{
    "river": {
        "name": "L'Argent-Double",
        "course_code": "Y1430540",
        "topage_code": null
    },
    "dataset": "species",
    "extracted_at": "2026-09-22T02:00:06+02:00",
    "source_note": "RivièreScope agrège des données publiques ; consultez /sources/ pour les producteurs et licences.",
    "data": [
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            "observation_count": 672,
            "individual_count": null,
            "first_year": 2008,
            "last_year": 2022
        },
        {
            "species_code": "31041",
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            "scientific_name": "Leuciscus cephalus",
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            "observation_count": 494,
            "individual_count": null,
            "first_year": 2008,
            "last_year": 2026
        },
        {
            "species_code": "31135",
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            "observation_count": 479,
            "individual_count": null,
            "first_year": 2008,
            "last_year": 2024
        },
        {
            "species_code": "2125",
            "common_name": "Vairon",
            "scientific_name": "Phoxinus phoxinus",
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            "observation_count": 401,
            "individual_count": null,
            "first_year": 2008,
            "last_year": 2022
        },
        {
            "species_code": "2071",
            "common_name": "Loche franche",
            "scientific_name": "Barbatula barbatula",
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            "observation_count": 267,
            "individual_count": null,
            "first_year": 2008,
            "last_year": 2024
        },
        {
            "species_code": "2096",
            "common_name": "Barbeau fluviatile",
            "scientific_name": "Barbus barbus",
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            "observation_count": 175,
            "individual_count": null,
            "first_year": 2008,
            "last_year": 2024
        },
        {
            "species_code": "2112",
            "common_name": "Goujon indéterminé (Gobio)",
            "scientific_name": "Gobio sp.",
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            "observation_count": 140,
            "individual_count": null,
            "first_year": 2024,
            "last_year": 2026
        },
        {
            "species_code": "2123",
            "common_name": "Vandoise rostrée",
            "scientific_name": "Leuciscus burdigalensis",
            "operation_count": 4,
            "observation_count": 126,
            "individual_count": null,
            "first_year": 2010,
            "last_year": 2018
        },
        {
            "species_code": "2124",
            "common_name": "Vairon indéterminé (Phoxinus)",
            "scientific_name": "Phoxinus sp.",
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            "observation_count": 120,
            "individual_count": null,
            "first_year": 2024,
            "last_year": 2026
        },
        {
            "species_code": "2097",
            "common_name": "Barbeau méridional",
            "scientific_name": "Barbus meridionalis",
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            "observation_count": 104,
            "individual_count": null,
            "first_year": 2008,
            "last_year": 2026
        },
        {
            "species_code": "2122",
            "common_name": "Vandoise",
            "scientific_name": "Leuciscus leuciscus",
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            "observation_count": 90,
            "individual_count": null,
            "first_year": 2008,
            "last_year": 2016
        },
        {
            "species_code": "5073",
            "common_name": "Loche indéterminée (Barbatula)",
            "scientific_name": "Barbatula sp.",
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            "observation_count": 90,
            "individual_count": null,
            "first_year": 2026,
            "last_year": 2026
        },
        {
            "species_code": "2028",
            "common_name": "Ecrevisse de Louisiane",
            "scientific_name": "Procambarus clarkii",
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            "observation_count": 53,
            "individual_count": null,
            "first_year": 2016,
            "last_year": 2026
        },
        {
            "species_code": "2038",
            "common_name": "Anguille européenne",
            "scientific_name": "Anguilla anguilla",
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            "observation_count": 50,
            "individual_count": null,
            "first_year": 2008,
            "last_year": 2026
        },
        {
            "species_code": "2095",
            "common_name": "Barbeau indéterminé (Barbus)",
            "scientific_name": "Barbus sp.",
            "operation_count": 3,
            "observation_count": 35,
            "individual_count": null,
            "first_year": 2020,
            "last_year": 2024
        },
        {
            "species_code": "2088",
            "common_name": "Spirlin",
            "scientific_name": "Alburnoides bipunctatus",
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            "observation_count": 27,
            "individual_count": null,
            "first_year": 2014,
            "last_year": 2026
        },
        {
            "species_code": "2221",
            "common_name": "Truite de riviere",
            "scientific_name": "Salmo trutta",
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            "observation_count": 19,
            "individual_count": null,
            "first_year": 2010,
            "last_year": 2022
        },
        {
            "species_code": "23206",
            "common_name": "Goujon occitan",
            "scientific_name": "Gobio occitaniae",
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            "observation_count": 5,
            "individual_count": null,
            "first_year": 2026,
            "last_year": 2026
        },
        {
            "species_code": "2216",
            "common_name": "Truite arc-en-ciel",
            "scientific_name": "Oncorhynchus mykiss",
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            "observation_count": 3,
            "individual_count": null,
            "first_year": 2010,
            "last_year": 2026
        },
        {
            "species_code": "20597",
            "common_name": "Carassin doré",
            "scientific_name": "Carassius auratus",
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            "observation_count": 1,
            "individual_count": null,
            "first_year": 2024,
            "last_year": 2024
        }
    ]
}