{
    "river": {
        "name": "le Néant",
        "course_code": "K46-0300",
        "topage_code": null
    },
    "dataset": "species",
    "extracted_at": "2026-09-22T02:00:33+02:00",
    "source_note": "RivièreScope agrège des données publiques ; consultez /sources/ pour les producteurs et licences.",
    "data": [
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            "observation_count": 693,
            "individual_count": null,
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            "last_year": 2025
        },
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            "species_code": "2129",
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            "observation_count": 524,
            "individual_count": null,
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            "last_year": 2025
        },
        {
            "species_code": "2131",
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            "observation_count": 245,
            "individual_count": null,
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            "last_year": 2025
        },
        {
            "species_code": "2050",
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            "scientific_name": "Lepomis gibbosus",
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            "observation_count": 170,
            "individual_count": null,
            "first_year": 2007,
            "last_year": 2025
        },
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            "species_code": "2090",
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            "observation_count": 164,
            "individual_count": null,
            "first_year": 2007,
            "last_year": 2025
        },
        {
            "species_code": "2135",
            "common_name": "Rotengle",
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            "observation_count": 117,
            "individual_count": null,
            "first_year": 2011,
            "last_year": 2023
        },
        {
            "species_code": "2133",
            "common_name": "Gardon",
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            "observation_count": 105,
            "individual_count": null,
            "first_year": 2007,
            "last_year": 2017
        },
        {
            "species_code": "2088",
            "common_name": "Spirlin",
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            "observation_count": 90,
            "individual_count": null,
            "first_year": 2007,
            "last_year": 2025
        },
        {
            "species_code": "2193",
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            "observation_count": 79,
            "individual_count": null,
            "first_year": 2007,
            "last_year": 2025
        },
        {
            "species_code": "2071",
            "common_name": "Loche franche",
            "scientific_name": "Barbatula barbatula",
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            "individual_count": null,
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            "last_year": 2013
        },
        {
            "species_code": "2038",
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            "scientific_name": "Anguilla anguilla",
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            "observation_count": 32,
            "individual_count": null,
            "first_year": 2007,
            "last_year": 2025
        },
        {
            "species_code": "2110",
            "common_name": "Carpe commune",
            "scientific_name": "Cyprinus carpio",
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            "observation_count": 31,
            "individual_count": null,
            "first_year": 2007,
            "last_year": 2023
        },
        {
            "species_code": "2086",
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            "scientific_name": "Abramis brama",
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            "observation_count": 29,
            "individual_count": null,
            "first_year": 2007,
            "last_year": 2025
        },
        {
            "species_code": "2099",
            "common_name": "Brème bordelière",
            "scientific_name": "Blicca bjoerkna",
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            "observation_count": 29,
            "individual_count": null,
            "first_year": 2007,
            "last_year": 2025
        },
        {
            "species_code": "2238",
            "common_name": "Silure glane",
            "scientific_name": "Silurus glanis",
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            "observation_count": 23,
            "individual_count": null,
            "first_year": 2007,
            "last_year": 2025
        },
        {
            "species_code": "20550",
            "common_name": "Carassin argenté",
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            "observation_count": 21,
            "individual_count": null,
            "first_year": 2007,
            "last_year": 2025
        },
        {
            "species_code": "31041",
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            "scientific_name": "Leuciscus cephalus",
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            "observation_count": 20,
            "individual_count": null,
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            "last_year": 2013
        },
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            "species_code": "2177",
            "common_name": "Poisson-chat",
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            "observation_count": 18,
            "individual_count": null,
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            "last_year": 2015
        },
        {
            "species_code": "2195",
            "common_name": "Sandre",
            "scientific_name": "Sander lucioperca",
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            "observation_count": 15,
            "individual_count": null,
            "first_year": 2009,
            "last_year": 2021
        },
        {
            "species_code": "2028",
            "common_name": "Ecrevisse de Louisiane",
            "scientific_name": "Procambarus clarkii",
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            "observation_count": 13,
            "individual_count": null,
            "first_year": 2021,
            "last_year": 2025
        },
        {
            "species_code": "2121",
            "common_name": "Ide mélanote",
            "scientific_name": "Leuciscus idus",
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            "observation_count": 11,
            "individual_count": null,
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            "last_year": 2019
        },
        {
            "species_code": "2109",
            "common_name": "Carpe miroir",
            "scientific_name": "Cyprinus carpio",
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            "observation_count": 9,
            "individual_count": null,
            "first_year": 2007,
            "last_year": 2025
        },
        {
            "species_code": "2191",
            "common_name": "Grémille",
            "scientific_name": "Gymnocephalus cernua",
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            "observation_count": 8,
            "individual_count": null,
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            "last_year": 2019
        },
        {
            "species_code": "2137",
            "common_name": "Tanche",
            "scientific_name": "Tinca tinca",
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            "observation_count": 5,
            "individual_count": null,
            "first_year": 2007,
            "last_year": 2023
        },
        {
            "species_code": "68137",
            "common_name": "Ecrevisse américaine",
            "scientific_name": "Faxonius limosus",
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            "observation_count": 3,
            "individual_count": null,
            "first_year": 2013,
            "last_year": 2013
        },
        {
            "species_code": "2151",
            "common_name": "Brochet commun",
            "scientific_name": "Esox lucius",
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            "observation_count": 2,
            "individual_count": null,
            "first_year": 2009,
            "last_year": 2015
        },
        {
            "species_code": "2084",
            "common_name": "Cyprinidé indéterminé (Cyprinidae)",
            "scientific_name": "Cyprinidae sp.",
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            "observation_count": 1,
            "individual_count": null,
            "first_year": 2011,
            "last_year": 2011
        },
        {
            "species_code": "2102",
            "common_name": "Carassin commun",
            "scientific_name": "Carassius carassius",
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            "observation_count": 1,
            "individual_count": null,
            "first_year": 2009,
            "last_year": 2009
        },
        {
            "species_code": "5205",
            "common_name": "Hybride brème-gardon",
            "scientific_name": "Hybride brème-gardon",
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            "observation_count": 1,
            "individual_count": null,
            "first_year": 2011,
            "last_year": 2011
        }
    ]
}