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Regional network

Marine non-indigenous species (NIS)

ALIEN-Occitania

Born from the will of several partners, the network brings together a wide community of sea users — divers, recreational fishers, boaters, shore users — to report observations of marine non-indigenous species.

Coordination: CPIE Bassin de Thau — Sentinelles de la Mer Occitanie network
Record my observationsSee the species to report
ALIEN-Occitania network logo
  • 48
    non-indigenous species monitored
  • 2
    observation approaches
  • 9
    taxonomic groups
  • 7
    ALIEN networks in France
Printable PDFFor signed-in members

The ALIEN-Occitania species leaflet

All the species of the network in a printable document, to take diving or along the shore: photo, name, group, number of observations in the network and tick boxes.

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Free sign-up (in French)

Species to report

Two complementary approaches: on foot along the shore and the strandline, or underwater — scuba diving, snorkelling and freediving.

Showing 48 species (of 48)

How do I take part?

  1. I observe

    While scuba diving, snorkelling, freediving or on foot along the shore and the strandline.

  2. I take a photo

    A photo, even an imperfect one, lets the validator confirm the identification.

  3. I record my survey

    In my BioObs logbook: species, habitat, date and place.

  4. The data travels on

    Once validated, it feeds the Sentinelles de la Mer Occitanie network and national programmes.
Create my survey

A question about an identification? Write to us.

The spirit of the network

Better understanding potentially invasive species and controlling their spread: this is the goal BioObs works towards alongside its regional partners.

Read the definition on the OPEN participatory science portal (in French) (opens in a new tab)

Partners and coordination

The other ALIEN networks