Parasite-induced Host Mortality: Indirect Evidence From a Long-term Study

  title={Parasite-induced Host Mortality: Indirect Evidence From a Long-term Study},
  author={Rune Knudsen and P. Amundsen and Anders Klemetsen},
  journal={Environmental Biology of Fishes},
A long-term field study of a perturbed host–helminth system provides indirect evidence that a long-lived swimbladder nematode, Cystidicola farionis, induces mortality of Arctic charr, Salvelinus alpinus. The prevalence and abundance of this parasite has changed little over the period from 1987 to 1999. The cumulative numbers of L3-stage larvae steadily increased with increasing host age, indicating a continuous exposure to infection throughout the life of the target fish host. Indirect methods… CONTINUE READING