Long-term oscillations in the normalized biomass-size spectrum reveal the impact of oligotrophication on zooplankton trophic structure in the North Atlantic Subtropical Gyre
Ocean warming of the North Atlantic Subtropical Gyre (NASG) induced oligotrophication and a decrease in integrated net primary production during the 2010s, potentially affecting higher trophic levels. We analyzed long-term records (1994-2019) of daytime and nighttime zooplankton biomass in five size...
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Online Access: | https://hdl.handle.net/2108/353464 https://doi.org/10.1016/j.marenvres.2023.106295 |
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ftunivromatorver:oai:art.torvergata.it:2108/353464 2024-06-09T07:48:05+00:00 Long-term oscillations in the normalized biomass-size spectrum reveal the impact of oligotrophication on zooplankton trophic structure in the North Atlantic Subtropical Gyre Russo L. Bellardini D. Steinberg D. K. Congestri R. Lomas M. W. D'Alelio D. Russo, L Bellardini, D Steinberg, Dk Congestri, R Lomas, Mw D'Alelio, D 2024 https://hdl.handle.net/2108/353464 https://doi.org/10.1016/j.marenvres.2023.106295 eng eng Elsevier info:eu-repo/semantics/altIdentifier/pmid/38118377 info:eu-repo/semantics/altIdentifier/wos/WOS:001142519600001 volume:193 numberofpages:8 journal:MARINE ENVIRONMENTAL RESEARCH https://hdl.handle.net/2108/353464 doi:10.1016/j.marenvres.2023.106295 info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-85180410880 Bermuda Atlantic time-series study (BATS) Climate Food webs Plankton Sargasso Sea Settore BIO/01 info:eu-repo/semantics/article 2024 ftunivromatorver https://doi.org/10.1016/j.marenvres.2023.106295 2024-05-14T23:37:46Z Ocean warming of the North Atlantic Subtropical Gyre (NASG) induced oligotrophication and a decrease in integrated net primary production during the 2010s, potentially affecting higher trophic levels. We analyzed long-term records (1994-2019) of daytime and nighttime zooplankton biomass in five size classes from the NASG. Daytime biomass decreased in the three largest size classes during the 2010s, while decrease in nighttime biomass was less evident due to the relative stability in diel vertical migrator biomass. We used the normalized biomass size spectrum (NBSS) to estimate the relative transfer efficiency between trophic levels. The steepness of the NBSS slope at the end of the time series increased by 14% (daytime) and 24% (nighttime) from the maximum observed annual average values (2011 and 2009, respectively). This suggests oligotrophication during the 2010s led to a significant reduction in the transfer of biomass across trophic levels, with negative impacts on the NASG planktonic food web. Article in Journal/Newspaper North Atlantic Universitá degli Studi di Roma "Tor Vergata": ART - Archivio Istituzionale della Ricerca Marine Environmental Research 193 106295 |
institution |
Open Polar |
collection |
Universitá degli Studi di Roma "Tor Vergata": ART - Archivio Istituzionale della Ricerca |
op_collection_id |
ftunivromatorver |
language |
English |
topic |
Bermuda Atlantic time-series study (BATS) Climate Food webs Plankton Sargasso Sea Settore BIO/01 |
spellingShingle |
Bermuda Atlantic time-series study (BATS) Climate Food webs Plankton Sargasso Sea Settore BIO/01 Russo L. Bellardini D. Steinberg D. K. Congestri R. Lomas M. W. D'Alelio D. Long-term oscillations in the normalized biomass-size spectrum reveal the impact of oligotrophication on zooplankton trophic structure in the North Atlantic Subtropical Gyre |
topic_facet |
Bermuda Atlantic time-series study (BATS) Climate Food webs Plankton Sargasso Sea Settore BIO/01 |
description |
Ocean warming of the North Atlantic Subtropical Gyre (NASG) induced oligotrophication and a decrease in integrated net primary production during the 2010s, potentially affecting higher trophic levels. We analyzed long-term records (1994-2019) of daytime and nighttime zooplankton biomass in five size classes from the NASG. Daytime biomass decreased in the three largest size classes during the 2010s, while decrease in nighttime biomass was less evident due to the relative stability in diel vertical migrator biomass. We used the normalized biomass size spectrum (NBSS) to estimate the relative transfer efficiency between trophic levels. The steepness of the NBSS slope at the end of the time series increased by 14% (daytime) and 24% (nighttime) from the maximum observed annual average values (2011 and 2009, respectively). This suggests oligotrophication during the 2010s led to a significant reduction in the transfer of biomass across trophic levels, with negative impacts on the NASG planktonic food web. |
author2 |
Russo, L Bellardini, D Steinberg, Dk Congestri, R Lomas, Mw D'Alelio, D |
format |
Article in Journal/Newspaper |
author |
Russo L. Bellardini D. Steinberg D. K. Congestri R. Lomas M. W. D'Alelio D. |
author_facet |
Russo L. Bellardini D. Steinberg D. K. Congestri R. Lomas M. W. D'Alelio D. |
author_sort |
Russo L. |
title |
Long-term oscillations in the normalized biomass-size spectrum reveal the impact of oligotrophication on zooplankton trophic structure in the North Atlantic Subtropical Gyre |
title_short |
Long-term oscillations in the normalized biomass-size spectrum reveal the impact of oligotrophication on zooplankton trophic structure in the North Atlantic Subtropical Gyre |
title_full |
Long-term oscillations in the normalized biomass-size spectrum reveal the impact of oligotrophication on zooplankton trophic structure in the North Atlantic Subtropical Gyre |
title_fullStr |
Long-term oscillations in the normalized biomass-size spectrum reveal the impact of oligotrophication on zooplankton trophic structure in the North Atlantic Subtropical Gyre |
title_full_unstemmed |
Long-term oscillations in the normalized biomass-size spectrum reveal the impact of oligotrophication on zooplankton trophic structure in the North Atlantic Subtropical Gyre |
title_sort |
long-term oscillations in the normalized biomass-size spectrum reveal the impact of oligotrophication on zooplankton trophic structure in the north atlantic subtropical gyre |
publisher |
Elsevier |
publishDate |
2024 |
url |
https://hdl.handle.net/2108/353464 https://doi.org/10.1016/j.marenvres.2023.106295 |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_relation |
info:eu-repo/semantics/altIdentifier/pmid/38118377 info:eu-repo/semantics/altIdentifier/wos/WOS:001142519600001 volume:193 numberofpages:8 journal:MARINE ENVIRONMENTAL RESEARCH https://hdl.handle.net/2108/353464 doi:10.1016/j.marenvres.2023.106295 info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-85180410880 |
op_doi |
https://doi.org/10.1016/j.marenvres.2023.106295 |
container_title |
Marine Environmental Research |
container_volume |
193 |
container_start_page |
106295 |
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1801379658167484416 |