{
    "river": {
        "name": "La Nied",
        "course_code": "A9--0120",
        "topage_code": null
    },
    "dataset": "species",
    "extracted_at": "2026-09-22T02:26:29+02:00",
    "source_note": "RivièreScope agrège des données publiques ; consultez /sources/ pour les producteurs et licences.",
    "data": [
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            "observation_count": 1030,
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            "last_year": 2025
        },
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            "observation_count": 652,
            "individual_count": null,
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            "last_year": 2025
        },
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            "species_code": "2125",
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            "observation_count": 558,
            "individual_count": null,
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            "last_year": 2025
        },
        {
            "species_code": "2122",
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            "scientific_name": "Leuciscus leuciscus",
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            "observation_count": 518,
            "individual_count": null,
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            "last_year": 2025
        },
        {
            "species_code": "2193",
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            "observation_count": 392,
            "individual_count": null,
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            "last_year": 2025
        },
        {
            "species_code": "2113",
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            "observation_count": 361,
            "individual_count": null,
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            "last_year": 2023
        },
        {
            "species_code": "2090",
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            "individual_count": null,
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            "last_year": 2025
        },
        {
            "species_code": "2067",
            "common_name": "Loche de rivière",
            "scientific_name": "Cobitis taenia",
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            "observation_count": 193,
            "individual_count": null,
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            "last_year": 2025
        },
        {
            "species_code": "2080",
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            "scientific_name": "Cottus gobio",
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            "observation_count": 173,
            "individual_count": null,
            "first_year": 1986,
            "last_year": 2025
        },
        {
            "species_code": "2131",
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            "observation_count": 162,
            "individual_count": null,
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            "last_year": 2025
        },
        {
            "species_code": "29117",
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            "observation_count": 127,
            "individual_count": null,
            "first_year": 2021,
            "last_year": 2025
        },
        {
            "species_code": "2165",
            "common_name": "Epinoche",
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            "observation_count": 89,
            "individual_count": null,
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            "last_year": 2025
        },
        {
            "species_code": "2088",
            "common_name": "Spirlin",
            "scientific_name": "Alburnoides bipunctatus",
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            "observation_count": 82,
            "individual_count": null,
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            "last_year": 2025
        },
        {
            "species_code": "2151",
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            "observation_count": 77,
            "individual_count": null,
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            "last_year": 2025
        },
        {
            "species_code": "2071",
            "common_name": "Loche franche",
            "scientific_name": "Barbatula barbatula",
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            "observation_count": 72,
            "individual_count": null,
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            "last_year": 2023
        },
        {
            "species_code": "2096",
            "common_name": "Barbeau fluviatile",
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            "observation_count": 68,
            "individual_count": null,
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            "last_year": 2025
        },
        {
            "species_code": "2137",
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            "observation_count": 63,
            "individual_count": null,
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            "last_year": 2019
        },
        {
            "species_code": "2038",
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            "observation_count": 62,
            "individual_count": null,
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            "last_year": 2025
        },
        {
            "species_code": "2104",
            "common_name": "Hotu",
            "scientific_name": "Chondrostoma nasus",
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            "observation_count": 58,
            "individual_count": null,
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            "last_year": 2025
        },
        {
            "species_code": "2135",
            "common_name": "Rotengle",
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            "observation_count": 44,
            "individual_count": null,
            "first_year": 1986,
            "last_year": 2021
        },
        {
            "species_code": "2238",
            "common_name": "Silure glane",
            "scientific_name": "Silurus glanis",
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            "observation_count": 32,
            "individual_count": null,
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            "last_year": 2025
        },
        {
            "species_code": "2191",
            "common_name": "Grémille",
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            "observation_count": 17,
            "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": 16,
            "individual_count": null,
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            "last_year": 2025
        },
        {
            "species_code": "2086",
            "common_name": "Brème commune",
            "scientific_name": "Abramis brama",
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            "observation_count": 3,
            "individual_count": null,
            "first_year": 1996,
            "last_year": 2025
        },
        {
            "species_code": "2110",
            "common_name": "Carpe commune",
            "scientific_name": "Cyprinus carpio",
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            "observation_count": 2,
            "individual_count": null,
            "first_year": 2003,
            "last_year": 2003
        },
        {
            "species_code": "2129",
            "common_name": "Pseudorasbora",
            "scientific_name": "Pseudorasbora parva",
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            "observation_count": 2,
            "individual_count": null,
            "first_year": 2019,
            "last_year": 2025
        },
        {
            "species_code": "2099",
            "common_name": "Brème bordelière",
            "scientific_name": "Blicca bjoerkna",
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            "observation_count": 1,
            "individual_count": null,
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            "last_year": 1993
        },
        {
            "species_code": "2117",
            "common_name": "Able de Heckel",
            "scientific_name": "Leucaspius delineatus",
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            "observation_count": 1,
            "individual_count": null,
            "first_year": 2013,
            "last_year": 2013
        }
    ]
}