CalCOFI.io CalCOFI.io open data ecosystem

Atractoscion nobilis

White seabass

Speciesaccepted · checked 2026-08-05WoRMS 278535ITIS 169387GBIF 2400362key worms:278535
i

2026-08-05: itis_id 169387 via WoRMS external link

The white seabass or white weakfish, Atractoscion nobilis, is a species of croaker occurring from Magdalena Bay, Baja California Sur, to Juneau, Alaska. They usually travel in schools over deep rocky bottoms and in and out of kelp beds.W CalCOFI holds 122 observations of it in 1 dataset between 1959 and 2022, as larva and egg.R

122
observations
122
records
121
sampling events
1959–2022
years
1
datasets
larva · egg
life stages
1.7 m
max length
Photograph of Atractoscion nobilis
Photo · mornelas · CC BY-NC 4.0 · inat NC

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.

  • 122 obs121 events1959–2022larva · egg
    name used: Atractoscion nobilis White seabass · code 609

Ways inExplorerdb-queryERDDAPRPythonThis page as JSON

Code and endpoints ERDDAP · R · Python · JSON
ERDDAPCalCOFI's own server, the Ichthyoplankton table constrained to this taxon
https://erddap.calcofi.io/erddap/tabledap/swfsc_ichthyo.html?&taxon_key=%22worms:278535%22

Read from taxa.json of release v2026.10.19, written at release by calcofi4db::build_taxa_catalog(). The catalog's index is /species/.

How big is it 1.7 m max
White seabass1.7 m
a person1.7 m

max · worms_attribute

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.

Life stages larva · egg
  • Ichthyoplankton larva · egg

The stages each dataset records for it, from the release's obs_bio.life_stage. Their lengths are under How big is it.

Lineage 12 ranks · Biota to Atractoscion
Credits silhouette · photo · text · length
Elsewhere Wikidata · iNaturalist · FishBase

WikidataiNaturalistFishBase

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

Cite the release, v2026.10.19

Cite the release, v2026.10.19; each dataset's own citation, licence and DOI are on its page. How to cite ↗