HORIZONS Photoperiod may constrain the effect of global warming in arctic marine systems
Scenarios for climate change predict that global warming drives biogeographic boundaries polewards. However, reliable predictions of marine food web responses to climate change require understanding of the coupling mechanisms between trophic levels. The Arctic is characterized by extreme light regim...
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ftciteseerx:oai:CiteSeerX.psu:10.1.1.517.6041 2023-05-15T14:39:34+02:00 HORIZONS Photoperiod may constrain the effect of global warming in arctic marine systems Stein Kaartvedt The Pennsylvania State University CiteSeerX Archives application/pdf http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.517.6041 http://plankt.oxfordjournals.org/content/30/11/1203.full.pdf en eng http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.517.6041 http://plankt.oxfordjournals.org/content/30/11/1203.full.pdf Metadata may be used without restrictions as long as the oai identifier remains attached to it. http://plankt.oxfordjournals.org/content/30/11/1203.full.pdf e.g. Beaugrand et al 2002 Perry et al 2005 although text ftciteseerx 2016-01-08T09:56:33Z Scenarios for climate change predict that global warming drives biogeographic boundaries polewards. However, reliable predictions of marine food web responses to climate change require understanding of the coupling mechanisms between trophic levels. The Arctic is characterized by extreme light regime (photoperiod) as well as extreme (low) temperatures, both with profound bearing on pelagic ecology but only temperature being affected by climate change. Here, I address the potential impact by the light climate on mesopelagic (mid-water) planktivorous fish and as a result their plankton prey. Mesopelagic fish abound in all oceans, except for the Arctic. I hypothesize that their lack of success in this environment is due to inferior feeding conditions imposed by the extreme light climate at high latitudes. Since photoperiod is unaffected by climate change mesopelagic fish may continue to be scarce, and large copepods such as Arctic Calanus spp. will continue to prevail even in a warmer climate. This hypothesis of photoperiod constraints on the effect of global warming in Arctic marine ecosystems may be tested in fjords with different temperatures and light conditions. Text Arctic Climate change Global warming Copepods Unknown Arctic |
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e.g. Beaugrand et al 2002 Perry et al 2005 although |
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e.g. Beaugrand et al 2002 Perry et al 2005 although Stein Kaartvedt HORIZONS Photoperiod may constrain the effect of global warming in arctic marine systems |
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e.g. Beaugrand et al 2002 Perry et al 2005 although |
description |
Scenarios for climate change predict that global warming drives biogeographic boundaries polewards. However, reliable predictions of marine food web responses to climate change require understanding of the coupling mechanisms between trophic levels. The Arctic is characterized by extreme light regime (photoperiod) as well as extreme (low) temperatures, both with profound bearing on pelagic ecology but only temperature being affected by climate change. Here, I address the potential impact by the light climate on mesopelagic (mid-water) planktivorous fish and as a result their plankton prey. Mesopelagic fish abound in all oceans, except for the Arctic. I hypothesize that their lack of success in this environment is due to inferior feeding conditions imposed by the extreme light climate at high latitudes. Since photoperiod is unaffected by climate change mesopelagic fish may continue to be scarce, and large copepods such as Arctic Calanus spp. will continue to prevail even in a warmer climate. This hypothesis of photoperiod constraints on the effect of global warming in Arctic marine ecosystems may be tested in fjords with different temperatures and light conditions. |
author2 |
The Pennsylvania State University CiteSeerX Archives |
format |
Text |
author |
Stein Kaartvedt |
author_facet |
Stein Kaartvedt |
author_sort |
Stein Kaartvedt |
title |
HORIZONS Photoperiod may constrain the effect of global warming in arctic marine systems |
title_short |
HORIZONS Photoperiod may constrain the effect of global warming in arctic marine systems |
title_full |
HORIZONS Photoperiod may constrain the effect of global warming in arctic marine systems |
title_fullStr |
HORIZONS Photoperiod may constrain the effect of global warming in arctic marine systems |
title_full_unstemmed |
HORIZONS Photoperiod may constrain the effect of global warming in arctic marine systems |
title_sort |
horizons photoperiod may constrain the effect of global warming in arctic marine systems |
url |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.517.6041 http://plankt.oxfordjournals.org/content/30/11/1203.full.pdf |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic Climate change Global warming Copepods |
genre_facet |
Arctic Climate change Global warming Copepods |
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http://plankt.oxfordjournals.org/content/30/11/1203.full.pdf |
op_relation |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.517.6041 http://plankt.oxfordjournals.org/content/30/11/1203.full.pdf |
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Metadata may be used without restrictions as long as the oai identifier remains attached to it. |
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1766311550318018560 |