The pikeperch is a freshwater/brackish water fish species with growing interest for European aquaculture. Wild populations show signs of decline in many areas of the species natural range due to human activities. The comparative evaluation of genetic status in wild and domesticated populations is extremely useful for the future establishment of gen...
Physical enrichment of structures has been used for the last decades in aquaculture to improve fish production and welfare. Until now, this enrichment has been practiced in fish monoculture but not in fish polyculture. In this study, we developed a polyculture of two freshwater species (pikeperch and sterlet) in recirculated systems (tank of 2.4 m3...
La haute mer, de par son éloignement physique auquel s'ajoutent d'autres formes de distance, présente des défis particuliers pour l'enquête ethnographique. À partir de nos recherches sur la pêche thonière et la conservation de la biodiversité marine dans le Pacifique, nous proposons une réflexion commune sur les méthodes qui nous ont permis de mene...
The shorthead drum Larimus breviceps has an important role in the subsistence of local communities. However, studies addressing the trophic ecology of this species are still scarce. Here we present further information on the trophic ecology and ecomorphology of L. breviceps, including dietary analyses, carbon and nitrogen stable isotopes compositio...
Published in Proceedings of the National Academy of Sciences of the United States of America
In most animals, sex determination occurs at conception, when sex chromosomes are segregated following Mendelian laws. However, in multiple reptiles and fishes, this genetic sex can be overridden by external factors after fertilization or birth. In some species, the genetic sex may also be governed by multiple genes, further limiting our understand...
Nearshore habitats are essential for many marine fish species but are subject to anthropogenic stressors. Assessing the consequences of essential fish habitat degradation on population dynamics and productivity is challenging. We address this by focusing on a metapopulation of the common sole Solea solea , a high-value, exploited flatfish in the Ea...
Published in Scientific Reports
In European sea bass (Dicentrarchus labrax), as in many other fish species, temperature is known to influence the sex of individuals, with more males produced at relatively high temperatures. It is however unclear to what extent growth or stress are involved in such a process, since temperature is known to influence both growth rate and cortisol pr...
Published in BMC Ecology and Evolution
BackgroundConsidering wild inter-populational phenotypic differentiation can facilitate domestication and subsequent production of new species. However, comparing all populations across a species range to identify those exhibiting suitable key traits for aquaculture (KTA; i.e. important for domestication and subsequent production) expressions is no...
Electronic monitoring systems (EMS) have increasingly been used as an alternative technology to complement onboard observer programs and improve the management of tuna fisheries. EMS was installed on French purse seiners in 2014 in the frame of the OCUP program and pilot studies have shown that the system allows in-depth monitoring of fishing activ...
