Diseases, lesions and malformations in the long-beaked common dolphin Delphinus capensis from the Southeast Pacific.
Links Diseases, lesions and malformations in the long-beaked common dolphin Delphinus capensis from the Southeast Pacific. Van Bressem MF, Van Waerebeek K, Montes D, Kennedy S, Reyes JC, Garcia-Godos IA, Onton-Silva K, Alfaro-Shigueto JDis Aquat Organ. 2006 Jan 30;68(2):149-65. Links Diseases, lesions and malformations in the long-beaked common dolphin Delphinus capensis from the Southeast Pacific. Van Bressem MF, Van Waerebeek K, Montes D, Kennedy S, Reyes JC, Garcia-Godos IA, Onton-Silva K, Alfaro-Shigueto J. Peruvian Centre for Cetacean Research (CEPEC), Museo de Delfines, Pucusana, Lima 20, Peru. marievanbressem@yahoo.co.uk Miscellaneous lesions of the head, skull, teeth, trunk, appendages, skin and genital tract were observed in 120 of 930 long-beaked common dolphins Delphinus capensis taken in fisheries off Peru between 1985 and 2000. Seven subsamples were defined according to the varying field sampling protocols. Forty-two dolphins showed at least 2 types of injuries or diseases affecting 1 or more organs. The majority (5 of 7) of traumas encountered were diagnosed as caused by violent, fisheries-related interactions, and the skin in 20.4 % of specimens (n = 54) showed healed scars from such interactions. Prevalences of malformations and traumas of crania (n = 103) were 2.9 and 1.9%, respectively. Lytic cranial lesions were present in 31.1% of dolphins (n = 103) and accounted for 84.2% of all bone injuries. Skull damage diagnostic for Crassicauda sp. infestation was encountered in 26.5% of dolphins (n = 98) and did not differ among sex and age classes. Crassicauda sp. and tooth infections were responsible for, respectively, 78.8 and 6.1% of the lytic lesions. Adult dolphins showed a high prevalence of worn and broken teeth (35%, n = 20) as well as damaged alveoli (20%, n = 70). Prevalence of 'paired teeth', a congenital condition, was 9.4% (n = 32). Lesions of the head, body and appendages were present in 10 dolphins and included traumas, deformations (e.g. scoliokyphosis and brachygnathia) and chronic mastitis. Ovarian cysts suggestive of follicular cysts were observed in 1 of 24 females. Chronic orchitis affected 1 of 78 males. Of 12 dolphins 2 had vesicular lesions of the penis. Prevalence of cutaneous lesions, abnormalities and scars ranged between 1.8% (n = 56) and 48.2% (n = 27). PMID: 16532606 [PubMed - indexed for MEDLINE] Related Links Genital diseases in the peruvian dusky dolphin (Lagenorhynchus obscurus). [J Comp Pathol. 2000] PMID: 10805980 An insight into the epidemiology of dolphin morbillivirus worldwide. [Vet Microbiol. 2001] PMID: 11390111 Serological evidence of morbillivirus infection in small cetaceans from the Southeast Pacific. [Vet Microbiol. 1998] PMID: 9549850 Phylogeography and alpha taxonomy of the common dolphin (Delphinus sp.). [J Evol Biol. 2006] PMID: 16674590 Morbillivirus infection in stranded common dolphins from the Pacific Ocean. [J Wildl Dis. 1998] PMID: 9813847 See all Related Articles... Display Summary Brief Abstract AbstractPlus Citation MEDLINE XML UI List LinkOut ASN.1 Related Articles Cited Articles Cited in Books CancerChrom Links Domain Links 3D Domain Links GEO DataSet Links Gene Links Gene (GeneRIF) Links Genome Links Project Links GENSAT Links GEO Profile Links HomoloGene Links Nucleotide Links Nucleotide (RefSeq) Links OMIA Links OMIM (calculated) Links OMIM (cited) Links BioAssay Links Compound Links Compound via MeSH Substance Links Substance via MeSH PMC Links Cited in PMC PopSet Links Probe Links Protein Links Protein (RefSeq) Links SNP Links Structure Links Taxonomy via GenBank UniGene Links UniSTS Links Show 5 10 20 50 100 200 500 Sort by Pub Date First Author Last Author Journal Send to Text File Printer Clipboard E-mail Order .
Peruvian Centre for Cetacean Research (CEPEC), Museo de Delfines, Pucusana, Lima 20, Peru. marievanbressem@yahoo.co.uk
Miscellaneous lesions of the head, skull, teeth, trunk, appendages, skin and genital tract were observed in 120 of 930 long-beaked common dolphins Delphinus capensis taken in fisheries off Peru between 1985 and 2000. Seven subsamples were defined according to the varying field sampling protocols. Forty-two dolphins showed at least 2 types of injuries or diseases affecting 1 or more organs. The majority (5 of 7) of traumas encountered were diagnosed as caused by violent, fisheries-related interactions, and the skin in 20.4 % of specimens (n = 54) showed healed scars from such interactions. Prevalences of malformations and traumas of crania (n = 103) were 2.9 and 1.9%, respectively. Lytic cranial lesions were present in 31.1% of dolphins (n = 103) and accounted for 84.2% of all bone injuries. Skull damage diagnostic for Crassicauda sp. infestation was encountered in 26.5% of dolphins (n = 98) and did not differ among sex and age classes. Crassicauda sp. and tooth infections were responsible for, respectively, 78.8 and 6.1% of the lytic lesions. Adult dolphins showed a high prevalence of worn and broken teeth (35%, n = 20) as well as damaged alveoli (20%, n = 70). Prevalence of 'paired teeth', a congenital condition, was 9.4% (n = 32). Lesions of the head, body and appendages were present in 10 dolphins and included traumas, deformations (e.g. scoliokyphosis and brachygnathia) and chronic mastitis. Ovarian cysts suggestive of follicular cysts were observed in 1 of 24 females. Chronic orchitis affected 1 of 78 males. Of 12 dolphins 2 had vesicular lesions of the penis. Prevalence of cutaneous lesions, abnormalities and scars ranged between 1.8% (n = 56) and 48.2% (n = 27).
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