Publications Scientifiques

2020

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27 Janvier 2020
Dietary and habitat niche partitioning in congeneric cryptobenthic reef fish species
Contact: SIMON BRANDL | Coral Reefs

ABSTRACT
Ecological niches hold critical information concerning the eco-evolutionary dynamics that govern biodiversity and abundance patterns. Cryptobenthic reef fishes account for approximately half of all reef fish species and are an abundant and important group on coral reefs worldwide. Yet, due to their small size and inconspicuous lifestyles, relatively little is known about the ecological niches of most cryptobenthic species. Here, we use gut content DNA metabarcoding to determine dietary niche overlap and prey richness in four sympatric species of cryptobenthic reef fishes in two genera (Acanthemblemaria aspera, A. spinosa, Enneanectes altivelis, and E. matador)...more

CITATION
Brandl, S.J., Casey, J.M. & Meyer, C.P. Coral Reefs (2020). https://doi.org/10.1007/s00338-020-01892-z


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Février 2020
Mass mortality in a Marine Educational Area on a remote South Pacific Atoll
Contact: DAVID LECCHINI | Marine Pollution Bulletin

ABSTRACT
In 2018, on the isolated Anaa atoll (South Pacific), a Marine Educational Area (MEA) was established by the local community to protect fisheries resources on the reef barrier next to their village. Whilst the remote location of the small MEA has provided some protection from anthropogenic pressures due to distance and low population, we showed that from 26 to 27 November 2018, high temperatures along with a hypoxic event and a low tide led to the mass mortality of several Anaa's marine species. The mass mortality in the MEA (area: 27,000 m2) included >14,000 juvenile fish, 1300 adult fish, 5100 juvenile crustaceans, and 260 juvenile octopus. This finding is particularly concerning because despite the creation of a MEA to protect marine resources, impacts from the warming waters associated with climate change limited the local efforts in Anaa atoll...more

CITATION
Lecchini, D., Bertucci, F., Almany, J., Beaury, J.P., Bagnis, H. Marine Pollution Bulletin (2020). https://doi.org/10.1016/j.marpolbul.2019.110836


2019

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6 Novembre 2019
Molecular mechanisms of acclimation to long‐term elevated temperature exposure in marine symbioses.
Contact: Bruno LAPEYRE | Global Change Biology

ABSTRACT
Seawater temperature rise in French Polynesia has repeatedly resulted in the bleaching of corals and giant clams. Because giant clams possess distinctive ectosymbiotic features, they represent a unique and powerful model for comparing molecular pathways involved in (a) maintenance of symbiosis and (b) acquisition of thermotolerance among coral reef organisms. Herein, we explored the physiological and transcriptomic responses of the clam hosts and their photosynthetically active symbionts over a 65 day experiment in which clams were exposed to either normal or environmentally relevant elevated seawater temperatures... more

CITATION
Alves Monteiro, HJ, Brahmi, C, Mayfield, AB, Vidal‐Dupiol, J, Lapeyre, B, Le Luyer, J. Molecular mechanisms of acclimation to long‐term elevated temperature exposure in marine symbioses. Glob Change Biol, 2019; 00:1-14. https://doi.org/10.1111/gcb.14907