Crise sismo-volcanique de Mayotte : réactivation et évolution en-direct d’une ride volcanique sur la pente est de l’île mise en lumière par la bathymétrie et la réflectivité multifaisceaux.

International audienc

High-resolution bathymetry of the Blanes Canyon (NW Mediterranean)

5th International Network for Submarine Canyon Investigation and Scientific Exchange International Symposium (INCISE), 14-18 June 2021Submarine canyons are complex geomorphological features that have been identified as potential hotspots of biodiversity, which has led to many canyons being mapped and studied at high resolution (tens of meters). In this work, we present the first complete very-high resolution mapping of the Blanes submarine canyon in the northwestern Mediterranean, based on a compilation of swath bathymetry data acquired during different cruises, spanning between 2011 and 2020. The integrated data set completes and extends previous bathymetric datasets on the canyon rim and adjacent continental shelf acquired during the ESPACE programme in 2004. The grid spacing of the compilation map varies from 4 m for the canyon rim and adjacent shelf, 15 m for the head and upper canyon region and 25 m for the middle and lower canyon region. The Blanes Canyon deeply incises the continental shelf, showing an orientation parallel to the coastline at its head. Down-canyon, it displays a meandering course with a strong structural control, showing rectilinear canyon portions characterized by a flat-floored axis and steep terrains (>50º) on both canyon flanks, with the presence of networks of gullies and subhorizontal layered walls. The high resolution map has allowed to identify potential areas along the submarine canyon flanks that might provide suitable environmental conditions for hosting benthic ecosystems, particularly cold-water corals (CWCs). These sites were recently explored during the ABRIC Spanish National Project using the hybrid remotely operated vehicle (H-ROV) Ariane and the inspection-class ROV Liropus to explore the benthic communities and to collect specimen samples, complementing the previous ROV dataset acquired during the ABIDES Project. Collected data allowed for the compilation of an inventory of the most representative and relevant benthic species and communities observed within the Blanes Canyon. This information will be shared with the Blanes fishermen’s guild in the framework of an outreach project funded by the Fisheries Local Action Groups (GALP), to provide awareness of the presence and abundance of such vulnerable marine ecosystems in the Blanes Canyon, and to expand the spatial information provided by the ROV surveys by adding the local fishermen knowledgPeer reviewe

TRAITEMENT SABASETI EM2040C

Rapport de traitement des données issues de l'EM2040C à bord du N/O Côte de la Manche lors de la mission scientifique SABASETI

Synthèse des missions RESISTE. Traitement SMF EM2040 et sonar latéral KLEIN 3000

Synthèse des traitements SMF EM2040 et sonar KLEIN 3000 des missions RESISTE à bord du N/O Thali

ABRIC 1 HROV Ariane. Traitement SMF EM2040

Traitement SMF EM2040 du HROV Ariane de la campagne BRIC1 à bord du N/O Sarmiento de Gamboa du 14 au 20/02/2020

RESISTE2-TH-2020. Traitement SMF EM2040 et SONAR LATERAL KLEIN 3000

Traitement SMF EM2040 et sonar KLEIN 3000 de la mission RESISTE2-TH-2020 à bord du N/O Thalia du 9 au 19 octobre 202

Synthèse Rade de Brest

Cette synthèse bathymétrique à haute résolution (2m) a pour vocation de constituer une couche de référence pour les travaux futurs (géologiques, hydrodynamiques, écologiques, infrastructures, modélisation). Elle va prochainement permettre d’établir la synthèse géologique à l’échelle de la Rade de Brest

Traitement CALADU SMF H-ROV EM2040 SMF COQUE ME70

Traitement SMF EM2040 de la campagne CALADU à bord du N/O L’Europe du 28/09/2019 au 09/10/2019 (leg SMF du 29/09 au 01/10/2019)

Les risques professionnels en aviculture

Les dangers auxquels sont confrontés les professionnels de la filière avicole constituent un véritable problème de santé publique. Souvent mésestimés, ils sont néanmoins responsables de nombreuses affections dont l'évolution peut être mortelle dans certains cas. Après une brève description des catégories de professionnels exposés, cette synthèse bibliographique vise à dénombrer ces dangers. Ils peuvent être liés à des postures contraignantes, à des agents infectieux, à des substances chimiques ou secondaires à l'exposition de gaz et de poussières. Toutefois, les différents intervenants ne sont pas soumis aux mêmes risques professionnels. Ainsi, l'évaluation du risque en France, basée sur l'analyse rétrospective des données de veille sanitaire disponibles, permet de dégager les mesures prophylactiques médicales et sanitaires susceptibles d'améliorer la santé des professionnels.TOULOUSE3-BU Santé-Centrale (315552105) / SudocTOULOUSE-EN Vétérinaire (315552301) / SudocSudocFranceF

Protective effect of a non-bacteriocinogenic Lactococcus piscium strain against Listeria monocytogenes in sterilised tropical cooked peeled shrimp

The protective activity of a non-bacteriocinogenic Lactococcus piscium CNCM I-4031 strain against Listeria monocytogenes was investigated in tropical cooked peeled shrimp stored at 8°C in modified atmosphere packaging (50% N2–50% CO2). When inoculated alone (L. piscium 107 CFU g-1 and L. monocytogenes 104 CFU g-1), protective culture and target strain grew very well on shrimp reaching a maximum cell number of 109 CFU g-1 after 7 and 14 days, respectively. In the presence of L. piscium, growth of L. monocytogenes was totally prevented after 3 days of storage. The count was 3.4 log CFU g-1 lower than in the control after 10 days and until the end of storage (31 days). Using the Seafood Spoilage and Safety Predictor Software (http://sssp.dtuaqua.dk), it was shown that pH decrease from 6.58 to 5.94 and lactic acid concentration of 89.65 mM measured in the co-inoculated batch did not fully explain the inhibition observed