Seasonal vertical strategies in a high-Arctic coastal zooplankton community
We studied the larger (>1000 µm) size fraction of zooplankton in an Arctic coastal water community in Billefjorden, Svalbard (78°40’ N), Norway, in order to describe seasonal vertical distributions of the dominant taxa in relation to environmental variability. Calanus spp. numerically dominated t...
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Language: | English |
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2016
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Online Access: | https://hdl.handle.net/10037/10108 https://doi.org/10.3354/meps11831 |
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ftunivtroemsoe:oai:munin.uit.no:10037/10108 2023-05-15T14:55:50+02:00 Seasonal vertical strategies in a high-Arctic coastal zooplankton community Bandara, Kanchana Varpe, Øystein Søreide, Janne Wallenschus, Jago Berge, Jørgen Eiane, Ketil 2016-08-18 https://hdl.handle.net/10037/10108 https://doi.org/10.3354/meps11831 eng eng Inter Research Marine Ecology Progress Series 2016, 555:49-64 FRIDAID 1389699 doi:10.3354/meps11831 0171-8630 https://hdl.handle.net/10037/10108 embargoedAccess VDP::Matematikk og Naturvitenskap: 400::Zoologiske og botaniske fag: 480::Marinbiologi: 497 VDP::Mathematics and natural science: 400::Zoology and botany: 480::Marine biology: 497 Seasonal vertical migration Trophic interactions Pelagic environments Predator−prey interactions Journal article Tidsskriftartikkel Peer reviewed 2016 ftunivtroemsoe https://doi.org/10.3354/meps11831 2021-06-25T17:54:58Z We studied the larger (>1000 µm) size fraction of zooplankton in an Arctic coastal water community in Billefjorden, Svalbard (78°40’ N), Norway, in order to describe seasonal vertical distributions of the dominant taxa in relation to environmental variability. Calanus spp. numerically dominated the herbivores; Aglantha digitale, Mertensia ovum, Beroë cucumis, and Parasagitta elegans were the dominant carnivores. Omnivores and detritivores were numerically less important. Descent to deeper regions of the water column (>100 m) between August and October, and ascent to the shallower region (<100 m) between November and May was the overall seasonal pattern in this zooplankton community. In contrast to other groups, P. elegans did not exhibit pronounced vertical migrations. Seasonal vertical distributions of most species showed statistical associations with the availability of their main food source. The vertical distribution of later developmental stages of Calanus spp. was inversely associated with fluorescence, indicating that they descended from the shallower region while it was still relatively productive, and ascended before the primary production had started to increase. Strong associations between the vertical distributions of secondary consumer M. ovum and Calanus spp., and tertiary consumer B. cucumis and M. ovum indicated that these carnivores seasonally followed their prey through the water column. We conclude that seasonal vertical migrations are a widespread trait in the high Arctic community studied, and predator−prey interactions seem particularly central in shaping the associations between the seasonal vertical strategies of adjacent trophic levels. Article in Journal/Newspaper Arctic Billefjorden Svalbard Zooplankton University of Tromsø: Munin Open Research Archive Arctic Billefjorden ENVELOPE(16.417,16.417,78.563,78.563) Norway Svalbard Marine Ecology Progress Series 555 49 64 |
institution |
Open Polar |
collection |
University of Tromsø: Munin Open Research Archive |
op_collection_id |
ftunivtroemsoe |
language |
English |
topic |
VDP::Matematikk og Naturvitenskap: 400::Zoologiske og botaniske fag: 480::Marinbiologi: 497 VDP::Mathematics and natural science: 400::Zoology and botany: 480::Marine biology: 497 Seasonal vertical migration Trophic interactions Pelagic environments Predator−prey interactions |
spellingShingle |
VDP::Matematikk og Naturvitenskap: 400::Zoologiske og botaniske fag: 480::Marinbiologi: 497 VDP::Mathematics and natural science: 400::Zoology and botany: 480::Marine biology: 497 Seasonal vertical migration Trophic interactions Pelagic environments Predator−prey interactions Bandara, Kanchana Varpe, Øystein Søreide, Janne Wallenschus, Jago Berge, Jørgen Eiane, Ketil Seasonal vertical strategies in a high-Arctic coastal zooplankton community |
topic_facet |
VDP::Matematikk og Naturvitenskap: 400::Zoologiske og botaniske fag: 480::Marinbiologi: 497 VDP::Mathematics and natural science: 400::Zoology and botany: 480::Marine biology: 497 Seasonal vertical migration Trophic interactions Pelagic environments Predator−prey interactions |
description |
We studied the larger (>1000 µm) size fraction of zooplankton in an Arctic coastal water community in Billefjorden, Svalbard (78°40’ N), Norway, in order to describe seasonal vertical distributions of the dominant taxa in relation to environmental variability. Calanus spp. numerically dominated the herbivores; Aglantha digitale, Mertensia ovum, Beroë cucumis, and Parasagitta elegans were the dominant carnivores. Omnivores and detritivores were numerically less important. Descent to deeper regions of the water column (>100 m) between August and October, and ascent to the shallower region (<100 m) between November and May was the overall seasonal pattern in this zooplankton community. In contrast to other groups, P. elegans did not exhibit pronounced vertical migrations. Seasonal vertical distributions of most species showed statistical associations with the availability of their main food source. The vertical distribution of later developmental stages of Calanus spp. was inversely associated with fluorescence, indicating that they descended from the shallower region while it was still relatively productive, and ascended before the primary production had started to increase. Strong associations between the vertical distributions of secondary consumer M. ovum and Calanus spp., and tertiary consumer B. cucumis and M. ovum indicated that these carnivores seasonally followed their prey through the water column. We conclude that seasonal vertical migrations are a widespread trait in the high Arctic community studied, and predator−prey interactions seem particularly central in shaping the associations between the seasonal vertical strategies of adjacent trophic levels. |
format |
Article in Journal/Newspaper |
author |
Bandara, Kanchana Varpe, Øystein Søreide, Janne Wallenschus, Jago Berge, Jørgen Eiane, Ketil |
author_facet |
Bandara, Kanchana Varpe, Øystein Søreide, Janne Wallenschus, Jago Berge, Jørgen Eiane, Ketil |
author_sort |
Bandara, Kanchana |
title |
Seasonal vertical strategies in a high-Arctic coastal zooplankton community |
title_short |
Seasonal vertical strategies in a high-Arctic coastal zooplankton community |
title_full |
Seasonal vertical strategies in a high-Arctic coastal zooplankton community |
title_fullStr |
Seasonal vertical strategies in a high-Arctic coastal zooplankton community |
title_full_unstemmed |
Seasonal vertical strategies in a high-Arctic coastal zooplankton community |
title_sort |
seasonal vertical strategies in a high-arctic coastal zooplankton community |
publisher |
Inter Research |
publishDate |
2016 |
url |
https://hdl.handle.net/10037/10108 https://doi.org/10.3354/meps11831 |
long_lat |
ENVELOPE(16.417,16.417,78.563,78.563) |
geographic |
Arctic Billefjorden Norway Svalbard |
geographic_facet |
Arctic Billefjorden Norway Svalbard |
genre |
Arctic Billefjorden Svalbard Zooplankton |
genre_facet |
Arctic Billefjorden Svalbard Zooplankton |
op_relation |
Marine Ecology Progress Series 2016, 555:49-64 FRIDAID 1389699 doi:10.3354/meps11831 0171-8630 https://hdl.handle.net/10037/10108 |
op_rights |
embargoedAccess |
op_doi |
https://doi.org/10.3354/meps11831 |
container_title |
Marine Ecology Progress Series |
container_volume |
555 |
container_start_page |
49 |
op_container_end_page |
64 |
_version_ |
1766327845151309824 |