Journal article

Identifying 'firebreaks' to fragment dispersal networks of a marine parasite

Francisca Samsing, Ingrid Johnsen, Eric A Treml, Tim Dempster

INTERNATIONAL JOURNAL FOR PARASITOLOGY | ELSEVIER SCI LTD | Published : 2019

Abstract

Marine ecosystems are beset by disease outbreaks, and efficient strategies to control dispersal of pathogens are scarce. We tested whether introducing no-farming areas or 'firebreaks' could disconnect dispersal networks of a parasitic disease affecting the world's largest marine fish farming industry (∼1000 farms). Larval salmon lice (Lepeophtheirus salmonis) are released from and transported among salmon farms by ocean currents, creating inter-farm networks of louse dispersal. We used a state-of-the-art biophysical model to predict louse movement along the Norwegian coastline and network analysis to identify firebreaks to dispersal. At least one firebreak that fragmented the network into tw..

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Grants

Awarded by Research Council of Norway through the Havbruk program


Funding Acknowledgements

Funding was provided by the Research Council of Norway through the Havbruk program to project #244439 "Regional lice assessment - towards a model based management system" to FO and TD, an Australian Research Council Future Fellowship to TD, and an Australian Postgraduate Training Research Scholarship (IPRS) to FS.