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Chapter Nineteen - Ecology of a marine ectoparasite in farmed and wild salmon

from Part III - Understanding wildlife disease ecology at the community and landscape level

Published online by Cambridge University Press:  28 October 2019

By
Stephanie J. Peacock ,
Andrew W. Bateman ,
Brendan Connors ,
Sean Godwin ,
Mark A. Lewis  and
Martin Krkošek
Edited by
Kenneth Wilson ,
Andy Fenton  and
Dan Tompkins
Kenneth Wilson
Affiliation:
Lancaster University
Andy Fenton
Affiliation:
University of Liverpool
Dan Tompkins
Affiliation:
Predator Free 2050 Ltd
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Summary

Parasitism can affect every aspect of wildlife ecology, from predator avoidance and competition for food to migrations and reproduction. In the wild, these ecological effects can have implications for host fitness and parasite dynamics. In contrast, domestic environments are typically characterised by high host densities, low host diversity, and veterinary interventions, and are not subject to processes like predation, competition, and migration. When wild and domesticated hosts interact via shared parasite populations, understanding and predicting the outcomes of parasite ecology and evolution for wildlife conservation and sustainable farming can be a challenge. We describe the ecology and evolution of ectoparasitic sea lice that are shared by farmed and wild salmon and the insights that experiments, fieldwork, and mathematical modelling have generated for theory and applied problems of host–parasite interactions over the course of a long-term study in Pacific Canada. The salmon–sea lice host–parasite system provides a rich case study to examine the ecological context of host–parasite interactions and to shed light on the principal challenges of parasite management for wildlife health and conservation.

Keywords

sea licefisheries managementOncorhynchusLepeophtheirus salmonisCaligus clemensispilloverspillbackindirect effects
Type
Chapter
Information
Wildlife Disease Ecology
Linking Theory to Data and Application
 , pp. 544 - 573
Publisher: Cambridge University Press
Print publication year: 2019

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