A5073384776- Marine Biology and Ecology Research
- Marine Ecology and Invasive Species
- Marine Sponges and Natural Products
- Coral and Marine Ecosystems Studies
- Subterranean biodiversity and taxonomy
- Aquatic Invertebrate Ecology and Behavior
- Urologic and reproductive health conditions
- Parasite Biology and Host Interactions
- Isotope Analysis in Ecology
- Maritime and Coastal Archaeology
- Marine Bivalve and Aquaculture Studies
- Cephalopods and Marine Biology
- Genomics and Phylogenetic Studies
- Crustacean biology and ecology
- Ichthyology and Marine Biology
- Marine and environmental studies
- Microbial Natural Products and Biosynthesis
- Methane Hydrates and Related Phenomena
- Environmental DNA in Biodiversity Studies
- Marine and fisheries research
- Microbial Community Ecology and Physiology
- Marine and coastal plant biology
- Diatoms and Algae Research
- Plant Diversity and Evolution
- Ocean Acidification Effects and Responses
Institut Méditerranéen de Biodiversité et d'Ecologie Marine et Continentale
2014-2024
Aix-Marseille Université
2014-2024
Station Marine d'Endoume
2010-2023
Institut de Recherche pour le Développement
2014-2023
Centre National de la Recherche Scientifique
2010-2023
Université d'Avignon et des Pays de Vaucluse
2014
Ifremer
1990-2006
Rutgers, The State University of New Jersey
1998
Abstract Late in summer 2003, extensive mass mortality of at least 25 rocky benthic macro‐invertebrate species (mainly gorgonians and sponges) was observed the entire Northwestern (NW) Mediterranean region, affecting several thousand kilometers coastline. We were able to characterize event by studying six areas covering main regions NW basin. The degree impact on each study area quantified 49 sites estimating proportion colonies affected populations gorgonian compared with reference data...
Abstract Dark marine habitats are often characterized by a food-limited condition. Peculiar dark include caves, the absence of light and limited water flow, which lead to reduced fluxes organic matter for cave-dwelling organisms. We investigated whether most abundant common fish Apogon imberbis has potential play role trophic vector in Mediterranean caves. first analysed stomach contents check repletion changes according nycthemeral cycle. then identified prey items, see they belong species...
Deep-sea sediments represent the largest but least known ecosystem on earth. With increasing anthropogenic pressure, it is now a matter of urgency to improve our understanding deep-sea biodiversity. Traditional morpho-taxonomic studies suggest that ocean floor hosts extraordinarily diverse benthic communities. However, due both its remoteness and lack expert taxonomists, assessing diversity very challenging task. Environmental DNA (eDNA) metabarcoding offers powerful tool complement studies....
Caminella Lendenfeld, 1894 is a poorly known Geodiidae genus with unclear phylogenetic relationships. In order to find new lines of evidence that could shed light on the evolutionary history Caminella, we decided revise type material and museum material, as well examine from underwater caves deep-sea ecosystems. doing so, formally show Isops maculosus Vosmaer, loricata are junior synonyms intuta (Topsent, 1892). We discuss different spicule morphological phenotypes in C. intuta, which may be...
During the exploration of NW Mediterranean deep-sea canyons (MedSeaCan and CorSeaCan cruises), several hexactinellid sponges were observed collected by ROV manned submersible. Two them appeared to be new species Farrea Tretodictyum. The genus had so far been reported with doubt from was listed as "taxa inquirenda" for two undescribed species. We here provide a proper description specimens encountered sampled. Tretodictyum recorded times in near Atlantic T. tubulosum Schulze, 1866, again...
Abstract The north‐western Mediterranean Sea's high biodiversity originates from a mixture of temperate and subtropical species. Large‐scale warming has been detected through northward range shifts ‘warm‐water’ species, mass‐mortality events for ‘cold‐water’ invertebrates. Marine caves are affected in more subtle way. By monitoring endemic species cave mysids (Crustacea) comparing our results with data the literature, we observed strong decline one coupled success another. Near Marseille...
Results from recent biological studies (including three Alvin dives in July 1997) of the southernmost deep-sea hydrothermal area known on Mid-Atlantic Ridge (MAR), Logatchev area, are described. The includes vent fields, each with a different geological setting corresponding to: (1) large sulphide mound ‘smoking craters’; (2) an active chimney complex (known as ‘Irina-2’); and (3) diffuse flow through soft sediment (‘Anya's Garden’). Hydrothermal communities found at these fields differ...
Since its description from the Galapagos Rift in mid-1980s, Archinome rosacea has been recorded at hydrothermal vents Pacific, Atlantic and Indian Oceans. Only recently was a second species described Pacific Antarctic Ridge. We inferred identities evolutionary relationships of representatives sampled across vent range genus, which is now extended to cold methane seeps. Species delimitation using mitochondrial cytochrome c oxidase subunit I (COI) recovered up six lineages, whereas...
Three new species of the genus Heteromysis S.I. Smith, 1873 (tribus Heteromysini), are described from a rich stock mysids obtained on request international community professional aquarium keepers. The 18S rDNA and COI sequences three were distinct each other also published in DNA databases. (Olivemysis) schoenbrunnensis sp. nov. is morphologically characterized within subgenus Olivemysis based structure first second antennae, male pleopods, uropods, telson. (Heteromysis) gulfarii outstanding...
Organisms release and detect molecules for defense, reproduction, feeding strategies finding suitable habitats. For some migratory species, homing behavior could be related to the recognition of their home chemical fingerprint made an assemblage from habitat. In marine realm, functioning ecosystems such as underwater caves largely depends on trophic interactions between outside environment. A key feature these relies circadian migration small crustaceans (Mysida) cave habitat open sea....
B~omass is a poorly documented parameter of the hydrothermal ecosystem, partly due to d~fficult~es in estimating it.Because alvinellid polychaete worms mostly live tubes, and on very irregular surfaces difficult sample, n original biomass estimation method based v ~d e o analysis was proposed tested populations East Pacific Rise t 13" N The area covered by 3 main specles accurately estimated from geometrical calculations obllque-angle conditions, requiring only object measurements monitor...
Amphisamytha has five currently recognized species. One of these, A. galapagensis been reported from numerous hydrothermal vents and methane seeps across the Pacific Ocean. Here, a collection range habitats, as well Amathys lutzi Atlantic vents, were studied using morphology DNA sequences mitochondrial (COI 16S rRNA) nuclear (18S genes. Phylogenetic analyses revealed deep-sea clade comprised previously species, three lineages that are treated new The morphologically distinct was nested...
The sponges Oopsacas minuta (Hexactinellida) and Asbestopluma hypogea (Demospongiae, Cladorhizidae) belong to groups that are typical of deep water, but both species have already been recorded from the shallow water Trois Pépés cave at La Ciotat (Marseille area). We here report on subsequent findings A. in two other littoral caves: one Garmenjak Island Middle Adriatic (Croatia), Jarre (Marseille, France). maximum temperatures experienced situ by these populations not only significantly...
Deep‐sea hydrothermal‐vent habitats are typically linear, discontinuous, and short‐lived. Some of the vent fauna such as endemic polychaete family Alvinellidae thought to lack a planktotrophic larval stage therefore not broadcast‐release their offspring. The genetic evidence points exchanges on scale that seems contradict this type reproductive pattern. However, rift valley may topographically rectify bottom currents, thereby facilitating dispersal propagules between active sites separated...