{
    "river": {
        "name": "Le Tolerme",
        "course_code": "P2030500",
        "topage_code": null
    },
    "dataset": "species",
    "extracted_at": "2026-09-22T02:00:38+02:00",
    "source_note": "RivièreScope agrège des données publiques ; consultez /sources/ pour les producteurs et licences.",
    "data": [
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            "observation_count": 2503,
            "individual_count": null,
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            "last_year": 2023
        },
        {
            "species_code": "2221",
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            "scientific_name": "Salmo trutta",
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            "observation_count": 1861,
            "individual_count": null,
            "first_year": 1994,
            "last_year": 2025
        },
        {
            "species_code": "873",
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            "scientific_name": "Pacifastacus leniusculus",
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            "observation_count": 1243,
            "individual_count": null,
            "first_year": 2019,
            "last_year": 2025
        },
        {
            "species_code": "68137",
            "common_name": "Ecrevisse américaine",
            "scientific_name": "Faxonius limosus",
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            "observation_count": 1126,
            "individual_count": null,
            "first_year": 1997,
            "last_year": 2021
        },
        {
            "species_code": "2113",
            "common_name": "Goujon commun",
            "scientific_name": "Gobio gobio",
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            "observation_count": 225,
            "individual_count": null,
            "first_year": 1999,
            "last_year": 2022
        },
        {
            "species_code": "2124",
            "common_name": "Vairon indéterminé (Phoxinus)",
            "scientific_name": "Phoxinus sp.",
            "operation_count": 6,
            "observation_count": 126,
            "individual_count": null,
            "first_year": 2013,
            "last_year": 2025
        },
        {
            "species_code": "2220",
            "common_name": "Saumon atlantique",
            "scientific_name": "Salmo salar",
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            "observation_count": 100,
            "individual_count": null,
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            "last_year": 2000
        },
        {
            "species_code": "23206",
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            "scientific_name": "Gobio occitaniae",
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            "observation_count": 55,
            "individual_count": null,
            "first_year": 2013,
            "last_year": 2015
        },
        {
            "species_code": "2133",
            "common_name": "Gardon",
            "scientific_name": "Rutilus rutilus",
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            "observation_count": 47,
            "individual_count": null,
            "first_year": 1996,
            "last_year": 2020
        },
        {
            "species_code": "2050",
            "common_name": "Perche soleil",
            "scientific_name": "Lepomis gibbosus",
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            "observation_count": 38,
            "individual_count": null,
            "first_year": 1994,
            "last_year": 2024
        },
        {
            "species_code": "31041",
            "common_name": "Chevaine",
            "scientific_name": "Leuciscus cephalus",
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            "observation_count": 26,
            "individual_count": null,
            "first_year": 2010,
            "last_year": 2023
        },
        {
            "species_code": "2193",
            "common_name": "Perche",
            "scientific_name": "Perca fluviatilis",
            "operation_count": 5,
            "observation_count": 23,
            "individual_count": null,
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            "last_year": 2016
        },
        {
            "species_code": "2053",
            "common_name": "Black bass à grande bouche",
            "scientific_name": "Micropterus salmoides",
            "operation_count": 4,
            "observation_count": 23,
            "individual_count": null,
            "first_year": 2018,
            "last_year": 2023
        },
        {
            "species_code": "2112",
            "common_name": "Goujon indéterminé (Gobio)",
            "scientific_name": "Gobio sp.",
            "operation_count": 4,
            "observation_count": 12,
            "individual_count": null,
            "first_year": 2013,
            "last_year": 2024
        },
        {
            "species_code": "2117",
            "common_name": "Able de Heckel",
            "scientific_name": "Leucaspius delineatus",
            "operation_count": 1,
            "observation_count": 5,
            "individual_count": null,
            "first_year": 2022,
            "last_year": 2022
        },
        {
            "species_code": "2135",
            "common_name": "Rotengle",
            "scientific_name": "Scardinius erythrophthalmus",
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            "observation_count": 2,
            "individual_count": null,
            "first_year": 2003,
            "last_year": 2010
        },
        {
            "species_code": "2195",
            "common_name": "Sandre",
            "scientific_name": "Sander lucioperca",
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            "observation_count": 1,
            "individual_count": null,
            "first_year": 2018,
            "last_year": 2018
        },
        {
            "species_code": "2084",
            "common_name": "Cyprinidé indéterminé (Cyprinidae)",
            "scientific_name": "Cyprinidae sp.",
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            "observation_count": 1,
            "individual_count": null,
            "first_year": 2018,
            "last_year": 2018
        },
        {
            "species_code": "2137",
            "common_name": "Tanche",
            "scientific_name": "Tinca tinca",
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            "observation_count": 1,
            "individual_count": null,
            "first_year": 2016,
            "last_year": 2016
        }
    ]
}