Comparison of zooplankton vertical migration in an ice-free and a seasonally ice-covered Arctic fjord: An insight into the influence of sea ice cover on zooplankton behaviour
We present observations of zooplankton diel vertical migration (DVM) over a period of 2 yr in an ice-free and a seasonally ice-covered Arctic fjord. The contrasting environments permitted assessment of the influences of physical and biological factors on temporal variability in DVM patterns and a te...
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American Society of Limnology and Oceanography
2010
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ftnerc:oai:nora.nerc.ac.uk:14855 2023-05-15T14:26:55+02:00 Comparison of zooplankton vertical migration in an ice-free and a seasonally ice-covered Arctic fjord: An insight into the influence of sea ice cover on zooplankton behaviour Wallace, Margaret I. Cottier, Finlo R. Berge, Jorgen Tarling, Geraint A. Griffiths, Colin Brierley, Andrew S. 2010 http://nora.nerc.ac.uk/id/eprint/14855/ http://www.aslo.org/lo/pdf/vol_55/issue_2/0831.pdf unknown American Society of Limnology and Oceanography Wallace, Margaret I.; Cottier, Finlo R.; Berge, Jorgen; Tarling, Geraint A. orcid:0000-0002-3753-5899 Griffiths, Colin; Brierley, Andrew S. 2010 Comparison of zooplankton vertical migration in an ice-free and a seasonally ice-covered Arctic fjord: An insight into the influence of sea ice cover on zooplankton behaviour. Limnology and Oceanography, 55 (2). 831-845. https://doi.org/10.4319/lo.2009.55.2.0831 <https://doi.org/10.4319/lo.2009.55.2.0831> Biology and Microbiology Ecology and Environment Publication - Article PeerReviewed 2010 ftnerc https://doi.org/10.4319/lo.2009.55.2.0831 2023-02-04T19:29:31Z We present observations of zooplankton diel vertical migration (DVM) over a period of 2 yr in an ice-free and a seasonally ice-covered Arctic fjord. The contrasting environments permitted assessment of the influences of physical and biological factors on temporal variability in DVM patterns and a test of the hypothesis that a reduction in summer sea ice extent and thickness following climatic warming will lead to changes in DVM via the loss of a shading effect on the pelagic marine environment. Acoustic backscatter and vertical velocity data from moored 300-kHz acoustic Doppler current profilers were used to derive DVM patterns, while measurements of sea ice and snow thickness enabled assessment of the underwater light environment and consideration of its potential to influence DVM. Pronounced differences in DVM between the sites emerged during summertime when intermittent synchronized DVM was observed at the ice-free site, whereas the ice-covered site was characterized by asynchronous behavior, thereby highlighting the influence of sea ice. Notably, the 0.8-m-thick sea ice cover was deemed important for its influence on water column properties such as food, turbidity, and zooplankton species composition, as indicated by biological samples from moored sediment traps, rather than a simple shading of the ocean and direct modification of zooplankton DVM. Loss of Arctic sea ice is likely to have an indirect but substantial effect on zooplankton DVM via modification of hydrography and composition of the pelagic community. Article in Journal/Newspaper Arctic Arctic Sea ice Zooplankton Natural Environment Research Council: NERC Open Research Archive Arctic Limnology and Oceanography 55 2 831 845 |
institution |
Open Polar |
collection |
Natural Environment Research Council: NERC Open Research Archive |
op_collection_id |
ftnerc |
language |
unknown |
topic |
Biology and Microbiology Ecology and Environment |
spellingShingle |
Biology and Microbiology Ecology and Environment Wallace, Margaret I. Cottier, Finlo R. Berge, Jorgen Tarling, Geraint A. Griffiths, Colin Brierley, Andrew S. Comparison of zooplankton vertical migration in an ice-free and a seasonally ice-covered Arctic fjord: An insight into the influence of sea ice cover on zooplankton behaviour |
topic_facet |
Biology and Microbiology Ecology and Environment |
description |
We present observations of zooplankton diel vertical migration (DVM) over a period of 2 yr in an ice-free and a seasonally ice-covered Arctic fjord. The contrasting environments permitted assessment of the influences of physical and biological factors on temporal variability in DVM patterns and a test of the hypothesis that a reduction in summer sea ice extent and thickness following climatic warming will lead to changes in DVM via the loss of a shading effect on the pelagic marine environment. Acoustic backscatter and vertical velocity data from moored 300-kHz acoustic Doppler current profilers were used to derive DVM patterns, while measurements of sea ice and snow thickness enabled assessment of the underwater light environment and consideration of its potential to influence DVM. Pronounced differences in DVM between the sites emerged during summertime when intermittent synchronized DVM was observed at the ice-free site, whereas the ice-covered site was characterized by asynchronous behavior, thereby highlighting the influence of sea ice. Notably, the 0.8-m-thick sea ice cover was deemed important for its influence on water column properties such as food, turbidity, and zooplankton species composition, as indicated by biological samples from moored sediment traps, rather than a simple shading of the ocean and direct modification of zooplankton DVM. Loss of Arctic sea ice is likely to have an indirect but substantial effect on zooplankton DVM via modification of hydrography and composition of the pelagic community. |
format |
Article in Journal/Newspaper |
author |
Wallace, Margaret I. Cottier, Finlo R. Berge, Jorgen Tarling, Geraint A. Griffiths, Colin Brierley, Andrew S. |
author_facet |
Wallace, Margaret I. Cottier, Finlo R. Berge, Jorgen Tarling, Geraint A. Griffiths, Colin Brierley, Andrew S. |
author_sort |
Wallace, Margaret I. |
title |
Comparison of zooplankton vertical migration in an ice-free and a seasonally ice-covered Arctic fjord: An insight into the influence of sea ice cover on zooplankton behaviour |
title_short |
Comparison of zooplankton vertical migration in an ice-free and a seasonally ice-covered Arctic fjord: An insight into the influence of sea ice cover on zooplankton behaviour |
title_full |
Comparison of zooplankton vertical migration in an ice-free and a seasonally ice-covered Arctic fjord: An insight into the influence of sea ice cover on zooplankton behaviour |
title_fullStr |
Comparison of zooplankton vertical migration in an ice-free and a seasonally ice-covered Arctic fjord: An insight into the influence of sea ice cover on zooplankton behaviour |
title_full_unstemmed |
Comparison of zooplankton vertical migration in an ice-free and a seasonally ice-covered Arctic fjord: An insight into the influence of sea ice cover on zooplankton behaviour |
title_sort |
comparison of zooplankton vertical migration in an ice-free and a seasonally ice-covered arctic fjord: an insight into the influence of sea ice cover on zooplankton behaviour |
publisher |
American Society of Limnology and Oceanography |
publishDate |
2010 |
url |
http://nora.nerc.ac.uk/id/eprint/14855/ http://www.aslo.org/lo/pdf/vol_55/issue_2/0831.pdf |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic Arctic Sea ice Zooplankton |
genre_facet |
Arctic Arctic Sea ice Zooplankton |
op_relation |
Wallace, Margaret I.; Cottier, Finlo R.; Berge, Jorgen; Tarling, Geraint A. orcid:0000-0002-3753-5899 Griffiths, Colin; Brierley, Andrew S. 2010 Comparison of zooplankton vertical migration in an ice-free and a seasonally ice-covered Arctic fjord: An insight into the influence of sea ice cover on zooplankton behaviour. Limnology and Oceanography, 55 (2). 831-845. https://doi.org/10.4319/lo.2009.55.2.0831 <https://doi.org/10.4319/lo.2009.55.2.0831> |
op_doi |
https://doi.org/10.4319/lo.2009.55.2.0831 |
container_title |
Limnology and Oceanography |
container_volume |
55 |
container_issue |
2 |
container_start_page |
831 |
op_container_end_page |
845 |
_version_ |
1766300395214209024 |