Trophic indices for micronektonic fishes reveal their dependence on the microbial system in the North Atlantic.
This research was funded by projects BATHYPELAGIC (CTM2016-78853-R) from the Plan Estatal de I+D+I (Spain), SUMMER (Grant Agreement 817806) and TRIATLAS (Grant Agreement 817578), from the European Union (Horizon 2020 Research and Innovation Programme), and Grant Number IN607A2018/2 from the Axencia...
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Centro Oceanográfico de A Coruña
2021
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Online Access: | http://hdl.handle.net/10508/11652 https://doi.org/10.1038/s41598-021-87767-x |
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ftieo:oai:repositorio.ieo.es:10508/11652 2023-05-15T17:35:56+02:00 Trophic indices for micronektonic fishes reveal their dependence on the microbial system in the North Atlantic. Bode, A. (Antonio) Olivar, M.P. (María Pilar) Hernández-León, S. 2021-04-19 http://hdl.handle.net/10508/11652 https://doi.org/10.1038/s41598-021-87767-x eng eng Centro Oceanográfico de A Coruña https://doi.org/10.1038/s41598-021-87767-x CTM2016-78853-R, info:eu-repo/grantAgreement/EC/H2020/817806, info:eu-repo/grantAgreement/EC/H2020/817578, IN607A2018/2 2045-2322 http://hdl.handle.net/10508/11652 Scientific Reports, 11. 2021: 1-10 doi:10.1038/s41598-021-87767-x Atribución-NoComercial-SinDerivadas 3.0 España http://creativecommons.org/licenses/by-nc-nd/3.0/es/ openAccess CC-BY-NC-ND fish food webs consumers microorganisms scales article 2021 ftieo https://doi.org/10.1038/s41598-021-87767-x 2022-07-26T23:49:13Z This research was funded by projects BATHYPELAGIC (CTM2016-78853-R) from the Plan Estatal de I+D+I (Spain), SUMMER (Grant Agreement 817806) and TRIATLAS (Grant Agreement 817578), from the European Union (Horizon 2020 Research and Innovation Programme), and Grant Number IN607A2018/2 from the Axencia Galega de Innovación (GAIN, Xunta de Galicia, Spain). The importance of microbes for the functioning of oceanic food webs is well established, but their relevance for top consumers is still poorly appreciated. Large differences in individual size, and consequently in growth rates and the relevant spatial and temporal scales involved, make the integration of microorganisms and large metazoans in a common food web framework difficult. Using stable isotopes, this study estimated the trophic position of 13 species of micronektonic fishes to examine the microbial and metazoan contribution to mid trophic level consumers. Vertically migrant species displayed higher trophic positions than non-migrant species in all depth layers. The estimated trophic positions agreed well with those from the literature, but all species displayed mean increases between 0.5 and 0.8 trophic positions when taking into account microbial trophic steps. Trophic position, but not the relative importance of the microbial food web, increased with individual size, suggesting that current estimates of the trophic position of top consumers and of the length of oceanic food webs are too low because they are based only on metazoan trophic steps. This finding calls for a review of trophic position estimates and of the efficiency of trophic transfers along oceanic food webs. This research was funded by projects BATHYPELAGIC (CTM2016-78853-R) from the Plan Estatal de I+D+I (Spain), SUMMER (Grant Agreement 817806) and TRIATLAS (Grant Agreement 817578), from the European Union (Horizon 2020 Research and Innovation Programme), and Grant Number IN607A2018/2 from the Axencia Galega de Innovación (GAIN, Xunta de Galicia, Spain). En prensa 2,927 Article in Journal/Newspaper North Atlantic Instituto Español de Oceanografía: e-IEO Scientific Reports 11 1 |
institution |
Open Polar |
collection |
Instituto Español de Oceanografía: e-IEO |
op_collection_id |
ftieo |
language |
English |
topic |
fish food webs consumers microorganisms scales |
spellingShingle |
fish food webs consumers microorganisms scales Bode, A. (Antonio) Olivar, M.P. (María Pilar) Hernández-León, S. Trophic indices for micronektonic fishes reveal their dependence on the microbial system in the North Atlantic. |
topic_facet |
fish food webs consumers microorganisms scales |
description |
This research was funded by projects BATHYPELAGIC (CTM2016-78853-R) from the Plan Estatal de I+D+I (Spain), SUMMER (Grant Agreement 817806) and TRIATLAS (Grant Agreement 817578), from the European Union (Horizon 2020 Research and Innovation Programme), and Grant Number IN607A2018/2 from the Axencia Galega de Innovación (GAIN, Xunta de Galicia, Spain). The importance of microbes for the functioning of oceanic food webs is well established, but their relevance for top consumers is still poorly appreciated. Large differences in individual size, and consequently in growth rates and the relevant spatial and temporal scales involved, make the integration of microorganisms and large metazoans in a common food web framework difficult. Using stable isotopes, this study estimated the trophic position of 13 species of micronektonic fishes to examine the microbial and metazoan contribution to mid trophic level consumers. Vertically migrant species displayed higher trophic positions than non-migrant species in all depth layers. The estimated trophic positions agreed well with those from the literature, but all species displayed mean increases between 0.5 and 0.8 trophic positions when taking into account microbial trophic steps. Trophic position, but not the relative importance of the microbial food web, increased with individual size, suggesting that current estimates of the trophic position of top consumers and of the length of oceanic food webs are too low because they are based only on metazoan trophic steps. This finding calls for a review of trophic position estimates and of the efficiency of trophic transfers along oceanic food webs. This research was funded by projects BATHYPELAGIC (CTM2016-78853-R) from the Plan Estatal de I+D+I (Spain), SUMMER (Grant Agreement 817806) and TRIATLAS (Grant Agreement 817578), from the European Union (Horizon 2020 Research and Innovation Programme), and Grant Number IN607A2018/2 from the Axencia Galega de Innovación (GAIN, Xunta de Galicia, Spain). En prensa 2,927 |
format |
Article in Journal/Newspaper |
author |
Bode, A. (Antonio) Olivar, M.P. (María Pilar) Hernández-León, S. |
author_facet |
Bode, A. (Antonio) Olivar, M.P. (María Pilar) Hernández-León, S. |
author_sort |
Bode, A. (Antonio) |
title |
Trophic indices for micronektonic fishes reveal their dependence on the microbial system in the North Atlantic. |
title_short |
Trophic indices for micronektonic fishes reveal their dependence on the microbial system in the North Atlantic. |
title_full |
Trophic indices for micronektonic fishes reveal their dependence on the microbial system in the North Atlantic. |
title_fullStr |
Trophic indices for micronektonic fishes reveal their dependence on the microbial system in the North Atlantic. |
title_full_unstemmed |
Trophic indices for micronektonic fishes reveal their dependence on the microbial system in the North Atlantic. |
title_sort |
trophic indices for micronektonic fishes reveal their dependence on the microbial system in the north atlantic. |
publisher |
Centro Oceanográfico de A Coruña |
publishDate |
2021 |
url |
http://hdl.handle.net/10508/11652 https://doi.org/10.1038/s41598-021-87767-x |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_relation |
https://doi.org/10.1038/s41598-021-87767-x CTM2016-78853-R, info:eu-repo/grantAgreement/EC/H2020/817806, info:eu-repo/grantAgreement/EC/H2020/817578, IN607A2018/2 2045-2322 http://hdl.handle.net/10508/11652 Scientific Reports, 11. 2021: 1-10 doi:10.1038/s41598-021-87767-x |
op_rights |
Atribución-NoComercial-SinDerivadas 3.0 España http://creativecommons.org/licenses/by-nc-nd/3.0/es/ openAccess |
op_rightsnorm |
CC-BY-NC-ND |
op_doi |
https://doi.org/10.1038/s41598-021-87767-x |
container_title |
Scientific Reports |
container_volume |
11 |
container_issue |
1 |
_version_ |
1766135252432977920 |