Data from: Seasonal dietary shifts enhance parasite transmission to lake salmonids during ice cover

Changes in abiotic and biotic factors between seasons in subarctic lake systems are often profound, potentially affecting the community structure and population dynamics of parasites over the annual cycle. However, few winter studies exist and interactions between fish hosts and their parasites are...

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Main Authors: Prati, Sebastian, Henriksen, Eirik H., Knudsen, Rune, Amundsen, Per‐Arne
Format: Other/Unknown Material
Language:unknown
Published: Zenodo 2021
Subjects:
Online Access:https://doi.org/10.5061/dryad.r2280gb8w
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spelling ftzenodo:oai:zenodo.org:3963212 2024-09-15T17:52:21+00:00 Data from: Seasonal dietary shifts enhance parasite transmission to lake salmonids during ice cover Prati, Sebastian Henriksen, Eirik H. Knudsen, Rune Amundsen, Per‐Arne 2021-06-17 https://doi.org/10.5061/dryad.r2280gb8w unknown Zenodo https://doi.org/10.1002/ece3.6173 https://zenodo.org/communities/dryad https://doi.org/10.5061/dryad.r2280gb8w oai:zenodo.org:3963212 info:eu-repo/semantics/openAccess Creative Commons Zero v1.0 Universal https://creativecommons.org/publicdomain/zero/1.0/legalcode info:eu-repo/semantics/other 2021 ftzenodo https://doi.org/10.5061/dryad.r2280gb8w10.1002/ece3.6173 2024-07-26T10:23:08Z Changes in abiotic and biotic factors between seasons in subarctic lake systems are often profound, potentially affecting the community structure and population dynamics of parasites over the annual cycle. However, few winter studies exist and interactions between fish hosts and their parasites are typically confined to snapshot studies restricted to the summer season whereas host-parasite dynamics during the ice-covered period rarely have been explored. The present study addresses seasonal patterns in the infections of intestinal parasites and their association with the diet of sympatric living Arctic charr (Salvelinus alpinus) and brown trout (Salmo trutta) in Lake Takvatn, a subarctic lake in northern Norway. In total, 354 Arctic charr and 203 brown trout were sampled from the littoral habitat between June 2017 and May 2018. Six trophically transmitted intestinal parasite taxa were identified and quantified, and their seasonal variations were contrasted with dietary information from both stomachs and intestines of the fish. The winter period proved to be an important transmission window for parasites, with increased prevalence and intensity of amphipod-transmitted parasites in Arctic charr and parasites transmitted through piscivory in brown trout. In Arctic charr, seasonal patterns in parasite infections resulted mainly from temporal changes in diet towards amphipods, whereas host body size and the utilization of fish prey were the main drivers in brown trout. The overall dynamics in the community structure of parasites chiefly mirrored the seasonal dietary shifts of their fish hosts. Other/Unknown Material Arctic charr Northern Norway Salvelinus alpinus Subarctic Zenodo
institution Open Polar
collection Zenodo
op_collection_id ftzenodo
language unknown
description Changes in abiotic and biotic factors between seasons in subarctic lake systems are often profound, potentially affecting the community structure and population dynamics of parasites over the annual cycle. However, few winter studies exist and interactions between fish hosts and their parasites are typically confined to snapshot studies restricted to the summer season whereas host-parasite dynamics during the ice-covered period rarely have been explored. The present study addresses seasonal patterns in the infections of intestinal parasites and their association with the diet of sympatric living Arctic charr (Salvelinus alpinus) and brown trout (Salmo trutta) in Lake Takvatn, a subarctic lake in northern Norway. In total, 354 Arctic charr and 203 brown trout were sampled from the littoral habitat between June 2017 and May 2018. Six trophically transmitted intestinal parasite taxa were identified and quantified, and their seasonal variations were contrasted with dietary information from both stomachs and intestines of the fish. The winter period proved to be an important transmission window for parasites, with increased prevalence and intensity of amphipod-transmitted parasites in Arctic charr and parasites transmitted through piscivory in brown trout. In Arctic charr, seasonal patterns in parasite infections resulted mainly from temporal changes in diet towards amphipods, whereas host body size and the utilization of fish prey were the main drivers in brown trout. The overall dynamics in the community structure of parasites chiefly mirrored the seasonal dietary shifts of their fish hosts.
format Other/Unknown Material
author Prati, Sebastian
Henriksen, Eirik H.
Knudsen, Rune
Amundsen, Per‐Arne
spellingShingle Prati, Sebastian
Henriksen, Eirik H.
Knudsen, Rune
Amundsen, Per‐Arne
Data from: Seasonal dietary shifts enhance parasite transmission to lake salmonids during ice cover
author_facet Prati, Sebastian
Henriksen, Eirik H.
Knudsen, Rune
Amundsen, Per‐Arne
author_sort Prati, Sebastian
title Data from: Seasonal dietary shifts enhance parasite transmission to lake salmonids during ice cover
title_short Data from: Seasonal dietary shifts enhance parasite transmission to lake salmonids during ice cover
title_full Data from: Seasonal dietary shifts enhance parasite transmission to lake salmonids during ice cover
title_fullStr Data from: Seasonal dietary shifts enhance parasite transmission to lake salmonids during ice cover
title_full_unstemmed Data from: Seasonal dietary shifts enhance parasite transmission to lake salmonids during ice cover
title_sort data from: seasonal dietary shifts enhance parasite transmission to lake salmonids during ice cover
publisher Zenodo
publishDate 2021
url https://doi.org/10.5061/dryad.r2280gb8w
genre Arctic charr
Northern Norway
Salvelinus alpinus
Subarctic
genre_facet Arctic charr
Northern Norway
Salvelinus alpinus
Subarctic
op_relation https://doi.org/10.1002/ece3.6173
https://zenodo.org/communities/dryad
https://doi.org/10.5061/dryad.r2280gb8w
oai:zenodo.org:3963212
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.r2280gb8w10.1002/ece3.6173
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