{
    "river": {
        "name": "Ruisseau d'Esche",
        "course_code": "A71-0200",
        "topage_code": null
    },
    "dataset": "species",
    "extracted_at": "2026-09-22T02:35:39+02:00",
    "source_note": "RivièreScope agrège des données publiques ; consultez /sources/ pour les producteurs et licences.",
    "data": [
        {
            "species_code": "31041",
            "common_name": "Chevaine",
            "scientific_name": "Leuciscus cephalus",
            "operation_count": 3,
            "observation_count": 250,
            "individual_count": null,
            "first_year": 2006,
            "last_year": 2011
        },
        {
            "species_code": "2133",
            "common_name": "Gardon",
            "scientific_name": "Rutilus rutilus",
            "operation_count": 3,
            "observation_count": 129,
            "individual_count": null,
            "first_year": 2006,
            "last_year": 2011
        },
        {
            "species_code": "2113",
            "common_name": "Goujon commun",
            "scientific_name": "Gobio gobio",
            "operation_count": 3,
            "observation_count": 102,
            "individual_count": null,
            "first_year": 2006,
            "last_year": 2011
        },
        {
            "species_code": "2080",
            "common_name": "Chabot",
            "scientific_name": "Cottus gobio",
            "operation_count": 3,
            "observation_count": 100,
            "individual_count": null,
            "first_year": 2006,
            "last_year": 2011
        },
        {
            "species_code": "2125",
            "common_name": "Vairon",
            "scientific_name": "Phoxinus phoxinus",
            "operation_count": 3,
            "observation_count": 69,
            "individual_count": null,
            "first_year": 2006,
            "last_year": 2011
        },
        {
            "species_code": "2071",
            "common_name": "Loche franche",
            "scientific_name": "Barbatula barbatula",
            "operation_count": 3,
            "observation_count": 53,
            "individual_count": null,
            "first_year": 2006,
            "last_year": 2011
        },
        {
            "species_code": "2088",
            "common_name": "Spirlin",
            "scientific_name": "Alburnoides bipunctatus",
            "operation_count": 3,
            "observation_count": 40,
            "individual_count": null,
            "first_year": 2006,
            "last_year": 2011
        },
        {
            "species_code": "2122",
            "common_name": "Vandoise",
            "scientific_name": "Leuciscus leuciscus",
            "operation_count": 3,
            "observation_count": 37,
            "individual_count": null,
            "first_year": 2006,
            "last_year": 2011
        },
        {
            "species_code": "2193",
            "common_name": "Perche",
            "scientific_name": "Perca fluviatilis",
            "operation_count": 1,
            "observation_count": 32,
            "individual_count": null,
            "first_year": 2011,
            "last_year": 2011
        },
        {
            "species_code": "2131",
            "common_name": "Bouvière",
            "scientific_name": "Rhodeus amarus",
            "operation_count": 2,
            "observation_count": 12,
            "individual_count": null,
            "first_year": 2006,
            "last_year": 2006
        },
        {
            "species_code": "2221",
            "common_name": "Truite de riviere",
            "scientific_name": "Salmo trutta",
            "operation_count": 2,
            "observation_count": 8,
            "individual_count": null,
            "first_year": 2006,
            "last_year": 2011
        },
        {
            "species_code": "2012",
            "common_name": "Lamproie de Planer",
            "scientific_name": "Lampetra planeri",
            "operation_count": 1,
            "observation_count": 2,
            "individual_count": null,
            "first_year": 2006,
            "last_year": 2006
        },
        {
            "species_code": "2167",
            "common_name": "Epinochette",
            "scientific_name": "Pungitius pungitius",
            "operation_count": 1,
            "observation_count": 2,
            "individual_count": null,
            "first_year": 2006,
            "last_year": 2006
        },
        {
            "species_code": "2086",
            "common_name": "Brème commune",
            "scientific_name": "Abramis brama",
            "operation_count": 1,
            "observation_count": 1,
            "individual_count": null,
            "first_year": 2006,
            "last_year": 2006
        },
        {
            "species_code": "2135",
            "common_name": "Rotengle",
            "scientific_name": "Scardinius erythrophthalmus",
            "operation_count": 1,
            "observation_count": 1,
            "individual_count": null,
            "first_year": 2006,
            "last_year": 2006
        },
        {
            "species_code": "2038",
            "common_name": "Anguille européenne",
            "scientific_name": "Anguilla anguilla",
            "operation_count": 1,
            "observation_count": 1,
            "individual_count": null,
            "first_year": 2011,
            "last_year": 2011
        },
        {
            "species_code": "2165",
            "common_name": "Epinoche",
            "scientific_name": "Gasterosteus aculeatus",
            "operation_count": 1,
            "observation_count": 1,
            "individual_count": null,
            "first_year": 2011,
            "last_year": 2011
        },
        {
            "species_code": "2099",
            "common_name": "Brème bordelière",
            "scientific_name": "Blicca bjoerkna",
            "operation_count": 1,
            "observation_count": 1,
            "individual_count": null,
            "first_year": 2006,
            "last_year": 2006
        }
    ]
}