@article{fdi:010060597, title = {{S}patial behaviour and site fidelity of the sicklefin lemon shark {N}egaprion acutidens in a remote {I}ndian {O}cean atoll}, author = {{F}ilmalter, {J}. {D}. and {D}agorn, {L}aurent and {C}owley, {P}. {D}.}, editor = {}, language = {{ENG}}, abstract = {{U}nderstanding the movement behaviour of any species is important for developing species-specific management and conservation measures. {I}n recent years, the sicklefin lemon shark {N}egaprion acutidens has shown rapid range reductions and has even disappeared altogether in certain areas. {I}n this study, the area use patterns and site fidelity of the {N}. acutidens were assessed at the {S}t. {J}oseph {A}toll in the {S}eychelles. {P}assive acoustic telemetry methods were employed to monitor the movements of 19 tagged individuals for 1 year. {A}rea use within the lagoon of the atoll was found to be highly restricted, with individuals typically utilising a small portion of the available area throughout the year. {A} high-use zone was apparent in the south-east of the atoll's lagoon, which was shared by many of the monitored individuals. {F}idelity to the study site was found to be extremely high, with the 79 % of tagged {N}. acutidens still present in the atoll at the end of the study. {I}ndividuals displayed both diel and tidal movements between the lagoon and surrounding habitats. {T}he restricted area use and high site fidelity observed in this study highlight both the vulnerability of this species to rapid over exploitation and importance of remote habitats such as the {S}t. {J}oseph {A}toll in their future conservation. {T}he results obtained here can be used to inform management decisions regarding the development and utilisation of similar atoll environments throughout the species' range.}, keywords = {{OCEAN} {INDIEN}}, booktitle = {}, journal = {{M}arine {B}iology}, volume = {160}, numero = {9}, pages = {2425--2436}, ISSN = {0025-3162}, year = {2013}, DOI = {10.1007/s00227-013-2237-1}, URL = {https://www.documentation.ird.fr/hor/fdi:010060597}, }