Eel passability objective for marshes under the Loire Estuary SAGEObjectif de franchissabilité des marais par l'anguille du SAGE Estuaire de la Loire

Objectif de franchissabilité des marais par l'anguille du SAGE Estuaire de la LoireEel passability objective for marshes under the Loire Estuary SAGE

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This dataset presents the objective for eel accessibility to marshes defined under the Loire Estuary SAGE (Schéma d'Aménagement et de Gestion des Eaux, a French local water management plan). Since standard staging and fragmentation rates are not suited to assessing how structures in marshland affect ecological continuity, the SAGE established a dedicated indicator measuring how accessible marsh areas are to eels. The data supports monitoring and management of water infrastructure impacts on eel migration within the Loire estuary catchment, informing local water authorities and stakeholders involved in ecological continuity planning.Objectif d’accessibilité des marais par l’Anguille du SAGE* Estuaire de la Loire Les taux d’étagement et de fractionnement n’étant pas adaptés à l’évaluation de l’impact des ouvrages en marais sur la continuité écologique, le SAGE a défini un indicateur d’accessibilité des marais par l’Anguille d...

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Data schema (7 fields)

Filterable via the API (5)

uhc_id2nom_maraisind_marobj_acces2obj_synth

Click a field to see example values.

Field	Type	Description
geo_point_2dGeo Point	geo_point_2d	Geographic centroid coordinates of the marsh area.Geographic centroid coordinates of the marsh area.
geo_shapeShape	geo_shape	Geometric boundary shape of the marsh area.Geometric boundary shape of the marsh area.
uhc_id2Identifiant unité hydraulique cohérente	text	Identifier of the coherent hydraulic unit.Identifier of the coherent hydraulic unit.
nom_maraisnom du marais	text	Name of the marsh.Name of the marsh.
ind_marFranchissabilité par l'Anguille	text	Current eel passability rating of the marsh.Current eel passability rating of the marsh.
obj_acces2Objectif d'accessibilité détail	text	Detailed accessibility objective for eel passage.Detailed accessibility objective for eel passage.
obj_synthobjectif synthèse	text	Summary accessibility objective used for the SAGE map.champs utilisé pour la carte du SAGE

Schema captured from opendatasoft 3 days ago.

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Sample data (5 records)

These rows are ODbL-1.0: share-alike. Reusing them obliges you to license any derived database on the same terms.

Record 1ind_mar: bonne · uhc_id2: UHC2_109

{
  "ind_mar": "bonne",
  "uhc_id2": "UHC2_109",
  "geo_shape": "[large value omitted]",
  "obj_synth": "maintenir une bonne accessibilité",
  "nom_marais": "Marais estuariens du Sud Loire secteur Acheneau tenu",
  "obj_acces2": "maintenir l'accessibilité bonne",
  "geo_point_2d": {
    "lat": 47.131443252112845,
    "lon": -1.7084814108821087
  }
}

Record 2ind_mar: bonne · uhc_id2: UHC2_00290

{
  "ind_mar": "bonne",
  "uhc_id2": "UHC2_00290",
  "geo_shape": "[large value omitted]",
  "obj_synth": "maintenir une bonne accessibilité",
  "nom_marais": "Marais estuariens du Sud Loire secteur Acheneau tenu",
  "obj_acces2": "maintenir l'accessibilité bonne",
  "geo_point_2d": {
    "lat": 47.2384300453745,
    "lon": -1.8721210982416767
  }
}

Record 3ind_mar: bonne · uhc_id2: UHC2_00300

{
  "ind_mar": "bonne",
  "uhc_id2": "UHC2_00300",
  "geo_shape": "[large value omitted]",
  "obj_synth": "maintenir une bonne accessibilité",
  "nom_marais": "marais estuairiens du sud Loire aval",
  "obj_acces2": "maintenir l'accessibilité bonne",
  "geo_point_2d": {
    "lat": 47.28345905052262,
    "lon": -2.052337763018675
  }
}

Record 4ind_mar: difficille · uhc_id2: UHC2_157

{
  "ind_mar": "difficille",
  "uhc_id2": "UHC2_157",
  "geo_shape": "[large value omitted]",
  "obj_synth": "atteindre une bonne accessibilité",
  "nom_marais": "Marais de Goulaine",
  "obj_acces2": "atteindre l'accessibilité bonne (cours d'eau classé liste 2) - priorité 1",
  "geo_point_2d": {
    "lat": 47.21197903541118,
    "lon": -1.403185295758908
  }
}

Record 5ind_mar: difficille · uhc_id2: UHC2_027

{
  "ind_mar": "difficille",
  "uhc_id2": "UHC2_027",
  "geo_shape": "[large value omitted]",
  "obj_synth": "atteindre une accessibilité moyenne",
  "nom_marais": "marais de St Etienne de Montluc et de Couëron",
  "obj_acces2": "atteindre l'accessibilité moyenne (cours d'eau non classé) - priorité 2",
  "geo_point_2d": {
    "lat": 47.242862040250245,
    "lon": -1.7965526707417532
  }
}

Live sample captured at profiling time — values may have changed upstream.

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Base URL: https://data.paysdelaloire.fr/api/explore/v2.1/catalog/datasets/200055127_franchissabilite_marais_anguille_objectif_sageel_2024

License

Open Data Commons Open Database License 1.0Open

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Query examples

curl -s 'https://data.paysdelaloire.fr/api/explore/v2.1/catalog/datasets/200055127_franchissabilite_marais_anguille_objectif_sageel_2024/records?limit=20' -H 'Accept: application/json'

First 20 records of the dataset as JSON.

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5 000 req/day

per ipmeasured

observed 3 days ago

Dataset

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Records

Last upstream update

1 year ago

2025-09-12

License

No license declared upstream.

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