Gavilan, Simone AlmeidaSilva, Maria Rosiemilly da2023-03-082023-03-082022-12-14SILVA, Maria Rosiemilly da. Dados biométricos de peixes-boi marinhos (Trichechus manatus manatus; Linnaeus, 1758) mantidos em reabilitação no Centro de Reabilitação de Animais Silvestres do PCCB-UERN. 2022. 34 f. Trabalho de Conclusão de Curso (Graduação em Ciências Biológicas) – Centro de Biociências, Universidade Federal do Rio Grande do Norte, Natal, 2022.https://repositorio.ufrn.br/handle/123456789/51844The marine manatee (Trichechus manatus) is a marine mammal belonging to the order Sirenia and the family Trichechidae. In Brazil, the species occurs from Amapá to Alagoas, showing a discontinuous distribution and with several sources of anthropic impacts. The coast of the state of Rio Grande do Norte (RN) and of the state of Ceará (CE), in Northeast Brazil, has a high incidence of strandings of marine manatee (Trichechus manatus manatus) neonates, demanding conservation and management measures of the species. The objective of this study was to analyze growth characteristics of marine manatees kept in rehabilitation at the Centro de Reabilitação de Animais Silvestres do Projeto Cetáceos da Costa Branca da Universidade do Estado do Rio Grande do Norte (PCCB-UERN) [Wild Animal Rehabilitation Center of the Costa Branca Cetaceans Project at the State University of Rio Grande do Norte]. Biometric data of dorsal span (ED; cm), total length (CT; cm), body weight (PC; kg) and age (months) of 19 individuals (ten females and nine males) were examined. The marine manatee neonates were found stranded between the period of October 21, 2017 and February 1, 2022 in the Potiguar Basin, comprising the states of RN and CE. In the data analysis, descriptive statistics were used to verify the relationships between the ED, CT and PC measurements in relation to age; and the linear function to obtain an estimate of the growth line of the manatee in rehabilitation. Student's t test was also performed in order to detect the presence or absence of significant morphometric differences between sexes at the time of rescue. In the results of this study, the marine manatee neonates showed mean values of CT and PC similar to individuals stranded in other locations. At the time of rescue, females had higher mean values of body weight than males, although there were no significant differences between biometric measurements (CT; PC) between sexes. The results also indicate that the differences in the values of the ED and PC measurements between the sexes, mainly the PC, increase with the age of the manatee. The analysis of biometric data of marine manatees in this study contributes to the assessment of the growth of these animals in rehabilitation, in addition to adding information about their biology in the literature and helping in the conservation of the species.Attribution-NonCommercial-NoDerivs 3.0 Brazilhttp://creativecommons.org/licenses/by-nc-nd/3.0/br/SirêniosSireniansNeonatosNeonatesEncalhesStrandingsCrescimentoGrowthBiometriaBiometrybachelorThesisCNPQ::CIENCIAS BIOLOGICAS