A SCIENTOMETRIC REVIEW ON LEUCISM IN WILD DOLPHINS
DOI:
https://doi.org/10.18764/1981-6421e2020.9Palavras-chave:
Albinism, Abnormal coloration, Cetacean, Scienciometric analysis, Dolphin sightingsResumo
ABSTRACT
Leucism, a category of partial albinism, has been observed in several marine mammals, including cetaceans. The underlying mutations, however, have not yet been identified, and a severe knowledge gap concerning this condition in these animals, has, therefore, been noted. In this context, the present study performed a scientometric-based review on leucism in dolphins, assessing the distribution of confirmed cases worldwide. Reports ranged from 1929 to 2019, with a total of only 14 records on confirmed leucism cases obtained from the literature. This extremely low number of records confirms the significant knowledge gap for leucism in dolphins, hindering further discussions and insights
into the ecological and physiological implications of this condition. All records report on leucistic dolphin sightings in the northern hemisphere, except for one, in southeastern Brazil. The potential causes of this condition are discussed for the investigated populations, and the role of citizen science is highlighted as a potential tool to obtain further information on the subject.
RESUMO
O leucismo, uma categoria de albinismo parcial, tem sido observado em vários mamíferos marinhos, incluindo cetáceos. As mutações subjacentes, no entanto, ainda não foram identificadas, e uma grave lacuna de conhecimento sobre essa condição nesses animais foi observada. Neste contexto, o presente estudo realizou uma revisão baseada em cienciometria acerca de leucismo em golfinhos, avaliando a distribuição de casos confirmados ao redor do mundo. Registros variaram de 1929 a 2019, com um total de apenas 14 registros de casos confirmados de leucismo obtidos na literatura. Este número extremamente baixo de registros confirma a significativa lacuna de conhecimento do leucismo em golfinhos, dificultando discussões e percepções adicionais sobre as implicações ecológicas e fisiológicas dessa condição. Todos os registros relatam avistamentos de golfinhos leucísticos no hemisfério norte, exceto um, no sudeste do Brasil. As causas potenciais dessa condição são discutidas para as populações investigadas, e o papel da ciência cidadã é destacado como uma ferramenta potencial para obter mais informações sobre o assunto.
Palavras-chave: Albinismo; Coloração anormal; Cetáceo; Análise cienciométrica; Avistamentos de golfinhos.
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