Data for: Ectoparasite population dynamics affected by host body size but not host density or water temperature in a 32-year long time series
Host density, host body size, and ambient temperature have all been positively associated with increases in parasite infection. However, the relative importance of these factors in shaping long-term parasite population dynamics in wild host populations is unknown due to the absence of long-term stud...
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Online Access: | https://doi.org/10.5061/dryad.9w0vt4bk7 |
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ftzenodo:oai:zenodo.org:7344698 2024-09-15T17:52:20+00:00 Data for: Ectoparasite population dynamics affected by host body size but not host density or water temperature in a 32-year long time series Henriksen, Eirik Frainer, Andre Poulin, Robert Knudsen, Rune Per-Arne, Amundsen 2022-11-21 https://doi.org/10.5061/dryad.9w0vt4bk7 unknown Zenodo https://zenodo.org/communities/dryad https://doi.org/10.5061/dryad.9w0vt4bk7 oai:zenodo.org:7344698 info:eu-repo/semantics/openAccess Creative Commons Zero v1.0 Universal https://creativecommons.org/publicdomain/zero/1.0/legalcode host density gill lice Salmincola edwardsii parasite population dynamics Arctic charr Salvelinus alpinus info:eu-repo/semantics/other 2022 ftzenodo https://doi.org/10.5061/dryad.9w0vt4bk7 2024-07-25T17:48:20Z Host density, host body size, and ambient temperature have all been positively associated with increases in parasite infection. However, the relative importance of these factors in shaping long-term parasite population dynamics in wild host populations is unknown due to the absence of long-term studies. Here, we examine long-term drivers of gill lice (Copepoda) infections in Arctic charr (Salmonidae) over 32 years. We predicted that host density and body size and water temperature would all positively affect parasite population size and population growth rate. Our results show that fish size was the main driver of gill lice infections in Arctic charr. In addition, Arctic charr became infected at smaller sizes and with more parasites in years of higher brown trout population size. Negative intraguild interactions between brown trout and Arctic charr appear to drive smaller Arctic charr to seek refuge in deeper areas of the lake, thus increasing infection risk. There was no effect of host density on the force of infection, and the relationship between Arctic charr density and parasite mean abundance was negative, possibly due to an encounter-dilution effect. The population densities of host and parasite fluctuated independently of one another. Water temperature had negligible effects on the temporal dynamics of the gill lice population. Understanding long-term drivers of parasite population dynamics is key for research and management. In fish farms, artificially high densities of hosts lead to vast increases in the transmission of parasitic copepods. However, in wild fish populations fluctuating at natural densities, the surface area available for copepodid attachment might be more important than the density of available hosts. Any program that can open .csv files, such as Excel or R. Funding provided by: Norges Forskningsråd Crossref Funder Registry ID: http://dx.doi.org/10.13039/501100005416 Award Number: NFR 213610 Funding provided by: Universitetet i Tromsø Crossref Funder Registry ID: ... Other/Unknown Material Arctic charr Salvelinus alpinus Tromsø Copepods Universitetet i Tromsø Zenodo |
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host density gill lice Salmincola edwardsii parasite population dynamics Arctic charr Salvelinus alpinus |
spellingShingle |
host density gill lice Salmincola edwardsii parasite population dynamics Arctic charr Salvelinus alpinus Henriksen, Eirik Frainer, Andre Poulin, Robert Knudsen, Rune Per-Arne, Amundsen Data for: Ectoparasite population dynamics affected by host body size but not host density or water temperature in a 32-year long time series |
topic_facet |
host density gill lice Salmincola edwardsii parasite population dynamics Arctic charr Salvelinus alpinus |
description |
Host density, host body size, and ambient temperature have all been positively associated with increases in parasite infection. However, the relative importance of these factors in shaping long-term parasite population dynamics in wild host populations is unknown due to the absence of long-term studies. Here, we examine long-term drivers of gill lice (Copepoda) infections in Arctic charr (Salmonidae) over 32 years. We predicted that host density and body size and water temperature would all positively affect parasite population size and population growth rate. Our results show that fish size was the main driver of gill lice infections in Arctic charr. In addition, Arctic charr became infected at smaller sizes and with more parasites in years of higher brown trout population size. Negative intraguild interactions between brown trout and Arctic charr appear to drive smaller Arctic charr to seek refuge in deeper areas of the lake, thus increasing infection risk. There was no effect of host density on the force of infection, and the relationship between Arctic charr density and parasite mean abundance was negative, possibly due to an encounter-dilution effect. The population densities of host and parasite fluctuated independently of one another. Water temperature had negligible effects on the temporal dynamics of the gill lice population. Understanding long-term drivers of parasite population dynamics is key for research and management. In fish farms, artificially high densities of hosts lead to vast increases in the transmission of parasitic copepods. However, in wild fish populations fluctuating at natural densities, the surface area available for copepodid attachment might be more important than the density of available hosts. Any program that can open .csv files, such as Excel or R. Funding provided by: Norges Forskningsråd Crossref Funder Registry ID: http://dx.doi.org/10.13039/501100005416 Award Number: NFR 213610 Funding provided by: Universitetet i Tromsø Crossref Funder Registry ID: ... |
format |
Other/Unknown Material |
author |
Henriksen, Eirik Frainer, Andre Poulin, Robert Knudsen, Rune Per-Arne, Amundsen |
author_facet |
Henriksen, Eirik Frainer, Andre Poulin, Robert Knudsen, Rune Per-Arne, Amundsen |
author_sort |
Henriksen, Eirik |
title |
Data for: Ectoparasite population dynamics affected by host body size but not host density or water temperature in a 32-year long time series |
title_short |
Data for: Ectoparasite population dynamics affected by host body size but not host density or water temperature in a 32-year long time series |
title_full |
Data for: Ectoparasite population dynamics affected by host body size but not host density or water temperature in a 32-year long time series |
title_fullStr |
Data for: Ectoparasite population dynamics affected by host body size but not host density or water temperature in a 32-year long time series |
title_full_unstemmed |
Data for: Ectoparasite population dynamics affected by host body size but not host density or water temperature in a 32-year long time series |
title_sort |
data for: ectoparasite population dynamics affected by host body size but not host density or water temperature in a 32-year long time series |
publisher |
Zenodo |
publishDate |
2022 |
url |
https://doi.org/10.5061/dryad.9w0vt4bk7 |
genre |
Arctic charr Salvelinus alpinus Tromsø Copepods Universitetet i Tromsø |
genre_facet |
Arctic charr Salvelinus alpinus Tromsø Copepods Universitetet i Tromsø |
op_relation |
https://zenodo.org/communities/dryad https://doi.org/10.5061/dryad.9w0vt4bk7 oai:zenodo.org:7344698 |
op_rights |
info:eu-repo/semantics/openAccess Creative Commons Zero v1.0 Universal https://creativecommons.org/publicdomain/zero/1.0/legalcode |
op_doi |
https://doi.org/10.5061/dryad.9w0vt4bk7 |
_version_ |
1810294390012248064 |