The natural history of Echinorhynchus bothniensis Zdzitowiecki and Valtonen, 1987 (Acanthocephala) in a high Arctic lake
Aura, R.-L., Benesh, D., Palomäki, R., & Valtonen, T. (2015). The natural history of Echinorhynchus bothniensis Zdzitowiecki and Valtonen, 1987 (Acanthocephala) in a high Arctic lake. Folia Parasitologica, 62, Article 051. https://doi.org/10.14411/fp.2015.051
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Folia ParasitologicaDate
2015Discipline
Ekologia ja evoluutiobiologiaAkvaattiset tieteetEcology and Evolutionary BiologyAquatic SciencesCopyright
© 2015 the Authors. Published by Akademie Ved Ceske Republiky. This is an Open Access article distributed under the terms of the Creative Commons Attribution License.
The acanthocephalan Echinorhynchus bothniensis Zdzitowiecki and Valtonen, 1987 differs from most other species in the
genus Echinorhynchus Zoega in Müller, 1776 by infecting mysids (order Mysida) instead of amphipods (order Amphipoda) as intermediate
hosts. Here we report on the occurrence of E. bothniensis in mysids (Mysis segerstralei Audzijonytė et Väinölä) and in its fish
definitive hosts in a high Arctic lake. Out of 15907 sampled mysids, 4.8% were infected with a mean intensity of 1.05 worms (range
1–5), although there was notable variation between samples taken in different years and sites. Larger mysids appear more likely to be
infected. Of five fish species sampled, charr,Salvelinus alpinus (Linnaeus), and a benthic-feeding whitefish morph, Coregonus lavaretus
(Linnaeus), were the most heavily infected (mean abundances of 80 and 15, respectively). The adult parasite population in fish
exhibited a female-biased sex ratio (1.78 : 1). Although E. bothniensis is rather unique in infecting mysids, many aspects of its natural
history mirror that of other acanthocephalan species.
...
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Except where otherwise noted, this item's license is described as © 2015 the Authors. Published by Akademie Ved Ceske Republiky. This is an Open Access article distributed under the terms of the Creative Commons Attribution License.
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