Festival RESSAC, à l’année prochaine !

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The Ressac Festival, supported by UBO and coordinated by Christine Paillard, was the Arts and Sciences event of the beginning of the year. It took place in the week of 7-11 March 2022. See you next year!

This year’s theme was “Variations” and the programme was particularly exciting: researchers, artists or students proposed more than 35 events or original creations at the crossroads of arts and sciences scattered over the city of Brest and its region.

Find the full programme of these days here

The Lemar was present at the festival, through several events:

  • The project “Hydrofaunie: sound immersion in underwater life” (passages des Arpètes, aux Atliers des Capucins). This installation is the result of a collaboration between scientists Gildas Roudaut and Anne Lebourges-Dhaussy, students from the Image & Sound course (UBO) under the direction of Philippe Ollivier and Etienne Hendrickx, and students from ENSTA Bretagne. The sound creation Hydrofaunie transforms the images from acoustic sounders, called “echograms”, to offer a double auditory journey: the vertical dimension of the distribution of organisms in the water column, from the surface to the seabed, and the temporal dimension on day and night cycles. This creation is an invitation to listen to the invisible and the inaudible of the depths.
  • The photographic exhibition “Rhizaria, discovering silicified radiolarians” (BU du Bouguen). In the ocean, living beings use silicon, the second most abundant chemical element in the earth’s crust, to build their skeleton. Among them are the Rhizaria, microscopic single-celled marine organisms distributed throughout the world, living from the surface to the deepest depths. Relatively unknown, technological developments combined with the curiosity of scientists have led to new discoveries. The images on display, derived from innovative electron microscopy techniques, highlight the extraordinary forms of these fascinating microorganisms. They are the work of Valentin Foulon, Natalia Llopis Monferrer and Philippe Eliès (PIMM UBO) and are accompanied by an interactive poster developed by Sébastien Hervé.
  • During the closing night of the festival, LEMAR was present through two participations. A photographic exhibition of the Paddle Project, with images from Senegal, Brazil and Cape Verde by Sébastien Hervé. A musical conference by the SONARS Project, a collaboration of Laurent Chauvaud and François Joncour around acoustics in marine ecology and underwater sounds.

Sauvann Paulino thèse

A thesis at LEMAR? Apply until May 17!

If you are interested in doing a thesis in our laboratory, there are many thesis opportunities open for application.

Until May 17 you can apply to many thesis offers on the UBL website. Once on the UBL website choose “apply on a subject” and find the subjects of our UMR (UMR6539) in the 4 fields (SDU-Sciences of the Universe, SDV-Life Sciences, SHS-Human and Social Sciences and ISTI-Engineering Sciences and Techniques).

Here are the proposed topics:

 

SDU-Sciences of the Universe (7 topics)

  • MOMOPAR: Data-driven modeling and sampling to determine the origin of particles in deep particle traps (biological carbon pump)
  • Trajectory of a Socio-Ecosystem at the Land-Sea Interface: Case of the Rade de Brest from the 18th century to the present
  • Identifying the parameters modulating Arctic mixotrophy and the consequences on C, N and Si fluxes
  • Spatial, seasonal, and longer-term variations in phytoplankton communities in Brest roadstead in relation to environmental variations
  • Arsenic and holopelagic sargassum: study of environmental factors and physiological processes related to the accumulation/release of toxic forms of arsenic by pelagic brown macroalgae of the genus Sargassum in the Atlantic Ocean
  • Behavior and toxicity of nanoplastics along the land-sea continuum: Contribution of multidimensional characterization
  • Behavior of marine invertebrates exposed to marine traffic

SDV-Life Sciences (13 topics)

  • Effects of global change scenarios on n-3 long-chain polyunsaturated fatty acid accumulation and fish performance – An experimental approach
  • Ecological diversity within small pelagic fish communities in eastern rim upwelling systems and population dynamics
  • Functional role of Gabon’s coastal waters for two shark species Sphyrna lewini and Carcharhinus limbatus
  • Spatial, seasonal and longer-term variations in phytoplankton communities in Brest roadstead in relation to environmental variations
  • Impact of foundation species-related habitat complexity on community diversity and ecosystem functioning
  • Study of tropical marine bio-chemio-diversity for the emergence of new bio-inspired, eco-responsible antibacterial solutions in human and animal health
  • Studies of novel extremophilic peptidases: role in adaptation to deep environments and biotechnological interest.
  • Arsenic and holopelagic sargassum: study of environmental factors and physiological processes related to the accumulation/release of toxic forms of arsenic by pelagic brown macroalgae of the genus Sargassum from the Atlantic Ocean
  • Behavior and toxicity of nanoplastics along the land-sea continuum: Contribution of multidimensional characterization
  • Inventory and biotechnological valorization of proliferating Sargassum species from the Atlantic and Pacific coasts of Mexico with a comparison of Breton and Mexican populations of Sargassum muticum
  • Behavior of marine invertebrates exposed to marine traffic
  • Machine Learning approach for monitoring land use/occupancy changes in coastal wetlands
  • Identifying parameters modulating mixotrophy in the Arctic and consequences on C, N and Si fluxes

SHS-Humanities and Social Sciences (3 topics)

  • Machine Learning approach for monitoring land use/occupancy changes in coastal wetlands
  • Trajectory of a Socio-Ecosystem at the Land-Sea Interface: Case of the Rade de Brest from the 18th century to the present
  • Behavior of marine invertebrates exposed to maritime traffic

ISTI-Engineering Sciences and Techniques (3 topics)

  • MOMOPAR: Data-driven modeling and sampling to determine the origin of particles in deep particle traps (biological carbon pump)
  • Inventory and Biotechnological Enhancement of Proliferating Sargassum Species from the Atlantic and Pacific Coasts of Mexico with a Comparison of Breton and Mexican Populations of Sargassum muticum
  • Machine Learning approach for monitoring land use/occupancy changes in Coastal Wetlands

 

Conference by Fabrice Jaine (IMOS, Australia) on July 9th, 9:30

LEMAR welcomes Fabrice Jaine, from the Integrated Marine Observing System (IMOS), in Australia. Fabrice will present his work on mobile species tracking through acoustic telemetry:

Tracking movements and habitat use of marine animals: lessons learned from managing a national acoustic telemetry network in Australia

The conference will take place on Tuesday, July 9th, in amphi D