Exploring the role of gelatinous zooplankton in Tomorrow’s Arctic Ocean
Gelatinous zooplankton or “jellies” (ctenophores, cnidarians, tunicates) are known to be major drivers of ecosystem changes. Increases in jelly biomass, referred to as “jellification”, have been observed in several marine ecosystems, causing, amongst others, the collapse of major fisheries. For the...
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ftawi:oai:epic.awi.de:56351 2023-05-15T14:27:39+02:00 Exploring the role of gelatinous zooplankton in Tomorrow’s Arctic Ocean Havermans, Charlotte Dischereit, Annkathrin Murray, Ayla Eschbach, Andrea Friedrich, Madlen Merten, Veronique Verhaegen, Gerlien Hoving, Henk-Jan T. Pantiukhin, Dmitrii 2021-09-14 https://epic.awi.de/id/eprint/56351/ https://hdl.handle.net/10013/epic.b6f89f74-4070-4c4f-b0b1-ee43d4cc56d0 unknown Havermans, C. orcid:0000-0002-1126-4074 , Dischereit, A. orcid:0000-0002-6158-0825 , Murray, A. orcid:0000-0002-9134-7768 , Eschbach, A. , Friedrich, M. , Merten, V. , Verhaegen, G. , Hoving, H. J. T. and Pantiukhin, D. orcid:0000-0002-3427-8188 (2021) Exploring the role of gelatinous zooplankton in Tomorrow’s Arctic Ocean , 16th Deep-Sea Biology Symposium, Brest, France, 12 September 2021 - 17 September 2021 . hdl:10013/epic.b6f89f74-4070-4c4f-b0b1-ee43d4cc56d0 EPIC316th Deep-Sea Biology Symposium, Brest, France, 2021-09-12-2021-09-17 Conference notRev 2021 ftawi 2022-10-09T23:12:45Z Gelatinous zooplankton or “jellies” (ctenophores, cnidarians, tunicates) are known to be major drivers of ecosystem changes. Increases in jelly biomass, referred to as “jellification”, have been observed in several marine ecosystems, causing, amongst others, the collapse of major fisheries. For the Arctic region, abundance data on jellies are virtually non-existent, impeding our ability to detect changes of a similar magnitude. To better understand the role of jellies in the Arctic seas, the Helmholtz Young Investigator Group ARJEL aims to combine the most recent technologies in optics, acoustics, and environmental DNA (eDNA) analyses. Based on data collected during recent international campaigns, we attempt to link distributional patterns of jellies to oceanographic features and sea ice. Furthermore, we apply species distribution models to a broad set of archived data to understand observed species and community patterns and to predict changes under future climate-change scenarios. The role of jellies in the Arctic food web and their importance as prey for planktonic predators and fish is assessed with molecular diet studies, which will improve food web models currently neglecting jellies as major predators and prey. We also explore the genetic connectivity of dominant jelly species across the Arctic Ocean and its adjacent seas. An overview of the project’s goals, methods and first results will be given. Our ongoing research foci include: 1. the comparison of species composition and abundances of ctenophores and cnidarians in Arctic vs. Atlantic-influenced Svalbard fjords to better understand the impact of the ongoing Atlantification of the Arctic; and 2. the comparison between optical methods, net catches and eDNA for assessing jelly diversity and abundances. Conference Object Arctic Arctic Arctic Ocean Climate change Sea ice Svalbard Zooplankton Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center) Arctic Arctic Ocean Svalbard |
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Open Polar |
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Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center) |
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ftawi |
language |
unknown |
description |
Gelatinous zooplankton or “jellies” (ctenophores, cnidarians, tunicates) are known to be major drivers of ecosystem changes. Increases in jelly biomass, referred to as “jellification”, have been observed in several marine ecosystems, causing, amongst others, the collapse of major fisheries. For the Arctic region, abundance data on jellies are virtually non-existent, impeding our ability to detect changes of a similar magnitude. To better understand the role of jellies in the Arctic seas, the Helmholtz Young Investigator Group ARJEL aims to combine the most recent technologies in optics, acoustics, and environmental DNA (eDNA) analyses. Based on data collected during recent international campaigns, we attempt to link distributional patterns of jellies to oceanographic features and sea ice. Furthermore, we apply species distribution models to a broad set of archived data to understand observed species and community patterns and to predict changes under future climate-change scenarios. The role of jellies in the Arctic food web and their importance as prey for planktonic predators and fish is assessed with molecular diet studies, which will improve food web models currently neglecting jellies as major predators and prey. We also explore the genetic connectivity of dominant jelly species across the Arctic Ocean and its adjacent seas. An overview of the project’s goals, methods and first results will be given. Our ongoing research foci include: 1. the comparison of species composition and abundances of ctenophores and cnidarians in Arctic vs. Atlantic-influenced Svalbard fjords to better understand the impact of the ongoing Atlantification of the Arctic; and 2. the comparison between optical methods, net catches and eDNA for assessing jelly diversity and abundances. |
format |
Conference Object |
author |
Havermans, Charlotte Dischereit, Annkathrin Murray, Ayla Eschbach, Andrea Friedrich, Madlen Merten, Veronique Verhaegen, Gerlien Hoving, Henk-Jan T. Pantiukhin, Dmitrii |
spellingShingle |
Havermans, Charlotte Dischereit, Annkathrin Murray, Ayla Eschbach, Andrea Friedrich, Madlen Merten, Veronique Verhaegen, Gerlien Hoving, Henk-Jan T. Pantiukhin, Dmitrii Exploring the role of gelatinous zooplankton in Tomorrow’s Arctic Ocean |
author_facet |
Havermans, Charlotte Dischereit, Annkathrin Murray, Ayla Eschbach, Andrea Friedrich, Madlen Merten, Veronique Verhaegen, Gerlien Hoving, Henk-Jan T. Pantiukhin, Dmitrii |
author_sort |
Havermans, Charlotte |
title |
Exploring the role of gelatinous zooplankton in Tomorrow’s Arctic Ocean |
title_short |
Exploring the role of gelatinous zooplankton in Tomorrow’s Arctic Ocean |
title_full |
Exploring the role of gelatinous zooplankton in Tomorrow’s Arctic Ocean |
title_fullStr |
Exploring the role of gelatinous zooplankton in Tomorrow’s Arctic Ocean |
title_full_unstemmed |
Exploring the role of gelatinous zooplankton in Tomorrow’s Arctic Ocean |
title_sort |
exploring the role of gelatinous zooplankton in tomorrow’s arctic ocean |
publishDate |
2021 |
url |
https://epic.awi.de/id/eprint/56351/ https://hdl.handle.net/10013/epic.b6f89f74-4070-4c4f-b0b1-ee43d4cc56d0 |
geographic |
Arctic Arctic Ocean Svalbard |
geographic_facet |
Arctic Arctic Ocean Svalbard |
genre |
Arctic Arctic Arctic Ocean Climate change Sea ice Svalbard Zooplankton |
genre_facet |
Arctic Arctic Arctic Ocean Climate change Sea ice Svalbard Zooplankton |
op_source |
EPIC316th Deep-Sea Biology Symposium, Brest, France, 2021-09-12-2021-09-17 |
op_relation |
Havermans, C. orcid:0000-0002-1126-4074 , Dischereit, A. orcid:0000-0002-6158-0825 , Murray, A. orcid:0000-0002-9134-7768 , Eschbach, A. , Friedrich, M. , Merten, V. , Verhaegen, G. , Hoving, H. J. T. and Pantiukhin, D. orcid:0000-0002-3427-8188 (2021) Exploring the role of gelatinous zooplankton in Tomorrow’s Arctic Ocean , 16th Deep-Sea Biology Symposium, Brest, France, 12 September 2021 - 17 September 2021 . hdl:10013/epic.b6f89f74-4070-4c4f-b0b1-ee43d4cc56d0 |
_version_ |
1766301481955229696 |