Dear Colleagues,
We are pleased to announce a new publication in Diseases of Aquatic Organisms:
ABSTRACT: Skeletal tissues of 49 humpback whales Megaptera novaeangliae that stranded between 2002 and 2011 along the Abrolhos Bank seashore and its adjacent waters in Brazil were studied. Twelve (24.5%) animals presented pathological changes in one or more bones. Degenerative changes and developmental malformations were most frequent (10.2% each), followed by inflammatory/infectious and traumatic lesions (8.2% each). Infectious diseases led to severe lesions of the caudal vertebrae of 2 whales. In one of these individuals, the lesions involved 6 caudal vertebrae, leading to ankylosis of 3 vertebrae. Degenerative changes were observed in the vertebral columns of 3 animals, involving the joints of 13 ribs of 1 individual, and in the humerus of 1 whale. Traumatic lesions, such as osseous callus in the ribs, were observed in 4 animals. In 1 whale, the rib showed severe osteomyelitis, possibly resulting from the infection of multiple fractures. Developmental abnormalities such as spina bifida on 3 cervical vertebrae of 1 whale, fusion of spinal processes on thoracic vertebrae of 1 individual and fusion of the first 2 ribs unilaterally or bilaterally in 4 animals were found. Chronic infectious conditions found in the axial skeleton may have restrained spinal mobility and had detrimental effects on the general health of the animals, contributing to stranding and death. To our knowledge, this is the first systematic study on skeletal lesions in stranded humpback whales.
Available at: http://www.int-res.com/abstracts/dao/v101/n2/p145-158/
DOI: 10.3354/dao02518
PDF copies are available upon request to kgroch@terra.com.br
Please, contact me if you have any questions.
Kind regards,
Kátia
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Méd. Vet. Kátia R. Groch
Doutoranda
Laboratório de Patologia Comparada de Animais Selvagens - LAPCOM
Faculdade de Medicina Veterinária e Zootecnia
Universidade de São Paulo
http://lapcom-usp.blogspot.com/p/quem-somos.html
Email: katia.groch@usp.br
Cel: (11) 98440-7442