29 January

Gombessa 5: first scientific results in open access

Data available on the Medtrix platform

At the beginning of July 2019, Laurent Ballesta and his team started the great adventure of Gombessa 5: Deep Med. 31 saturation dives between 60 and 144 meters deep. 28 days to explore 10 underwater sites between Marseille and Monaco. During this expedition, several types of data were collected for the benefit of about ten scientific teams and their research projects.

These data and the first scientific results are now freely accessible on the Medtrix platform for monitoring the coastal waters and ecosystems of the Mediterranean: Medtrix.

L Ballesta Gombessa 5
One of the species closely observed by Laurent Ballesta and his team : le saint pierre, Zeus faber, Saint-Jean-Cap-Ferrat, -50 m © Laurent Ballesta / Photographs from the GOMBESSA 5 expedition carried by Andromède Océanologie

To access the database, nothing could be simpler

With just a few clicks you can create a free account and the contents are immediately available. The results of Gombessa 5 expedition are accessible from the “Scientific Expeditions” tab.

There are many different types of data. They are referenced by type of operations carried out and research subjects:

  • Benthic chambers (carbon content)
  • CTD probe (temperature, salinity)
  • Benthic macrofauna
  • Environmental DNA
  • Reference DNA
  • Laminaria
  • Gorgonians
  • Black Coral
  • 3D and sound
  • 3D Photogrammetry
  • Sediment chemistry
  • Nitrogenous elements in sediments

Clicking on the map and on the sites explored, the elements appear in the form of a sheet indicating the protocols carried out, the first analyses, background maps and illustrations.

For example, the first results of environmental DNA analyses appear with taxon identifications.

These steps are the first of the tedious work carried out by the scientists who are gradually clarifying the mysteries of the seabed.

Medtrix Platform, open datas from Gombessa 5 expedition
L. Ballesta Gombessa 5
Thibault Rauby's equipment during one of the Gombessa 5 dives © Laurent Ballesta / Photographs from the GOMBESSA 5 Expedition carried by Andromède Océanologie