Publications by authors named "Thierry Lavitra"
Article Synopsis
- The sea cucumber is a vital species in Chinese aquaculture, but the mechanisms behind its sex determination are not well understood.
- This study analyzed sex-related genetic variations in several wild populations, indicating that sea cucumbers use a polygenic sex determination system with the SLC8A gene as a candidate for determining sex.
- Researchers identified specific male-related genetic markers and significant chromosomal variations, suggesting a complex, multi-gene approach to sex determination rather than the typical XX/XY model.
Article Synopsis
- The HIARA study, initiated in December 2022, aims to evaluate the economic and nutritional role of seafood for coastal communities in Madagascar, focusing on the Bay of Ranobe through 2026.
- The research investigates whether constructing artificial coral reefs can enhance fish populations, boost local fish catches, and improve the livelihoods, nutrition, and mental well-being of fishers and their communities.
- The study involves monitoring ecological and social factors in 14 communities, collecting data on fishery health, diets, resource strategies, and health indicators every three months to analyze the public health effects of artificial reefs on local residents.
Quantifying microplastics (MPs) in marine environments is challenging due to the complexities of differentiation from other materials. This study aims to distinguish petro-sourced plastic microfilaments from organic ones in environmental samples using scanning electron microscope coupled with energy dispersive X-ray (SEM-EDX) analysis. Therefore, 38 particles resembling MPs (PRMPs) from sediments and organisms in Madagascar were analyzed.
View Article and Find Full Text PDFDespite their importance in coral reef ecosystem function and trophodynamics, the trophic ecology of nocturnal shes ( Apogonidae, Holocentridae, Pempheridae) is by far less studied than diurnal ones. The Apogonidae (cardinal shes) include mostly carnivorous species and evidence of trophic niche partitioning among sympatric cardinal shes is still limited. The present study combines stomach contents and stable isotope analyses to investigate the feeding ecology of an assemblage of eight cardinal shes from the Great Reef of Toliara (SW Madagascar).
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