Data from: Freezer on, lights off! Environmental effects on activity rhythms of fish in the Arctic

Polar regions are characterized by acute seasonal changes in the environment, with organisms inhabiting these regions lacking diel photoperiodic information for parts of the year. We present, to our knowledge, the first high-resolution analysis of diel and seasonal activity of free-living fishes in...

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Main Authors: Hawley, Kate L., Rosten, Carolyn M., Haugen, Thrond O., Christensen, Guttorm, Lucas, Martyn C.
Format: Dataset
Language:unknown
Published: Dryad 2020
Subjects:
geo
Online Access:https://doi.org/10.5061/dryad.6k294
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spelling fttriple:oai:gotriple.eu:50|dedup_wf_001::98637289dcae01cddd1c52d91cfbc93f 2023-05-15T14:30:02+02:00 Data from: Freezer on, lights off! Environmental effects on activity rhythms of fish in the Arctic Hawley, Kate L. Rosten, Carolyn M. Haugen, Thrond O. Christensen, Guttorm Lucas, Martyn C. 2020-07-13 https://doi.org/10.5061/dryad.6k294 undefined unknown Dryad https://dx.doi.org/10.5061/dryad.6k294 http://dx.doi.org/10.5061/dryad.6k294 lic_creative-commons 10.5061/dryad.6k294 oai:services.nod.dans.knaw.nl:Products/dans:oai:easy.dans.knaw.nl:easy-dataset:103487 oai:easy.dans.knaw.nl:easy-dataset:103487 10|openaire____::9e3be59865b2c1c335d32dae2fe7b254 re3data_____::r3d100000044 10|eurocrisdris::fe4903425d9040f680d8610d9079ea14 10|re3data_____::94816e6421eeb072e7742ce6a9decc5f 10|re3data_____::84e123776089ce3c7a33db98d9cd15a8 10|opendoar____::8b6dd7db9af49e67306feb59a8bdc52c 10|openaire____::081b82f96300b6a6e3d282bad31cb6e2 behavioural ecology Arctic charr circadian rhythm biotelemetry Photoperiod Salvelinus alpinus Life sciences medicine and health care geo demo Dataset https://vocabularies.coar-repositories.org/resource_types/c_ddb1/ 2020 fttriple https://doi.org/10.5061/dryad.6k294 2023-01-22T17:23:06Z Polar regions are characterized by acute seasonal changes in the environment, with organisms inhabiting these regions lacking diel photoperiodic information for parts of the year. We present, to our knowledge, the first high-resolution analysis of diel and seasonal activity of free-living fishes in polar waters (74°N), subject to extreme variation in photoperiod, temperature and food availability. Using biotelemetry, we tracked two sympatric ecomorphs of lake-dwelling Arctic charr (Salvelinus alpinus n = 23) over an annual cycle. Charr activity rhythms reflected the above-surface photoperiod (including under ice), with diel rhythms of activity observed. During the dark winter solstice period, charr activity became arrhythmic and much reduced, even though estimated light levels were within those at which charr can feed. When twilight resumed, charr activity ensued as diel vertical migration, which continued throughout spring and with increasing day length, despite stable water temperatures. Diel activity rhythms ceased during the polar day, with a sharp increase in arrhythmic fish activity occurring at ice-break. Despite contrasting resource use, circannual rhythms were mirrored in the two ecomorphs, although individual variability in activity rhythms was evident. Our data support conclusions of functionally adaptive periods of arrhythmicity in polar animals, suggesting maintenance of a circannual oscillator for scheduling seasonal behavioural and developmental processes. Photoperiod_DyradTracking data of 23 individual Arctic charr, from Lake Ellasjøen, Bear Island, Norway. Data is derived by biotelemetry from Sep 2009- Aug 2010. Dataset Arctic charr Arctic Bear Island Salvelinus alpinus Unknown Arctic Norway Bear Island ENVELOPE(-67.250,-67.250,-68.151,-68.151) Ellasjøen ENVELOPE(19.031,19.031,74.388,74.388)
institution Open Polar
collection Unknown
op_collection_id fttriple
language unknown
topic behavioural ecology
Arctic charr
circadian rhythm
biotelemetry
Photoperiod
Salvelinus alpinus
Life sciences
medicine and health care
geo
demo
spellingShingle behavioural ecology
Arctic charr
circadian rhythm
biotelemetry
Photoperiod
Salvelinus alpinus
Life sciences
medicine and health care
geo
demo
Hawley, Kate L.
Rosten, Carolyn M.
Haugen, Thrond O.
Christensen, Guttorm
Lucas, Martyn C.
Data from: Freezer on, lights off! Environmental effects on activity rhythms of fish in the Arctic
topic_facet behavioural ecology
Arctic charr
circadian rhythm
biotelemetry
Photoperiod
Salvelinus alpinus
Life sciences
medicine and health care
geo
demo
description Polar regions are characterized by acute seasonal changes in the environment, with organisms inhabiting these regions lacking diel photoperiodic information for parts of the year. We present, to our knowledge, the first high-resolution analysis of diel and seasonal activity of free-living fishes in polar waters (74°N), subject to extreme variation in photoperiod, temperature and food availability. Using biotelemetry, we tracked two sympatric ecomorphs of lake-dwelling Arctic charr (Salvelinus alpinus n = 23) over an annual cycle. Charr activity rhythms reflected the above-surface photoperiod (including under ice), with diel rhythms of activity observed. During the dark winter solstice period, charr activity became arrhythmic and much reduced, even though estimated light levels were within those at which charr can feed. When twilight resumed, charr activity ensued as diel vertical migration, which continued throughout spring and with increasing day length, despite stable water temperatures. Diel activity rhythms ceased during the polar day, with a sharp increase in arrhythmic fish activity occurring at ice-break. Despite contrasting resource use, circannual rhythms were mirrored in the two ecomorphs, although individual variability in activity rhythms was evident. Our data support conclusions of functionally adaptive periods of arrhythmicity in polar animals, suggesting maintenance of a circannual oscillator for scheduling seasonal behavioural and developmental processes. Photoperiod_DyradTracking data of 23 individual Arctic charr, from Lake Ellasjøen, Bear Island, Norway. Data is derived by biotelemetry from Sep 2009- Aug 2010.
format Dataset
author Hawley, Kate L.
Rosten, Carolyn M.
Haugen, Thrond O.
Christensen, Guttorm
Lucas, Martyn C.
author_facet Hawley, Kate L.
Rosten, Carolyn M.
Haugen, Thrond O.
Christensen, Guttorm
Lucas, Martyn C.
author_sort Hawley, Kate L.
title Data from: Freezer on, lights off! Environmental effects on activity rhythms of fish in the Arctic
title_short Data from: Freezer on, lights off! Environmental effects on activity rhythms of fish in the Arctic
title_full Data from: Freezer on, lights off! Environmental effects on activity rhythms of fish in the Arctic
title_fullStr Data from: Freezer on, lights off! Environmental effects on activity rhythms of fish in the Arctic
title_full_unstemmed Data from: Freezer on, lights off! Environmental effects on activity rhythms of fish in the Arctic
title_sort data from: freezer on, lights off! environmental effects on activity rhythms of fish in the arctic
publisher Dryad
publishDate 2020
url https://doi.org/10.5061/dryad.6k294
long_lat ENVELOPE(-67.250,-67.250,-68.151,-68.151)
ENVELOPE(19.031,19.031,74.388,74.388)
geographic Arctic
Norway
Bear Island
Ellasjøen
geographic_facet Arctic
Norway
Bear Island
Ellasjøen
genre Arctic charr
Arctic
Bear Island
Salvelinus alpinus
genre_facet Arctic charr
Arctic
Bear Island
Salvelinus alpinus
op_source 10.5061/dryad.6k294
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oai:easy.dans.knaw.nl:easy-dataset:103487
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10|eurocrisdris::fe4903425d9040f680d8610d9079ea14
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op_relation https://dx.doi.org/10.5061/dryad.6k294
http://dx.doi.org/10.5061/dryad.6k294
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op_doi https://doi.org/10.5061/dryad.6k294
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