CalCOFI.io CalCOFI.io open data ecosystem

Scomber japonicus

Pacific mackerel (chub mackerel)

Speciesaccepted · checked 2026-08-05WoRMS 127022ITIS 172412key worms:127022
i

2026-08-05: itis_id 172412 via WoRMS external link

The chub mackerel, Pacific mackerel, or Pacific chub mackerel is a species of fish in the tuna and mackerel family, Scombridae. This species of mackerel closely resembles the Atlantic chub mackerel.W CalCOFI holds 2,989 observations of it in 1 dataset between 1951 and 2022, as larva and egg.R

2,989
observations
2,989
records
2,780
sampling events
1951–2022
years
1
datasets
larva · egg
life stages
64 cm
max length
Photograph of Scomber japonicus
Photo · Dragan Maksimovic · CC BY-SA 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.

  • 2,989 obs2,780 events1951–2022larva · egg
    name used: Scomber japonicus Pacific mackerel (chub mackerel) · code 574

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:127022%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 64 cm max · egg 1.06–1.14 mm
Pacific mackerel64 cm
bongo net ring71 cm

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 13 ranks · Biota to Scomber
Credits silhouette · photo · text · length · plate
  • Silhouette · kstierhoff · CC0 1.0 · PhyloPic, drawn from Scomber japonicus · source
  • Photo · Dragan Maksimovic · CC BY-SA 4.0 · inat · source
  • Text · Wikipedia, “Chub mackerel” · CC BY-SA 4.0 · revision 1358442541
  • Length · worms_attribute
  • Plate · Matarese, Kendall, Blood & Vinter 1989, NOAA Tech. Rep. NMFS 80, via the AFSC Ichthyoplankton Information System · Public domain (US Government work) · noaa_iis · source
Elsewhere Wikidata · iNaturalist · FishBase · GBIF

WikidataiNaturalistFishBaseGBIF

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 ↗