{
    "river": {
        "name": "La Nauze",
        "course_code": "P25-0400",
        "topage_code": null
    },
    "dataset": "species",
    "extracted_at": "2026-09-22T02:01:03+02:00",
    "source_note": "RivièreScope agrège des données publiques ; consultez /sources/ pour les producteurs et licences.",
    "data": [
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            "species_code": "2125",
            "common_name": "Vairon",
            "scientific_name": "Phoxinus phoxinus",
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            "observation_count": 429,
            "individual_count": null,
            "first_year": 2008,
            "last_year": 2022
        },
        {
            "species_code": "2113",
            "common_name": "Goujon commun",
            "scientific_name": "Gobio gobio",
            "operation_count": 8,
            "observation_count": 304,
            "individual_count": null,
            "first_year": 2008,
            "last_year": 2022
        },
        {
            "species_code": "2071",
            "common_name": "Loche franche",
            "scientific_name": "Barbatula barbatula",
            "operation_count": 9,
            "observation_count": 209,
            "individual_count": null,
            "first_year": 2008,
            "last_year": 2024
        },
        {
            "species_code": "31041",
            "common_name": "Chevaine",
            "scientific_name": "Leuciscus cephalus",
            "operation_count": 9,
            "observation_count": 186,
            "individual_count": null,
            "first_year": 2008,
            "last_year": 2024
        },
        {
            "species_code": "2221",
            "common_name": "Truite de riviere",
            "scientific_name": "Salmo trutta",
            "operation_count": 9,
            "observation_count": 135,
            "individual_count": null,
            "first_year": 2008,
            "last_year": 2024
        },
        {
            "species_code": "2010",
            "common_name": "Lamproie indéterminée (genre Lampetra)",
            "scientific_name": "Lampetra spp",
            "operation_count": 4,
            "observation_count": 95,
            "individual_count": null,
            "first_year": 2018,
            "last_year": 2024
        },
        {
            "species_code": "2012",
            "common_name": "Lamproie de Planer",
            "scientific_name": "Lampetra planeri",
            "operation_count": 5,
            "observation_count": 59,
            "individual_count": null,
            "first_year": 2008,
            "last_year": 2016
        },
        {
            "species_code": "2080",
            "common_name": "Chabot",
            "scientific_name": "Cottus gobio",
            "operation_count": 4,
            "observation_count": 55,
            "individual_count": null,
            "first_year": 2018,
            "last_year": 2024
        },
        {
            "species_code": "2038",
            "common_name": "Anguille européenne",
            "scientific_name": "Anguilla anguilla",
            "operation_count": 9,
            "observation_count": 36,
            "individual_count": null,
            "first_year": 2008,
            "last_year": 2024
        },
        {
            "species_code": "2133",
            "common_name": "Gardon",
            "scientific_name": "Rutilus rutilus",
            "operation_count": 6,
            "observation_count": 35,
            "individual_count": null,
            "first_year": 2008,
            "last_year": 2018
        },
        {
            "species_code": "2028",
            "common_name": "Ecrevisse de Louisiane",
            "scientific_name": "Procambarus clarkii",
            "operation_count": 7,
            "observation_count": 26,
            "individual_count": null,
            "first_year": 2008,
            "last_year": 2024
        },
        {
            "species_code": "2084",
            "common_name": "Cyprinidé indéterminé (Cyprinidae)",
            "scientific_name": "Cyprinidae sp.",
            "operation_count": 3,
            "observation_count": 24,
            "individual_count": null,
            "first_year": 2020,
            "last_year": 2024
        },
        {
            "species_code": "2112",
            "common_name": "Goujon indéterminé (Gobio)",
            "scientific_name": "Gobio sp.",
            "operation_count": 1,
            "observation_count": 21,
            "individual_count": null,
            "first_year": 2024,
            "last_year": 2024
        },
        {
            "species_code": "2124",
            "common_name": "Vairon indéterminé (Phoxinus)",
            "scientific_name": "Phoxinus sp.",
            "operation_count": 1,
            "observation_count": 16,
            "individual_count": null,
            "first_year": 2024,
            "last_year": 2024
        },
        {
            "species_code": "2102",
            "common_name": "Carassin commun",
            "scientific_name": "Carassius carassius",
            "operation_count": 1,
            "observation_count": 13,
            "individual_count": null,
            "first_year": 2012,
            "last_year": 2012
        },
        {
            "species_code": "2216",
            "common_name": "Truite arc-en-ciel",
            "scientific_name": "Oncorhynchus mykiss",
            "operation_count": 3,
            "observation_count": 5,
            "individual_count": null,
            "first_year": 2014,
            "last_year": 2018
        },
        {
            "species_code": "2110",
            "common_name": "Carpe commune",
            "scientific_name": "Cyprinus carpio",
            "operation_count": 1,
            "observation_count": 4,
            "individual_count": null,
            "first_year": 2012,
            "last_year": 2012
        },
        {
            "species_code": "2135",
            "common_name": "Rotengle",
            "scientific_name": "Scardinius erythrophthalmus",
            "operation_count": 1,
            "observation_count": 3,
            "individual_count": null,
            "first_year": 2008,
            "last_year": 2008
        },
        {
            "species_code": "2096",
            "common_name": "Barbeau fluviatile",
            "scientific_name": "Barbus barbus",
            "operation_count": 2,
            "observation_count": 3,
            "individual_count": null,
            "first_year": 2014,
            "last_year": 2016
        },
        {
            "species_code": "873",
            "common_name": "Ecrevisse signal",
            "scientific_name": "Pacifastacus leniusculus",
            "operation_count": 3,
            "observation_count": 3,
            "individual_count": null,
            "first_year": 2010,
            "last_year": 2022
        },
        {
            "species_code": "2050",
            "common_name": "Perche soleil",
            "scientific_name": "Lepomis gibbosus",
            "operation_count": 2,
            "observation_count": 2,
            "individual_count": null,
            "first_year": 2010,
            "last_year": 2022
        },
        {
            "species_code": "2122",
            "common_name": "Vandoise",
            "scientific_name": "Leuciscus leuciscus",
            "operation_count": 1,
            "observation_count": 2,
            "individual_count": null,
            "first_year": 2008,
            "last_year": 2008
        },
        {
            "species_code": "2123",
            "common_name": "Vandoise rostrée",
            "scientific_name": "Leuciscus burdigalensis",
            "operation_count": 1,
            "observation_count": 1,
            "individual_count": null,
            "first_year": 2010,
            "last_year": 2010
        },
        {
            "species_code": "2109",
            "common_name": "Carpe miroir",
            "scientific_name": "Cyprinus carpio",
            "operation_count": 1,
            "observation_count": 1,
            "individual_count": null,
            "first_year": 2012,
            "last_year": 2012
        }
    ]
}