Maternal effects in vulnerability to eye-parasites and correlations between behavior and parasitism in juvenile Arctic charr
Kortet, R., Lautala, T., Kekäläinen, J., Taskinen, J., & Hirvonen, H. (2017). Maternal effects in vulnerability to eye-parasites and correlations between behavior and parasitism in juvenile Arctic charr. Ecology and Evolution, 7(21), 8780-8787. https://doi.org/10.1002/ece3.3428
Published in
Ecology and EvolutionDate
2017Copyright
© 2017 The Authors. Ecology and Evolution published by John Wiley & Sons Ltd. This is an open access article under the terms of the Creative Commons Attribution License.
Hatchery‐reared fish show high mortalities after release to the wild environment. Explanations for this include potentially predetermined genetics, behavioral, and physiological acclimation to fish farm environments, and increased vulnerability to predation and parasitism in the wild. We studied vulnerability to Diplostomum spp. parasites (load of eye flukes in the lenses), immune defense (relative spleen size) and antipredator behaviors (approaches toward predator odor, freezing, and swimming activity) in hatchery‐reared juvenile Arctic charr (Salvelinus alpinus) using a nested mating design. Fish were exposed to eye‐fluke larvae via the incoming water at the hatchery. Fish size was positively associated with parasite load, but we did not find any relationship between relative spleen size and parasitism. The offspring of different females showed significant variation in their parasite load within sires, implying a dam effect in the vulnerability to parasites. However, the family background did not have any effect on spleen size. In the mean sire level over dams, the fish from the bolder (actively swimming) families in the predator trials suffered higher loads of eye flukes than those from more cautiously behaving families. Thus, the results indicate potentially maternally inherited differences in vulnerability to eye‐fluke parasites, and that the vulnerability to parasites and behavioral activity are positively associated with each other at the sire level. This could lead to artificial and unintentional selection for increased vulnerability to both parasitism and predation if these traits are favored in fish farm environments.
...
![showless](/themes/JYX2//images/showless.png)
![showmore](/themes/JYX2//images/showmore.png)
Publisher
John Wiley & Sons Ltd.ISSN Search the Publication Forum
2045-7758Keywords
Publication in research information system
https://converis.jyu.fi/converis/portal/detail/Publication/27233444
Metadata
Show full item recordCollections
Additional information about funding
Nordic Working Group of Fisheries Research Maj ja Tor Nesslingin Säätiö Helsingin Yliopisto. Suomen Kulttuurirahasto. University of Helsinki Research Funds. Ministry of Agriculture and Forestry of Finland. Academy of Finland. Grant Number: #308485 Nordforsk (SUREAQUA). Nordic Working Group on Fisheries Research.License
Except where otherwise noted, this item's license is described as © 2017 The Authors. Ecology and Evolution published by John Wiley & Sons Ltd. This is an open access article under the terms of the Creative Commons Attribution License.
Related items
Showing items with similar title or keywords.
-
Variation in parasite resistance of Arctic charr, Salvelinus alpinus, between and within sympatric morphs
Karvonen, Anssi; Beck, Samantha V.; Skúlason, Skúli; Kristjánsson, Bjarni K.; Leblanc, Camille A. (Wiley-Blackwell, 2021)Genetic variation in resistance against parasite infections is a predominant feature in host–parasite systems. However, mechanisms maintaining genetic polymorphism in resistance in natural host populations are generally ... -
Parasite transmission in aquatic ecosystems under temperature change : effects of host activity and elimination of parasite larvae by filter-feeders
Gopko, Misha; Mironova, Ekaterina; Pasternak, Anna; Mikheev, Victor; Taskinen, Jouni (Wiley-Blackwell, 2020)A moderate raise in temperature was suggested to enhance the impact of parasites on aquatic ecosystems. Under higher temperatures, poikilothermic animals (e.g. fish) increase their activity, which can result in a more ... -
Interactions between two parasites of brown trout (Salmo trutta) : Consequences of preinfection
Gopko, Mikhail; Chowdhury, Motiur; Taskinen, Jouni (John Wiley & Sons Ltd., 2018)Preinfection by one parasitic species may facilitate or by contrast hamper the subsequent penetration and/or establishment of other parasites in a host. The biology of interacting species, timing of preinfection, and dosage ... -
Effects of fish community composition on ontogenetic niche shifts of Arctic charr (Salvelinus alpinus) and brown trout (Salmo trutta) in subarctic lakes
Kangosjärvi, Henna (2021)Ravintoverkkotutkimukset yhdistävät biodiversiteetin sekä ekosysteemien toiminnan ja tarjoavat täten kokonaisvaltaisemman näkökulman suojelubiologisiin tutkimuksiin. Ravintoverkkotutkimuksissa on tärkeä huomioida generalistien ... -
Allee effect in a manipulative parasite within poikilothermic host under temperature change
Mironova, Ekaterina; Gopko, Mikhail; Pasternak, Anna; Mikheev, Viktor; Taskinen, Jouni (Cambridge University Press (CUP), 2022)Temperature and intraspecific competition are important factors influencing the growth of all organisms, including parasites. The temperature increase is suggested to stimulate the development of parasites within poikilothermic ...