Evidence of Poxvirus in Dusky Dolphin (Lagenorhynchus obscurus) and Burmeister's Porpoise (Phocoena spinipinnis) from Coastal Peru

Bressem, Marie‐Françoise Van; Waerebeek, Koen Van; Reyes, Julio C.; Dekegel, D.; Pastoret, Paul-Pierre

doi:10.7589/0090-3558-29.1.109

Cited by 51 publications

(57 citation statements)

References 6 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Poxvirus has been well documented in seals and sea lions (Wilson et al 1969;Wilson et al 1972;Becher et al 2002;Muller et al 2003), which occupy the same coastal areas as bottlenose dolphins in California, and is known to occur in cetaceans (Flom and Hoek 1979;Geraci et al 1979;Van Bressem et al 1993Brownell et al 2007). The coastal environment in California, and in Monterey Bay in particular, is of concern because of high contaminant loads and general levels of pollutants (Hartwell 2008).…”

Section: Discussionmentioning

confidence: 99%

“…True pox lesions may be indicative of environmental stress and/or generally poor health (Geraci et al 1979), but may not affect overall survival (Sweeney and Ridgway 1975;Geraci et al 1979;Van Bressem et al 1993;Van Bressem and Van Waerebeek 1996). Van Bressem et al (1993) suggested calves may be protected from poxvirus through maternal immunity. However, at least 43% of calves in our study presented the condition and started showing signs during their second or third year.…”

Section: Discussionmentioning

confidence: 99%

“…Epidermal diseases are well documented in many cetacean species (Simpson et al 1958;Greenwood et al 1974;Smith et al 1983;Van Bressem et al 1993;Dierauf and Gulland 2001;Pettis et al 2004;Brownell et al 2007). The pathogens involved are varied and generally include viruses, bacteria, fungi and, occasionally, ciliated protozoans, many naturally occurring in the marine environment (Van Bressem et al 2007).…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Prevalence of Epidermal Conditions in California Coastal Bottlenose Dolphins (Tursiops truncatus) in Monterey Bay

Maldini¹,

Riggin

Cecchetti³

et al. 2010

AMBIO

View full text Add to dashboard Cite

The prevalence of epidermal conditions in a small population of coastal bottlenose dolphins (Tursiops truncatus) in Monterey Bay was evaluated between 2006 and 2008. Five different skin condition categories were considered, including Pox-Like Lesions, Discoloration, Orange Film, Polygon Lesions, and Miscellaneous Markings. Of 147 adults and 42 calves photographically examined, at least 90 and 71%, respectively, were affected by at least one or multiple conditions. Pox-Like Lesions were the most prevalent, affecting 80% of the population, including adults and calves. This condition warrants the most urgent investigation being possibly indicative of the widespread presence of poxvirus or a similar pathogen in the population. In view of the high number of individuals affected, standard monitoring of the health status of Monterey Bay bottlenose dolphins is considered imperative. Discoloration was strongly associated with Pox-Like lesions. Orange Films were likely an epifaunal infestation caused by diatoms, which have been documented in other cetacean species. Polygon Lesions, a newly described category, could be the result of infestation by barnacles of the genus Cryptolepas. Miscellaneous Markings were variable in appearance and may not have the same causative factor. Although none of the proposed etiologies can be confirmed without appropriate clinical tests, recognizing common visible characteristics of the conditions could aid in preliminary comparisons across populations and individuals.

show abstract

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Prevalence of Epidermal Conditions in California Coastal Bottlenose Dolphins (Tursiops truncatus) in Monterey Bay

Maldini¹,

Riggin

Cecchetti³

et al. 2010

AMBIO

View full text Add to dashboard Cite

show abstract

“…Epidermal disease in cetaceans is well-documented but studies of those in wild animals have all been restricted to either dead individuals (Geraci 1989;Baker 1992) or to individuals from localized populations (Thompson & Hammond 1992;Van Bressem et al 1993Harzen & Brunnick 1997;Wilson et al 1997a). In most of these studies, the authors have suggested that anthropogenic contaminants may play a contributory role in the formation of the epidermal lesions observed.…”

Section: Discussionmentioning

confidence: 99%

“…Cetaceans have no fur, so epidermal diseases are often highly visible and, consequently, are one of the most commonly reported categories of disease in these animals (Geraci et al 1979;Geraci 1989;Baker 1992;Van Bressem et al 1993Bloom & Jager 1994). Furthermore, because of their visibility, their appearance, prevalence and severity can be remotely documented using photographs of the animals taken at sea (Thompson & Hammond 1992).…”

Section: Introductionmentioning

confidence: 99%

Epidermal diseases in bottlenose dolphins: impacts of natural and anthropogenic factors

Wilson

Arnold

Bearzi

et al. 1999

Proc. R. Soc. Lond. B

110

View full text Add to dashboard Cite

Experimental studies have highlighted the potential in£uence of contaminants on marine mammal immune function and anthropogenic contaminants are commonly believed to in£uence the development of diseases observed in the wild. However, estimates of the impact of contaminants on wild populations are constrained by uncertainty over natural variation in disease patterns under di¡erent environmental conditions. We used photographic techniques to compare levels of epidermal disease in ten coastal populations of bottlenose dolphins (Tursiops truncatus) exposed to a wide range of natural and anthropogenic conditions. Epidermal lesions were common in all populations (a¡ecting 460% of individuals), but both the prevalence and severity of 15 lesion categories varied between populations. No relationships were found between epidermal disease and contaminant levels across the four populations for which toxicological data were available. In contrast, there were highly signi¢cant linear relationships with oceanographic variables. In particular, populations from areas of low water temperature and low salinity exhibited higher lesion prevalence and severity. Such conditions may impact on epidermal integrity or produce more general physiological stress, potentially making animals more vulnerable to natural infections or anthropogenic factors. These results show that variations in natural environmental factors must be accounted for when investigating the importance of anthropogenic impacts on disease in wild marine mammals.

show abstract

Viruses of Marine Mammals

Fereidouni

2021

Studies in Viral Ecology

View full text Add to dashboard Cite

Evidence of Poxvirus in Dusky Dolphin (Lagenorhynchus obscurus) and Burmeister's Porpoise (Phocoena spinipinnis) from Coastal Peru

Abstract: ABSTRACT:In 1990, 74 dusky dolphins (Lagenorhynchus obscurus)

Cited by 51 publications

References 6 publications

Prevalence of Epidermal Conditions in California Coastal Bottlenose Dolphins (Tursiops truncatus) in Monterey Bay

Prevalence of Epidermal Conditions in California Coastal Bottlenose Dolphins (Tursiops truncatus) in Monterey Bay

Epidermal diseases in bottlenose dolphins: impacts of natural and anthropogenic factors

Viruses of Marine Mammals

Contact Info

Product

Resources

About