Plankton food webs in the oligotrophic Gulf of Mexico spawning grounds of Atlantic bluefin tuna
We used linear inverse ecosystem modeling techniques to assimilate data from extensive Lagrangian field experiments into a mass-balance constrained food web for the Gulf of Mexico open-ocean ecosystem. This region is highly oligotrophic, yet Atlantic bluefin tuna (ABT) travel long distances from fee...
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ftpubmed:oai:pubmedcentral.nih.gov:9424712 2023-05-15T17:33:01+02:00 Plankton food webs in the oligotrophic Gulf of Mexico spawning grounds of Atlantic bluefin tuna Stukel, Michael R Gerard, Trika Kelly, Thomas B Knapp, Angela N Laiz-Carrión, Raúl Lamkin, John T Landry, Michael R Malca, Estrella Selph, Karen E Shiroza, Akihiro Shropshire, Taylor A Swalethorp, Rasmus 2021-04-22 http://www.ncbi.nlm.nih.gov/pmc/articles/PMC9424712/ http://www.ncbi.nlm.nih.gov/pubmed/36045950 https://doi.org/10.1093/plankt/fbab023 en eng Oxford University Press http://www.ncbi.nlm.nih.gov/pmc/articles/PMC9424712/ http://www.ncbi.nlm.nih.gov/pubmed/36045950 http://dx.doi.org/10.1093/plankt/fbab023 © The Author(s) 2021. Published by Oxford University Press. https://creativecommons.org/licenses/by/4.0/This is an Open Access article distributed under the terms of the Creative Commons Attribution License (https://creativecommons.org/licenses/by/4.0/), which permits unrestricted reuse, distribution, and reproduction in any medium, provided the original work is properly cited. CC-BY J Plankton Res Original Article Text 2021 ftpubmed https://doi.org/10.1093/plankt/fbab023 2022-09-04T01:00:49Z We used linear inverse ecosystem modeling techniques to assimilate data from extensive Lagrangian field experiments into a mass-balance constrained food web for the Gulf of Mexico open-ocean ecosystem. This region is highly oligotrophic, yet Atlantic bluefin tuna (ABT) travel long distances from feeding grounds in the North Atlantic to spawn there. Our results show extensive nutrient regeneration fueling primary productivity (mostly by cyanobacteria and other picophytoplankton) in the upper euphotic zone. The food web is dominated by the microbial loop (>70% of net primary productivity is respired by heterotrophic bacteria and protists that feed on them). By contrast, herbivorous food web pathways from phytoplankton to metazoan zooplankton process <10% of the net primary production in the mixed layer. Nevertheless, ABT larvae feed preferentially on podonid cladocerans and other suspension-feeding zooplankton, which in turn derive much of their nutrition from nano- and micro-phytoplankton (mixotrophic flagellates, and to a lesser extent, diatoms). This allows ABT larvae to maintain a comparatively low trophic level (~4.2 for preflexion and postflexion larvae), which increases trophic transfer from phytoplankton to larval fish. Text North Atlantic PubMed Central (PMC) Journal of Plankton Research 44 5 763 781 |
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English |
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Original Article |
spellingShingle |
Original Article Stukel, Michael R Gerard, Trika Kelly, Thomas B Knapp, Angela N Laiz-Carrión, Raúl Lamkin, John T Landry, Michael R Malca, Estrella Selph, Karen E Shiroza, Akihiro Shropshire, Taylor A Swalethorp, Rasmus Plankton food webs in the oligotrophic Gulf of Mexico spawning grounds of Atlantic bluefin tuna |
topic_facet |
Original Article |
description |
We used linear inverse ecosystem modeling techniques to assimilate data from extensive Lagrangian field experiments into a mass-balance constrained food web for the Gulf of Mexico open-ocean ecosystem. This region is highly oligotrophic, yet Atlantic bluefin tuna (ABT) travel long distances from feeding grounds in the North Atlantic to spawn there. Our results show extensive nutrient regeneration fueling primary productivity (mostly by cyanobacteria and other picophytoplankton) in the upper euphotic zone. The food web is dominated by the microbial loop (>70% of net primary productivity is respired by heterotrophic bacteria and protists that feed on them). By contrast, herbivorous food web pathways from phytoplankton to metazoan zooplankton process <10% of the net primary production in the mixed layer. Nevertheless, ABT larvae feed preferentially on podonid cladocerans and other suspension-feeding zooplankton, which in turn derive much of their nutrition from nano- and micro-phytoplankton (mixotrophic flagellates, and to a lesser extent, diatoms). This allows ABT larvae to maintain a comparatively low trophic level (~4.2 for preflexion and postflexion larvae), which increases trophic transfer from phytoplankton to larval fish. |
format |
Text |
author |
Stukel, Michael R Gerard, Trika Kelly, Thomas B Knapp, Angela N Laiz-Carrión, Raúl Lamkin, John T Landry, Michael R Malca, Estrella Selph, Karen E Shiroza, Akihiro Shropshire, Taylor A Swalethorp, Rasmus |
author_facet |
Stukel, Michael R Gerard, Trika Kelly, Thomas B Knapp, Angela N Laiz-Carrión, Raúl Lamkin, John T Landry, Michael R Malca, Estrella Selph, Karen E Shiroza, Akihiro Shropshire, Taylor A Swalethorp, Rasmus |
author_sort |
Stukel, Michael R |
title |
Plankton food webs in the oligotrophic Gulf of Mexico spawning grounds of Atlantic bluefin tuna |
title_short |
Plankton food webs in the oligotrophic Gulf of Mexico spawning grounds of Atlantic bluefin tuna |
title_full |
Plankton food webs in the oligotrophic Gulf of Mexico spawning grounds of Atlantic bluefin tuna |
title_fullStr |
Plankton food webs in the oligotrophic Gulf of Mexico spawning grounds of Atlantic bluefin tuna |
title_full_unstemmed |
Plankton food webs in the oligotrophic Gulf of Mexico spawning grounds of Atlantic bluefin tuna |
title_sort |
plankton food webs in the oligotrophic gulf of mexico spawning grounds of atlantic bluefin tuna |
publisher |
Oxford University Press |
publishDate |
2021 |
url |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC9424712/ http://www.ncbi.nlm.nih.gov/pubmed/36045950 https://doi.org/10.1093/plankt/fbab023 |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_source |
J Plankton Res |
op_relation |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC9424712/ http://www.ncbi.nlm.nih.gov/pubmed/36045950 http://dx.doi.org/10.1093/plankt/fbab023 |
op_rights |
© The Author(s) 2021. Published by Oxford University Press. https://creativecommons.org/licenses/by/4.0/This is an Open Access article distributed under the terms of the Creative Commons Attribution License (https://creativecommons.org/licenses/by/4.0/), which permits unrestricted reuse, distribution, and reproduction in any medium, provided the original work is properly cited. |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1093/plankt/fbab023 |
container_title |
Journal of Plankton Research |
container_volume |
44 |
container_issue |
5 |
container_start_page |
763 |
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781 |
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1766131381960704000 |