Dear Marmammers, on behalf of all co-authors, I'd like to announce the publication of the following paper: Cunha HA, Medeiros BV, Barbosa LA, Cremer MJ, Marigo J, Lailson-Brito J, Azevedo F, Solé-Cava AM (2014) Population Structure of the EndangeredFranciscanaDolphin (Pontoporia blainvillei): Reassessing Management Units. PLoS One 9 (1): e85633. doi:10.1371/journal.pone.0085633 Abstract Franciscanas are the most endangered dolphins in the Southwestern Atlantic. Due to their coastal and estuarine habits, franciscanas suffer from extensive fisheries bycatch, as well as from habitat loss and degradation. Four Franciscana Management Areas (FMA), proposed based on biology, demography, morphology and genetic data, were incorporated into management planning and in the delineation of research efforts. We re-evaluated that proposal through the analysis of control region sequences from franciscanas throughout their distribution range (N = 162), including novel sequences from the northern limit of the species and two other previouslyunsampledlocalities in Brazil. A deep evolutionary break was observed between franciscanas from the northern and southern portions of the species distribution, indicating that they must be managed as two Evolutionarily Significant Units (ESU). Furthermore, additional FMAs should be recognised to accommodate the genetic differentiation found in each ESU. These results have immediate consequences for the conservation and management of this endangered species. The pdf can be downloaded from: http://www.plosone.org/article/info%3Adoi%2F10.1371%2Fjournal.pone.0085633 Cheers, Haydée ~~~~~~~~~~~~~~~~~~~~ Haydée A. Cunha, PhD Laboratório de Biodiversidade Molecular (UFRJ)/ MAQUA - Laboratório de Mamíferos Aquáticos e Bioindicadores (UERJ) Dept. de Genética, Inst. de Biologia Universidade Federal do Rio de Janeiro - UFRJ CCS, Bloco A, Sl. A2-098. Ilha do Fundão, Rio de Janeiro, RJ. Brasil. +55 21 2562-6389/2334-0065/9981-8382