{
  "metadata": {
    "location": "Litnik Weir",
    "species": "Sockeye",
    "year": 1941,
    "data_type": "historical_escapement",
    "source": "Historical weir operations",
    "notes": "Weir operations suspended due to WWII; Transition to scientific monitoring",
    "total_count": 28981,
    "data_points": 35,
    "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": [
    [
      "1941-06-15",
      "Litnik Weir",
      "510",
      "Daily count - Weir operations suspended due to WWII; Transition to scientific monitoring"
    ],
    [
      "1941-06-16",
      "Litnik Weir",
      "642",
      "Daily count - Weir operations suspended due to WWII; Transition to scientific monitoring"
    ],
    [
      "1941-06-17",
      "Litnik Weir",
      "517",
      "Daily count - Weir operations suspended due to WWII; Transition to scientific monitoring"
    ],
    [
      "1941-06-18",
      "Litnik Weir",
      "574",
      "Daily count - Weir operations suspended due to WWII; Transition to scientific monitoring"
    ],
    [
      "1941-06-19",
      "Litnik Weir",
      "645",
      "Daily count - Weir operations suspended due to WWII; Transition to scientific monitoring"
    ],
    [
      "1941-06-20",
      "Litnik Weir",
      "499",
      "Daily count - Weir operations suspended due to WWII; Transition to scientific monitoring"
    ],
    [
      "1941-06-21",
      "Litnik Weir",
      "511",
      "Daily count - Weir operations suspended due to WWII; Transition to scientific monitoring"
    ],
    [
      "1941-06-22",
      "Litnik Weir",
      "518",
      "Daily count - Weir operations suspended due to WWII; Transition to scientific monitoring"
    ],
    [
      "1941-06-23",
      "Litnik Weir",
      "515",
      "Daily count - Weir operations suspended due to WWII; Transition to scientific monitoring"
    ],
    [
      "1941-06-24",
      "Litnik Weir",
      "583",
      "Daily count - Weir operations suspended due to WWII; Transition to scientific monitoring"
    ],
    [
      "1941-06-25",
      "Litnik Weir",
      "586",
      "Daily count - Weir operations suspended due to WWII; Transition to scientific monitoring"
    ],
    [
      "1941-06-26",
      "Litnik Weir",
      "508",
      "Daily count - Weir operations suspended due to WWII; Transition to scientific monitoring"
    ],
    [
      "1941-06-27",
      "Litnik Weir",
      "553",
      "Daily count - Weir operations suspended due to WWII; Transition to scientific monitoring"
    ],
    [
      "1941-06-28",
      "Litnik Weir",
      "569",
      "Daily count - Weir operations suspended due to WWII; Transition to scientific monitoring"
    ],
    [
      "1941-06-29",
      "Litnik Weir",
      "517",
      "Daily count - Weir operations suspended due to WWII; Transition to scientific monitoring"
    ],
    [
      "1941-06-30",
      "Litnik Weir",
      "539",
      "Daily count - Weir operations suspended due to WWII; Transition to scientific monitoring"
    ],
    [
      "1941-07-01",
      "Litnik Weir",
      "626",
      "Daily count - Weir operations suspended due to WWII; Transition to scientific monitoring"
    ],
    [
      "1941-07-02",
      "Litnik Weir",
      "590",
      "Daily count - Weir operations suspended due to WWII; Transition to scientific monitoring"
    ],
    [
      "1941-07-03",
      "Litnik Weir",
      "550",
      "Daily count - Weir operations suspended due to WWII; Transition to scientific monitoring"
    ],
    [
      "1941-07-04",
      "Litnik Weir",
      "567",
      "Daily count - Weir operations suspended due to WWII; Transition to scientific monitoring"
    ],
    [
      "1941-07-05",
      "Litnik Weir",
      "631",
      "Daily count - Weir operations suspended due to WWII; Transition to scientific monitoring"
    ],
    [
      "1941-07-06",
      "Litnik Weir",
      "557",
      "Daily count - Weir operations suspended due to WWII; Transition to scientific monitoring"
    ],
    [
      "1941-07-07",
      "Litnik Weir",
      "529",
      "Daily count - Weir operations suspended due to WWII; Transition to scientific monitoring"
    ],
    [
      "1941-07-08",
      "Litnik Weir",
      "628",
      "Daily count - Weir operations suspended due to WWII; Transition to scientific monitoring"
    ],
    [
      "1941-07-09",
      "Litnik Weir",
      "626",
      "Daily count - Weir operations suspended due to WWII; Transition to scientific monitoring"
    ],
    [
      "1941-07-10",
      "Litnik Weir",
      "570",
      "Daily count - Weir operations suspended due to WWII; Transition to scientific monitoring"
    ],
    [
      "1941-07-11",
      "Litnik Weir",
      "567",
      "Daily count - Weir operations suspended due to WWII; Transition to scientific monitoring"
    ],
    [
      "1941-07-12",
      "Litnik Weir",
      "628",
      "Daily count - Weir operations suspended due to WWII; Transition to scientific monitoring"
    ],
    [
      "1941-07-13",
      "Litnik Weir",
      "1296",
      "Daily count - Weir operations suspended due to WWII; Transition to scientific monitoring"
    ],
    [
      "1941-07-14",
      "Litnik Weir",
      "1475",
      "Daily count - Weir operations suspended due to WWII; Transition to scientific monitoring"
    ],
    [
      "1941-07-15",
      "Litnik Weir",
      "1596",
      "Daily count - Weir operations suspended due to WWII; Transition to scientific monitoring"
    ],
    [
      "1941-07-16",
      "Litnik Weir",
      "1340",
      "Daily count - Weir operations suspended due to WWII; Transition to scientific monitoring"
    ],
    [
      "1941-07-17",
      "Litnik Weir",
      "2532",
      "Daily count - Weir operations suspended due to WWII; Transition to scientific monitoring"
    ],
    [
      "1941-07-18",
      "Litnik Weir",
      "2489",
      "Daily count - Weir operations suspended due to WWII; Transition to scientific monitoring"
    ],
    [
      "1941-07-19",
      "Litnik Weir",
      "3002",
      "Daily count - Weir operations suspended due to WWII; Transition to scientific monitoring"
    ]
  ]
}