{
    "river": {
        "name": "La Cesse",
        "course_code": "Y1600500",
        "topage_code": null
    },
    "dataset": "species",
    "extracted_at": "2026-09-22T01:53:38+02:00",
    "source_note": "RivièreScope agrège des données publiques ; consultez /sources/ pour les producteurs et licences.",
    "data": [
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            "common_name": "Chevaine",
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            "observation_count": 1027,
            "individual_count": null,
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            "last_year": 2024
        },
        {
            "species_code": "2113",
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            "scientific_name": "Gobio gobio",
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            "observation_count": 547,
            "individual_count": null,
            "first_year": 2009,
            "last_year": 2022
        },
        {
            "species_code": "2096",
            "common_name": "Barbeau fluviatile",
            "scientific_name": "Barbus barbus",
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            "observation_count": 260,
            "individual_count": null,
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            "last_year": 2024
        },
        {
            "species_code": "2038",
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            "scientific_name": "Anguilla anguilla",
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            "observation_count": 230,
            "individual_count": null,
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            "last_year": 2024
        },
        {
            "species_code": "2088",
            "common_name": "Spirlin",
            "scientific_name": "Alburnoides bipunctatus",
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            "observation_count": 202,
            "individual_count": null,
            "first_year": 2014,
            "last_year": 2024
        },
        {
            "species_code": "2125",
            "common_name": "Vairon",
            "scientific_name": "Phoxinus phoxinus",
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            "observation_count": 178,
            "individual_count": null,
            "first_year": 2009,
            "last_year": 2022
        },
        {
            "species_code": "2090",
            "common_name": "Ablette",
            "scientific_name": "Alburnus alburnus",
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            "observation_count": 151,
            "individual_count": null,
            "first_year": 2009,
            "last_year": 2024
        },
        {
            "species_code": "2129",
            "common_name": "Pseudorasbora",
            "scientific_name": "Pseudorasbora parva",
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            "observation_count": 126,
            "individual_count": null,
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            "last_year": 2024
        },
        {
            "species_code": "2133",
            "common_name": "Gardon",
            "scientific_name": "Rutilus rutilus",
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            "observation_count": 107,
            "individual_count": null,
            "first_year": 2009,
            "last_year": 2018
        },
        {
            "species_code": "31135",
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            "observation_count": 69,
            "individual_count": null,
            "first_year": 2009,
            "last_year": 2022
        },
        {
            "species_code": "2112",
            "common_name": "Goujon indéterminé (Gobio)",
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            "observation_count": 69,
            "individual_count": null,
            "first_year": 2024,
            "last_year": 2024
        },
        {
            "species_code": "2071",
            "common_name": "Loche franche",
            "scientific_name": "Barbatula barbatula",
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            "observation_count": 60,
            "individual_count": null,
            "first_year": 2009,
            "last_year": 2024
        },
        {
            "species_code": "2110",
            "common_name": "Carpe commune",
            "scientific_name": "Cyprinus carpio",
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            "observation_count": 60,
            "individual_count": null,
            "first_year": 2011,
            "last_year": 2024
        },
        {
            "species_code": "2124",
            "common_name": "Vairon indéterminé (Phoxinus)",
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            "observation_count": 35,
            "individual_count": null,
            "first_year": 2024,
            "last_year": 2024
        },
        {
            "species_code": "2165",
            "common_name": "Epinoche",
            "scientific_name": "Gasterosteus aculeatus",
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            "observation_count": 15,
            "individual_count": null,
            "first_year": 2011,
            "last_year": 2024
        },
        {
            "species_code": "2028",
            "common_name": "Ecrevisse de Louisiane",
            "scientific_name": "Procambarus clarkii",
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            "observation_count": 10,
            "individual_count": null,
            "first_year": 2024,
            "last_year": 2024
        },
        {
            "species_code": "2122",
            "common_name": "Vandoise",
            "scientific_name": "Leuciscus leuciscus",
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            "individual_count": null,
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            "last_year": 2009
        },
        {
            "species_code": "2193",
            "common_name": "Perche",
            "scientific_name": "Perca fluviatilis",
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            "observation_count": 9,
            "individual_count": null,
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            "last_year": 2024
        },
        {
            "species_code": "2208",
            "common_name": "Gambusie de l'ouest",
            "scientific_name": "Gambusia affinis",
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            "observation_count": 6,
            "individual_count": null,
            "first_year": 2024,
            "last_year": 2024
        },
        {
            "species_code": "2195",
            "common_name": "Sandre",
            "scientific_name": "Sander lucioperca",
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            "observation_count": 3,
            "individual_count": null,
            "first_year": 2018,
            "last_year": 2018
        },
        {
            "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": 2024
        },
        {
            "species_code": "68137",
            "common_name": "Ecrevisse américaine",
            "scientific_name": "Faxonius limosus",
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            "observation_count": 2,
            "individual_count": null,
            "first_year": 2022,
            "last_year": 2024
        },
        {
            "species_code": "2137",
            "common_name": "Tanche",
            "scientific_name": "Tinca tinca",
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            "observation_count": 2,
            "individual_count": null,
            "first_year": 2014,
            "last_year": 2024
        },
        {
            "species_code": "2135",
            "common_name": "Rotengle",
            "scientific_name": "Scardinius erythrophthalmus",
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            "observation_count": 2,
            "individual_count": null,
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            "last_year": 2011
        },
        {
            "species_code": "2180",
            "common_name": "Mulet à grosses levres",
            "scientific_name": "Chelon labrosus",
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            "observation_count": 1,
            "individual_count": null,
            "first_year": 2018,
            "last_year": 2018
        },
        {
            "species_code": "2131",
            "common_name": "Bouvière",
            "scientific_name": "Rhodeus amarus",
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            "observation_count": 1,
            "individual_count": null,
            "first_year": 2018,
            "last_year": 2018
        },
        {
            "species_code": "2050",
            "common_name": "Perche soleil",
            "scientific_name": "Lepomis gibbosus",
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            "observation_count": 1,
            "individual_count": null,
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            "last_year": 2009
        },
        {
            "species_code": "2543",
            "common_name": "Epirine lippue",
            "scientific_name": "Pachychilon pictum",
            "operation_count": 1,
            "observation_count": 1,
            "individual_count": null,
            "first_year": 2018,
            "last_year": 2018
        }
    ]
}