{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,2,21]],"date-time":"2025-02-21T08:24:18Z","timestamp":1740126258855,"version":"3.37.3"},"reference-count":37,"publisher":"Wiley","issue":"3","license":[{"start":{"date-parts":[[2017,3,2]],"date-time":"2017-03-02T00:00:00Z","timestamp":1488412800000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Journal of Animal Ecology"],"published-print":{"date-parts":[[2017,5]]},"abstract":"<jats:title>Summary<\/jats:title><jats:p>\n<jats:list>\n\n<jats:list-item><jats:p>Parasites residing within the central nervous system of their hosts have the potential to reduce various components of host performance, but such effects are rarely evaluated.<\/jats:p><\/jats:list-item>\n\n<jats:list-item><jats:p>We assessed the olfactory acuity of fathead minnows (<jats:italic><jats:styled-content style=\"fixed-case\">P<\/jats:styled-content>imephales promelas<\/jats:italic>) infected experimentally with the monogenean <jats:italic><jats:styled-content style=\"fixed-case\">D<\/jats:styled-content>actylogyrus olfactorius<\/jats:italic>, the adults of which live within the host's olfactory chambers.<\/jats:p><\/jats:list-item>\n\n<jats:list-item><jats:p>Olfactory acuity was compared between infected and uninfected hosts by assessing electro\u2010olfactography (<jats:styled-content style=\"fixed-case\">EOG<\/jats:styled-content>) neural responses to chemical stimuli that indicate the presence of food (L\u2010alanine) or the presence of conspecifics (taurocholic acid). We also compared differences in gross morphology of the olfactory epithelium in infected and uninfected minnows.<\/jats:p><\/jats:list-item>\n\n<jats:list-item><jats:p>Differences in <jats:styled-content style=\"fixed-case\">EOG<\/jats:styled-content> responses between infected and uninfected minnows to both cue types were non\u2010significant at 30\u00a0days post\u2010exposure. By days 60 and 90, coincident with a two times increase in parasite intensity in the olfactory chambers, the <jats:styled-content style=\"fixed-case\">EOG<\/jats:styled-content> responses of infected minnows were 70\u201390% lower than controls. When infected fish were treated with a parasiticide (Prazipro), olfactory acuity returned to control levels by day 7 post\u2010treatment.<\/jats:p><\/jats:list-item>\n\n<jats:list-item><jats:p>The observed reduction in olfactory acuity is best explained by the reduced density of cilia covering the olfactory chambers of infected fish, or by the concomitant increase in the density of mucous cells that cover the olfactory chambers. These morphological changes are likely due to the direct effects of attachment and feeding by individual worms or by indirect effects associated with host responses. Our results show that infection of a commonly occurring monogenean in fathead minnows reduces olfactory acuity. Parasite\u2010induced interference with olfactory performance may reduce a fish's ability to detect, or respond to, chemical cues originating from food, predators, competitors or mates.<\/jats:p><\/jats:list-item>\n<\/jats:list>\n<\/jats:p>","DOI":"10.1111\/1365-2656.12642","type":"journal-article","created":{"date-parts":[[2017,1,27]],"date-time":"2017-01-27T04:37:11Z","timestamp":1485491831000},"page":"434-441","source":"Crossref","is-referenced-by-count":1,"title":["Parasites and a host's sense of smell: reduced chemosensory performance of fathead minnows (<i><scp>P<\/scp>imephales promelas<\/i>) infected with a monogenean parasite"],"prefix":"10.1111","volume":"86","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-3623-877X","authenticated-orcid":false,"given":"Ebrahim","family":"Lari","sequence":"first","affiliation":[{"name":"Department of Biological Sciences University of Lethbridge Lethbridge AB T1K 3M4 Canada"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Cameron P.","family":"Goater","sequence":"additional","affiliation":[{"name":"Department of Biological Sciences University of Lethbridge Lethbridge AB T1K 3M4 Canada"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"David K.","family":"Cone","sequence":"additional","affiliation":[{"name":"83 Rhodenizer Lake Rd. 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