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One row per (sample, taxon, measurementtype); unpooled tows are station-resolved, pooled samples are per-cruise regional composites. Raw (uncorrected) abundance per 1000 m3 and per m2, plus biomass mg C/m2.", "keyword": [ "EARTH SCIENCE > BIOSPHERE > ECOSYSTEMS > AQUATIC ECOSYSTEMS > PLANKTON > ZOOPLANKTON", "EARTH SCIENCE > BIOLOGICAL CLASSIFICATION > ANIMALS/INVERTEBRATES > ARTHROPODS > CRUSTACEANS", "EARTH SCIENCE > BIOLOGICAL CLASSIFICATION > ANIMALS/INVERTEBRATES > ARTHROPODS > CRUSTACEANS > COPEPODS", "Zooplankton" ], "modified": "2026-09-05", "publisher": { "@type": "org:Organization", "name": "California Current Ecosystem Long Term Ecological Research" }, "contactPoint": { "@type": "vcard:Contact", "fn": "CalCOFI data team", "hasEmail": "mailto:data@calcofi.io" }, "accessLevel": "public", "landingPage": "https://calcofi.io/datasets/cce-lter_zoodb/", "theme": [ "Zooplankton" ], "distribution": [ { "@type": "dcat:Distribution", "title": "obs (this dataset's rows)", "downloadURL": "https://storage.googleapis.com/calcofi-db/ducklake-staging/tables/obs/dataset_key=cce-lter_zoodb/eea6422d45a7ccd2ebbe37a6/data_0.parquet", "mediaType": "application/vnd.apache.parquet", "format": "Parquet" }, { "@type": "dcat:Distribution", "title": "CF netCDF", "downloadURL": "https://storage.calcofi.io/calcofi-files-public/netcdf/cce-lter_zoodb/v2026.09.04/cce-lter_zoodb.nc", "mediaType": "application/x-netcdf", "format": "netCDF" }, { "@type": "dcat:Distribution", "title": "ZooDB Holoplankton Community — observations (CSV)", "downloadURL": "https://erddap.calcofi.io/erddap/tabledap/cce-lter_zoodb.csv", "mediaType": "text/csv", "format": "CSV" }, { "@type": "dcat:Distribution", "title": "ZooDB Holoplankton Community — observations", "accessURL": "https://erddap.calcofi.io/erddap/tabledap/cce-lter_zoodb.html", "mediaType": "text/html", "format": "ERDDAP" }, { "@type": "dcat:Distribution", "title": "ZooDB Holoplankton Community — sampling events (CSV)", "downloadURL": "https://erddap.calcofi.io/erddap/tabledap/cce-lter_zoodb_sample.csv", "mediaType": "text/csv", "format": "CSV" }, { "@type": "dcat:Distribution", "title": "ZooDB Holoplankton Community — sampling events", "accessURL": "https://erddap.calcofi.io/erddap/tabledap/cce-lter_zoodb_sample.html", "mediaType": "text/html", "format": "ERDDAP" }, { "@type": "dcat:Distribution", "title": "ISO 19115-3 metadata (ERDDAP)", "accessURL": "https://erddap.calcofi.io/erddap/metadata/iso19115/xml/cce-lter_zoodb_iso19115.xml", "mediaType": "application/xml", "format": "ISO-19115" }, { "@type": "dcat:Distribution", "title": "calcofi.org data page", "accessURL": "https://calcofi.org/data/marine-ecosystem-data/zooplankton/", "mediaType": "text/html" }, { "@type": "dcat:Distribution", "title": "source", "accessURL": "https://oceaninformatics.ucsd.edu/zoodb/", "mediaType": "text/html" } ], "license": "https://oceaninformatics.ucsd.edu/zoodb/", "describedBy": "https://erddap.calcofi.io/erddap/metadata/iso19115/xml/cce-lter_zoodb_iso19115.xml", "spatial": "-125.7800,30.7500,-117.3000,37.6200", "temporal": "1951-01-01T00:00:00Z/2015-12-31T23:59:59Z" }, { "@type": "dcat:Dataset", "identifier": "https://calcofi.io/datasets/cce-lter_zooscan/", "title": "ZooScan PRPOOS Zooplankton", "description": "Zooplankton abundance, carbon biomass, and size (Feret diameter, individual carbon content) from ZooScan optical imaging of CalCOFI / CCE-LTER PRPOOS net tows on lines 80, 87 and 90, 2005-present, machine-classified into 23 bioclasses (copepod groups, euphausiids, chaetognaths, appendicularians, salps, doliolids, pteropods, rhizaria and more). One row per (sample, taxon, measurementtype); per-station tows. Source: SIO Ocean Informatics ZooScan portal (Ohman Lab; interface by Marina Frants).", "keyword": [ "EARTH SCIENCE > BIOSPHERE > ECOSYSTEMS > AQUATIC ECOSYSTEMS > PLANKTON > ZOOPLANKTON", "EARTH SCIENCE > BIOLOGICAL CLASSIFICATION > ANIMALS/INVERTEBRATES > ARTHROPODS > CRUSTACEANS", "Zooplankton" ], "modified": "2026-09-05", "publisher": { "@type": "org:Organization", "name": "California Current Ecosystem Long Term Ecological Research" }, "contactPoint": { "@type": "vcard:Contact", "fn": "CalCOFI data team", "hasEmail": "mailto:data@calcofi.io" }, "accessLevel": "public", "landingPage": "https://calcofi.io/datasets/cce-lter_zooscan/", "theme": [ "Zooplankton" ], "distribution": [ { "@type": "dcat:Distribution", "title": "obs (this dataset's rows)", "downloadURL": "https://storage.googleapis.com/calcofi-db/ducklake-staging/tables/obs/dataset_key=cce-lter_zooscan/8767afb6413867e98cfceee3/data_0.parquet", "mediaType": "application/vnd.apache.parquet", "format": "Parquet" }, { "@type": "dcat:Distribution", "title": "CF netCDF", "downloadURL": "https://storage.calcofi.io/calcofi-files-public/netcdf/cce-lter_zooscan/v2026.09.04/cce-lter_zooscan.nc", "mediaType": "application/x-netcdf", "format": "netCDF" }, { "@type": "dcat:Distribution", "title": "ZooScan PRPOOS Zooplankton — observations (CSV)", "downloadURL": "https://erddap.calcofi.io/erddap/tabledap/cce-lter_zooscan.csv", "mediaType": "text/csv", "format": "CSV" }, { "@type": "dcat:Distribution", "title": "ZooScan PRPOOS Zooplankton — observations", "accessURL": "https://erddap.calcofi.io/erddap/tabledap/cce-lter_zooscan.html", "mediaType": "text/html", "format": "ERDDAP" }, { "@type": "dcat:Distribution", "title": "ZooScan PRPOOS Zooplankton — sampling events (CSV)", "downloadURL": "https://erddap.calcofi.io/erddap/tabledap/cce-lter_zooscan_sample.csv", "mediaType": "text/csv", "format": "CSV" }, { "@type": "dcat:Distribution", "title": "ZooScan PRPOOS Zooplankton — sampling events", "accessURL": "https://erddap.calcofi.io/erddap/tabledap/cce-lter_zooscan_sample.html", "mediaType": "text/html", "format": "ERDDAP" }, { "@type": "dcat:Distribution", "title": "ISO 19115-3 metadata (ERDDAP)", "accessURL": "https://erddap.calcofi.io/erddap/metadata/iso19115/xml/cce-lter_zooscan_iso19115.xml", "mediaType": "application/xml", "format": "ISO-19115" }, { "@type": "dcat:Distribution", "title": "calcofi.org data page", "accessURL": "https://calcofi.org/data/marine-ecosystem-data/zooplankton/", "mediaType": "text/html" }, { "@type": "dcat:Distribution", "title": "source", "accessURL": "https://oceaninformatics.ucsd.edu/zooscandb/", "mediaType": "text/html" } ], "license": "https://oceaninformatics.ucsd.edu/zooscandb/", "describedBy": "https://erddap.calcofi.io/erddap/metadata/iso19115/xml/cce-lter_zooscan_iso19115.xml", "spatial": "-124.0000,30.4200,-117.7700,34.4500", "temporal": "2005-01-01T00:00:00Z/2026-12-31T23:59:59Z" }, { "@type": "dcat:Dataset", "identifier": "https://calcofi.io/datasets/cdfw_dungeness-crab/", "title": "CDFW Dungeness Crab Megalopae", "description": "Dungeness crab (Metacarcinus magister) megalopae and larval decapods picked from archived CalCOFI oblique-tow plankton samples, examined for the California Department of Fish and Wildlife. 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Position, time, depth, and gear metadata per tow. Includes the historical grid (1950s-80s inshore, Gulf of California and Baja lines), not just the modern pattern. 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"text/csv", "format": "CSV" }, { "@type": "dcat:Distribution", "title": "SWFSC Ichthyoplankton — sampling events", "accessURL": "https://erddap.calcofi.io/erddap/tabledap/swfsc_ichthyo_sample.html", "mediaType": "text/html", "format": "ERDDAP" }, { "@type": "dcat:Distribution", "title": "ISO 19115-3 metadata (ERDDAP)", "accessURL": "https://erddap.calcofi.io/erddap/metadata/iso19115/xml/swfsc_ichthyo_iso19115.xml", "mediaType": "application/xml", "format": "ISO-19115" }, { "@type": "dcat:Distribution", "title": "calcofi.org data page", "accessURL": "https://calcofi.org/data/marine-ecosystem-data/fish-eggs-larvae/", "mediaType": "text/html" }, { "@type": "dcat:Distribution", "title": "CalCOFI Fish Larvae & Egg Tows", "accessURL": "https://obis.org/dataset/0e223f55-c826-4513-ae9a-b04cbf2e189c", "mediaType": "text/html" }, { "@type": "dcat:Distribution", "title": "CalCOFI Fish Larvae & Egg Tows (OBIS-USA IPT resource)", "accessURL": "https://ipt-obis.gbif.us/resource?r=calcofi_ichthyo", "mediaType": "text/html" }, { "@type": "dcat:Distribution", "title": "CalCOFI NOAA Fish Larvae Counts", "accessURL": "https://coastwatch.pfeg.noaa.gov/erddap/tabledap/erdCalCOFIlrvcnt.html", "mediaType": "text/html" }, { "@type": "dcat:Distribution", "title": "CalCOFI NOAA Fish Larvae Sizes", "accessURL": "https://coastwatch.pfeg.noaa.gov/erddap/tabledap/erdCalCOFIlrvsiz.html", "mediaType": "text/html" }, { "@type": "dcat:Distribution", "title": "CalCOFI NOAA Fish Larvae Stages", "accessURL": "https://coastwatch.pfeg.noaa.gov/erddap/tabledap/erdCalCOFIlrvstg.html", "mediaType": "text/html" }, { "@type": "dcat:Distribution", "title": "CalCOFI NOAA Fish Egg Counts", "accessURL": "https://coastwatch.pfeg.noaa.gov/erddap/tabledap/erdCalCOFIeggcnt.html", "mediaType": "text/html" }, { "@type": "dcat:Distribution", "title": "CalCOFI NOAA Fish Egg Stages", "accessURL": "https://coastwatch.pfeg.noaa.gov/erddap/tabledap/erdCalCOFIeggstg.html", "mediaType": "text/html" }, { "@type": "dcat:Distribution", "title": "CalCOFI NOAA Invertebrate Counts (cephalopods)", "accessURL": "https://coastwatch.pfeg.noaa.gov/erddap/tabledap/erdCalCOFIinvcnt.html", "mediaType": "text/html" }, { "@type": "dcat:Distribution", "title": "CalCOFI NOAA Invertebrate Sizes (cephalopods)", "accessURL": "https://coastwatch.pfeg.noaa.gov/erddap/tabledap/erdCalCOFIinvsiz.html", "mediaType": "text/html" }, { "@type": "dcat:Distribution", "title": "CalCOFI NOAA Ichthyoplankton Tows", "accessURL": "https://coastwatch.pfeg.noaa.gov/erddap/tabledap/erdCalCOFItows.html", "mediaType": "text/html" }, { "@type": "dcat:Distribution", "title": "CALCOFI fish larvae at 66 standard stations, 1966 - ongoing", "accessURL": "https://portal.edirepository.org/nis/mapbrowse?packageid=edi.109.4", "mediaType": "text/html" } ], "describedBy": "https://erddap.calcofi.io/erddap/metadata/iso19115/xml/swfsc_ichthyo_iso19115.xml", "spatial": "-179.8217,0.0017,-77.2283,54.3850", "temporal": "1951-01-01T00:00:00Z/2023-12-31T23:59:59Z" }, { "@type": "dcat:Dataset", "identifier": "https://calcofi.io/datasets/calcofi_prodo/", "title": "Measurements from CalCOFI cruises in the California Current System, including log of station information, weather, sea conditions as well as physical, chemical and biological measurements including temperature, salinity, oxygen, density, sigma theta, phosphate, silicate, nitrite, nitrate, ammonia, chlorophyll a, integrated chlorophyll a, primary productivity, and integrated primary production. 1949 - January 2020", "description": "CalCOFI PRODO Chlorophyll and Primary Productivity contains chlorophyll a, integrated chlorophyll a, primary productivity, and integrated primary production values drawn from the California Cooperative Oceanic Fisheries Investigations (CalCOFI) hydrographic bottle database, collected during quarterly CalCOFI cruises run by the Scripps Institution of Oceanography (SIO). CalCOFI's hydrographic time series began in 1949 with weather, temperature, salinity, oxygen, and phosphate measurements; nutrient analysis expanded to include silicate, nitrate, and nitrite in 1961, chlorophyll was added in 1973, and carbon-14 primary productivity incubations were added in 1984. The dataset covers primarily the CalCOFI station grid off Southern and Central California, with broader coverage extending farther north, south, and offshore during early cruises, and spans 1949 to 2020. This dataset supports long-term study of phytoplankton biomass and productivity trends in the California Current, for researchers studying multi-decade changes in primary production", "keyword": [ "Temperature", "Salinity", "Dissolved Nutrients", "Phytoplankton Biomass and Diversity", "Productivity & Pigments" ], "modified": "2026-09-05", "publisher": { "@type": "org:Organization", "name": "California Cooperative Oceanic Fisheries Investigations" }, "contactPoint": { "@type": "vcard:Contact", "fn": "CalCOFI data team", "hasEmail": "mailto:data@calcofi.io" }, "accessLevel": "public", "landingPage": "https://calcofi.io/datasets/calcofi_prodo/", "theme": [ "Productivity & Pigments" ], "distribution": [ { "@type": "dcat:Distribution", "title": "source", "accessURL": "https://portal.edirepository.org/nis/mapbrowse?scope=knb-lter-cce&identifier=78&revision=3", "mediaType": "text/html" } ] }, { "@type": "dcat:Dataset", "identifier": "https://calcofi.io/datasets/calpoly_whale-edna/", "title": "Baleen Whale Density Prediction from Environmental DNA (eDNA)", "description": "Baleen Whale Density Prediction from Environmental DNA (eDNA) contains processed amplicon sequence variant (ASV) abundance tables for three eDNA markers, 16S rRNA, 18S rRNA V4, and 18S rRNA V9, developed by Erin Satterthwaite, Trevor Ruiz, Nastassia Patin, and colleagues to test whether microbial and small zooplankton communities can predict the density of baleen whales in the southern California Current Ecosystem. The dataset covers CalCOFI cruises in the southern California Current Ecosystem and spans 2014 to 2020, combining eDNA data from the NOAA CalCOFI Genomics Program (NCOG) with line-transect distance-sampling density estimates for blue, fin, and humpback whales derived from CalCOFI whale sighting surveys. The data are analyzed using stability selection adapted to sparse partial least squares (sPLS) regression, a statistical method for identifying reliable microbial and zooplankton predictors of whale density within large sequencing datasets. Processed data includes ASV tables with taxonomic annotations, sample metadata, density estimates, and cross-validation partitions. This dataset supports research on eDNA-based indicators of marine mammal distribution and is intended for researchers studying whale ecology and biomonitoring methods in the California Current.", "keyword": [ "Zooplankton Biomass and Diversity", "Phytoplankton Biomass and Diversity", "Genomics & eDNA" ], "modified": "2026-09-05", "publisher": { "@type": "org:Organization", "name": "California Polytechnic State University" }, "contactPoint": { "@type": "vcard:Contact", "fn": "CalCOFI data team", "hasEmail": "mailto:data@calcofi.io" }, "accessLevel": "public", "landingPage": "https://calcofi.io/datasets/calpoly_whale-edna/", "theme": [ "Genomics & eDNA" ], "distribution": [ { "@type": "dcat:Distribution", "title": "source", "accessURL": "https://doi.org/10.5281/zenodo.19139338", "mediaType": "text/html" } ] }, { "@type": "dcat:Dataset", "identifier": "https://calcofi.io/datasets/cce-lter_chl-size-fractionated/", "title": "Size fractionation of total Chl a larger and smaller than 8 μm data generated by Mike Mullin of the Marine Life Research Group, aboard CalCOFI (California Cooperative Oceanic Fisheries Investigations) cruises of the coast of California, January 1994 - October 1996", "description": "CalCOFI Size-Fractionated Chlorophyll a (8µm / <8µm) contains depth-integrated chlorophyll a biomass split by cell size (larger and smaller than 8 μm), along with zooplankton displacement volume and nitracline depth, generated by Michael Mullin, Director of the Marine Life Research Group (UC San Diego), from samples collected aboard California Cooperative Oceanic Fisheries Investigations (CalCOFI) cruises off the coast of California. The dataset covers twelve quarterly CalCOFI cruises and spans January 1994 to October 1996. At roughly half the stations sampled on each cruise, water was collected at multiple depths using closing bottles on a CTD rosette; chlorophyll from each bottle was retained on a GF/F glass-fiber filter and measured fluorometrically, while an additional combined sample from the shallowest ten bottles (surface to about 100 m) was filtered through an 8 μm membrane filter to isolate the larger size fraction. Total and ≥8 μm chlorophyll were each integrated to 100 m depth, and chlorophyll <8 μm was calculated as the difference between the two. This dataset supports research relating phytoplankton size structure to nitracline depth and zooplankton grazing pressure, for researchers studying controls on phytoplankton community size composition in the California Current.", "keyword": [ "Phytoplankton Biomass and Diversity", "CalCOFI Network", "Zooplankton Biomass and Diversity", "Productivity & Pigments" ], "modified": "2026-09-05", "publisher": { "@type": "org:Organization", "name": "California Current Ecosystem Long Term Ecological Research" }, "contactPoint": { "@type": "vcard:Contact", "fn": "CalCOFI data team", "hasEmail": "mailto:data@calcofi.io" }, "accessLevel": "public", "landingPage": "https://calcofi.io/datasets/cce-lter_chl-size-fractionated/", "theme": [ "Productivity & Pigments" ], "distribution": [ { "@type": "dcat:Distribution", "title": "source", "accessURL": "https://portal.edirepository.org/nis/mapbrowse?packageid=knb-lter-cce.249.3", "mediaType": "text/html" } ] }, { "@type": "dcat:Dataset", "identifier": "https://calcofi.io/datasets/cce-lter_hplc-pigments/", "title": "High Performance Liquid Chromatography (HPLC) pigment analysis from rosette bottle samples at various depths from CCE LTER process cruises in the California Current System, 2006 to 2017", "description": "CalCOFI Phytoplankton Community Taxon-Specific Pigments contains concentrations of chlorophyll and other pigments used to estimate phytoplankton biomass and taxonomic composition, collected during California Current Ecosystem Long-Term Ecological Research (CCE-LTER) Process cruises, periodic research cruises distinct from the routine quarterly California Cooperative Oceanic Fisheries Investigations (CalCOFI) survey. Samples are collected from rosette bottles at three to eight depths in the photic zone at stations within the California Current Ecosystem region, spanning 2006 to 2017. Particulate matter is filtered and frozen at sea, then extracted onshore for High Performance Liquid Chromatography (HPLC) analysis, which measures chlorophyll and carotenoid pigment concentrations. Chlorophyll a concentration serves as a proxy for total phytoplankton biomass, while other taxon-specific pigments are used to determine the contribution of different phytoplankton taxa to that biomass. This dataset supports characterization of phytoplankton community composition and biomass in the California Current, for researchers studying primary producer community structure.", "keyword": [ "Phytoplankton Biomass and Diversity", "Productivity & Pigments" ], "modified": "2026-09-05", "publisher": { "@type": "org:Organization", "name": "California Current Ecosystem Long Term Ecological Research" }, "contactPoint": { "@type": "vcard:Contact", "fn": "CalCOFI data team", "hasEmail": "mailto:data@calcofi.io" }, "accessLevel": "public", "landingPage": "https://calcofi.io/datasets/cce-lter_hplc-pigments/", "theme": [ "Productivity & Pigments" ], "distribution": [ { "@type": "dcat:Distribution", "title": "source", "accessURL": "https://portal.edirepository.org/nis/mapbrowse?packageid=knb-lter-cce.72.4", "mediaType": "text/html" } ] }, { "@type": "dcat:Dataset", "identifier": "https://calcofi.io/datasets/cce-lter_iron/", "title": "Measurements of dissolved inorganic concentrations of nutrient iron and of iron limitation at selected stations and depths from CalCOFI cruises in the California Current System, Nov. 2002 - July 2004 (completed)", "description": "CalCOFI Dissolved and Total Iron (Fe) Concentrations contains measurements of dissolved and total iron and results of shipboard iron-addition bioassays, collected during California Cooperative Oceanic Fisheries Investigations (CalCOFI) cruises as part of the California Current Ecosystem Long-Term Ecological Research (CCE-LTER) program, with Katherine Barbeau (Scripps Institution of Oceanography (SIO)) as lead contributor, to investigate the potential for phytoplankton iron limitation in the California Current System. The dataset covers coastal transition zone stations of the southern California Current System, a weak-upwelling regime relatively low in nutrients and chlorophyll, and spans November 2002 to July 2004 (completed). Surface (0 m) seawater samples were collected using a pole sampler and analyzed for dissolved iron using an FeLume flow-injection analysis system; a subset of samples also include results from shipboard iron-addition bioassays tracking the chlorophyll a response to added iron (Chla response to Fe+). This dataset supports research on iron limitation and its effects on phytoplankton growth in the California Current, for researchers studying nutrient controls on primary productivity in low-nutrient, low-chlorophyll coastal waters.", "keyword": [ "Dissolved Nutrients", "Phytoplankton Biomass and Diversity", "CalCOFI Network", "Nutrients & Chemistry" ], "modified": "2026-09-05", "publisher": { "@type": "org:Organization", "name": "California Current Ecosystem Long Term Ecological Research" }, "contactPoint": { "@type": "vcard:Contact", "fn": "CalCOFI data team", "hasEmail": "mailto:data@calcofi.io" }, "accessLevel": "public", "landingPage": "https://calcofi.io/datasets/cce-lter_iron/", "theme": [ "Nutrients & Chemistry" ], "distribution": [ { "@type": "dcat:Distribution", "title": "source", "accessURL": "https://portal.edirepository.org/nis/mapbrowse?packageid=knb-lter-cce.21.3", "mediaType": "text/html" } ] }, { "@type": "dcat:Dataset", "identifier": "https://calcofi.io/datasets/cce-lter_poc-pon/", "title": "Particulate organic carbon and nitrogen measurements at selected depths in the water column from CalCOFI-CCE Augmented cruises in the California Current System, 2004 - November 2022", "description": "CalCOFI Particulate Organic Carbon and Nitrogen (POC/PON) contains concentrations of particulate organic carbon and nitrogen from water column bottle samples collected at multiple depths during California Cooperative Oceanic Fisheries Investigations (CalCOFI) cruises since 2004, run by the Scripps Institution of Oceanography (SIO) as part of the California Current Ecosystem Long-Term Ecological Research (CCE-LTER) program. The dataset covers the CalCOFI station grid off Southern and Central California and spans 2004 to ongoing. Samples are filtered at CTD stations, frozen at negative 20 degrees Celsius, then acidified, dried, and analyzed onshore by high-temperature combustion at 1,000 degrees Celsius, which converts organic carbon to carbon dioxide and reduces nitrogen oxides to nitrogen gas, both measured by thermal conductivity. These measurements constrain the mean carbon-to-nitrogen ratio of small particulates and, compared against measured living biomass, estimate the biomass of suspended non-living detritus. This dataset supports study of organic carbon cycling and detrital biomass in the California Current, for researchers studying particulate organic matter dynamics. Its particulate organic carbon values are also used together with CalCOFI's Total Organic Carbon dataset to estimate dissolved organic carbon in open-ocean samples.", "keyword": [ "Dissolved Nutrients", "Nutrients & Chemistry" ], "modified": "2026-09-05", "publisher": { "@type": "org:Organization", "name": "California Current Ecosystem Long Term Ecological Research" }, "contactPoint": { "@type": "vcard:Contact", "fn": "CalCOFI data team", "hasEmail": "mailto:data@calcofi.io" }, "accessLevel": "public", "landingPage": "https://calcofi.io/datasets/cce-lter_poc-pon/", "theme": [ "Nutrients & Chemistry" ], "distribution": [ { "@type": "dcat:Distribution", "title": "source", "accessURL": "https://portal.edirepository.org/nis/mapbrowse?packageid=knb-lter-cce.54.7", "mediaType": "text/html" } ] }, { "@type": "dcat:Dataset", "identifier": "https://calcofi.io/datasets/cce-lter_poc-pon-cce-region/", "title": "Particulate organic carbon and nitrogen measurements at selected depths in the water column in the CCE region since 2006 - 2024 (ongoing)", "description": "CalCOFI Nitrate Stable Isotope of Nitrogen and Oxygen contains nitrogen and oxygen stable isotope ratios of nitrate, collected from water column bottle samples at multiple depths at CTD stations within the California Current Ecosystem region, during California Current Ecosystem Long-Term Ecological Research (CCE-LTER) Process cruises, periodic research cruises distinct from the routine quarterly California Cooperative Oceanic Fisheries Investigations (CalCOFI) survey. The dataset spans 2006 to ongoing. These isotope ratios, nitrogen-15 and oxygen-18 relative to standard references, are used to trace the origin and cycling of nitrate in seawater. This dataset supports study of nitrogen cycling and nutrient sources in the California Current, for researchers studying ocean biogeochemistry.", "keyword": [ "Dissolved Nutrients", "Nutrients & Chemistry" ], "modified": "2026-09-05", "publisher": { "@type": "org:Organization", "name": "California Current Ecosystem Long Term Ecological Research" }, "contactPoint": { "@type": "vcard:Contact", "fn": "CalCOFI data team", "hasEmail": "mailto:data@calcofi.io" }, "accessLevel": "public", "landingPage": "https://calcofi.io/datasets/cce-lter_poc-pon-cce-region/", "theme": [ "Nutrients & Chemistry" ], "distribution": [ { "@type": "dcat:Distribution", "title": "source", "accessURL": "https://portal.edirepository.org/nis/mapbrowse?scope=knb-lter-cce&identifier=104&revision=12", "mediaType": "text/html" } ] }, { "@type": "dcat:Dataset", "identifier": "https://calcofi.io/datasets/cce-lter_primary-production-c14/", "title": "Primary production estimates from 14C uptake (in situ), determined by the incorporation of inorganic carbon into particulate organic carbon (POC) due to photosynthesis at selected light levels from CCE LTER process cruises in the California Current System, 2006 - 2021 (ongoing)", "description": "CalCOFI Primary Production from 14C Uptake (in Situ) contains measurements of phytoplankton photosynthetic production rates from seawater samples collected each day near midday during California Current Ecosystem Long-Term Ecological Research (CCE-LTER) Process cruises, within the California Current Ecosystem region. The dataset spans 2006 to 2021. Water is collected via Niskin bottles from the CTD rosette at depths matching specific light levels, determined from Secchi disk measurements of light penetration, then incubated on deck under matching simulated light and dosed with radioactive carbon-14. The amount of carbon-14 taken up by phytoplankton during photosynthesis, after filtering, estimates the rate of primary production, reported in micrograms of carbon per liter per day, at each light level sampled within the euphotic zone. This dataset supports study of phytoplankton productivity and carbon fixation rates in the California Current, for researchers studying primary production and ecosystem energy flow.", "keyword": [ "Phytoplankton Biomass and Diversity", "Productivity & Pigments" ], "modified": "2026-09-05", "publisher": { "@type": "org:Organization", "name": "California Current Ecosystem Long Term Ecological Research" }, "contactPoint": { "@type": "vcard:Contact", "fn": "CalCOFI data team", "hasEmail": "mailto:data@calcofi.io" }, "accessLevel": "public", "landingPage": "https://calcofi.io/datasets/cce-lter_primary-production-c14/", "theme": [ "Productivity & Pigments" ], "distribution": [ { "@type": "dcat:Distribution", "title": "source", "accessURL": "https://portal.edirepository.org/nis/mapbrowse?packageid=knb-lter-cce.71.4", "mediaType": "text/html" } ] }, { "@type": "dcat:Dataset", "identifier": "https://calcofi.io/datasets/cce-lter_toc/", "title": "Total dissolved organic carbon measurements at standard depths in the water column from nine CalCOFI cruises, 2008-2017", "description": "CalCOFI Total Organic Carbon (TOC) contains total organic carbon concentrations, combining both dissolved and particulate organic carbon, from water column bottle samples collected at multiple depths during California Cooperative Oceanic Fisheries Investigations (CalCOFI) cruises at CTD stations, run by the Scripps Institution of Oceanography (SIO) as part of the California Current Ecosystem Long-Term Ecological Research (CCE-LTER) program. The dataset covers the CalCOFI station grid off Southern and Central California and spans 2008 to 2017. TOC is measured onshore in the lab and reported as micromoles of carbon per liter of seawater. In open ocean waters, particulate organic carbon can be subtracted from TOC to estimate dissolved organic carbon, since particles there are typically small and evenly distributed. In coastal waters and at stations with high chlorophyll, particles are larger and unevenly distributed, so this subtraction does not reliably estimate dissolved organic carbon, and samples from the California Current Ecosystem are reported as TOC rather than converted. This dataset supports study of organic carbon cycling in coastal and open ocean waters of the California Current, for researchers studying carbon dynamics in the California Current ecosystem. It complements CalCOFI's Particulate Organic Carbon and Nitrogen (POC/PON) dataset, whose values are used together with TOC to estimate dissolved organic carbon in open-ocean samples.", "keyword": [ "Dissolved Nutrients", "Nutrients & Chemistry" ], "modified": "2026-09-05", "publisher": { "@type": "org:Organization", "name": "California Current Ecosystem Long Term Ecological Research" }, "contactPoint": { "@type": "vcard:Contact", "fn": "CalCOFI data team", "hasEmail": "mailto:data@calcofi.io" }, "accessLevel": "public", "landingPage": "https://calcofi.io/datasets/cce-lter_toc/", "theme": [ "Nutrients & Chemistry" ], "distribution": [ { "@type": "dcat:Distribution", "title": "source", "accessURL": "https://portal.edirepository.org/nis/mapbrowse?scope=knb-lter-cce&identifier=253&revision=3", "mediaType": "text/html" } ] }, { "@type": "dcat:Dataset", "identifier": "https://calcofi.io/datasets/jcvi_ncog-metabarcoding/", "title": "CalCOFI Microbial/Plankton Community Genomics (16S and 18S rDNA) NCOG- JCVI & SIO, UCSD", "description": "CalCOFI Microbial/Plankton Community Genomics (16S and 18S rDNA) contains ribosomal RNA (rRNA) gene metabarcoding sequence data, collected as part of the NOAA CalCOFI Genomics Program (NCOG) to characterize microbial and plankton community composition in the California Current. The dataset covers CalCOFI and California Current Ecosystem Long-Term Ecological Research (CCE-LTER) stations off Southern and Central California and spans 2014 to 2019, archived across two NCBI BioProject deposits (PRJNA555783 for 2014-2016 and PRJNA665326 for 2017-2019, which also includes some 2014-2016 samples and extends metatranscriptomics data through 2020). Whole water samples were filtered onto 0.2 micrometer filters to capture DNA and RNA at four depths, 10 meters, the subsurface chlorophyll maximum layer, 170 meters, and 515 meters, then sequenced using 16S V4 metabarcoding to identify bacteria and archaea, and 18S V4 and V9 metabarcoding to identify eukaryotic plankton such as protists and small zooplankton. The same archived deposits also include total mRNA sequencing (metatranscriptomics) data from these samples. This dataset supports research identifying amplicon sequence variants (ASVs), a method for distinguishing microbial and plankton taxa at high resolution, and characterizing community structure and diversity, and is intended for researchers studying plankton and microbial ecology in the California Current.", "keyword": [ "Phytoplankton Biomass and Diversity", "Genomics & eDNA" ], "modified": "2026-09-05", "publisher": { "@type": "org:Organization", "name": "J. Craig Venter Institute" }, "contactPoint": { "@type": "vcard:Contact", "fn": "CalCOFI data team", "hasEmail": "mailto:data@calcofi.io" }, "accessLevel": "public", "landingPage": "https://calcofi.io/datasets/jcvi_ncog-metabarcoding/", "theme": [ "Genomics & eDNA" ], "distribution": [ { "@type": "dcat:Distribution", "title": "source", "accessURL": "https://www.ncbi.nlm.nih.gov/bioproject/555783", "mediaType": "text/html" } ] }, { "@type": "dcat:Dataset", "identifier": "https://calcofi.io/datasets/sccoos_ifcb-ctd/", "title": "CalCOFI Imaging FlowCytobot (IFCB) Images of Chloroplast-Containing Plankton from CTD - SIO, UCSD", "description": "CalCOFI Imaging FlowCytobot (IFCB) Images of Chloroplast-Containing Plankton from CTD contains high-resolution digital images of chloroplast-containing plankton and other suspended particles, collected during California Cooperative Oceanic Fisheries Investigations (CalCOFI) CTD casts to characterize fine-scale plankton community composition. The dataset covers the southern California Current and spans 2022 to ongoing, since the Imaging FlowCytobot (IFCB) was first deployed on CalCOFI cruises. Discrete water samples are collected from 10 meters and the chlorophyll maximum depth during CTD casts and imaged using the IFCB, an automated flow cytometer that combines flow cytometry and video technology to photograph individual suspended particles. Images are processed to estimate particle volume and identity, along with geolocation, sampling conditions, and instrument metadata, allowing estimates of plankton abundance, biovolume, and carbon content. This dataset supports research on fine-scale plankton community composition and spatial and temporal variability, and is intended for researchers studying phytoplankton ecology in the California Current.", "keyword": [ "Phytoplankton Biomass and Diversity", "CalCOFI Network", "Phytoplankton" ], "modified": "2026-09-05", "publisher": { "@type": "org:Organization", "name": "Southern California Coastal Ocean Observing System" }, "contactPoint": { "@type": "vcard:Contact", "fn": "CalCOFI data team", "hasEmail": "mailto:data@calcofi.io" }, "accessLevel": "public", "landingPage": "https://calcofi.io/datasets/sccoos_ifcb-ctd/", "theme": [ "Phytoplankton" ], "distribution": [ { "@type": "dcat:Distribution", "title": "source", "accessURL": "https://ifcb.caloos.org/timeline?dataset=calcofi-cruises-ctd", "mediaType": "text/html" } ] }, { "@type": "dcat:Dataset", "identifier": "https://calcofi.io/datasets/sccoos_ifcb-underway/", "title": "CalCOFI Imaging FlowCytobot (IFCB) Images of Chloroplast-Containing Plankton from Underway data - SIO, UCSD", "description": "CalCOFI Imaging FlowCytobot (IFCB) Images of Chloroplast-Containing Plankton from Underway data contains high-resolution digital images of chloroplast-containing plankton and other suspended particles, collected continuously during California Cooperative Oceanic Fisheries Investigations (CalCOFI) cruises to characterize fine-scale plankton community composition. The dataset covers the southern California Current and spans 2022 to ongoing, since the Imaging FlowCytobot (IFCB) was first deployed on CalCOFI cruises. Seawater is drawn continuously through the ship's underway system and imaged by the IFCB in small increments approximately every 20 to 25 minutes, using an automated flow cytometer that combines flow cytometry and video technology to photograph individual suspended particles. Images are processed to estimate particle volume and identity, along with geolocation, sampling conditions, and instrument metadata, allowing estimates of plankton abundance, biovolume, and carbon content. This dataset supports research on fine-scale plankton community composition and spatial and temporal variability, and is intended for researchers studying phytoplankton ecology in the California Current.", "keyword": [ "Phytoplankton" ], "modified": "2026-09-05", "publisher": { "@type": "org:Organization", "name": "Southern California Coastal Ocean Observing System" }, "contactPoint": { "@type": "vcard:Contact", "fn": "CalCOFI data team", "hasEmail": "mailto:data@calcofi.io" }, "accessLevel": "public", "landingPage": "https://calcofi.io/datasets/sccoos_ifcb-underway/", "theme": [ "Phytoplankton" ], "distribution": [ { "@type": "dcat:Distribution", "title": "source", "accessURL": "https://ifcb.caloos.org/timeline?dataset=calcofi-cruises-underway", "mediaType": "text/html" } ] }, { "@type": "dcat:Dataset", "identifier": "https://calcofi.io/datasets/sio_cetacean-sightings/", "title": "Index of visual monitoring, location, species behavior, and identification of cetaceans from CalCOFI cruises in the California Current System, 2005-2015 (ongoing)", "description": "CalCOFI Underway Marine Mammal Sighting Surveys contains visual sighting records of cetaceans (whales and dolphins) collected during California Cooperative Oceanic Fisheries Investigations (CalCOFI) cruises, run by the Scripps Institution of Oceanography (SIO), to understand cetacean ecology and habitat use. The dataset covers the CalCOFI station grid off Southern and Central California, recorded while the ship transits between stations, and spans 2004 to 2015, with cruises conducted quarterly. Trained observers watch for cetaceans during daylight hours using standard line-transect distance-sampling methods (Burnham et al. 1980; Buckland et al. 1993; Barlow 1995), recording each sighting's location and distance from the ship's track. Surveys are conducted during favorable weather, with calm seas (Beaufort state 5 or below) and visibility beyond 1 nautical mile. This dataset supports study of cetacean distribution and habitat use relative to oceanographic conditions, for researchers studying marine mammal ecology in the California Current.", "keyword": [ "\"Marine Turtles", "Birds", "and Mammals\"", "Seabirds & Marine Mammals" ], "modified": "2026-09-05", "publisher": { "@type": "org:Organization", "name": "Scripps Institution of Oceanography, UC San Diego" }, "contactPoint": { "@type": "vcard:Contact", "fn": "CalCOFI data team", "hasEmail": "mailto:data@calcofi.io" }, "accessLevel": "public", "landingPage": "https://calcofi.io/datasets/sio_cetacean-sightings/", "theme": [ "Seabirds & Marine Mammals" ], "distribution": [ { "@type": "dcat:Distribution", "title": "source", "accessURL": "https://oceaninformatics.ucsd.edu/datazoo/catalogs/ccelter/datasets/284", "mediaType": "text/html" } ] }, { "@type": "dcat:Dataset", "identifier": "https://calcofi.io/datasets/stanford_hopkins-phytoplankton/", "title": "Stanford Hopkins Marine Station CalCOFI Phytoplankton Data", "description": "Stanford Hopkins Marine Station CalCOFI Phytoplankton Data contains transcribed records of phytoplankton composition, collected by the Hopkins Marine Station of Stanford University as part of the California Cooperative Oceanic Fisheries Investigations (CalCOFI) program to help understand the environmental conditions surrounding the collapse of the California sardine fishery. The dataset covers Monterey Bay, California, and spans 1954 to 1968, a subset of Hopkins Marine Station's broader weekly CalCOFI sampling program that ran from March 1951 through June 1974. Data were collected through weekly field sampling and later transcribed from the original raw and aggregated records held at the Hopkins Marine Station library. This dataset supports historical research on phytoplankton community composition in Monterey Bay, extending oceanographic observations in the Northeast Pacific decades into the past, and is intended for researchers studying long-term or historical trends in phytoplankton populations and California Current oceanography. This dataset covers only a subset of the full 1951 to 1974 Hopkins Marine Station sampling period; Moss Landing Marine Laboratories took over the Monterey Bay sampling program in July 1974, continuing similar sampling until it appears to have ended in 1979.", "keyword": [ "Phytoplankton Biomass and Diversity", "CalCOFI Network", "Phytoplankton" ], "modified": "2026-09-05", "publisher": { "@type": "org:Organization", "name": "Hopkins Marine Station, Stanford University" }, "contactPoint": { "@type": "vcard:Contact", "fn": "CalCOFI data team", "hasEmail": "mailto:data@calcofi.io" }, "accessLevel": "public", "landingPage": "https://calcofi.io/datasets/stanford_hopkins-phytoplankton/", "theme": [ "Phytoplankton" ], "distribution": [ { "@type": "dcat:Distribution", "title": "source", "accessURL": "https://searchworks.stanford.edu/view/pz376rp0413", "mediaType": "text/html" } ] }, { "@type": "dcat:Dataset", "identifier": "https://calcofi.io/datasets/stanford_hopkins-supplemental/", "title": "CalCOFI Supplemental Data from Monterey Bay (1955-1963) - Stanford Hopkins Marine Station", "description": "CalCOFI Supplemental Data from Monterey Bay contains additional hydrographic, meteorological, and biological observations collected by the Hopkins Marine Station of Stanford University as part of the California Cooperative Oceanic Fisheries Investigations (CalCOFI) program, including temperature, salinity, dissolved oxygen, phosphate, silicate, meteorological conditions, and fish and marine mammal counts. The dataset covers Monterey Bay, California, as part of Hopkins Marine Station's weekly CalCOFI sampling program that ran from March 1951 through June 1974. The underlying records exist primarily as digitized images and PDF scans of the original field notebooks and reports, housed in the Stanford Digital Repository, with extraction into a structured, actionable dataset still in progress as of the most recent public update. This dataset supports historical research on oceanographic and ecological conditions in Monterey Bay and is intended for researchers studying long-term environmental change in the California Current.", "keyword": [ "Physical Oceanography" ], "modified": "2026-09-05", "publisher": { "@type": "org:Organization", "name": "Hopkins Marine Station, Stanford University" }, "contactPoint": { "@type": "vcard:Contact", "fn": "CalCOFI data team", "hasEmail": "mailto:data@calcofi.io" }, "accessLevel": "public", "landingPage": "https://calcofi.io/datasets/stanford_hopkins-supplemental/", "theme": [ "Physical Oceanography" ], "distribution": [ { "@type": "dcat:Distribution", "title": "source", "accessURL": "https://searchworks.stanford.edu/catalog?utf8=%E2%9C%93&search_field=search&q=calcofi", "mediaType": "text/html" } ] }, { "@type": "dcat:Dataset", "identifier": "https://calcofi.io/datasets/stanford_hopkins-zooplankton/", "title": "CalCOFI Zooplankton Data from Monterey Bay (1955-1963) - Stanford Hopkins Marine Station", "description": "CalCOFI Zooplankton Data from Monterey Bay (1955-1963) contains transcribed records of zooplankton composition and seasonal distribution, collected by the Hopkins Marine Station of Stanford University as part of the California Cooperative Oceanic Fisheries Investigations (CalCOFI) program to help understand the environmental conditions surrounding the collapse of the California sardine fishery. The dataset covers Monterey Bay, California, and spans 1955 to 1963, a subset of Hopkins Marine Station's broader weekly CalCOFI sampling program that ran from March 1951 through June 1974. Data were collected through weekly field sampling and later transcribed from the original paper records through a crowdsourcing campaign. This dataset supports historical research on zooplankton community structure and seasonal patterns in Monterey Bay, extending oceanographic observations in the Northeast Pacific decades into the past, and is intended for researchers studying long-term or historical trends in zooplankton populations. This dataset covers only a subset of the full 1951 to 1974 Hopkins Marine Station sampling period; a separate program at Moss Landing Marine Laboratories continued similar sampling from 1974 to 1979.", "keyword": [ "Zooplankton Biomass and Diversity", "Zooplankton" ], "modified": "2026-09-05", "publisher": { "@type": "org:Organization", "name": "Hopkins Marine Station, Stanford University" }, "contactPoint": { "@type": "vcard:Contact", "fn": "CalCOFI data team", "hasEmail": "mailto:data@calcofi.io" }, "accessLevel": "public", "landingPage": "https://calcofi.io/datasets/stanford_hopkins-zooplankton/", "theme": [ "Zooplankton" ], "distribution": [ { "@type": "dcat:Distribution", "title": "source", "accessURL": "https://doi.org/10.25740/nt620vn7810", "mediaType": "text/html" } ] }, { "@type": "dcat:Dataset", "identifier": "https://calcofi.io/datasets/swfsc_ctd-noaa/", "title": "CalCOFI Additional CTD Hydrographic Cast Data-NOAA SWFSC", "description": "CalCOFI Additional CTD Hydrographic Cast Data contains temperature, salinity, and dissolved oxygen measurements from CTD (conductivity-temperature-depth) casts taken during California Cooperative Oceanic Fisheries Investigations (CalCOFI) cruises and related NOAA cruises. The dataset covers primarily the CalCOFI station grid off Southern and Central California, with related NOAA cruises extending north into the Pacific Northwest and offshore, and spans 2002 to 2014. A CTD instrument is lowered through the water column at each station, recording temperature, salinity, dissolved oxygen concentration and saturation, and depth to about 1,000 meters. Most oxygen and salinity values here have not been calibrated against water samples, so users needing calibrated hydrographic data should use the SIO CalCOFI CTD cast and bottle datasets instead, which are corrected using bottle sample comparisons. This dataset is best used as a supplementary record of additional NOAA CTD casts outside the primary SIO hydrographic time series.", "keyword": [ "Temperature", "Salinity", "Dissolved Oxygen", "CalCOFI Network", "Physical Oceanography" ], "modified": "2026-09-05", "publisher": { "@type": "org:Organization", "name": "NOAA Southwest Fisheries Science Center" }, "contactPoint": { "@type": "vcard:Contact", "fn": "CalCOFI data team", "hasEmail": "mailto:data@calcofi.io" }, "accessLevel": "public", "landingPage": "https://calcofi.io/datasets/swfsc_ctd-noaa/", "theme": [ "Physical Oceanography" ], "distribution": [ { "@type": "dcat:Distribution", "title": "source", "accessURL": "https://coastwatch.pfeg.noaa.gov/erddap/tabledap/erdCalCOFINOAAhydros.html", "mediaType": "text/html" } ] } ] }