{
    "river": {
        "name": "la Nièvre",
        "course_code": "E6450650",
        "topage_code": null
    },
    "dataset": "species",
    "extracted_at": "2026-09-22T02:25:13+02:00",
    "source_note": "RivièreScope agrège des données publiques ; consultez /sources/ pour les producteurs et licences.",
    "data": [
        {
            "species_code": "2080",
            "common_name": "Chabot",
            "scientific_name": "Cottus gobio",
            "operation_count": 4,
            "observation_count": 276,
            "individual_count": null,
            "first_year": 2007,
            "last_year": 2015
        },
        {
            "species_code": "2221",
            "common_name": "Truite de riviere",
            "scientific_name": "Salmo trutta",
            "operation_count": 4,
            "observation_count": 195,
            "individual_count": null,
            "first_year": 2007,
            "last_year": 2015
        },
        {
            "species_code": "2010",
            "common_name": "Lamproie indéterminée (genre Lampetra)",
            "scientific_name": "Lampetra spp",
            "operation_count": 1,
            "observation_count": 30,
            "individual_count": null,
            "first_year": 2015,
            "last_year": 2015
        },
        {
            "species_code": "2133",
            "common_name": "Gardon",
            "scientific_name": "Rutilus rutilus",
            "operation_count": 2,
            "observation_count": 25,
            "individual_count": null,
            "first_year": 2013,
            "last_year": 2015
        },
        {
            "species_code": "2012",
            "common_name": "Lamproie de Planer",
            "scientific_name": "Lampetra planeri",
            "operation_count": 3,
            "observation_count": 13,
            "individual_count": null,
            "first_year": 2007,
            "last_year": 2015
        },
        {
            "species_code": "2038",
            "common_name": "Anguille européenne",
            "scientific_name": "Anguilla anguilla",
            "operation_count": 1,
            "observation_count": 6,
            "individual_count": null,
            "first_year": 2015,
            "last_year": 2015
        },
        {
            "species_code": "2165",
            "common_name": "Epinoche",
            "scientific_name": "Gasterosteus aculeatus",
            "operation_count": 1,
            "observation_count": 5,
            "individual_count": null,
            "first_year": 2015,
            "last_year": 2015
        },
        {
            "species_code": "2050",
            "common_name": "Perche soleil",
            "scientific_name": "Lepomis gibbosus",
            "operation_count": 1,
            "observation_count": 4,
            "individual_count": null,
            "first_year": 2013,
            "last_year": 2013
        },
        {
            "species_code": "2099",
            "common_name": "Brème bordelière",
            "scientific_name": "Blicca bjoerkna",
            "operation_count": 1,
            "observation_count": 1,
            "individual_count": null,
            "first_year": 2015,
            "last_year": 2015
        }
    ]
}