The occurrence of Echinorhynchus salmonis Müller, 1784 in benthic amphipods in the Baltic Sea
Benesh, D., Aura, R.-L., Andersin, A.-B., & Valtonen, T. (2015). The occurrence of Echinorhynchus salmonis Müller, 1784 in benthic amphipods in the Baltic Sea. Folia Parasitologica, 62, Article 052. https://doi.org/10.14411/fp.2015.052
Published inFolia Parasitologica
© 2011 the Authors. Published by Akademie Ved Ceske Republiky. This is an Open Access article distributed under the terms of the Creative Commons Attribution License.
Abstract: The acanthocephalan Echinorhynchus salmonis Müller, 1784 is a common parasite of salmonid fish, but it has rarely been reported from an intermediate host. Samples of benthic amphipods, Monoporeia affinis (Lindström), were taken from multiple, deep sites (usually below 70 m) in the Gulf of Bothnia over the course of more than a decade and examined for acanthocephalans. Overall, only 0.44% of 23 296 amphipods were infected, all with just a single worm. This prevalence is consistent with several previous reports of acanthocephalans in deep-water, benthic amphipods, but it appears low compared to that often reported for acanthocephalan species infecting littoral amphipods. Parasite occurrence did not exhibit a clear regional pattern (i.e. northern vs southern sites) nor did it have any relationship with site depth. At sites sampled over multiple years, parasite abundance was consistently low (mostly <0.01), though two spikes in abundance (over 0.06) were also observed, indicating that infection can be substantially higher at particular times or in particular places. The median density of E. salmonis in samples containing the parasite was estimated as 8.4 cystacanths per m2. ...
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Except where otherwise noted, this item's license is described as © 2011 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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