{
  "dataset_key": "cce-lter_euphausiids",
  "provider": {
    "key": "cce-lter",
    "short": "CCE-LTER",
    "name": "California Current Ecosystem Long Term Ecological Research",
    "url": "https://ccelter.ucsd.edu",
    "registered": true
  },
  "dataset": "euphausiids",
  "dataset_name": "CCE-LTER Euphausiid Abundance",
  "dataset_name_short": "Euphausiids (Krill)",
  "category": {
    "name": "Euphausiids (Krill)",
    "realm": "bio",
    "icon": "cat-krill",
    "order": 9,
    "registered": true
  },
  "color": "#b197fc",
  "visibility": "public",
  "description_md": "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).\n",
  "keywords": [
    "EARTH SCIENCE > BIOSPHERE > ECOSYSTEMS > AQUATIC ECOSYSTEMS > PLANKTON > ZOOPLANKTON",
    "EARTH SCIENCE > BIOLOGICAL CLASSIFICATION > ANIMALS/INVERTEBRATES > ARTHROPODS > CRUSTACEANS > EUPHAUSIIDS (KRILL)"
  ],
  "attribution": {
    "citation_main": "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",
    "citation_others": [],
    "doi": "10.6073/pasta/4a92a0044bcd1523a4f994ece874a57d",
    "license": "custom",
    "license_name": "Custom terms stated by the provider",
    "license_url": "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.",
    "contact": null,
    "pi_names": [
      "Rasmus Swalethorp",
      "Linsey Sala"
    ],
    "creators": [],
    "funding": null,
    "source_accessed": "2026-09-04"
  },
  "links": {
    "calcofi_org": null,
    "data_source": "https://portal.edirepository.org/nis/mapbrowse?scope=knb-lter-cce&identifier=313",
    "workflow": "https://calcofi.io/workflows/ingest_cce-lter_euphausiids.html",
    "page": "https://calcofi.io/datasets/cce-lter_euphausiids/"
  },
  "coverage": {
    "realm": "bio",
    "temporal": "1951-01 to 2019-04",
    "year_min": 1951,
    "year_max": 2019,
    "years": [
      {
        "year": 1951,
        "n_obs": 1468,
        "n_roots": 110
      },
      {
        "year": 1952,
        "n_obs": 1031,
        "n_roots": 82
      },
      {
        "year": 1953,
        "n_obs": 2031,
        "n_roots": 191
      },
      {
        "year": 1954,
        "n_obs": 2369,
        "n_roots": 192
      },
      {
        "year": 1955,
        "n_obs": 3375,
        "n_roots": 292
      },
      {
        "year": 1956,
        "n_obs": 1831,
        "n_roots": 165
      },
      {
        "year": 1957,
        "n_obs": 2173,
        "n_roots": 139
      },
      {
        "year": 1958,
        "n_obs": 4111,
        "n_roots": 225
      },
      {
        "year": 1959,
        "n_obs": 4560,
        "n_roots": 253
      },
      {
        "year": 1960,
        "n_obs": 1535,
        "n_roots": 139
      },
      {
        "year": 1961,
        "n_obs": 762,
        "n_roots": 94
      },
      {
        "year": 1962,
        "n_obs": 890,
        "n_roots": 100
      },
      {
        "year": 1963,
        "n_obs": 1407,
        "n_roots": 149
      },
      {
        "year": 1964,
        "n_obs": 1012,
        "n_roots": 115
      },
      {
        "year": 1965,
        "n_obs": 935,
        "n_roots": 116
      },
      {
        "year": 1966,
        "n_obs": 1501,
        "n_roots": 171
      },
      {
        "year": 1967,
        "n_obs": 208,
        "n_roots": 31
      },
      {
        "year": 1968,
        "n_obs": 913,
        "n_roots": 106
      },
      {
        "year": 1969,
        "n_obs": 10542,
        "n_roots": 489
      },
      {
        "year": 1970,
        "n_obs": 403,
        "n_roots": 44
      },
      {
        "year": 1972,
        "n_obs": 1095,
        "n_roots": 117
      },
      {
        "year": 1974,
        "n_obs": 314,
        "n_roots": 37
      },
      {
        "year": 1975,
        "n_obs": 1669,
        "n_roots": 198
      },
      {
        "year": 1976,
        "n_obs": 109,
        "n_roots": 20
      },
      {
        "year": 1977,
        "n_obs": 1599,
        "n_roots": 119
      },
      {
        "year": 1978,
        "n_obs": 7307,
        "n_roots": 493
      },
      {
        "year": 1979,
        "n_obs": 1162,
        "n_roots": 104
      },
      {
        "year": 1980,
        "n_obs": 1036,
        "n_roots": 97
      },
      {
        "year": 1981,
        "n_obs": 1078,
        "n_roots": 105
      },
      {
        "year": 1982,
        "n_obs": 949,
        "n_roots": 97
      },
      {
        "year": 1983,
        "n_obs": 2135,
        "n_roots": 136
      },
      {
        "year": 1984,
        "n_obs": 10970,
        "n_roots": 497
      },
      {
        "year": 1985,
        "n_obs": 1090,
        "n_roots": 127
      },
      {
        "year": 1986,
        "n_obs": 1298,
        "n_roots": 114
      },
      {
        "year": 1987,
        "n_obs": 691,
        "n_roots": 75
      },
      {
        "year": 1988,
        "n_obs": 1190,
        "n_roots": 97
      },
      {
        "year": 1989,
        "n_obs": 1311,
        "n_roots": 134
      },
      {
        "year": 1990,
        "n_obs": 1626,
        "n_roots": 107
      },
      {
        "year": 1991,
        "n_obs": 1922,
        "n_roots": 129
      },
      {
        "year": 1992,
        "n_obs": 919,
        "n_roots": 84
      },
      {
        "year": 1993,
        "n_obs": 1279,
        "n_roots": 100
      },
      {
        "year": 1994,
        "n_obs": 1135,
        "n_roots": 91
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      {
        "year": 1995,
        "n_obs": 992,
        "n_roots": 83
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      {
        "year": 1996,
        "n_obs": 929,
        "n_roots": 89
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      {
        "year": 1997,
        "n_obs": 881,
        "n_roots": 89
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      {
        "year": 1998,
        "n_obs": 1599,
        "n_roots": 111
      },
      {
        "year": 1999,
        "n_obs": 1341,
        "n_roots": 116
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      {
        "year": 2000,
        "n_obs": 1195,
        "n_roots": 111
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      {
        "year": 2001,
        "n_obs": 871,
        "n_roots": 80
      },
      {
        "year": 2002,
        "n_obs": 703,
        "n_roots": 64
      },
      {
        "year": 2003,
        "n_obs": 452,
        "n_roots": 32
      },
      {
        "year": 2004,
        "n_obs": 387,
        "n_roots": 25
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      {
        "year": 2005,
        "n_obs": 422,
        "n_roots": 28
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      {
        "year": 2006,
        "n_obs": 384,
        "n_roots": 29
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      {
        "year": 2007,
        "n_obs": 297,
        "n_roots": 20
      },
      {
        "year": 2008,
        "n_obs": 217,
        "n_roots": 19
      },
      {
        "year": 2009,
        "n_obs": 712,
        "n_roots": 56
      },
      {
        "year": 2010,
        "n_obs": 371,
        "n_roots": 26
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      {
        "year": 2011,
        "n_obs": 264,
        "n_roots": 17
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      {
        "year": 2012,
        "n_obs": 460,
        "n_roots": 31
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      {
        "year": 2013,
        "n_obs": 372,
        "n_roots": 22
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      {
        "year": 2014,
        "n_obs": 309,
        "n_roots": 21
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      {
        "year": 2015,
        "n_obs": 408,
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      {
        "year": 2016,
        "n_obs": 662,
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      },
      {
        "year": 2017,
        "n_obs": 511,
        "n_roots": 27
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      {
        "year": 2018,
        "n_obs": 536,
        "n_roots": 32
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      {
        "year": 2019,
        "n_obs": 282,
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    ],
    "spatial": "28.0–46.6°N, 133.5–117.3°W",
    "bbox": {
      "lat_min": 28,
      "lat_max": 46.6,
      "lon_min": -133.467,
      "lon_max": -117.283
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    "n_obs": 100505,
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    "n_stations": 114,
    "n_variables": 1,
    "n_taxa": 37,
    "depth_min_m": null,
    "depth_max_m": null,
    "variables": [
      "euphausiid_abundance"
    ],
    "life_stages": [
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      "calyptopis C1",
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      "furcilia",
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      "furcilia F5",
      "furcilia F6",
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    ],
    "contributes_to": []
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}