Bold, Sedentary Fathead Minnows Have More Parasites

Tiffany Pan, Kelsey Gladen, Elizabeth C. Duncan, Sehoya H Cotner, James B Cotner, Daniel C. McEwen, Brian D. Wisenden

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

Parasites that rely on trophic transmission can manipulate the behavior of an intermediate host to compromise the host's antipredator competence and increase the probability of reaching the next host. Selection for parasite manipulation is diminished when there is significant risk of host death to causes other than consumption by a suitable definitive host for the parasite. Consequently, behavioral manipulation by parasites can be expected to be subtle. Ornithodiplostomum ptychocheilus (Op) is a trematode parasite that has a bird-snail-fish host life cycle. Fathead minnows are a common intermediate host of Op, where metacercariae encyst in the minnow brain. In this study, we report a link between metacercarial intensity and behavior in fathead minnows. In the field, we found that roaming distance by free-living minnows over 24 h was negatively correlated with parasite intensity. In the laboratory, we found that boldness in an open field test was positively correlated with parasite intensity. These parasite-induced behavioral changes may render infected minnows more susceptible to predators, which would serve to facilitate trophic transmission of parasites to the bird host.

Original languageEnglish (US)
Pages (from-to)248-255
Number of pages8
JournalZebrafish
Volume13
Issue number4
DOIs
StatePublished - Aug 1 2016

Fingerprint

Pimephales promelas
Cyprinidae
Parasites
parasites
minnows
intermediate hosts
Birds
Metacercariae
Behavior Control
metacercariae
birds
Snails
Life Cycle Stages
Trematoda
Mental Competency
snails
Cause of Death
life cycle (organisms)
Fishes
death

Cite this

Pan, T., Gladen, K., Duncan, E. C., Cotner, S. H., Cotner, J. B., McEwen, D. C., & Wisenden, B. D. (2016). Bold, Sedentary Fathead Minnows Have More Parasites. Zebrafish, 13(4), 248-255. https://doi.org/10.1089/zeb.2015.1185

Bold, Sedentary Fathead Minnows Have More Parasites. / Pan, Tiffany; Gladen, Kelsey; Duncan, Elizabeth C.; Cotner, Sehoya H; Cotner, James B; McEwen, Daniel C.; Wisenden, Brian D.

In: Zebrafish, Vol. 13, No. 4, 01.08.2016, p. 248-255.

Research output: Contribution to journalArticle

Pan, T, Gladen, K, Duncan, EC, Cotner, SH, Cotner, JB, McEwen, DC & Wisenden, BD 2016, 'Bold, Sedentary Fathead Minnows Have More Parasites' Zebrafish, vol. 13, no. 4, pp. 248-255. https://doi.org/10.1089/zeb.2015.1185
Pan, Tiffany ; Gladen, Kelsey ; Duncan, Elizabeth C. ; Cotner, Sehoya H ; Cotner, James B ; McEwen, Daniel C. ; Wisenden, Brian D. / Bold, Sedentary Fathead Minnows Have More Parasites. In: Zebrafish. 2016 ; Vol. 13, No. 4. pp. 248-255.
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