Variation in parasite resistance of Arctic charr, Salvelinus alpinus, between and within sympatric morphs

Anssi Karvonen, Samantha Beck, Skúli Skúlason, Bjarni Kristjánsson & Camille Leblanc
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 poorly known. We explored if differences in natural infection pressure between resource-based morphs of Arctic charr (Salvelinus alpinus) has resulted in differentiation in resistance profiles. We experimentally exposed offspring of two morphs from Lake Þingvallavatn (Iceland), the pelagic planktivorous charr (‘murta’) and the large benthivorous charr (‘kuðungableikja’), to...
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2 downloads reported since publication in 2021.

These counts follow the COUNTER Code of Practice, meaning that Internet robots and repeats within a certain time frame are excluded.
What does this mean?