{
    "river": {
        "name": "la Roumer",
        "course_code": "K6814000",
        "topage_code": null
    },
    "dataset": "species",
    "extracted_at": "2026-09-22T01:53:53+02:00",
    "source_note": "RivièreScope agrège des données publiques ; consultez /sources/ pour les producteurs et licences.",
    "data": [
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            "observation_count": 1508,
            "individual_count": null,
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            "last_year": 2025
        },
        {
            "species_code": "2071",
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            "scientific_name": "Barbatula barbatula",
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            "observation_count": 1235,
            "individual_count": null,
            "first_year": 1994,
            "last_year": 2025
        },
        {
            "species_code": "2113",
            "common_name": "Goujon commun",
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            "observation_count": 1080,
            "individual_count": null,
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            "last_year": 2025
        },
        {
            "species_code": "2125",
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            "scientific_name": "Phoxinus phoxinus",
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            "observation_count": 1074,
            "individual_count": null,
            "first_year": 1994,
            "last_year": 2025
        },
        {
            "species_code": "2133",
            "common_name": "Gardon",
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            "observation_count": 1060,
            "individual_count": null,
            "first_year": 1994,
            "last_year": 2025
        },
        {
            "species_code": "31041",
            "common_name": "Chevaine",
            "scientific_name": "Leuciscus cephalus",
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            "observation_count": 657,
            "individual_count": null,
            "first_year": 1994,
            "last_year": 2025
        },
        {
            "species_code": "2050",
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            "observation_count": 448,
            "individual_count": null,
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            "last_year": 2025
        },
        {
            "species_code": "2038",
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            "scientific_name": "Anguilla anguilla",
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            "observation_count": 302,
            "individual_count": null,
            "first_year": 1994,
            "last_year": 2025
        },
        {
            "species_code": "2131",
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            "scientific_name": "Rhodeus amarus",
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            "observation_count": 189,
            "individual_count": null,
            "first_year": 1996,
            "last_year": 2009
        },
        {
            "species_code": "2012",
            "common_name": "Lamproie de Planer",
            "scientific_name": "Lampetra planeri",
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            "observation_count": 176,
            "individual_count": null,
            "first_year": 1994,
            "last_year": 2025
        },
        {
            "species_code": "2193",
            "common_name": "Perche",
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            "observation_count": 112,
            "individual_count": null,
            "first_year": 1996,
            "last_year": 2021
        },
        {
            "species_code": "2167",
            "common_name": "Epinochette",
            "scientific_name": "Pungitius pungitius",
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            "observation_count": 111,
            "individual_count": null,
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            "last_year": 2025
        },
        {
            "species_code": "2135",
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            "observation_count": 77,
            "individual_count": null,
            "first_year": 1994,
            "last_year": 2025
        },
        {
            "species_code": "2137",
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            "observation_count": 35,
            "individual_count": null,
            "first_year": 1994,
            "last_year": 2019
        },
        {
            "species_code": "2110",
            "common_name": "Carpe commune",
            "scientific_name": "Cyprinus carpio",
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            "observation_count": 18,
            "individual_count": null,
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            "last_year": 2025
        },
        {
            "species_code": "2151",
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            "scientific_name": "Esox lucius",
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            "observation_count": 15,
            "individual_count": null,
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            "last_year": 2023
        },
        {
            "species_code": "2221",
            "common_name": "Truite de riviere",
            "scientific_name": "Salmo trutta",
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            "observation_count": 15,
            "individual_count": null,
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            "last_year": 2005
        },
        {
            "species_code": "2086",
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            "observation_count": 13,
            "individual_count": null,
            "first_year": 1994,
            "last_year": 2023
        },
        {
            "species_code": "2129",
            "common_name": "Pseudorasbora",
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            "observation_count": 10,
            "individual_count": null,
            "first_year": 2004,
            "last_year": 2025
        },
        {
            "species_code": "2109",
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            "scientific_name": "Cyprinus carpio",
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            "observation_count": 7,
            "individual_count": null,
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            "last_year": 2019
        },
        {
            "species_code": "68137",
            "common_name": "Ecrevisse américaine",
            "scientific_name": "Faxonius limosus",
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            "observation_count": 5,
            "individual_count": null,
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            "last_year": 2023
        },
        {
            "species_code": "2014",
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            "scientific_name": "Petromyzon marinus",
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            "last_year": 1998
        },
        {
            "species_code": "2122",
            "common_name": "Vandoise",
            "scientific_name": "Leuciscus leuciscus",
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            "observation_count": 4,
            "individual_count": null,
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            "last_year": 2000
        },
        {
            "species_code": "2102",
            "common_name": "Carassin commun",
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            "observation_count": 3,
            "individual_count": null,
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            "last_year": 2000
        },
        {
            "species_code": "2099",
            "common_name": "Brème bordelière",
            "scientific_name": "Blicca bjoerkna",
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            "observation_count": 3,
            "individual_count": null,
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            "last_year": 2001
        },
        {
            "species_code": "2117",
            "common_name": "Able de Heckel",
            "scientific_name": "Leucaspius delineatus",
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            "observation_count": 2,
            "individual_count": null,
            "first_year": 1997,
            "last_year": 1998
        },
        {
            "species_code": "20550",
            "common_name": "Carassin argenté",
            "scientific_name": "Carassius gibelio",
            "operation_count": 1,
            "observation_count": 2,
            "individual_count": null,
            "first_year": 2009,
            "last_year": 2009
        }
    ]
}