Skin diseases in Guiana dolphins (Sotalia guianensis) from the Paranagua estuary, Brazil: A possible indicator of a compromised marine environment
Loading...
Files
External sources
External sources
Date
Advisor
Coadvisor
Graduate program
Undergraduate course
Journal Title
Journal ISSN
Volume Title
Publisher
Elsevier B.V.
Type
Article
Access right
Acesso restrito
Files
External sources
External sources
Abstract
We report on the presence of lobomycosis-like disease (LLD) and nodular skin disease (NSD) in a community of Guiana dolphins (Sotalia guianensis) inhabiting the biologically and chemically contaminated Paranagua estuary (Brazil) and on their absence in the community living in the cleaner Cananeia estuary. Prevalence rates of LLD and NSD were 3.9% and 12.6%, respectively, in 103 photo-identified (PI) dolphins from the Paranagua estuary in the period 2006-2007. Adults and calves were affected. Lobomycosis-like lesions may be extensive and form large plaques. Skin nodules were sometimes ulcerated and associated with cutaneous traumas suggesting that traumatic injuries may play a role in the pathogenesis of this condition, In two adult dolphins, NSD evoked the beginning of LLD. In 1996-2007 none of he 200 PI Cananeia S, guianensis had LLD or NSD, a highly significant difference. Interestingly, these dolphins were reported to harbour relatively low concentrations of organochlorines. LLD and NSD are possibly indicators or environmental changes. (C) 2008 Elsevier Ltd. All rights reserved.
Description
Keywords
Diseases, Lobomycosis-like disease, Nodules, Skin, Pollution, Sotalia guianensis, Lagamar estuary, Coastal waters, Brazil
Language
English
Citation
Marine Environmental Research. Oxford: Elsevier B.V., v. 67, n. 2, p. 63-68, 2009.
