{
    "river": {
        "name": "La Nive",
        "course_code": "Q9--0250",
        "topage_code": null
    },
    "dataset": "species",
    "extracted_at": "2026-09-22T01:53:25+02:00",
    "source_note": "RivièreScope agrège des données publiques ; consultez /sources/ pour les producteurs et licences.",
    "data": [
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            "common_name": "Vairon",
            "scientific_name": "Phoxinus phoxinus",
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            "observation_count": 2444,
            "individual_count": null,
            "first_year": 2005,
            "last_year": 2023
        },
        {
            "species_code": "2221",
            "common_name": "Truite de riviere",
            "scientific_name": "Salmo trutta",
            "operation_count": 36,
            "observation_count": 2122,
            "individual_count": null,
            "first_year": 2005,
            "last_year": 2025
        },
        {
            "species_code": "2113",
            "common_name": "Goujon commun",
            "scientific_name": "Gobio gobio",
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            "observation_count": 1277,
            "individual_count": null,
            "first_year": 2008,
            "last_year": 2023
        },
        {
            "species_code": "2071",
            "common_name": "Loche franche",
            "scientific_name": "Barbatula barbatula",
            "operation_count": 21,
            "observation_count": 1247,
            "individual_count": null,
            "first_year": 2008,
            "last_year": 2025
        },
        {
            "species_code": "2124",
            "common_name": "Vairon indéterminé (Phoxinus)",
            "scientific_name": "Phoxinus sp.",
            "operation_count": 6,
            "observation_count": 470,
            "individual_count": null,
            "first_year": 2014,
            "last_year": 2025
        },
        {
            "species_code": "2096",
            "common_name": "Barbeau fluviatile",
            "scientific_name": "Barbus barbus",
            "operation_count": 19,
            "observation_count": 394,
            "individual_count": null,
            "first_year": 2008,
            "last_year": 2025
        },
        {
            "species_code": "2220",
            "common_name": "Saumon atlantique",
            "scientific_name": "Salmo salar",
            "operation_count": 24,
            "observation_count": 356,
            "individual_count": null,
            "first_year": 2005,
            "last_year": 2025
        },
        {
            "species_code": "2112",
            "common_name": "Goujon indéterminé (Gobio)",
            "scientific_name": "Gobio sp.",
            "operation_count": 3,
            "observation_count": 222,
            "individual_count": null,
            "first_year": 2024,
            "last_year": 2025
        },
        {
            "species_code": "2038",
            "common_name": "Anguille européenne",
            "scientific_name": "Anguilla anguilla",
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            "observation_count": 164,
            "individual_count": null,
            "first_year": 2008,
            "last_year": 2025
        },
        {
            "species_code": "2080",
            "common_name": "Chabot",
            "scientific_name": "Cottus gobio",
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            "observation_count": 85,
            "individual_count": null,
            "first_year": 2005,
            "last_year": 2025
        },
        {
            "species_code": "2010",
            "common_name": "Lamproie indéterminée (genre Lampetra)",
            "scientific_name": "Lampetra spp",
            "operation_count": 8,
            "observation_count": 60,
            "individual_count": null,
            "first_year": 2018,
            "last_year": 2025
        },
        {
            "species_code": "2014",
            "common_name": "Lamproie marine",
            "scientific_name": "Petromyzon marinus",
            "operation_count": 8,
            "observation_count": 53,
            "individual_count": null,
            "first_year": 2008,
            "last_year": 2024
        },
        {
            "species_code": "31135",
            "common_name": "Toxostome",
            "scientific_name": "Parachondrostoma toxostoma",
            "operation_count": 1,
            "observation_count": 40,
            "individual_count": null,
            "first_year": 2021,
            "last_year": 2021
        },
        {
            "species_code": "2123",
            "common_name": "Vandoise rostrée",
            "scientific_name": "Leuciscus burdigalensis",
            "operation_count": 3,
            "observation_count": 35,
            "individual_count": null,
            "first_year": 2016,
            "last_year": 2017
        },
        {
            "species_code": "31041",
            "common_name": "Chevaine",
            "scientific_name": "Leuciscus cephalus",
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            "observation_count": 35,
            "individual_count": null,
            "first_year": 2016,
            "last_year": 2024
        },
        {
            "species_code": "2084",
            "common_name": "Cyprinidé indéterminé (Cyprinidae)",
            "scientific_name": "Cyprinidae sp.",
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            "observation_count": 34,
            "individual_count": null,
            "first_year": 2018,
            "last_year": 2024
        },
        {
            "species_code": "2122",
            "common_name": "Vandoise",
            "scientific_name": "Leuciscus leuciscus",
            "operation_count": 3,
            "observation_count": 26,
            "individual_count": null,
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            "last_year": 2014
        },
        {
            "species_code": "2012",
            "common_name": "Lamproie de Planer",
            "scientific_name": "Lampetra planeri",
            "operation_count": 4,
            "observation_count": 11,
            "individual_count": null,
            "first_year": 2010,
            "last_year": 2019
        },
        {
            "species_code": "31337",
            "common_name": "Goujon de l’Adour",
            "scientific_name": "Gobio lozanoi",
            "operation_count": 1,
            "observation_count": 7,
            "individual_count": null,
            "first_year": 2014,
            "last_year": 2014
        },
        {
            "species_code": "873",
            "common_name": "Ecrevisse signal",
            "scientific_name": "Pacifastacus leniusculus",
            "operation_count": 1,
            "observation_count": 3,
            "individual_count": null,
            "first_year": 2019,
            "last_year": 2019
        },
        {
            "species_code": "2216",
            "common_name": "Truite arc-en-ciel",
            "scientific_name": "Oncorhynchus mykiss",
            "operation_count": 1,
            "observation_count": 1,
            "individual_count": null,
            "first_year": 2024,
            "last_year": 2024
        },
        {
            "species_code": "2224",
            "common_name": "Truite de mer",
            "scientific_name": "Salmo trutta",
            "operation_count": 1,
            "observation_count": 1,
            "individual_count": null,
            "first_year": 2008,
            "last_year": 2008
        },
        {
            "species_code": "31336",
            "common_name": "Vairon béarnais",
            "scientific_name": "Phoxinus bigerri",
            "operation_count": 1,
            "observation_count": 1,
            "individual_count": null,
            "first_year": 2014,
            "last_year": 2014
        }
    ]
}