Supplementary methods and figures from A marine zooplankton community vertically structured by light across diel to interannual timescales
The predation risk of many aquatic taxa is dominated by visually searching predators, commonly a function of ambient light. Several studies propose that changes in visual predation will become a major climate-change impact on polar marine ecosystems. The high Arctic experiences extreme seasonality i...
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ftsmithonian:oai:figshare.com:article/14035971 2023-05-15T14:53:35+02:00 Supplementary methods and figures from A marine zooplankton community vertically structured by light across diel to interannual timescales Laura Hobbs (10144914) Neil S. Banas (9468017) Jonathan H. Cohen (7958483) Finlo R. Cottier (10144917) Jørgen Berge (235355) Øystein Varpe (8009813) 2021-02-15T17:49:25Z https://doi.org/10.6084/m9.figshare.14035971.v1 unknown https://figshare.com/articles/journal_contribution/Supplementary_methods_and_figures_from_A_marine_zooplankton_community_vertically_structured_by_light_across_diel_to_interannual_timescales/14035971 doi:10.6084/m9.figshare.14035971.v1 CC BY 4.0 CC-BY Environmental Science Ecology Animal Behaviour arctic zooplankton isolume predation migration Text Journal contribution 2021 ftsmithonian https://doi.org/10.6084/m9.figshare.14035971.v1 2021-02-26T11:25:29Z The predation risk of many aquatic taxa is dominated by visually searching predators, commonly a function of ambient light. Several studies propose that changes in visual predation will become a major climate-change impact on polar marine ecosystems. The high Arctic experiences extreme seasonality in the light environment, from 24-h light to 24-h darkness, and therefore provides a natural laboratory for studying light and predation risk over diel to seasonal timescales. Here, we show that zooplankton (observed using acoustics) in an Arctic fjord position themselves vertically in relation to light. A single isolume (depth-varying line of constant light intensity, the value of which is set at the lower limit of photobehaviour reponses of Calanus spp. and krill.) forms a ceiling on zooplankton distribution. The vertical distribution is structured by light across timescales, from the deepening of zooplankton populations at midday as the sun rises in spring, to the depth to which zooplankton ascend to feed during diel vertical migration. These results suggest that zooplankton might already follow a foraging strategy that will keep visual predation risk roughly constant under changing light conditions, such as those caused by the reduction of sea ice, but likely with energetic costs such as lost feeding opportunities due to altered habitat use. Other Non-Article Part of Journal/Newspaper Arctic Climate change Sea ice Zooplankton Unknown Arctic |
institution |
Open Polar |
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Unknown |
op_collection_id |
ftsmithonian |
language |
unknown |
topic |
Environmental Science Ecology Animal Behaviour arctic zooplankton isolume predation migration |
spellingShingle |
Environmental Science Ecology Animal Behaviour arctic zooplankton isolume predation migration Laura Hobbs (10144914) Neil S. Banas (9468017) Jonathan H. Cohen (7958483) Finlo R. Cottier (10144917) Jørgen Berge (235355) Øystein Varpe (8009813) Supplementary methods and figures from A marine zooplankton community vertically structured by light across diel to interannual timescales |
topic_facet |
Environmental Science Ecology Animal Behaviour arctic zooplankton isolume predation migration |
description |
The predation risk of many aquatic taxa is dominated by visually searching predators, commonly a function of ambient light. Several studies propose that changes in visual predation will become a major climate-change impact on polar marine ecosystems. The high Arctic experiences extreme seasonality in the light environment, from 24-h light to 24-h darkness, and therefore provides a natural laboratory for studying light and predation risk over diel to seasonal timescales. Here, we show that zooplankton (observed using acoustics) in an Arctic fjord position themselves vertically in relation to light. A single isolume (depth-varying line of constant light intensity, the value of which is set at the lower limit of photobehaviour reponses of Calanus spp. and krill.) forms a ceiling on zooplankton distribution. The vertical distribution is structured by light across timescales, from the deepening of zooplankton populations at midday as the sun rises in spring, to the depth to which zooplankton ascend to feed during diel vertical migration. These results suggest that zooplankton might already follow a foraging strategy that will keep visual predation risk roughly constant under changing light conditions, such as those caused by the reduction of sea ice, but likely with energetic costs such as lost feeding opportunities due to altered habitat use. |
format |
Other Non-Article Part of Journal/Newspaper |
author |
Laura Hobbs (10144914) Neil S. Banas (9468017) Jonathan H. Cohen (7958483) Finlo R. Cottier (10144917) Jørgen Berge (235355) Øystein Varpe (8009813) |
author_facet |
Laura Hobbs (10144914) Neil S. Banas (9468017) Jonathan H. Cohen (7958483) Finlo R. Cottier (10144917) Jørgen Berge (235355) Øystein Varpe (8009813) |
author_sort |
Laura Hobbs (10144914) |
title |
Supplementary methods and figures from A marine zooplankton community vertically structured by light across diel to interannual timescales |
title_short |
Supplementary methods and figures from A marine zooplankton community vertically structured by light across diel to interannual timescales |
title_full |
Supplementary methods and figures from A marine zooplankton community vertically structured by light across diel to interannual timescales |
title_fullStr |
Supplementary methods and figures from A marine zooplankton community vertically structured by light across diel to interannual timescales |
title_full_unstemmed |
Supplementary methods and figures from A marine zooplankton community vertically structured by light across diel to interannual timescales |
title_sort |
supplementary methods and figures from a marine zooplankton community vertically structured by light across diel to interannual timescales |
publishDate |
2021 |
url |
https://doi.org/10.6084/m9.figshare.14035971.v1 |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic Climate change Sea ice Zooplankton |
genre_facet |
Arctic Climate change Sea ice Zooplankton |
op_relation |
https://figshare.com/articles/journal_contribution/Supplementary_methods_and_figures_from_A_marine_zooplankton_community_vertically_structured_by_light_across_diel_to_interannual_timescales/14035971 doi:10.6084/m9.figshare.14035971.v1 |
op_rights |
CC BY 4.0 |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.6084/m9.figshare.14035971.v1 |
_version_ |
1766325195739496448 |