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Title: The Effect of Salinity on Egg Development and Viability of Schistocephalus solidus (Cestoda: Diphyllobothriidea)
Authors: Simmonds, Natalie E.
Barber, Iain
First Published: Feb-2016
Publisher: American Society of Parasitologists
Citation: Journal of Parasitology, 2016, 102 (1), pp. 42-46
Abstract: Schistocephalus solidus plerocercoids commonly infect three-spined stickleback Gasterosteus aculeatus populations in brackish and freshwaters, but infections are typically absent from marine populations. Here we provide an experimental test of the salinity tolerance of S. solidus eggs, to determine the role of salinity in limiting the distribution of infection in coastal zones. We find that S. solidus eggs, derived from the in vitro culture of 3 different plerocercoids, developed normally in salinities of up to 12.5‰, but above this egg viability dropped rapidly, and no egg hatching was observed at salinities above 20‰. Our results are consistent with the distribution of infections in natural stickleback populations and add resolution to previous descriptive observations on salinity tolerance in S. solidus . They also demonstrate that S. solidus presents a novel disease challenge to marine populations of three-spined sticklebacks entering brackish and freshwater environments.
DOI Link: 10.1645/14-701
ISSN: 0022-3395
eISSN: 1937-2345
Version: Post-print
Status: Peer-reviewed
Type: Journal Article
Rights: Copyright © American Society of Parasitologists 2016. Deposited with reference to the publisher’s archiving policy available on the SHERPA/RoMEO website.
Appears in Collections:Published Articles, Dept. of Neuroscience, Psychology and Behaviour

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