Nitrogen fixation in the upwelling region off NW Iberia
Comunicación oral Picoplankton are the most abundant organisms in the ocean, often dominate planktonic biomass and primary production, and they could represent a substantial contribution to the global export of carbon. Nowadays, we have a limited understanding about the factors that control the pico...
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ftcsic:oai:digital.csic.es:10261/316444 2024-02-11T10:06:27+01:00 Nitrogen fixation in the upwelling region off NW Iberia Moreira-Coello, V. (Víctor) Mouriño-Carballido, B. (Beatriz) Marañón, E. (Emilio) Fernández, Á. (Álvaro) Chouciño, P. (Paloma) Varela, M.M. (Marta María) Bode, A. (Antonio) Granada (España) 2014 Atlantic Ocean North Atlantic 2015-09-30T12:31:00Z http://hdl.handle.net/10508/9735 http://hdl.handle.net/10261/316444 en eng Centro Oceanográfico de A Coruña Moduplan http://hdl.handle.net/10508/9735 http://hdl.handle.net/10261/316444 ID:26148 2015 Aquatic Science Meeting:Global and regional perspectives-North meets South. (22/02/2015 - 27/02/2015. Granada(España)). 2015. ID:26148. En: , . 21380 open nitrogen fixation upwelling region off NW Iberia conference output 2015 ftcsic 2024-01-16T11:44:31Z Comunicación oral Picoplankton are the most abundant organisms in the ocean, often dominate planktonic biomass and primary production, and they could represent a substantial contribution to the global export of carbon. Nowadays, we have a limited understanding about the factors that control the picoplankton community structure. A recent analysis indicates that light and temperature are the main factors explaining Prochlorococcus and Synechococcus distributions, whereas nutrient concentrations play a minor role (Flombaum et al., PNAS 2013). Methodological difficulties to quantify mixing in the marine enviroments have motivated the use of indirect approaches to determine the input of nutrients into the euphotic zone, however, nutrient concentrations are not necessarily a proxy of nutrient supply. We present a large data set, including open-ocean and coastal regions, of simultaneous measurements of picoplankton abundance, temperature and irradiance, together with estimates of nutrient supply. The transport of nutrients across the nutricline was computed combining nutrient concentrations and small-scale turbulence observations collected with a microstructure profiler. Our preliminary results indicate that nutrient supply also plays a role in the distribution of functional groups of picoplankton in the ocean. Conference Object North Atlantic Digital.CSIC (Spanish National Research Council) |
institution |
Open Polar |
collection |
Digital.CSIC (Spanish National Research Council) |
op_collection_id |
ftcsic |
language |
English |
topic |
nitrogen fixation upwelling region off NW Iberia |
spellingShingle |
nitrogen fixation upwelling region off NW Iberia Moreira-Coello, V. (Víctor) Mouriño-Carballido, B. (Beatriz) Marañón, E. (Emilio) Fernández, Á. (Álvaro) Chouciño, P. (Paloma) Varela, M.M. (Marta María) Bode, A. (Antonio) Nitrogen fixation in the upwelling region off NW Iberia |
topic_facet |
nitrogen fixation upwelling region off NW Iberia |
description |
Comunicación oral Picoplankton are the most abundant organisms in the ocean, often dominate planktonic biomass and primary production, and they could represent a substantial contribution to the global export of carbon. Nowadays, we have a limited understanding about the factors that control the picoplankton community structure. A recent analysis indicates that light and temperature are the main factors explaining Prochlorococcus and Synechococcus distributions, whereas nutrient concentrations play a minor role (Flombaum et al., PNAS 2013). Methodological difficulties to quantify mixing in the marine enviroments have motivated the use of indirect approaches to determine the input of nutrients into the euphotic zone, however, nutrient concentrations are not necessarily a proxy of nutrient supply. We present a large data set, including open-ocean and coastal regions, of simultaneous measurements of picoplankton abundance, temperature and irradiance, together with estimates of nutrient supply. The transport of nutrients across the nutricline was computed combining nutrient concentrations and small-scale turbulence observations collected with a microstructure profiler. Our preliminary results indicate that nutrient supply also plays a role in the distribution of functional groups of picoplankton in the ocean. |
format |
Conference Object |
author |
Moreira-Coello, V. (Víctor) Mouriño-Carballido, B. (Beatriz) Marañón, E. (Emilio) Fernández, Á. (Álvaro) Chouciño, P. (Paloma) Varela, M.M. (Marta María) Bode, A. (Antonio) |
author_facet |
Moreira-Coello, V. (Víctor) Mouriño-Carballido, B. (Beatriz) Marañón, E. (Emilio) Fernández, Á. (Álvaro) Chouciño, P. (Paloma) Varela, M.M. (Marta María) Bode, A. (Antonio) |
author_sort |
Moreira-Coello, V. (Víctor) |
title |
Nitrogen fixation in the upwelling region off NW Iberia |
title_short |
Nitrogen fixation in the upwelling region off NW Iberia |
title_full |
Nitrogen fixation in the upwelling region off NW Iberia |
title_fullStr |
Nitrogen fixation in the upwelling region off NW Iberia |
title_full_unstemmed |
Nitrogen fixation in the upwelling region off NW Iberia |
title_sort |
nitrogen fixation in the upwelling region off nw iberia |
publisher |
Centro Oceanográfico de A Coruña |
publishDate |
2015 |
url |
http://hdl.handle.net/10508/9735 http://hdl.handle.net/10261/316444 |
op_coverage |
Granada (España) 2014 Atlantic Ocean North Atlantic |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_relation |
Moduplan http://hdl.handle.net/10508/9735 http://hdl.handle.net/10261/316444 ID:26148 2015 Aquatic Science Meeting:Global and regional perspectives-North meets South. (22/02/2015 - 27/02/2015. Granada(España)). 2015. ID:26148. En: , . 21380 |
op_rights |
open |
_version_ |
1790604185088032768 |