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- W629136448 endingPage "e0128674" @default.
- W629136448 startingPage "e0128674" @default.
- W629136448 abstract "A common signature of marine invasions worldwide is a significant loss of parasites (= parasite escape) in non-native host populations, which may confer a release from some of the harmful effects of parasitism (e.g., castration, energy extraction, immune activation, behavioral manipulation) and possibly enhance the success of non-indigenous species. In eastern North America, the notorious invader Carcinus maenas (European green crab) has escaped more than two-thirds its native parasite load. However, one of its parasites, a trematode (Microphallus similis), can be highly prevalent in the non-native region; yet little is known about its potential impacts. We employed a series of laboratory experiments to determine whether and how M. similis infection intensity influences C. maenas, focusing on physiological assays of body mass index, energy storage, and immune activation, as well as behavioral analyses of foraging, shelter utilization, and conspicuousness. We found little evidence for enduring physiological or behavioral impacts four weeks after experimental infection, with the exception of mussel handling time which positively correlated with cyst intensity. However, we did find evidence for a short-term effect of M. similis infection during early stages of infection (soon after cercarial penetration) via a significant drop in circulating immune cells, and a significant increase in the crabs' righting response time. Considering M. similis is the only common parasite infecting C. maenas in eastern North America, our results for minimal lasting effects of the trematode on the crab's physiology and behavior may help explain the crab's continued prominence as a strong predator and competitor in the region." @default.
- W629136448 created "2016-06-24" @default.
- W629136448 creator A5016921739 @default.
- W629136448 creator A5021831043 @default.
- W629136448 creator A5076433881 @default.
- W629136448 creator A5091297798 @default.
- W629136448 date "2015-06-01" @default.
- W629136448 modified "2023-09-27" @default.
- W629136448 title "Assessing the Effects of Trematode Infection on Invasive Green Crabs in Eastern North America" @default.
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- W629136448 doi "https://doi.org/10.1371/journal.pone.0128674" @default.