Latin American Journal of Aquatic Mammals (LAJAM)
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What do we know about Pteronura brasiliensis in Uruguay?
No full textThe present contribution constitutes an exhaustive review of the existing information about P. brasiliensisin Uruguay
First record of the pygmy killer whale (Feresa attenuata) in Trinidad and Tobago waters
No full textOn 19 September 2011, a single pygmy killer whale (Feresa attenuata) was found at Hope Beach in Tobago. As it appeared to be struggling to swim it was examined, found to be a healthy, female (possibly adult) and was successfully released into deeper water. The report of this encounter documents the first record of Feresa attenuata in the waters around Trinidad and Tobago, in the southern Caribbean
Population size estimates of pink river dolphins (Inia geoffrensis) using mark-recapture methods on photo-identification
No full textPopulation size estimates of pink river dolphins (Inia geoffrensis) are critical to assess the conservation status of this species and the impacts of increasing human stressors in freshwater ecosystems. Photo-identifications of Inia dolphins were collected between February 2007 and August 2009 in two locations of the Colombian Amazon and Orinoco river basins. Population sizes of Inia were obtained by using the closed (Petersen) mark-recapture model on photo-identifications. The total population size estimate for right/left side individuals was 129/71 Inia dolphins (CV=0.36/0.35) in the Amazon location and 125/58 Inia dolphins (CV=0.77/0.69) in the Orinoco location. The survey and analysis protocols were designed to try to meet mark-recapture assumptions. However, photo-identification was incomplete in both study areas, and there could be recruitment and unequal probabilities of capture due to preferences of individuals for certain areas. Further effort should be focused towards expanding the photo-identification catalogues and creating long-term monitoring programs
Aquatic mammal science in Latin America: a bibliometric analysis for the first eight years of the Latin American Journal of Aquatic Mammals (2002-2010)
No full textWe conducted a meta-analysis of the publication statistics for Vols. 1-8 of the Latin American Journal of Aquatic Mammals (LAJAM), the joint scholarly publication of the Sociedad Latinoamericana de Especialistas en Mamíferos Acuáticos and the Sociedad Mexicana de Mastozoología Marina, with the following purposes: (a) identifying the main patterns in the authorship and content published between 2002 and 2010, and (b) assessing the contributions of these scientific societies in the Latin American and global contexts. With the caveat that the results are only representative of the researchers that chose to publish in LAJAM during the period covered by the study, the metadata from 168 articles indicated that most of the research was conducted on small odontocetes (Sotalia, Pontoporia, Tursiops) and pinnipeds (Arctocephalus, Otaria, Mirounga) of coastal habits. Rorqual whales (Balaenoptera, Megaptera) and oceanic odontocetes (Stenella, Mesoplodon, Orcinus, Delphinus) also were well represented. Studies of distribution (including first records) were the most common, followed by those related to feeding, strandings, health and bycatch. Seventeen countries were represented in the primary affiliation of the lead author, but just five dominated the contribution: Brazil (52%), Argentina (10%), México (7%), Uruguay (5%) and USA (5%). Among institution types, a university was reported as the primary affiliation type by 50% of the authors, while 26% reported a NGO, 17% a government agency and 7% another type of organization. A social network analysis of 404 authors identified a large, well-connected cluster of 263 authors. Within this cluster, 13 authors from Brazil, Perú, Argentina and Colombia were among the most collaborative. The female to male ratio was 1:1.6 among lead authors and 1:3.2 among lead authors that published more than one article, suggesting a gender disparity within this scientific community. According to Google Scholar™, 91 articles in LAJAM were cited in other publications through January 2012, with an average of 7.5 citations per article. The 15 most cited articles had between 13 and 15 citations, were predominantly from Brazil, and were mainly about small cetaceans
Cetacean ocurrence in the Tayrona National Park, a marine protected area in the Colombian Caribbean
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