{
    "river": {
        "name": "Le Caudeau",
        "course_code": "P52-0400",
        "topage_code": null
    },
    "dataset": "species",
    "extracted_at": "2026-11-07T15:11:24+01:00",
    "source_note": "RivièreScope agrège des données publiques ; consultez /sources/ pour les producteurs et licences.",
    "data": [
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            "observation_count": 816,
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            "last_year": 2024
        },
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            "species_code": "31041",
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            "observation_count": 811,
            "individual_count": null,
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            "last_year": 2026
        },
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            "species_code": "2125",
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            "observation_count": 762,
            "individual_count": null,
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            "last_year": 2022
        },
        {
            "species_code": "2113",
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            "scientific_name": "Gobio gobio",
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            "observation_count": 502,
            "individual_count": null,
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            "last_year": 2022
        },
        {
            "species_code": "2010",
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            "observation_count": 314,
            "individual_count": null,
            "first_year": 2018,
            "last_year": 2026
        },
        {
            "species_code": "2133",
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            "observation_count": 281,
            "individual_count": null,
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            "last_year": 2026
        },
        {
            "species_code": "2124",
            "common_name": "Vairon indéterminé (Phoxinus)",
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            "observation_count": 149,
            "individual_count": null,
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            "last_year": 2026
        },
        {
            "species_code": "2012",
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            "observation_count": 140,
            "individual_count": null,
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            "last_year": 2016
        },
        {
            "species_code": "2071",
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            "scientific_name": "Barbatula barbatula",
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            "observation_count": 79,
            "individual_count": null,
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            "last_year": 2024
        },
        {
            "species_code": "2038",
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            "observation_count": 69,
            "individual_count": null,
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            "last_year": 2014
        },
        {
            "species_code": "2050",
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            "observation_count": 68,
            "individual_count": null,
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            "last_year": 2026
        },
        {
            "species_code": "2079",
            "common_name": "Chabot indéterminé (Cottus)",
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            "observation_count": 68,
            "individual_count": null,
            "first_year": 2026,
            "last_year": 2026
        },
        {
            "species_code": "2112",
            "common_name": "Goujon indéterminé (Gobio)",
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            "observation_count": 63,
            "individual_count": null,
            "first_year": 2024,
            "last_year": 2026
        },
        {
            "species_code": "2096",
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            "observation_count": 31,
            "individual_count": null,
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            "last_year": 2014
        },
        {
            "species_code": "2129",
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            "observation_count": 17,
            "individual_count": null,
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            "last_year": 2026
        },
        {
            "species_code": "2028",
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            "scientific_name": "Procambarus clarkii",
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            "observation_count": 14,
            "individual_count": null,
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            "last_year": 2026
        },
        {
            "species_code": "2221",
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            "observation_count": 14,
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            "last_year": 2011
        },
        {
            "species_code": "2177",
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            "observation_count": 9,
            "individual_count": null,
            "first_year": 2024,
            "last_year": 2024
        },
        {
            "species_code": "2122",
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            "scientific_name": "Leuciscus leuciscus",
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            "individual_count": null,
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            "last_year": 2006
        },
        {
            "species_code": "5073",
            "common_name": "Loche indéterminée (Barbatula)",
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            "observation_count": 6,
            "individual_count": null,
            "first_year": 2026,
            "last_year": 2026
        },
        {
            "species_code": "2193",
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            "observation_count": 5,
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            "last_year": 2026
        },
        {
            "species_code": "2090",
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            "individual_count": null,
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            "last_year": 2006
        },
        {
            "species_code": "2110",
            "common_name": "Carpe commune",
            "scientific_name": "Cyprinus carpio",
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            "observation_count": 2,
            "individual_count": null,
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            "last_year": 2008
        },
        {
            "species_code": "2009",
            "common_name": "Lamproie indéterminée (famille Petromyzontidae)",
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            "observation_count": 2,
            "individual_count": null,
            "first_year": 2022,
            "last_year": 2022
        },
        {
            "species_code": "68137",
            "common_name": "Ecrevisse américaine",
            "scientific_name": "Faxonius limosus",
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            "observation_count": 2,
            "individual_count": null,
            "first_year": 2011,
            "last_year": 2024
        },
        {
            "species_code": "2135",
            "common_name": "Rotengle",
            "scientific_name": "Scardinius erythrophthalmus",
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            "observation_count": 2,
            "individual_count": null,
            "first_year": 2006,
            "last_year": 2008
        },
        {
            "species_code": "2137",
            "common_name": "Tanche",
            "scientific_name": "Tinca tinca",
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            "observation_count": 1,
            "individual_count": null,
            "first_year": 2010,
            "last_year": 2010
        },
        {
            "species_code": "2099",
            "common_name": "Brème bordelière",
            "scientific_name": "Blicca bjoerkna",
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            "observation_count": 1,
            "individual_count": null,
            "first_year": 2006,
            "last_year": 2006
        },
        {
            "species_code": "2109",
            "common_name": "Carpe miroir",
            "scientific_name": "Cyprinus carpio",
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            "observation_count": 1,
            "individual_count": null,
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            "last_year": 2014
        },
        {
            "species_code": "2053",
            "common_name": "Black bass à grande bouche",
            "scientific_name": "Micropterus salmoides",
            "operation_count": 1,
            "observation_count": 1,
            "individual_count": null,
            "first_year": 2018,
            "last_year": 2018
        },
        {
            "species_code": "2151",
            "common_name": "Brochet commun",
            "scientific_name": "Esox lucius",
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            "observation_count": 1,
            "individual_count": null,
            "first_year": 2000,
            "last_year": 2000
        }
    ]
}