{
    "river": {
        "name": "L'Arros",
        "course_code": "Q0--0250",
        "topage_code": null
    },
    "dataset": "species",
    "extracted_at": "2026-09-22T02:27:30+02:00",
    "source_note": "RivièreScope agrège des données publiques ; consultez /sources/ pour les producteurs et licences.",
    "data": [
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            "common_name": "Barbeau fluviatile",
            "scientific_name": "Barbus barbus",
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            "observation_count": 2787,
            "individual_count": null,
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            "last_year": 2025
        },
        {
            "species_code": "2090",
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            "observation_count": 2115,
            "individual_count": null,
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            "last_year": 2025
        },
        {
            "species_code": "31041",
            "common_name": "Chevaine",
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            "observation_count": 1625,
            "individual_count": null,
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            "last_year": 2025
        },
        {
            "species_code": "2113",
            "common_name": "Goujon commun",
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            "observation_count": 1242,
            "individual_count": null,
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            "last_year": 2022
        },
        {
            "species_code": "2125",
            "common_name": "Vairon",
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            "observation_count": 621,
            "individual_count": null,
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            "last_year": 2022
        },
        {
            "species_code": "2129",
            "common_name": "Pseudorasbora",
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            "observation_count": 581,
            "individual_count": null,
            "first_year": 2011,
            "last_year": 2025
        },
        {
            "species_code": "2133",
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            "observation_count": 571,
            "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": 475,
            "individual_count": null,
            "first_year": 1994,
            "last_year": 2025
        },
        {
            "species_code": "2038",
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            "observation_count": 381,
            "individual_count": null,
            "first_year": 1994,
            "last_year": 2025
        },
        {
            "species_code": "2112",
            "common_name": "Goujon indéterminé (Gobio)",
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            "observation_count": 272,
            "individual_count": null,
            "first_year": 2013,
            "last_year": 2025
        },
        {
            "species_code": "2124",
            "common_name": "Vairon indéterminé (Phoxinus)",
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            "observation_count": 226,
            "individual_count": null,
            "first_year": 2013,
            "last_year": 2025
        },
        {
            "species_code": "2122",
            "common_name": "Vandoise",
            "scientific_name": "Leuciscus leuciscus",
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            "observation_count": 163,
            "individual_count": null,
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            "last_year": 2019
        },
        {
            "species_code": "31337",
            "common_name": "Goujon de l’Adour",
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            "individual_count": null,
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            "last_year": 2016
        },
        {
            "species_code": "2086",
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            "observation_count": 58,
            "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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            "individual_count": null,
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            "last_year": 2021
        },
        {
            "species_code": "2028",
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            "individual_count": null,
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            "last_year": 2025
        },
        {
            "species_code": "2238",
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            "scientific_name": "Silurus glanis",
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            "observation_count": 23,
            "individual_count": null,
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            "last_year": 2025
        },
        {
            "species_code": "2123",
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            "observation_count": 23,
            "individual_count": null,
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            "last_year": 2025
        },
        {
            "species_code": "2099",
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            "last_year": 2025
        },
        {
            "species_code": "2110",
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            "individual_count": null,
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            "last_year": 2025
        },
        {
            "species_code": "2050",
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            "last_year": 2025
        },
        {
            "species_code": "2151",
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            "observation_count": 12,
            "individual_count": null,
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            "last_year": 2004
        },
        {
            "species_code": "2117",
            "common_name": "Able de Heckel",
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            "individual_count": null,
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            "last_year": 2010
        },
        {
            "species_code": "2014",
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            "observation_count": 8,
            "individual_count": null,
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            "last_year": 2004
        },
        {
            "species_code": "2193",
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            "observation_count": 8,
            "individual_count": null,
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            "last_year": 2018
        },
        {
            "species_code": "2208",
            "common_name": "Gambusie de l'ouest",
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            "observation_count": 7,
            "individual_count": null,
            "first_year": 2015,
            "last_year": 2024
        },
        {
            "species_code": "31135",
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            "scientific_name": "Parachondrostoma toxostoma",
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            "observation_count": 7,
            "individual_count": null,
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            "last_year": 2022
        },
        {
            "species_code": "2177",
            "common_name": "Poisson-chat",
            "scientific_name": "Ameiurus melas",
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            "observation_count": 6,
            "individual_count": null,
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            "last_year": 2018
        },
        {
            "species_code": "2543",
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            "observation_count": 6,
            "individual_count": null,
            "first_year": 2021,
            "last_year": 2025
        },
        {
            "species_code": "2137",
            "common_name": "Tanche",
            "scientific_name": "Tinca tinca",
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            "observation_count": 5,
            "individual_count": null,
            "first_year": 2000,
            "last_year": 2022
        },
        {
            "species_code": "2053",
            "common_name": "Black bass à grande bouche",
            "scientific_name": "Micropterus salmoides",
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            "observation_count": 5,
            "individual_count": null,
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            "last_year": 2007
        },
        {
            "species_code": "2135",
            "common_name": "Rotengle",
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            "observation_count": 5,
            "individual_count": null,
            "first_year": 2004,
            "last_year": 2022
        },
        {
            "species_code": "2195",
            "common_name": "Sandre",
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            "observation_count": 5,
            "individual_count": null,
            "first_year": 1995,
            "last_year": 2022
        },
        {
            "species_code": "2084",
            "common_name": "Cyprinidé indéterminé (Cyprinidae)",
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            "observation_count": 3,
            "individual_count": null,
            "first_year": 2025,
            "last_year": 2025
        },
        {
            "species_code": "2221",
            "common_name": "Truite de riviere",
            "scientific_name": "Salmo trutta",
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            "observation_count": 3,
            "individual_count": null,
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            "last_year": 2006
        },
        {
            "species_code": "2102",
            "common_name": "Carassin commun",
            "scientific_name": "Carassius carassius",
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            "observation_count": 3,
            "individual_count": null,
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            "last_year": 2011
        },
        {
            "species_code": "2216",
            "common_name": "Truite arc-en-ciel",
            "scientific_name": "Oncorhynchus mykiss",
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            "observation_count": 2,
            "individual_count": null,
            "first_year": 1995,
            "last_year": 1998
        },
        {
            "species_code": "20550",
            "common_name": "Carassin argenté",
            "scientific_name": "Carassius gibelio",
            "operation_count": 2,
            "observation_count": 2,
            "individual_count": null,
            "first_year": 2020,
            "last_year": 2024
        },
        {
            "species_code": "2109",
            "common_name": "Carpe miroir",
            "scientific_name": "Cyprinus carpio",
            "operation_count": 2,
            "observation_count": 2,
            "individual_count": null,
            "first_year": 1995,
            "last_year": 2007
        }
    ]
}