
Ludovic Rémy Hoarau3R : Rehabilitation of Reunion island Reef · 3R
Ludovic Rémy Hoarau
PhD Marine biology and ecology
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Publications (20)
Mesophotic coral ecosystems (MCEs) have gained considerable attention this last decade but the paucity of knowledge on these ecosystems is pronounced, particularly in the Southwestern Indian Ocean region. We explore the spatial variation in macro-benthic and scleractinian communities along a wide depth gradient (15–95 m) and among contrasted sites...
During the 42th International Symposium of Se Turtle and precisely on the session on Threats, Fates, and Fisheries, I presented our recently researched paper (Thibault et al..2023) on the possibility of using Loggerhead sea turtles as bioindicator species for plastic pollution in the Indian Ocean.
We analyzed plastic debris ingested by loggerheads from bycatch between 2007 and 2021 in the Southwest Indian Ocean (SWIO). We also analyzed plastic debris accumulated on beaches of the east coast of Madagascar as a proxy for ocean plastics to compare the characteristics of beached plastics and plastic ingested by turtles. We conducted a "brand aud...
Among induced mass-mortality events on coral reef, extreme low tides may ultimately lead to considerable reef community deaths on intertidal reef flats due to unusually long and significant aerial exposure. Here, we report an extensive coral mortality event induced by a negative sea level anomaly (nSLA) that occurred across Reunion Island during th...
This study explored the unknown biodiversity of mesophotic coral ecosystems (MCEs) in Reunion Island, located in the Southwestern Indian Ocean. MCEs are still largely unexplored whereas they are assumed to shelter a rich and unique biodiversity. As they might likely serve as a source for recolonization after disturbances in shallower reefs, their s...
Marine wildlife tourism has rapidly developed in Reunion Island, due to a large demand for interactions with a resident population of spinner dolphins (Stenella longirostris). The presence of dolphin-watching vessels close to dolphin groups can cause short-term impacts on their behaviour; cumulative incidences likely result in deleterious long-term...
Despite increased attention over the last decade on Mesophotic Coral Ecosystems (MCEs) [...]
Whale-watching activities provide important socio-economic benefits for local communities and constitute powerful platforms incentive for marine mammals protection or more broadly marine environments. However, these activities can cause adverse effects on targeted populations, with considerable downside associated risks of injuries and fatality for...
Whale-watching, including swim-with-whales activities, is developing at an enormous rate in Reunion Island. This is raising concerns about its impacts on breeding humpback whales and challenging the sustainability of the activity. In 2017, a dedicated at sea patrol team, “Quietude” was created to observe, monitor and sensitize whale watchers at sea...
The effect of nature-based tourism on wildlife has been the focus of much attention. Studies have demonstrated how boat-based cetacean-watching tourism can cause both short-term and long-term effects on targeted populations. However, limited attention has been given to the effect of swim-with activities on humpback whales (Megaptera novaeangliae)....
Whale-watching activities provide important socioeconomic benefits for local communities and constitute powerful platform incentives for marine mammals' protection or more broadly marine environments. However, these activities can cause adverse effects on targeted populations, with considerable downside associated risks of injuries and fatality for...
Coral reef degradation due to environmental change, including anthropogenic disturbances, is a major concern worldwide. Detecting and assessing both temporal and spatial changes in benthic cover is a crucial requirement to inform policy makers and guide conservation measures. Here, we introduce a spatial approach based on high resolution multispect...
Albacore is one of the most important commercially harvested species in the world’s oceans. Despite a long history of scientific research, there is no global review or synthesis of knowledge about the species across all oceanic regions. We analysed 613 published studies that report on albacore and summarize the current state of knowledge on biology...
Contractualisation Ifremer/Office de l'eau Réunion. Synthèse collective des travaux menés dans le cadre des Groupes de travail DCE de La Réunion réunissant des experts de l'Université de La Réunion (Lab. ECOMAR), de l'IRD de La Réunion, de l'ARVAM, de PARETO, du GIP RNMR et de la DEAL Réunion sous la coordination de la Délégation Ifremer océan Indi...
The most comprehensive contribution to our understanding of albacore tuna, Thunnus alalunga, comes from studies in the Pacific and Atlantic Ocean. In the Indian Ocean, there is little information about this species in the literature. In the present paper, we propose a short review on albacore in the Indian Ocean with a particular attention on the b...