Timing of Ice Retreat Determines Summer State of Zooplankton Community in the Ob Estuary (the Kara Sea, Siberian Arctic)
In the estuaries of large Siberian rivers, ice coverage and the timing of ice retreat have varied in recent decades under the ongoing climate change. The seasonal development and functioning of the mesozooplankton community depend to a great extent on the timing of ice retreat. In the Arctic estuari...
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2023
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ftdoajarticles:oai:doaj.org/article:24c16ca3623f4bd0a05bc479c3937796 2023-06-11T04:08:40+02:00 Timing of Ice Retreat Determines Summer State of Zooplankton Community in the Ob Estuary (the Kara Sea, Siberian Arctic) Alexander Drits Anna Pasternak Elena Arashkevich Anastasia Amelina Mikhail Flint 2023-05-01T00:00:00Z https://doi.org/10.3390/d15050674 https://doaj.org/article/24c16ca3623f4bd0a05bc479c3937796 EN eng MDPI AG https://www.mdpi.com/1424-2818/15/5/674 https://doaj.org/toc/1424-2818 doi:10.3390/d15050674 1424-2818 https://doaj.org/article/24c16ca3623f4bd0a05bc479c3937796 Diversity, Vol 15, Iss 674, p 674 (2023) Arctic estuary zooplankton ecology distribution grazing ice melt Biology (General) QH301-705.5 article 2023 ftdoajarticles https://doi.org/10.3390/d15050674 2023-05-28T00:34:15Z In the estuaries of large Siberian rivers, ice coverage and the timing of ice retreat have varied in recent decades under the ongoing climate change. The seasonal development and functioning of the mesozooplankton community depend to a great extent on the timing of ice retreat. In the Arctic estuaries, the response of zooplankton to the timing of ice melt remains unclear. An earlier ice retreat was suggested to result in an advanced seasonal development of zooplankton, and higher biomass and feeding rates. Zooplankton composition, biomass, demography and grazing (assessed with the gut fluorescent approach) were studied in the Ob Estuary in July 2019 (“typical” ice retreat time). The obtained results were compared with the published data for July 2016 (ice retreat three weeks earlier). Zooplankton biomass in 2019 was considerably lower than in 2016, while species composition was similar; dominant populations were at an earlier stage of development. Herbivorous feeding of the dominant copepod, Limnocalanus macrurus , was also lower in 2019. The consequences of an earlier ice melt and increased temperature on seasonal population dynamics of the dominant brackish-water species are discussed. Our findings demonstrate that zooplankton communities in the Arctic estuaries are highly sensitive to the environmental changes associated with early sea-ice reduction. Article in Journal/Newspaper Arctic Climate change Kara Sea Sea ice Zooplankton Directory of Open Access Journals: DOAJ Articles Arctic Kara Sea Diversity 15 5 674 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
Arctic estuary zooplankton ecology distribution grazing ice melt Biology (General) QH301-705.5 |
spellingShingle |
Arctic estuary zooplankton ecology distribution grazing ice melt Biology (General) QH301-705.5 Alexander Drits Anna Pasternak Elena Arashkevich Anastasia Amelina Mikhail Flint Timing of Ice Retreat Determines Summer State of Zooplankton Community in the Ob Estuary (the Kara Sea, Siberian Arctic) |
topic_facet |
Arctic estuary zooplankton ecology distribution grazing ice melt Biology (General) QH301-705.5 |
description |
In the estuaries of large Siberian rivers, ice coverage and the timing of ice retreat have varied in recent decades under the ongoing climate change. The seasonal development and functioning of the mesozooplankton community depend to a great extent on the timing of ice retreat. In the Arctic estuaries, the response of zooplankton to the timing of ice melt remains unclear. An earlier ice retreat was suggested to result in an advanced seasonal development of zooplankton, and higher biomass and feeding rates. Zooplankton composition, biomass, demography and grazing (assessed with the gut fluorescent approach) were studied in the Ob Estuary in July 2019 (“typical” ice retreat time). The obtained results were compared with the published data for July 2016 (ice retreat three weeks earlier). Zooplankton biomass in 2019 was considerably lower than in 2016, while species composition was similar; dominant populations were at an earlier stage of development. Herbivorous feeding of the dominant copepod, Limnocalanus macrurus , was also lower in 2019. The consequences of an earlier ice melt and increased temperature on seasonal population dynamics of the dominant brackish-water species are discussed. Our findings demonstrate that zooplankton communities in the Arctic estuaries are highly sensitive to the environmental changes associated with early sea-ice reduction. |
format |
Article in Journal/Newspaper |
author |
Alexander Drits Anna Pasternak Elena Arashkevich Anastasia Amelina Mikhail Flint |
author_facet |
Alexander Drits Anna Pasternak Elena Arashkevich Anastasia Amelina Mikhail Flint |
author_sort |
Alexander Drits |
title |
Timing of Ice Retreat Determines Summer State of Zooplankton Community in the Ob Estuary (the Kara Sea, Siberian Arctic) |
title_short |
Timing of Ice Retreat Determines Summer State of Zooplankton Community in the Ob Estuary (the Kara Sea, Siberian Arctic) |
title_full |
Timing of Ice Retreat Determines Summer State of Zooplankton Community in the Ob Estuary (the Kara Sea, Siberian Arctic) |
title_fullStr |
Timing of Ice Retreat Determines Summer State of Zooplankton Community in the Ob Estuary (the Kara Sea, Siberian Arctic) |
title_full_unstemmed |
Timing of Ice Retreat Determines Summer State of Zooplankton Community in the Ob Estuary (the Kara Sea, Siberian Arctic) |
title_sort |
timing of ice retreat determines summer state of zooplankton community in the ob estuary (the kara sea, siberian arctic) |
publisher |
MDPI AG |
publishDate |
2023 |
url |
https://doi.org/10.3390/d15050674 https://doaj.org/article/24c16ca3623f4bd0a05bc479c3937796 |
geographic |
Arctic Kara Sea |
geographic_facet |
Arctic Kara Sea |
genre |
Arctic Climate change Kara Sea Sea ice Zooplankton |
genre_facet |
Arctic Climate change Kara Sea Sea ice Zooplankton |
op_source |
Diversity, Vol 15, Iss 674, p 674 (2023) |
op_relation |
https://www.mdpi.com/1424-2818/15/5/674 https://doaj.org/toc/1424-2818 doi:10.3390/d15050674 1424-2818 https://doaj.org/article/24c16ca3623f4bd0a05bc479c3937796 |
op_doi |
https://doi.org/10.3390/d15050674 |
container_title |
Diversity |
container_volume |
15 |
container_issue |
5 |
container_start_page |
674 |
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1768382098592235520 |