Is the Antillean manatee (Trichechus manatus manatus) back in town? Presence of the species at the “área de Protección de Flora y Fauna Yum Balam”, Quintana Roo, Mexico

摘要

The Antillean manatee ( Trichechus manatus manatus ), considered endangered, is protected at national (Mexico) and international levels. Since Hurricane Gilbert in 1988, sightings of manatees have been rare at Conil Lagoon, located within the natural reserve “área de Protección de Flora y Fauna Yum Balam”. However, increased reports of sightings from local fishermen and tour guides suggest manatees may be repopulating the lagoon. Here we report 15 sightings of the Antillean manatee from 2011 to 2016. Group sizes ranged from 1 to 15 individuals and we documented the presence of reproductive groups and mother-calf pairs. The apparent recovery of the species at Conil Lagoon and adjacent areas may be the result of local conservation efforts, or the result of changes in habitat use and distribution of the Caribbean population. A systematic, long-term local monitoring program is necessary to estimate manatee abundance and characterize their distribution in this area.