{
    "river": {
        "name": "L'Herbasse",
        "course_code": "W35-0400",
        "topage_code": null
    },
    "dataset": "species",
    "extracted_at": "2026-11-09T12:17:37+01:00",
    "source_note": "RivièreScope agrège des données publiques ; consultez /sources/ pour les producteurs et licences.",
    "data": [
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            "common_name": "Vairon",
            "scientific_name": "Phoxinus phoxinus",
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            "observation_count": 1251,
            "individual_count": null,
            "first_year": 2004,
            "last_year": 2026
        },
        {
            "species_code": "2221",
            "common_name": "Truite de riviere",
            "scientific_name": "Salmo trutta",
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            "observation_count": 1223,
            "individual_count": null,
            "first_year": 2004,
            "last_year": 2026
        },
        {
            "species_code": "2096",
            "common_name": "Barbeau fluviatile",
            "scientific_name": "Barbus barbus",
            "operation_count": 10,
            "observation_count": 1081,
            "individual_count": null,
            "first_year": 2008,
            "last_year": 2026
        },
        {
            "species_code": "25609",
            "common_name": "Blageon",
            "scientific_name": "Telestes souffia",
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            "observation_count": 822,
            "individual_count": null,
            "first_year": 2008,
            "last_year": 2026
        },
        {
            "species_code": "31041",
            "common_name": "Chevaine",
            "scientific_name": "Leuciscus cephalus",
            "operation_count": 14,
            "observation_count": 799,
            "individual_count": null,
            "first_year": 2008,
            "last_year": 2026
        },
        {
            "species_code": "2071",
            "common_name": "Loche franche",
            "scientific_name": "Barbatula barbatula",
            "operation_count": 25,
            "observation_count": 673,
            "individual_count": null,
            "first_year": 2004,
            "last_year": 2025
        },
        {
            "species_code": "2088",
            "common_name": "Spirlin",
            "scientific_name": "Alburnoides bipunctatus",
            "operation_count": 10,
            "observation_count": 361,
            "individual_count": null,
            "first_year": 2008,
            "last_year": 2026
        },
        {
            "species_code": "2113",
            "common_name": "Goujon commun",
            "scientific_name": "Gobio gobio",
            "operation_count": 12,
            "observation_count": 315,
            "individual_count": null,
            "first_year": 2008,
            "last_year": 2026
        },
        {
            "species_code": "2012",
            "common_name": "Lamproie de Planer",
            "scientific_name": "Lampetra planeri",
            "operation_count": 16,
            "observation_count": 198,
            "individual_count": null,
            "first_year": 2005,
            "last_year": 2026
        },
        {
            "species_code": "2124",
            "common_name": "Vairon indéterminé (Phoxinus)",
            "scientific_name": "Phoxinus sp.",
            "operation_count": 1,
            "observation_count": 90,
            "individual_count": null,
            "first_year": 2025,
            "last_year": 2025
        },
        {
            "species_code": "5073",
            "common_name": "Loche indéterminée (Barbatula)",
            "scientific_name": "Barbatula sp.",
            "operation_count": 1,
            "observation_count": 35,
            "individual_count": null,
            "first_year": 2026,
            "last_year": 2026
        },
        {
            "species_code": "2216",
            "common_name": "Truite arc-en-ciel",
            "scientific_name": "Oncorhynchus mykiss",
            "operation_count": 1,
            "observation_count": 21,
            "individual_count": null,
            "first_year": 2026,
            "last_year": 2026
        },
        {
            "species_code": "2193",
            "common_name": "Perche",
            "scientific_name": "Perca fluviatilis",
            "operation_count": 4,
            "observation_count": 7,
            "individual_count": null,
            "first_year": 2008,
            "last_year": 2026
        },
        {
            "species_code": "2133",
            "common_name": "Gardon",
            "scientific_name": "Rutilus rutilus",
            "operation_count": 3,
            "observation_count": 5,
            "individual_count": null,
            "first_year": 2014,
            "last_year": 2020
        },
        {
            "species_code": "68137",
            "common_name": "Ecrevisse américaine",
            "scientific_name": "Faxonius limosus",
            "operation_count": 3,
            "observation_count": 4,
            "individual_count": null,
            "first_year": 2008,
            "last_year": 2014
        },
        {
            "species_code": "2151",
            "common_name": "Brochet commun",
            "scientific_name": "Esox lucius",
            "operation_count": 2,
            "observation_count": 3,
            "individual_count": null,
            "first_year": 2013,
            "last_year": 2014
        },
        {
            "species_code": "2177",
            "common_name": "Poisson-chat",
            "scientific_name": "Ameiurus melas",
            "operation_count": 2,
            "observation_count": 3,
            "individual_count": null,
            "first_year": 2016,
            "last_year": 2024
        },
        {
            "species_code": "20550",
            "common_name": "Carassin argenté",
            "scientific_name": "Carassius gibelio",
            "operation_count": 3,
            "observation_count": 3,
            "individual_count": null,
            "first_year": 2012,
            "last_year": 2026
        },
        {
            "species_code": "2129",
            "common_name": "Pseudorasbora",
            "scientific_name": "Pseudorasbora parva",
            "operation_count": 2,
            "observation_count": 3,
            "individual_count": null,
            "first_year": 2010,
            "last_year": 2018
        },
        {
            "species_code": "2050",
            "common_name": "Perche soleil",
            "scientific_name": "Lepomis gibbosus",
            "operation_count": 2,
            "observation_count": 3,
            "individual_count": null,
            "first_year": 2019,
            "last_year": 2024
        },
        {
            "species_code": "2135",
            "common_name": "Rotengle",
            "scientific_name": "Scardinius erythrophthalmus",
            "operation_count": 1,
            "observation_count": 2,
            "individual_count": null,
            "first_year": 2014,
            "last_year": 2014
        },
        {
            "species_code": "2131",
            "common_name": "Bouvière",
            "scientific_name": "Rhodeus amarus",
            "operation_count": 1,
            "observation_count": 1,
            "individual_count": null,
            "first_year": 2014,
            "last_year": 2014
        }
    ]
}