm
US quarter2.4 cm

max · sealifebase

Nematoscelis mantis, d'apres Chun. Subject: Nematoscelis Tag: Shellfish
Photo · Jules Richard · Public domain · commons

CalCOFI holds 636 observations of it in 1 dataset between 1951 and 2019, as juvenile, adult, furcilia and 2 more stages.R

636
observations
636
records
465
sampling events
1951–2019
years
1
datasets
juvenile · adult · furcilia · calyptopis · larvae
life stages

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.

  • Euphausiids (Krill) 636 obs · 465 events · 1951–2019 · juvenile · adult · furcilia · calyptopis · larvae
    name used: Nematoscelis tenella · code 18 synonym

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/.

Explorerdb-query
ERDDAPCalCOFI's own server, the Euphausiids (Krill) table constrained to this taxon
https://erddap.calcofi.io/erddap/tabledap/cce-lter_euphausiids.html?&taxon_key=%22worms:1649791%22