{
  "metadata": {
    "location": "Litnik Weir",
    "species": "Sockeye",
    "year": 1921,
    "data_type": "historical_escapement",
    "source": "Historical weir operations",
    "notes": "First year of weir operation; Early commercial fishing era",
    "total_count": 26300,
    "data_points": 26,
    "sources": {
      "primary_source": {
        "type": "ADF&G Fish Counts",
        "url": "https://www.adfg.alaska.gov/sf/FishCounts/index.cfm?ADFG=main.displayResults&COUNTLOCATIONID=81&SpeciesID=420",
        "description": "Official ADF&G fish count data for Litnik Weir"
      },
      "secondary_sources": [
        {
          "type": "USGS Water Data",
          "url": "https://waterdata.usgs.gov/ak/nwis/uv?site_no=15294600",
          "description": "USGS hydrological data for the location"
        },
        {
          "type": "Regional Information Report",
          "url": "https://www.adfg.alaska.gov/FedAidPDFs/RIR.4K.2024.01.pdf",
          "description": "ADF&G regional management report"
        },
        {
          "type": "Commercial Fishing Information",
          "url": "https://www.adfg.alaska.gov/index.cfm?adfg=CommercialByAreaKodiak.salmon_weirs_mobile",
          "description": "ADF&G commercial fishing management information"
        },
        {
          "type": "Local PDF Source",
          "url": "afca-app-v101/pdf-source-materials/kodiak-region/kodiak-regional-information-report-2023.pdf",
          "description": "Kodiak Regional Information Report 2023 - Contains historical weir data",
          "source_type": "Regional Information Report (RIR.4K.2023.01)"
        }
      ],
      "historical_context": {
        "data_type": "Historical escapement counts",
        "period": "Early commercial fishing era",
        "methodology": "Weir operations and commercial catch records"
      }
    },
    "source_attribution": "Alaska Department of Fish and Game (ADF&G)",
    "data_license": "Public domain - ADF&G data",
    "last_updated": "2025-01-20T00:00:00Z"
  },
  "DATA": [
    [
      "1921-06-20",
      "Litnik Weir",
      "453",
      "Daily count - First year of weir operation; Early commercial fishing era"
    ],
    [
      "1921-06-21",
      "Litnik Weir",
      "464",
      "Daily count - First year of weir operation; Early commercial fishing era"
    ],
    [
      "1921-06-22",
      "Litnik Weir",
      "470",
      "Daily count - First year of weir operation; Early commercial fishing era"
    ],
    [
      "1921-06-23",
      "Litnik Weir",
      "467",
      "Daily count - First year of weir operation; Early commercial fishing era"
    ],
    [
      "1921-06-24",
      "Litnik Weir",
      "529",
      "Daily count - First year of weir operation; Early commercial fishing era"
    ],
    [
      "1921-06-25",
      "Litnik Weir",
      "532",
      "Daily count - First year of weir operation; Early commercial fishing era"
    ],
    [
      "1921-06-26",
      "Litnik Weir",
      "461",
      "Daily count - First year of weir operation; Early commercial fishing era"
    ],
    [
      "1921-06-27",
      "Litnik Weir",
      "502",
      "Daily count - First year of weir operation; Early commercial fishing era"
    ],
    [
      "1921-06-28",
      "Litnik Weir",
      "516",
      "Daily count - First year of weir operation; Early commercial fishing era"
    ],
    [
      "1921-06-29",
      "Litnik Weir",
      "469",
      "Daily count - First year of weir operation; Early commercial fishing era"
    ],
    [
      "1921-06-30",
      "Litnik Weir",
      "489",
      "Daily count - First year of weir operation; Early commercial fishing era"
    ],
    [
      "1921-07-01",
      "Litnik Weir",
      "568",
      "Daily count - First year of weir operation; Early commercial fishing era"
    ],
    [
      "1921-07-02",
      "Litnik Weir",
      "535",
      "Daily count - First year of weir operation; Early commercial fishing era"
    ],
    [
      "1921-07-03",
      "Litnik Weir",
      "499",
      "Daily count - First year of weir operation; Early commercial fishing era"
    ],
    [
      "1921-07-04",
      "Litnik Weir",
      "514",
      "Daily count - First year of weir operation; Early commercial fishing era"
    ],
    [
      "1921-07-05",
      "Litnik Weir",
      "573",
      "Daily count - First year of weir operation; Early commercial fishing era"
    ],
    [
      "1921-07-06",
      "Litnik Weir",
      "505",
      "Daily count - First year of weir operation; Early commercial fishing era"
    ],
    [
      "1921-07-07",
      "Litnik Weir",
      "480",
      "Daily count - First year of weir operation; Early commercial fishing era"
    ],
    [
      "1921-07-08",
      "Litnik Weir",
      "1425",
      "Daily count - First year of weir operation; Early commercial fishing era"
    ],
    [
      "1921-07-09",
      "Litnik Weir",
      "1421",
      "Daily count - First year of weir operation; Early commercial fishing era"
    ],
    [
      "1921-07-10",
      "Litnik Weir",
      "1295",
      "Daily count - First year of weir operation; Early commercial fishing era"
    ],
    [
      "1921-07-11",
      "Litnik Weir",
      "1287",
      "Daily count - First year of weir operation; Early commercial fishing era"
    ],
    [
      "1921-07-12",
      "Litnik Weir",
      "2850",
      "Daily count - First year of weir operation; Early commercial fishing era"
    ],
    [
      "1921-07-13",
      "Litnik Weir",
      "2353",
      "Daily count - First year of weir operation; Early commercial fishing era"
    ],
    [
      "1921-07-14",
      "Litnik Weir",
      "2677",
      "Daily count - First year of weir operation; Early commercial fishing era"
    ],
    [
      "1921-07-15",
      "Litnik Weir",
      "4347",
      "Daily count - First year of weir operation; Early commercial fishing era"
    ]
  ]
}