Two cases of malformations in bottlenose dolphins Tursiops truncatus (Montagu, 1821) in Aragua, Venezuela

Cobarrubia-Russo, Sergio; Sawyer, Imogen; Molero, Alimar

doi:10.5597/lajam00280

Cited by 1 publication

(1 citation statement)

References 18 publications

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“…The aetiology of degenerative or traumatic scoliosis remains poorly understood, but it is generally believed to result from diseases (Kompanje, 1995) or physical trauma (Robinson, 2014). Although diverse causes of kyphoscoliosis in cetaceans have been reported, including congenital, degenerative and traumatic factors, these cases are predominantly associated with bottlenose dolphins (Berghan & Visser, 2000; Cobarrubia‐Russo et al., 2022; DeLynn et al., 2011; Morton, 1978; Robinson, 2014). Occasional reports have mentioned kyphoscoliosis or associated skeletal deformities in other Delphinidae species, such as killer whales (Berghan & Visser, 2000), Risso's dolphins (Nutman & Kirk, 1988), white‐beaked dolphins (Bertulli et al., 2015), long‐finned pilot whales (Sweeny et al., 2005), common dolphins and Hector's dolphins (Berghan & Visser, 2000).…”

Section: Introductionmentioning

confidence: 99%

First report of kyphoscoliosis in the narrow‐ridged finless porpoises (Neophocaena asiaeorientalis): Findings from congenital and degenerative cases comparison using post‐mortem computed tomography

Yuen,

Kim,

Lee

et al. 2024

Veterinary Medicine & Sci

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IntroductionSpinal deformities, including kyphoscoliosis, have been consistently documented in cetaceans. However, the majority of reported cases of kyphoscoliosis in cetaceans pertain to bottlenose dolphins, with limited information on its occurrence in narrow‐ridged finless porpoise (NFP) (Neophocaena asiaeorientalis).Materials and methodsIn November 2021, two deceased NFPs were discovered stranded on the shores of the Republic of Korea. As part of the pioneer stranded cetacean imaging programme in the Republic of Korea, both carcasses underwent post‐mortem computed tomography (PMCT), revealing congenital and degenerative traumatic kyphoscoliosis, respectively.ResultsAlthough kyphoscoliosis may not have directly caused the demise of these individuals, it is hypothesized that the reduced spinal range of motion and mobility associated with kyphoscoliosis may have contributed to their deaths.ConclusionThis case report presents the first documented cases of kyphoscoliosis in two NFPs stranded in Korean waters, utilizing PMCT as an efficient methodology for assessing skeletal abnormalities in cetaceans.

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