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...
Main Authors: | , , , , , , |
---|---|
Language: | unknown |
Published: |
2019
|
Subjects: | |
Online Access: | http://nbn-resolving.org/urn:nbn:nl:ui:13-zg-47lr https://easy.dans.knaw.nl/ui/datasets/id/easy-dataset:125871 |
id |
ftdans:oai:easy.dans.knaw.nl:easy-dataset:125871 |
---|---|
record_format |
openpolar |
spelling |
ftdans:oai:easy.dans.knaw.nl:easy-dataset:125871 2023-07-02T03:30:55+02:00 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 2019-03-08T19:46:33.000+01:00 http://nbn-resolving.org/urn:nbn:nl:ui:13-zg-47lr https://easy.dans.knaw.nl/ui/datasets/id/easy-dataset:125871 unknown doi:10.5061/dryad.bd10668/1 doi:10.5061/dryad.bd10668/2 doi:10.1111/1365-2664.13369 http://nbn-resolving.org/urn:nbn:nl:ui:13-zg-47lr doi:10.5061/dryad.bd10668 https://easy.dans.knaw.nl/ui/datasets/id/easy-dataset:125871 OPEN_ACCESS: The data are archived in Easy, they are accessible elsewhere through the DOI https://dans.knaw.nl/en/about/organisation-and-policy/legal-information/DANSLicence.pdf Life sciences medicine and health care 2019 ftdans https://doi.org/10.5061/dryad.bd10668/110.5061/dryad.bd10668/210.1111/1365-2664.1336910.5061/dryad.bd10668 2023-06-13T13:19:01Z 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. Other/Unknown Material Arctic charr Arctic Salvelinus alpinus Subarctic Data Archiving and Networked Services (DANS): EASY (KNAW - Koninklijke Nederlandse Akademie van Wetenschappen) Arctic |
institution |
Open Polar |
collection |
Data Archiving and Networked Services (DANS): EASY (KNAW - Koninklijke Nederlandse Akademie van Wetenschappen) |
op_collection_id |
ftdans |
language |
unknown |
topic |
Life sciences medicine and health care |
spellingShingle |
Life sciences medicine and health care 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 |
Life sciences medicine and health care |
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. |
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 |
publishDate |
2019 |
url |
http://nbn-resolving.org/urn:nbn:nl:ui:13-zg-47lr https://easy.dans.knaw.nl/ui/datasets/id/easy-dataset:125871 |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic charr Arctic Salvelinus alpinus Subarctic |
genre_facet |
Arctic charr Arctic Salvelinus alpinus Subarctic |
op_relation |
doi:10.5061/dryad.bd10668/1 doi:10.5061/dryad.bd10668/2 doi:10.1111/1365-2664.13369 http://nbn-resolving.org/urn:nbn:nl:ui:13-zg-47lr doi:10.5061/dryad.bd10668 https://easy.dans.knaw.nl/ui/datasets/id/easy-dataset:125871 |
op_rights |
OPEN_ACCESS: The data are archived in Easy, they are accessible elsewhere through the DOI https://dans.knaw.nl/en/about/organisation-and-policy/legal-information/DANSLicence.pdf |
op_doi |
https://doi.org/10.5061/dryad.bd10668/110.5061/dryad.bd10668/210.1111/1365-2664.1336910.5061/dryad.bd10668 |
_version_ |
1770275192797396992 |