Spatial patterns of plankton biomass and stable isotopes reflect the influence of the nitrogen-fixer Trichodesmium along the subtropical North Atlantic.
proyecto Malaspina-2010 (CSD2008-00077) del programa CONSOLIDER-INGENIO 2010, Ministerio de Ciencia e Innovación y proyecto EURO-BASIN (FP7-ENV-2010 264933) e Instituto Español de Oceanografia (IEO). C.M. recibió un contrato PFPI del IEO. The spatial variability of biomass and stable isotopes in pla...
Published in: | Journal of Plankton Research |
---|---|
Main Authors: | , , , , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Centro Oceanográfico de A Coruña
2014
|
Subjects: | |
Online Access: | http://hdl.handle.net/10508/2081 http://hdl.handle.net/10261/316539 https://doi.org/10.1093/plankt/fbt011 |
id |
ftcsic:oai:digital.csic.es:10261/316539 |
---|---|
record_format |
openpolar |
spelling |
ftcsic:oai:digital.csic.es:10261/316539 2024-02-11T10:06:20+01:00 Spatial patterns of plankton biomass and stable isotopes reflect the influence of the nitrogen-fixer Trichodesmium along the subtropical North Atlantic. Mompeán-de-la-Rosa M.C. (María del Carmen) Bode, A. (Antonio) Benítez-Barrios V.M. (Verónica María) Domínguez-Yanes J.F. (José Francisco) Escánez, J. (José) Fraile-Nuez, E. (Eugenio) Atlantic Ocean Central Atlantic Eastern Central Atlantic Canary Islands 2014-08-28T07:40:01Z http://hdl.handle.net/10508/2081 http://hdl.handle.net/10261/316539 https://doi.org/10.1093/plankt/fbt011 en eng Centro Oceanográfico de A Coruña http://www.sciencedirect.com/science/article/pii/S0048969712014982 FP7-ENV-2010 264933 0142-7873 http://hdl.handle.net/10508/2081 http://hdl.handle.net/10261/316539 doi:10.1093/plankt/fbt011 Journal of Plankton Research, 35. 2013: 513-525 20048 open plankton size subtropical stable isotopes Trichodesmium nitrogen research article SMUR SI 2014 ftcsic https://doi.org/10.1093/plankt/fbt011 2024-01-16T11:44:34Z proyecto Malaspina-2010 (CSD2008-00077) del programa CONSOLIDER-INGENIO 2010, Ministerio de Ciencia e Innovación y proyecto EURO-BASIN (FP7-ENV-2010 264933) e Instituto Español de Oceanografia (IEO). C.M. recibió un contrato PFPI del IEO. The spatial variability of biomass and stable isotopes in plankton size fractions in the upper 200 m was studied in a high spatial resolution transect along 24°N from the Canary Islands to Florida to determine nitrogen and carbon sources. Vertical advection of waters predominated in lateral zones, while the central Atlantic (30–70°W) was characterized by strong stratification and oligotrophic surface waters. Plankton biomass was low in the central zone and high on both the eastern and the western sides, with most of the variability due to either large (>2000 µm) or small plankton (<500 µm). Carbon isotopes reflected mainly the advection the deep water in lateral zones. Stable nitrogen isotopes showed a nearly symmetrical spatial distribution in all fractions, with the lowest values (δ15N < 1‰) in the central zone, and were inversely correlated with carbon stable isotopes (δ13C) and with the abundance of the nitrogen-fixer Trichodesmium. Diazotrophy was estimated to account for >50% of organic nitrogen in the central zone, and even >30% in the eastern and the western zones. The impact of diazotrophy increased with the size of the organisms, supporting the wide participation of all trophic levels in the processing of recently fixed nitrogen. These results indicate that atmospheric sources of carbon and nitrogen prevail over deep water sources in the subtropical North Atlantic and that the zone influenced by diazotrophy is much larger than reported in previous studies. CONSOLIDER-INGENIO, 7FP 1,7490 Article in Journal/Newspaper North Atlantic Digital.CSIC (Spanish National Research Council) Journal of Plankton Research 35 3 513 525 |
institution |
Open Polar |
collection |
Digital.CSIC (Spanish National Research Council) |
op_collection_id |
ftcsic |
language |
English |
topic |
plankton size subtropical stable isotopes Trichodesmium nitrogen |
spellingShingle |
plankton size subtropical stable isotopes Trichodesmium nitrogen Mompeán-de-la-Rosa M.C. (María del Carmen) Bode, A. (Antonio) Benítez-Barrios V.M. (Verónica María) Domínguez-Yanes J.F. (José Francisco) Escánez, J. (José) Fraile-Nuez, E. (Eugenio) Spatial patterns of plankton biomass and stable isotopes reflect the influence of the nitrogen-fixer Trichodesmium along the subtropical North Atlantic. |
topic_facet |
plankton size subtropical stable isotopes Trichodesmium nitrogen |
description |
proyecto Malaspina-2010 (CSD2008-00077) del programa CONSOLIDER-INGENIO 2010, Ministerio de Ciencia e Innovación y proyecto EURO-BASIN (FP7-ENV-2010 264933) e Instituto Español de Oceanografia (IEO). C.M. recibió un contrato PFPI del IEO. The spatial variability of biomass and stable isotopes in plankton size fractions in the upper 200 m was studied in a high spatial resolution transect along 24°N from the Canary Islands to Florida to determine nitrogen and carbon sources. Vertical advection of waters predominated in lateral zones, while the central Atlantic (30–70°W) was characterized by strong stratification and oligotrophic surface waters. Plankton biomass was low in the central zone and high on both the eastern and the western sides, with most of the variability due to either large (>2000 µm) or small plankton (<500 µm). Carbon isotopes reflected mainly the advection the deep water in lateral zones. Stable nitrogen isotopes showed a nearly symmetrical spatial distribution in all fractions, with the lowest values (δ15N < 1‰) in the central zone, and were inversely correlated with carbon stable isotopes (δ13C) and with the abundance of the nitrogen-fixer Trichodesmium. Diazotrophy was estimated to account for >50% of organic nitrogen in the central zone, and even >30% in the eastern and the western zones. The impact of diazotrophy increased with the size of the organisms, supporting the wide participation of all trophic levels in the processing of recently fixed nitrogen. These results indicate that atmospheric sources of carbon and nitrogen prevail over deep water sources in the subtropical North Atlantic and that the zone influenced by diazotrophy is much larger than reported in previous studies. CONSOLIDER-INGENIO, 7FP 1,7490 |
format |
Article in Journal/Newspaper |
author |
Mompeán-de-la-Rosa M.C. (María del Carmen) Bode, A. (Antonio) Benítez-Barrios V.M. (Verónica María) Domínguez-Yanes J.F. (José Francisco) Escánez, J. (José) Fraile-Nuez, E. (Eugenio) |
author_facet |
Mompeán-de-la-Rosa M.C. (María del Carmen) Bode, A. (Antonio) Benítez-Barrios V.M. (Verónica María) Domínguez-Yanes J.F. (José Francisco) Escánez, J. (José) Fraile-Nuez, E. (Eugenio) |
author_sort |
Mompeán-de-la-Rosa |
title |
Spatial patterns of plankton biomass and stable isotopes reflect the influence of the nitrogen-fixer Trichodesmium along the subtropical North Atlantic. |
title_short |
Spatial patterns of plankton biomass and stable isotopes reflect the influence of the nitrogen-fixer Trichodesmium along the subtropical North Atlantic. |
title_full |
Spatial patterns of plankton biomass and stable isotopes reflect the influence of the nitrogen-fixer Trichodesmium along the subtropical North Atlantic. |
title_fullStr |
Spatial patterns of plankton biomass and stable isotopes reflect the influence of the nitrogen-fixer Trichodesmium along the subtropical North Atlantic. |
title_full_unstemmed |
Spatial patterns of plankton biomass and stable isotopes reflect the influence of the nitrogen-fixer Trichodesmium along the subtropical North Atlantic. |
title_sort |
spatial patterns of plankton biomass and stable isotopes reflect the influence of the nitrogen-fixer trichodesmium along the subtropical north atlantic. |
publisher |
Centro Oceanográfico de A Coruña |
publishDate |
2014 |
url |
http://hdl.handle.net/10508/2081 http://hdl.handle.net/10261/316539 https://doi.org/10.1093/plankt/fbt011 |
op_coverage |
Atlantic Ocean Central Atlantic Eastern Central Atlantic Canary Islands |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_relation |
http://www.sciencedirect.com/science/article/pii/S0048969712014982 FP7-ENV-2010 264933 0142-7873 http://hdl.handle.net/10508/2081 http://hdl.handle.net/10261/316539 doi:10.1093/plankt/fbt011 Journal of Plankton Research, 35. 2013: 513-525 20048 |
op_rights |
open |
op_doi |
https://doi.org/10.1093/plankt/fbt011 |
container_title |
Journal of Plankton Research |
container_volume |
35 |
container_issue |
3 |
container_start_page |
513 |
op_container_end_page |
525 |
_version_ |
1790603987442991104 |