Modelling the impact of temperature-induced life history plasticity and mate limitation on the epidemic potential of a marine ectoparasite.

Temperature is hypothesized to contribute to increased pathogenicity and virulence of many marine diseases. The sea louse (Lepeophtheirus salmonis) is an ectoparasite of salmonids that exhibits strong life-history plasticity in response to temperature; however, the effect of temperature on the epide...

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Autores principales:	Maya L Groner, George Gettinby, Marit Stormoen, Crawford W Revie, Ruth Cox
Formato:	article
Lenguaje:	EN
Publicado:	Public Library of Science (PLoS) 2014
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/71febb2489124a4cae0b9c70e7857ed4
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spelling	oai:doaj.org-article:71febb2489124a4cae0b9c70e7857ed42021-11-18T08:33:32ZModelling the impact of temperature-induced life history plasticity and mate limitation on the epidemic potential of a marine ectoparasite.1932-620310.1371/journal.pone.0088465https://doaj.org/article/71febb2489124a4cae0b9c70e7857ed42014-01-01T00:00:00Zhttps://www.ncbi.nlm.nih.gov/pmc/articles/pmid/24505493/?tool=EBIhttps://doaj.org/toc/1932-6203Temperature is hypothesized to contribute to increased pathogenicity and virulence of many marine diseases. The sea louse (Lepeophtheirus salmonis) is an ectoparasite of salmonids that exhibits strong life-history plasticity in response to temperature; however, the effect of temperature on the epidemiology of this parasite has not been rigorously examined. We used matrix population modelling to examine the influence of temperature on demographic parameters of sea lice parasitizing farmed salmon. Demographically-stochastic population projection matrices were created using parameters from the existing literature on vital rates of sea lice at different fixed temperatures and yearly temperature profiles. In addition, we quantified the effectiveness of a single stage-specific control applied at different times during a year with seasonal temperature changes. We found that the epidemic potential of sea lice increased with temperature due to a decrease in generation time and an increase in the net reproductive rate. In addition, mate limitation constrained population growth more at low temperatures than at high temperatures. Our model predicts that control measures targeting preadults and chalimus are most effective regardless of the temperature. The predictions from this model suggest that temperature can dramatically change vital rates of sea lice and can increase population growth. The results of this study suggest that sea surface temperatures should be considered when choosing salmon farm sites and designing management plans to control sea louse infestations. More broadly, this study demonstrates the utility of matrix population modelling for epidemiological studies.Maya L GronerGeorge GettinbyMarit StormoenCrawford W RevieRuth CoxPublic Library of Science (PLoS)articleMedicineRScienceQENPLoS ONE, Vol 9, Iss 2, p e88465 (2014)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Maya L Groner George Gettinby Marit Stormoen Crawford W Revie Ruth Cox Modelling the impact of temperature-induced life history plasticity and mate limitation on the epidemic potential of a marine ectoparasite.
description	Temperature is hypothesized to contribute to increased pathogenicity and virulence of many marine diseases. The sea louse (Lepeophtheirus salmonis) is an ectoparasite of salmonids that exhibits strong life-history plasticity in response to temperature; however, the effect of temperature on the epidemiology of this parasite has not been rigorously examined. We used matrix population modelling to examine the influence of temperature on demographic parameters of sea lice parasitizing farmed salmon. Demographically-stochastic population projection matrices were created using parameters from the existing literature on vital rates of sea lice at different fixed temperatures and yearly temperature profiles. In addition, we quantified the effectiveness of a single stage-specific control applied at different times during a year with seasonal temperature changes. We found that the epidemic potential of sea lice increased with temperature due to a decrease in generation time and an increase in the net reproductive rate. In addition, mate limitation constrained population growth more at low temperatures than at high temperatures. Our model predicts that control measures targeting preadults and chalimus are most effective regardless of the temperature. The predictions from this model suggest that temperature can dramatically change vital rates of sea lice and can increase population growth. The results of this study suggest that sea surface temperatures should be considered when choosing salmon farm sites and designing management plans to control sea louse infestations. More broadly, this study demonstrates the utility of matrix population modelling for epidemiological studies.
format	article
author	Maya L Groner George Gettinby Marit Stormoen Crawford W Revie Ruth Cox
author_facet	Maya L Groner George Gettinby Marit Stormoen Crawford W Revie Ruth Cox
author_sort	Maya L Groner
title	Modelling the impact of temperature-induced life history plasticity and mate limitation on the epidemic potential of a marine ectoparasite.
title_short	Modelling the impact of temperature-induced life history plasticity and mate limitation on the epidemic potential of a marine ectoparasite.
title_full	Modelling the impact of temperature-induced life history plasticity and mate limitation on the epidemic potential of a marine ectoparasite.
title_fullStr	Modelling the impact of temperature-induced life history plasticity and mate limitation on the epidemic potential of a marine ectoparasite.
title_full_unstemmed	Modelling the impact of temperature-induced life history plasticity and mate limitation on the epidemic potential of a marine ectoparasite.
title_sort	modelling the impact of temperature-induced life history plasticity and mate limitation on the epidemic potential of a marine ectoparasite.
publisher	Public Library of Science (PLoS)
publishDate	2014
url	https://doaj.org/article/71febb2489124a4cae0b9c70e7857ed4
work_keys_str_mv	AT mayalgroner modellingtheimpactoftemperatureinducedlifehistoryplasticityandmatelimitationontheepidemicpotentialofamarineectoparasite AT georgegettinby modellingtheimpactoftemperatureinducedlifehistoryplasticityandmatelimitationontheepidemicpotentialofamarineectoparasite AT maritstormoen modellingtheimpactoftemperatureinducedlifehistoryplasticityandmatelimitationontheepidemicpotentialofamarineectoparasite AT crawfordwrevie modellingtheimpactoftemperatureinducedlifehistoryplasticityandmatelimitationontheepidemicpotentialofamarineectoparasite AT ruthcox modellingtheimpactoftemperatureinducedlifehistoryplasticityandmatelimitationontheepidemicpotentialofamarineectoparasite
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Modelling the impact of temperature-induced life history plasticity and mate limitation on the epidemic potential of a marine ectoparasite.

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