Pathology in skeletons of Peale’s dolphin Lagenorhynchus australis from southern South America

Martín, Analía Anahí San; Macnie, Silvina V.; Goodall, R. Natalie P.; Boy, Claudia Clementina

doi:10.3354/dao03010

Cited by 6 publications

(2 citation statements)

References 24 publications

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“…Bone lesions such as osteolysis, osteomyelitis and periostitis commonly affect the skull (Pascual et al, 2000), vertebral bones and ribs of cetaceans (San Martín et al, 2016). However, skull osteoporosis in odontocetes, as what we described in the longfinned pilot whale is rare.…”

Section: Discussionmentioning

confidence: 50%

Pathological Findings in Cetaceans Sporadically Stranded Along the Chilean Coast

et al. 2020

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Chile has one of the largest coastlines in the world with at least 50% of the world cetacean species occurring within its jurisdictional waters. However, little is known regarding the health status and main causes of death in cetaceans off continental Chile. In this report, we summarize the major pathological findings and most likely causes of death of 15 cetaceans stranded along the Chilean coast between 2010 and 2019. Drowning, due to fishing gear entanglement, was the most likely cause of death in 3 Burmeister's porpoises (Phocoena spinipinnis), a Risso's dolphin (Grampus griseus) and a short-beaked common dolphin (Delphinus delphis). Additionally, the 3 Burmeister's porpoises had mild to moderate eosinophilic and histiocytic pneumonia with pulmonary vasculitis associated with the nematode Pseudalius inflexus. A fourth Burmeister's porpoise died of drowning after stranding alive at a sandy beach. Two fin whales (Balaenoptera physalus) died most likely of trauma associated with large vessel collision. A long-finned pilot whale (Globicephala melas) and an Orca (Orcinus orca) stranded most likely due to traumatic intra/interspecific interaction with other odontocete although for the pilot whale, osteoporosis with loss of alveolar bone and all teeth could have played a role. For a Strap-toothed beaked whale (Mesoplodon layardi), Dwarf sperm whale (Kogia sima), Southern right-whale dolphin (Lissodelphis peronii), Peale's dolphin (Lagenorhynchus australis) and a dusky dolphin (Lagenorhynchus obscurus), the cause of stranding could not be determined. This study shows, despite the small number of examined carcasses that in Chile, human related trauma is an important cause of single cetacean stranding events.

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Section: Discussionmentioning

confidence: 50%

Pathological Findings in Cetaceans Sporadically Stranded Along the Chilean Coast

et al. 2020

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“…The occurrence of morphological, traumatic, and pathological changes has been reported for cetaceans of different age group and sex. Changes are related to environmental, behavioral, or anthropic factors (Costa et al, 2016; Denuncio et al, 2016; Félix et al, 2007; Fettuccia et al, 2013; Kompanje, 1999; Montes et al, 2004; Niño‐Torres et al, 2019; San Martin et al, 2016; Sweeny et al, 2005; Tomo et al, 2018; Van Bressem et al, 2006, 2007).…”

Section: Figurementioning

confidence: 99%

Skull and mandible alterations in Amazon river dolphins (de Blainville, 1817) (Cetacea, Iniidae, Inia spp.)

Lara,

da Silva,

Amaral

2023

Marine Mammal Science

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Osteological studies help to understand biological issues such as locomotion, distribution, evolution, and ecology of a given species (Bell et al., 2002;Cooper et al., 2007). Such studies are widely used in taxonomy, making it possible to show phylogenetic relationships (Perrin, 1975;Tanaka & Fordyce, 2014). Macroscopic analysis of bones may provide relevant data on the life history of vertebrates (Bianucci et al., 2010;Simões-Lopes et al., 2008).The number of studies on bone changes in cetaceans has increased in recent decades. The occurrence of morphological, traumatic, and pathological changes has been reported for cetaceans of different age group and sex.

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Mandibular osteomyelitis in the bottlenose dolphin Tursiops truncatus (Montagu, 1821) (Odontoceti: Cetacea): first case in the Mexican Caribbean

Níño-Torres

Castelblanco‐Martínez

Blanco‐Parra

et al. 2019

Mammalia

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Oral pathological conditions are common in mammals and have been relatively well documented for some wild groups, but are rarely reported in marine mammals. Here, we report for the Mexican Caribbean the first case of mandibular osteomyelitis in a free-ranging dolphin. A bottlenose dolphin Tursiops truncatus adult male (256.5 cm total length) was found stranded dead in the west coast of the State Reserve “Chetumal Bay Manatee Sanctuary”. Herein, we discuss some plausible explanations about the origin of this lesion to improve the knowledge about the species biology.

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Pathology in skeletons of Peale’s dolphin Lagenorhynchus australis from southern South America

Cited by 6 publications

References 24 publications

Pathological Findings in Cetaceans Sporadically Stranded Along the Chilean Coast

Pathological Findings in Cetaceans Sporadically Stranded Along the Chilean Coast

Skull and mandible alterations in Amazon river dolphins (de Blainville, 1817) (Cetacea, Iniidae, Inia spp.)

Mandibular osteomyelitis in the bottlenose dolphin Tursiops truncatus (Montagu, 1821) (Odontoceti: Cetacea): first case in the Mexican Caribbean

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