Antarctophthirus microchir infestation in synanthropic South American sea lion (Otaria flavescens) males diagnosed by a novel non-invasive method.

Authors:
David Ebmer
David Ebmer
Institute of Parasitology
Pamela Munoz
Pamela Munoz
Instituto de Ciencias Marinas y Limnológicas
Mazatlán | Mexico
Anja Taubert
Anja Taubert
Institute of Parasitology
Germany
Carlos Hermosilla
Carlos Hermosilla
Institute of Parasitology
Germany

Parasitol Res 2019 May 14;118(5):1353-1361. Epub 2019 Mar 14.

Institute of Parasitology, Biomedical Research Center Seltersberg (BFS), Justus Liebig University Giessen, Schubertstr. 81, 35392, Giessen, Germany.

Antarctophthirus microchir is a sucking louse species belonging to the family Echinophthiriidae and has been reported to parasitize all species of the subfamily Otariinae, the sea lions. Former studies on this ectoparasite mainly required fixation, immobilization, or death of host species and especially examinations of adult male sea lions are still very rare. Between March and May 2018, adult individuals of a unique "urban" bachelor group of South American sea lions (Otaria flavescens) living directly in the city of Valdivia, Chile, were studied regarding their ectoparasite infestation status. For first time, a non-invasive method in the form of a lice comb screwed on a telescopic rod and grounded with adhesive tape was used for sample taking process. Overall, during combing different stages of A. microchir were detected in 4/5 O. flavescens individuals, especially at the junction between the back and hind flippers. Our findings represent the first report of A. microchir infesting individuals of this synanthropic colony and fulfilling complete life cycle in a sea lion group despite inhabiting freshwater and in absence of females/pups. Our "telescopic lice comb apparatus" offers a new strategy to collect different stages of ectoparasites and a range of epidermal material, such as fur coat hair and superficial skin tissue for a broad spectrum of research fields in wildlife sciences in an unmolested and stress reduced manner.

Download full-text PDF

Source
http://link.springer.com/10.1007/s00436-019-06273-2
Publisher Site
http://dx.doi.org/10.1007/s00436-019-06273-2DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6478641PMC
May 2019
10 Reads

Publication Analysis

Top Keywords

sea lions
12
south american
8
american sea
8
otaria flavescens
8
lice comb
8
non-invasive method
8
sea lion
8
antarctophthirus microchir
8
sea
5
process combing
4
combing stages
4
stages microchir
4
tape sample
4
grounded adhesive
4
adhesive tape
4
microchir detected
4
sample process
4
detected 4/5
4
findings represent
4
flippers findings
4

References

(Supplied by CrossRef)
Article in Parasitology
FJ Aznar et al.
Parasitology 2009
Article in EcoHealth
JM Castellini et al.
EcoHealth 2012
Article in Arch Med Vet
A Crovetto et al.
Arch Med Vet 2008
Article in J Parasitol
M Dailey et al.
J Parasitol 2005
Article in Bull Am Mus Nat Hist
LA Durden et al.
Bull Am Mus Nat Hist 1994
Article in Mar Mammal Sci
NJ Gales et al.
Mar Mammal Sci 2009
Article in Rev Peru Biol
LA Gomez-Puerta et al.
Rev Peru Biol 2015
Article in Int J Parasitol Parasites Wildl
C Hermosilla et al.
Int J Parasitol Parasites Wildl 2015
Article in J Vet Med
C Hermosilla et al.
J Vet Med 2016
Article in Parasitol Res
C Hermosilla et al.
Parasitol Res 2016
Article in Parasitol Res
C Hermosilla et al.
Parasitol Res 2018

Similar Publications