Data from: Fish culling reduces tapeworm burden in Arctic charr by increasing parasite mortality rather than by reducing density‐dependent transmission
1. Two common Dibothriocephalus (formerly Diphyllobothrium) tapeworm species were significantly reduced by experimental culling of their fish host Arctic charr (Salvelinus alpinus) in a subarctic lake. 2. Between 1984 and 1991, funnel traps were used to cull ~ 35 metric tons of Arctic charr, reducin...
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ftzenodo:oai:zenodo.org:4939303 2024-09-15T17:52:22+00:00 Data from: Fish culling reduces tapeworm burden in Arctic charr by increasing parasite mortality rather than by reducing density‐dependent transmission Henriksen, Eirik Haugstvedt Frainer, André Knudsen, Rune Kristoffersen, Roar Kuris, Armand M. Lafferty, Kevin D. Amundsen, Per-Arne 2019-03-08 https://doi.org/10.5061/dryad.bd10668 unknown Zenodo https://doi.org/10.1111/1365-2664.13369 https://zenodo.org/communities/dryad https://doi.org/10.5061/dryad.bd10668 oai:zenodo.org:4939303 info:eu-repo/semantics/openAccess Creative Commons Zero v1.0 Universal https://creativecommons.org/publicdomain/zero/1.0/legalcode fish parasites Diphyllobothrium host culling fishing long-term study whole-lake experiment host-parasite interactions Dibothriocephalus dendriticus Dibothriocephalus ditremus Dibothriocephalus Salvelinus alpinus info:eu-repo/semantics/other 2019 ftzenodo https://doi.org/10.5061/dryad.bd1066810.1111/1365-2664.13369 2024-07-27T07:42:19Z 1. Two common Dibothriocephalus (formerly Diphyllobothrium) tapeworm species were significantly reduced by experimental culling of their fish host Arctic charr (Salvelinus alpinus) in a subarctic lake. 2. Between 1984 and 1991, funnel traps were used to cull ~ 35 metric tons of Arctic charr, reducing charr density by ~ 80%. As charr densities decreased, tapeworm prevalence and then intensity also declined over the following three decades, with D. dendriticus (formerly dendriticum) responding faster than D. ditremus (formerly ditremum). The two main hypotheses for how culling a host can decrease parasitism are reductions in parasite transmission due to reduced host density and reductions in parasite survival through increases in host mortality rates. 3. We found little evidence that charr density was the main driver for reduced parasite transmission. Instead, decreased survivorship in charr, initially, through fishing-induced changes in charr age structure, and later through increased predation rates by brown trout, led to increased parasite mortality. Although brown trout, which increased significantly after fish culling, are also hosts, they are often too big for the final host birds to eat, thus becoming parasite sinks. 4. Synthesis and applications: Fish populations with heavy parasite burdens constitute a management problem. Our results show how fish culling reduce indirectly transmitted parasites through increased parasite mortality. Managing overcrowded fish populations by culling can produce two desirable outcomes: an increase in fish growth rates and reduced parasite burdens. Henriksen_et_al_dibothriocephalus_data Data used to produce figure 1 and 2 in manuscript. dibothriocephalus_data.csv Henriksen_et_al_individual_fish_data Data used for GLS and logistic regression analysis. individual_fish_data.csv Other/Unknown Material Arctic charr Salvelinus alpinus Subarctic Zenodo |
institution |
Open Polar |
collection |
Zenodo |
op_collection_id |
ftzenodo |
language |
unknown |
topic |
fish parasites Diphyllobothrium host culling fishing long-term study whole-lake experiment host-parasite interactions Dibothriocephalus dendriticus Dibothriocephalus ditremus Dibothriocephalus Salvelinus alpinus |
spellingShingle |
fish parasites Diphyllobothrium host culling fishing long-term study whole-lake experiment host-parasite interactions Dibothriocephalus dendriticus Dibothriocephalus ditremus Dibothriocephalus Salvelinus alpinus Henriksen, Eirik Haugstvedt Frainer, André Knudsen, Rune Kristoffersen, Roar Kuris, Armand M. Lafferty, Kevin D. Amundsen, Per-Arne Data from: Fish culling reduces tapeworm burden in Arctic charr by increasing parasite mortality rather than by reducing density‐dependent transmission |
topic_facet |
fish parasites Diphyllobothrium host culling fishing long-term study whole-lake experiment host-parasite interactions Dibothriocephalus dendriticus Dibothriocephalus ditremus Dibothriocephalus Salvelinus alpinus |
description |
1. Two common Dibothriocephalus (formerly Diphyllobothrium) tapeworm species were significantly reduced by experimental culling of their fish host Arctic charr (Salvelinus alpinus) in a subarctic lake. 2. Between 1984 and 1991, funnel traps were used to cull ~ 35 metric tons of Arctic charr, reducing charr density by ~ 80%. As charr densities decreased, tapeworm prevalence and then intensity also declined over the following three decades, with D. dendriticus (formerly dendriticum) responding faster than D. ditremus (formerly ditremum). The two main hypotheses for how culling a host can decrease parasitism are reductions in parasite transmission due to reduced host density and reductions in parasite survival through increases in host mortality rates. 3. We found little evidence that charr density was the main driver for reduced parasite transmission. Instead, decreased survivorship in charr, initially, through fishing-induced changes in charr age structure, and later through increased predation rates by brown trout, led to increased parasite mortality. Although brown trout, which increased significantly after fish culling, are also hosts, they are often too big for the final host birds to eat, thus becoming parasite sinks. 4. Synthesis and applications: Fish populations with heavy parasite burdens constitute a management problem. Our results show how fish culling reduce indirectly transmitted parasites through increased parasite mortality. Managing overcrowded fish populations by culling can produce two desirable outcomes: an increase in fish growth rates and reduced parasite burdens. Henriksen_et_al_dibothriocephalus_data Data used to produce figure 1 and 2 in manuscript. dibothriocephalus_data.csv Henriksen_et_al_individual_fish_data Data used for GLS and logistic regression analysis. individual_fish_data.csv |
format |
Other/Unknown Material |
author |
Henriksen, Eirik Haugstvedt Frainer, André Knudsen, Rune Kristoffersen, Roar Kuris, Armand M. Lafferty, Kevin D. Amundsen, Per-Arne |
author_facet |
Henriksen, Eirik Haugstvedt Frainer, André Knudsen, Rune Kristoffersen, Roar Kuris, Armand M. Lafferty, Kevin D. Amundsen, Per-Arne |
author_sort |
Henriksen, Eirik Haugstvedt |
title |
Data from: Fish culling reduces tapeworm burden in Arctic charr by increasing parasite mortality rather than by reducing density‐dependent transmission |
title_short |
Data from: Fish culling reduces tapeworm burden in Arctic charr by increasing parasite mortality rather than by reducing density‐dependent transmission |
title_full |
Data from: Fish culling reduces tapeworm burden in Arctic charr by increasing parasite mortality rather than by reducing density‐dependent transmission |
title_fullStr |
Data from: Fish culling reduces tapeworm burden in Arctic charr by increasing parasite mortality rather than by reducing density‐dependent transmission |
title_full_unstemmed |
Data from: Fish culling reduces tapeworm burden in Arctic charr by increasing parasite mortality rather than by reducing density‐dependent transmission |
title_sort |
data from: fish culling reduces tapeworm burden in arctic charr by increasing parasite mortality rather than by reducing density‐dependent transmission |
publisher |
Zenodo |
publishDate |
2019 |
url |
https://doi.org/10.5061/dryad.bd10668 |
genre |
Arctic charr Salvelinus alpinus Subarctic |
genre_facet |
Arctic charr Salvelinus alpinus Subarctic |
op_relation |
https://doi.org/10.1111/1365-2664.13369 https://zenodo.org/communities/dryad https://doi.org/10.5061/dryad.bd10668 oai:zenodo.org:4939303 |
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.bd1066810.1111/1365-2664.13369 |
_version_ |
1810294416965894144 |