Latin American Journal of Aquatic Mammals (LAJAM)
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Monitoring of four rehabilitated Amazonian manatees
No full textThe note presents details of movements of four Amazonian manatees previously rehabilitated in captivity, by radiotelemetry
The northernmost stranding of rough-toothed dolphins on the Brazilian coast
No full textWe present the first record of Steno bredanensis for the coast of Brazil's northernmost state of Amapa
Report of two fin whale (Balaenoptera physalus) stranding associated with ship strike in central-south coast of Chile.
No full textIn the last decades, collisions between ships and cetaceans have increased worldwide, with fin whales (Balaenoptera physalus), the species that has presented higher mortality due to this cause. This report describes post mortem findings in two juvenile B. physalus stranded dead on the central-south coast of Chile in 2018 and 2019. Gross findings revealed traumatic lesions attributed to interaction with large vessels. Both sites are ports that present high traffic of small and large vessels, increasing the probabilities of ship strike. In Chile, three areas are of high relevance for this species, Atacama (27°S), San Antonio (33°35′S) and Talcahuano (36°30´S), where juvenile age segregation is present. Although systematic records of interactions between cetaceans and vessels are non-existent, these events must be approached with a multidisciplinary focus, as diagnostics and reports are key to establish protection and conservation policies for these large mammals
Stranding of pygmy sperm whale, Kogia breviceps (de Blainville, 1838), in eastern French Guiana
No full textThis short communication presents the first stranding record for pygmy sperm whale in French Guiana
Amazon River’s mouth, the northernmost stranding site of humpback whales in Brazil
No full textThe current known distribution of humpback whales in Brazil is based on regular sightings and occasional strandings. Distribution of humpback whales in Brazil ranges from Rio Grande do Sul (34oS) in the south, to Pará (00o42’S) in the north. We present the second case of a stranded humpback whale in the Amazon coast, and the northernmost stranding record in Brazil
Tough life: the case of a young coastal common bottlenose dolphin repeatedly entangled
No full textWe report the case of a young coastal bottlenose dolphin (Tursiops truncatus) hooked and entangled in artisanal fishing gear on two occasions in a period of six months. In both occasions the animal managed to get rid of the gear by itself. The case occurred in the inner estuary of Gulf of Guayaquil, Ecuador. The animal survived both events, but scars remained in various parts of the body and missed fluke tips. Photographs of the individual after the events allowed to evaluate the healing process. This case demonstrated that longlines represents a threat for this population
Cetacean sightings in Puerto Rican waters: including the first underwater photographic documentation of a minke whale (Balaenoptera acutorostrata)
No full textOpportunistic encounters by experts and the public (i.e. fishermen, tourists) can be great assets to understanding cetacean distribution, especially in areas where surveys are limited. Sightings of Puerto Rican pelagic cetaceans have been reported in the past, with known seasonality in some species. Within this report, we document sightings for eight species, report new monthly distributions for three of these species, as well as the presence of rough-toothed dolphins close to the coast, and the first underwater sighting of a minke whale (Balaenoptera acutorostrata) off San Juan, Puerto Rico. Unfortunately, the lack of long-term studies due to limited funding and resources has been an obstacle in determining species diversity and overall health of cetacean populations. However, this note provides evidence that collaboration between marine biologists and citizen-based science is possible and desired, and serves as a valuable resource to protect and conserve native, pelagic, and transient cetacean species around Puerto Rican waters
