Dear colleagues, My co-authors and I are pleased to announce our recent publication: Rocha A, Marchetto C, Pacheco L and Secchi ER. 2019. Occurrence of blue whales (*Balaenoptera musculus*) in offshore waters of southeastern Brazil. Marine Biodiversity Records. https://doi.org/10.1186/s41200-019-0163-8 Abstract: At-sea sightings of blue whales, *Balaenoptera musculus*, in Brazil are rare. A mother-calf pair was observed in deep (2645m) waters off southeastern Brazil (22°11′S 038°58′W); during a seismic survey in July 2014. It is unknown to which of the subspecies the animals sighted belong. The presence of a calf suggests that blue whales use deep waters off Brazil as calving or nursing grounds. The identification and conservation of wintering grounds for blue whale populations is important to promote the recovery of blue whales as their numbers were critically reduced as a result of commercial whaling. An open access PDF copy can be downloaded from http://em.rdcu.be/wf/click?upn=lMZy1lernSJ7apc5DgYM8eHSezOXtFfXTYFJeG1xLBk-3... Kind regards, Alessandra Rocha. -- Bolsista do *Projeto de Conservação da Toninha no litoral norte do Rio Grande do Sul: integrando pesquisa e o conhecimento das comunidades pesqueiras -* Grupo de Estudos de Mamíferos Aquáticos do RS - GEMARS Mestre em Oceanografia Biológica (Universidade Federal do Rio Grande) Médica Veterinária (Universidade Federal Fluminense) Alessandra Rocha.