{
    "river": {
        "name": "L'Arnoult",
        "course_code": "R71-0402",
        "topage_code": null
    },
    "dataset": "species",
    "extracted_at": "2026-09-22T01:53:35+02:00",
    "source_note": "RivièreScope agrège des données publiques ; consultez /sources/ pour les producteurs et licences.",
    "data": [
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            "individual_count": null,
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            "last_year": 2023
        },
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            "species_code": "2090",
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            "individual_count": null,
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            "last_year": 2023
        },
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            "scientific_name": "Gobio gobio",
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            "observation_count": 380,
            "individual_count": null,
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            "last_year": 2021
        },
        {
            "species_code": "31041",
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            "observation_count": 307,
            "individual_count": null,
            "first_year": 2009,
            "last_year": 2023
        },
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            "species_code": "2050",
            "common_name": "Perche soleil",
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            "observation_count": 297,
            "individual_count": null,
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            "last_year": 2023
        },
        {
            "species_code": "2208",
            "common_name": "Gambusie de l'ouest",
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            "observation_count": 287,
            "individual_count": null,
            "first_year": 2009,
            "last_year": 2023
        },
        {
            "species_code": "2125",
            "common_name": "Vairon",
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            "observation_count": 279,
            "individual_count": null,
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            "last_year": 2021
        },
        {
            "species_code": "2038",
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            "observation_count": 250,
            "individual_count": null,
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            "last_year": 2023
        },
        {
            "species_code": "2177",
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            "observation_count": 112,
            "individual_count": null,
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            "last_year": 2023
        },
        {
            "species_code": "2137",
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            "observation_count": 74,
            "individual_count": null,
            "first_year": 2009,
            "last_year": 2023
        },
        {
            "species_code": "2084",
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            "observation_count": 65,
            "individual_count": null,
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            "last_year": 2013
        },
        {
            "species_code": "2117",
            "common_name": "Able de Heckel",
            "scientific_name": "Leucaspius delineatus",
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            "individual_count": null,
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            "last_year": 2017
        },
        {
            "species_code": "2086",
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            "scientific_name": "Abramis brama",
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            "observation_count": 59,
            "individual_count": null,
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            "last_year": 2017
        },
        {
            "species_code": "2193",
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            "observation_count": 50,
            "individual_count": null,
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            "last_year": 2023
        },
        {
            "species_code": "2129",
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            "observation_count": 44,
            "individual_count": null,
            "first_year": 2023,
            "last_year": 2023
        },
        {
            "species_code": "2028",
            "common_name": "Ecrevisse de Louisiane",
            "scientific_name": "Procambarus clarkii",
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            "observation_count": 32,
            "individual_count": null,
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            "last_year": 2023
        },
        {
            "species_code": "68137",
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            "scientific_name": "Faxonius limosus",
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            "observation_count": 30,
            "individual_count": null,
            "first_year": 2011,
            "last_year": 2023
        },
        {
            "species_code": "2110",
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            "observation_count": 23,
            "individual_count": null,
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            "last_year": 2021
        },
        {
            "species_code": "2112",
            "common_name": "Goujon indéterminé (Gobio)",
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            "observation_count": 14,
            "individual_count": null,
            "first_year": 2023,
            "last_year": 2023
        },
        {
            "species_code": "2099",
            "common_name": "Brème bordelière",
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            "individual_count": null,
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            "last_year": 2017
        },
        {
            "species_code": "2122",
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            "individual_count": null,
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            "last_year": 2009
        },
        {
            "species_code": "65080",
            "common_name": "Gambusie de l'est (métropole)",
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            "observation_count": 7,
            "individual_count": null,
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            "last_year": 2021
        },
        {
            "species_code": "2124",
            "common_name": "Vairon indéterminé (Phoxinus)",
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            "observation_count": 5,
            "individual_count": null,
            "first_year": 2023,
            "last_year": 2023
        },
        {
            "species_code": "2167",
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            "observation_count": 4,
            "individual_count": null,
            "first_year": 2013,
            "last_year": 2021
        },
        {
            "species_code": "2151",
            "common_name": "Brochet commun",
            "scientific_name": "Esox lucius",
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            "observation_count": 4,
            "individual_count": null,
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            "last_year": 2017
        },
        {
            "species_code": "2071",
            "common_name": "Loche franche",
            "scientific_name": "Barbatula barbatula",
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            "observation_count": 3,
            "individual_count": null,
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            "last_year": 2021
        },
        {
            "species_code": "2109",
            "common_name": "Carpe miroir",
            "scientific_name": "Cyprinus carpio",
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            "observation_count": 1,
            "individual_count": null,
            "first_year": 2011,
            "last_year": 2011
        },
        {
            "species_code": "2123",
            "common_name": "Vandoise rostrée",
            "scientific_name": "Leuciscus burdigalensis",
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            "observation_count": 1,
            "individual_count": null,
            "first_year": 2021,
            "last_year": 2021
        },
        {
            "species_code": "2121",
            "common_name": "Ide mélanote",
            "scientific_name": "Leuciscus idus",
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            "observation_count": 1,
            "individual_count": null,
            "first_year": 2020,
            "last_year": 2020
        },
        {
            "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": 2017,
            "last_year": 2017
        },
        {
            "species_code": "2165",
            "common_name": "Epinoche",
            "scientific_name": "Gasterosteus aculeatus",
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            "observation_count": 1,
            "individual_count": null,
            "first_year": 2021,
            "last_year": 2021
        }
    ]
}