The purpose of this survey is to collect baseline information of passive acoustic monitoring effort and aquatic mammal bioacoustics research in Latin America as the first step in organizing the 1st LAMLA – Listening for Aquatic Mammals in Latin America Meeting. Passive acoustic monitoring is used to investigate several aspects of the biology and ecology of aquatic mammals. In recent decades, it has become a widely used method by experts from all over the globe. Some significant advances have been made in the development of this field in Latin American countries. However, the field of aquatic mammal bioacoustics remains underdeveloped in Latina America, despite the huge diversity of aquatic mammals and the gaps in current scientific knowledge of species, habitats and conservation threats. A clearer picture of passive acoustic monitoring effort, techniques used, target species and habitats is necessary in order to define priority lines of work. The aim of LAMLA is to bring the aquatic mammal acoustic research community together, facilitating collaborative work and collective decision-making. In order to identify interest and potential participants from research groups working within Latin America, we kindly invite one representative from each research group to complete our diagnostic questionnaire at http://kwiksurveys.com/s/9RFyuG8j. The online survey will be available until *December 10.* We appreciate your attention and we hope to have great news about LAMLA for you soon! Best wishes, LAMLA Organizing Committee