Euphausiids (Krill)
CCE-LTER Euphausiid Abundance
cce-lter_euphausiidsCCE-LTERCustom terms stated by the providerdoi:10.6073/pasta/4a92a0044bcd1523a4f994ece874a57dv2026.09.05ingested
- years
- 1951–2019
- observations
- 100,505
- sampling events
- 7,477
- stations
- 114
- taxa
- 37
Overview
Species- and life-stage-resolved euphausiid (krill) abundance from CalCOFI / CCE-LTER net tows (BTEDB export), 1951-present, one row per tow x species x life stage. Supersedes the prior single-Abundance- column ingest, which had no taxonomic scope (Q02, now resolved) — units remain provisional pending provider confirmation (Q01).
Coverage
1 variable
Life stages
adultcalyptopiscalyptopis C1calyptopis C2calyptopis C3damagedfurciliafurcilia F1furcilia F2furcilia F3furcilia F4furcilia F5furcilia F6furcilia F7juvenilelarvaemetanauplius
Access
Every endpoint this dataset can be reached through, grouped by how you would use it. Every URL is in the release record and answered when the release was cut.
Explore
Apps that read this dataset from the release. A row marked “this dataset” opens with it already selected.
https://calcofi.io/explore/?datasets=cce-lter_euphausiids
https://app.calcofi.io/station/?dataset=cce-lter_euphausiids
https://app.calcofi.io/hex/?datasets=cce-lter_euphausiids
https://app.calcofi.io/cruise/?datasets=cce-lter_euphausiids
https://calcofi.io/2026-ucsb-station-data-portal/
Query
SQL against the release itself, in the browser — nothing to install and nothing downloaded until a query asks for it. __TBL:obs__ resolves to the pinned release’s parquet.
-- cce-lter_euphausiids in the CalCOFI release v2026.09.05
SELECT *
FROM __TBL:obs__
WHERE dataset_key = 'cce-lter_euphausiids'
LIMIT 100;https://calcofi.io/db-query/?sql=--+cce-lter_euphausiids+in+the+CalCOFI+release+v2026.09.05%0ASELECT+%2A%0AFROM+__TBL%3Aobs__%0AWHERE+dataset_key+%3D+%27cce-lter_euphausiids%27%0ALIMIT+100%3B#sql-shell--shell
Code
The same release, from a script.
con <- calcofi4r::cc_get_db()
calcofi4r::cc_cite("cce-lter_euphausiids")con = calcofi4py.cc_get_db()
calcofi4py.cite("cce-lter_euphausiids")SELECT * FROM read_parquet('https://storage.googleapis.com/calcofi-db/ducklake-staging/tables/obs/dataset_key=cce-lter_euphausiids/eb06f688035ebc51fe036938/data_0.parquet') LIMIT 100;Get the data
Every way to have the bytes, by source. Nothing here asks you to register first.
Files from the release (Parquet)
The frozen objects this release is made of. A partition holds only this dataset’s rows; a shared table holds every dataset’s, so filter on dataset_key.
https://storage.googleapis.com/calcofi-db/ducklake-staging/tables/obs/dataset_key=cce-lter_euphausiids/eb06f688035ebc51fe036938/data_0.parquet
CF netCDF
One self-describing file, for a tool that reads netCDF.
how far this file is CF
Fully CF: each row is an independent observation with its own time and position, which is a CF point collection. Rows are at the OCCURRENCE grain (event x taxon x life stage x depth), not the event grain, so a sample with many taxa contributes many points. This dataset records no observation depth; CF's point feature does not require one.
https://storage.calcofi.io/calcofi-files-public/netcdf/cce-lter_euphausiids/v2026.09.04/cce-lter_euphausiids.nc
ERDDAP (erddap.calcofi.io)
One ERDDAP dataset per grain, each with its own data formats and its own pages. Subset in the browser or query it from a script.
- observations
- one row per measurement, joined to the event it was taken on
- sampling events
- one row per cast, tow or transect — when, where and how it was sampled
Legacy ids, still answering until 2026-12-04: calcofi_euphausiids (replaced by cce-lter_euphausiids)
Metadata records
Records about the data, in the standards each portal harvests.
https://erddap.calcofi.io/erddap/metadata/iso19115/xml/cce-lter_euphausiids_iso19115.xml
https://erddap.calcofi.io/erddap/metadata/fgdc/xml/cce-lter_euphausiids_fgdc.xml
https://calcofi.io/datasets/cce-lter_euphausiids.jsonld
https://calcofi.io/datasets/cce-lter_euphausiids.json
https://calcofi.io/data.json
https://calcofi.io/stac/#/collections/cce-lter_euphausiids/collection.json
Archives & portals
Where this dataset is registered outside calcofi.io, by the identifier each portal knows it as.
https://erddap.calcofi.io/erddap/info/cce-lter_euphausiids/index.html
https://doi.org/10.5281/zenodo.22281994
https://portal.edirepository.org/nis/mapbrowse?scope=knb-lter-cce&identifier=313
Everything here is open — nothing on calcofi.io asks you to register first. If this dataset ends up in something you build or publish, register your use so it can be credited and linked back; to hear when a release changes it, stay informed. Questions: data@calcofi.io.
Cite
Ohman, M.D. 2022. California Current Ecosystem Euphausiid data, Brinton and Townsend Euphausiid Database (BTEDB) ver 1. Environmental Data Initiative. https://doi.org/10.6073/pasta/4a92a0044bcd1523a4f994ece874a57d
License: custom (https://portal.edirepository.org/nis/metadataviewer?packageid=knb-lter-cce.313.1)
DOI: https://doi.org/10.6073/pasta/4a92a0044bcd1523a4f994ece874a57d
Acknowledgement: Data originate from the Brinton and Townsend Euphausiid Database of the Pelagic Invertebrate Collection, Scripps Institution of Oceanography. Supported in recent years by NSF grants to M.D. Ohman and the CCE-LTER site.BibTeX
@misc{cce-lter_euphausiids,
title = {CCE-LTER Euphausiid Abundance},
howpublished = {Ohman, M.D. 2022. California Current Ecosystem Euphausiid data, Brinton and Townsend Euphausiid Database (BTEDB) ver 1. Environmental Data Initiative. https://doi.org/10.6073/pasta/4a92a0044bcd1523a4f994ece874a57d},
year = {2022},
doi = {10.6073/pasta/4a92a0044bcd1523a4f994ece874a57d},
url = {https://doi.org/10.6073/pasta/4a92a0044bcd1523a4f994ece874a57d},
note = {License: custom (https://portal.edirepository.org/nis/metadataviewer?packageid=knb-lter-cce.313.1); Acknowledgement: Data originate from the Brinton and Townsend Euphausiid Database of the Pelagic Invertebrate Collection, Scripps Institution of Oceanography. Supported in recent years by NSF grants to M.D. Ohman and the CCE-LTER site.}
}Acknowledgement. Data originate from the Brinton and Townsend Euphausiid Database of the Pelagic Invertebrate Collection, Scripps Institution of Oceanography. Supported in recent years by NSF grants to M.D. Ohman and the CCE-LTER site.
…and the release it came from
CalCOFI (2026). CalCOFI Integrated Database, release v2026.09.05 [Data set]. Scripps Institution of Oceanography, NOAA Fisheries, and California Department of Fish and Wildlife. https://calcofi.io/db-schema/?v=v2026.09.05BibTeX
@misc{calcofi_release_v2026_09_05,
title = {CalCOFI Integrated Database, release v2026.09.05},
author = {CalCOFI},
year = {2026},
publisher = {Scripps Institution of Oceanography, NOAA Fisheries, and California Department of Fish and Wildlife},
url = {https://calcofi.io/db-schema/?v=v2026.09.05}
}