X. A. Padín

Instituto de Investigacións Mariñas

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Fı́z F. Pérez

Instituto de Investigacións Mariñas

Aida F. Rı́os

Instituto de Investigacións Mariñas

A. Velo

Instituto de Investigacións Mariñas

Mercedes de la Paz

Instituto Español de Oceanografía

M. Vázquez‐Rodríguez

Instituto de Investigacións Mariñas

Arne Körtzinger

GEOMAR Helmholtz Centre for Ocean Research Kiel

Miguel Gilcoto

Instituto de Investigacións Mariñas

Dorothée C. E. Bakker

University of East Anglia

Herlé Mercier

Institut Océanographique

Melchor González‐Dávila

Universidad de Las Palmas de Gran Canaria

Cooperative Institutions

Consejo Superior de Investigaciones Científicas

Instituto de Investigacións Mariñas

Centre National de la Recherche Scientifique

National Oceanic and Atmospheric Administration

Institut de Ciències del Mar

Sorbonne Université

NOAA Pacific Marine Environmental Laboratory

University of Washington

Institut Català de Ciències del Clima

Universidade de Vigo

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Seawater carbonate chemistry and shell properties, behaviour of the mussel Mytilus galloprovincialis

Jihene Lassoued José M. F. Babarro X. A. Padín Luc A. Comeau Nejla Bejaoui

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A Novel Index of the Performance of Mytilus galloprovincialis to Improve Commercial Exploitation in Aquaculture

Frontiers in Marine Science (2020)

José M. F. Babarro Ramón Filgueira X. A. Padín M. Ángeles Longa Portabales

Estuarine environments are highly heterogeneous habitats where numerous organisms interact with each other. Aquaculture systems encompass such interactions, and the eventual yields depend on how the cultivated species respond to the environmental heterogeneity. Marine mussels are calcifying organisms that rely on calcium carbonate shell and byssus filaments secreted during their lifetime to protect soft vital tissues against aggressive, hydrodynamic environments and the actions of predators and competitors. Nevertheless, these protective structures can be energetically costly, depending on the environment, thus affecting the energy allocation patterns in the organism. Consequently, other important fitness parameters for the aquaculture industry, such as soft tissue condition and market value, may also be affected. Here, we present a spatial and temporal analysis of the protective and fitness responses in the mussel Mytilus galloprovincialis with the aim of obtaining a better understanding of the inter-location variability in survival and performance and the corresponding main environmental drivers. A novel, intuitive ecological index that measures the impact of both protective and fitness strategies was developed and is discussed in relation to cultivation timing. The data presented provides the basis for understanding the natural variability in energetic requirements for different vital tissues in bivalve mollusk that support survival and growth. We report the scientific basis for management actions aimed to shortening the cultivation cycle in the aquaculture sector. These actions are based on the combined use of the PROFIT index and other aquaculture practices (e.g. modifying density). PROFIT helps to identify when the quality of the product, understood as PROtection and FITness strategies, would be best suited for the market. Highlights: - PROFIT is a novel, simple eco-physiological index for use in the cultivation of marine mussels - Consideration of protective tissues and yield in cultivated marine bivalves is needed for better comprehension of energetic trade-offs during the life cycle - Innovations in aquaculture practices, here with the marine mussel Mytilus galloprovincialis as a case study, should consider new indicators like PROFIT (and others) for better management of the natural resource and for differentiating production areas or exploitation methods

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10.3389/fmars.2020.00719

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Surface Ocean CO<sub>2</sub> Atlas (SOCAT) gridded data products

Christopher L. Sabine S. Hankin H. Koyuk Dorothée C. E. Bakker Benjamin Pfeil

Abstract. A well documented, publicly available, global data set for surface ocean carbon dioxide (CO2) parameters has been called for by international groups for nearly two decades. The Surface Ocean CO2 Atlas (SOCAT) project was initiated by the international marine carbon science community in 2007 with the aim of providing a comprehensive, publicly available, regularly updated, global data set of marine surface CO2, which had been subject to quality control (QC). SOCAT version 1.5 was made public in September 2011 and holds 6.3 million quality controlled surface CO2 data from the global oceans and coastal seas, spanning four decades (1968–2007). The SOCAT gridded data is the second data product to come from the SOCAT project. Recognizing that some groups may have trouble working with millions of measurements, the SOCAT gridded product was generated to provide a robust regularly spaced fCO2 product with minimal spatial and temporal interpolation which should be easier to work with for many applications. Gridded SOCAT is rich with information that has not been fully explored yet, but also contains biases and limitations that the user needs to recognize and address.

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10.5194/essdd-5-781-2012

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Air-Sea CO<sub>2</sub> fluxes in the Atlantic as measured during boreal spring and autumn

Biogeosciences (2010)

X. A. Padín M. Vázquez‐Rodríguez Mónica Castaño A. Velo Fernando Alonso‐Pérez

Abstract. A total of fourteen hydrographic cruises from 2000 to 2008 were conducted during the spring and autumn seasons between Spain and the Southern Ocean under the framework of the Spanish research project FICARAM. The underway measurements were processed and analysed to describe the meridional air-sea CO2 fluxes (FCO2) in the covered sector of the Atlantic Ocean. The data has been grouped into different biogeochemical oceanographic provinces based on thermohaline characteristics. The spatial and temporal distributions of FCO2 followed expected distributions and annual trends reproducing the recent climatological ΔfCO2 estimations with a mean difference of −3 ± 18 μatm (Takahashi et al., 2009). The reduction in the CO2 saturation along the meridional FICARAM cruises represented an increase of 0.02 ± 0.14 mol m−2 yr−1 in the ocean uptake of atmospheric CO2. The subtropical waters in both Hemispheres acted as a sink of atmospheric CO2 during the successive spring seasons and as a source in autumn. The coarse reduction of the ocean uptake of atmospheric CO2 observed in the North Atlantic Ocean was linked to conditions of negative phase of the North Atlantic Oscillation that prevailed during the FICARAM period. Surface waters in the North Equatorial Counter Current revealed a significant long-term decrease of sea surface salinity of −0.16 ± 0.01 yr−1 coinciding with a declination of −3.5 ± 0.9 μatm yr−1 in the air–sea disequilibrium of CO2 fugacity and a rise of oceanic CO2 uptake of −0.09 ± 0.03 mol m−2 yr−1. The largest CO2 source was located in the equatorial upwelling system. These tropical waters that reached emissions of 0.7 ± 0.5 and 1.0 ± 0.7 mol m−2 y−1 in spring and autumn, respectively, showed an interannual warming of 0.11 ± 0.03 °C yr−1 and a wind speed decrease of −0.58 ± 0.14 m s−1 yr−1 in spring cruises which suggest the weakening of upwelling events associated with warm El Niño – Southern Oscillation episodes. Contrary the surface waters of the Patagonian Sea behaved as an intense sink of CO2 in March and November. The oceanic waters of the convergence of Falkland and Brazil Currents showed the strongest CO2 absorption with a rate of −5.4 ± 3.6 mol m−2 yr−1 in November. The Southern Oceans sampled in the Drake Passage behave as an average uptake rate of −1.1 ± 0.9 mol m−2 yr−1 while the distal shelf of the Livingston Island acted as a slight source of CO2 to the atmosphere.

Sink (geography)

Biogeochemical Cycle

10.5194/bg-7-1587-2010

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Evolution of upwelling systems coupled to the long-term variability in sea surface temperature and Ekman transport

Climate Research (2011)

PC Pardo X. A. Padín Miguel Gilcoto L. Fariña‐Busto FF Pérez

CR Climate Research Contact the journal Facebook Twitter RSS Mailing List Subscribe to our mailing list via Mailchimp HomeLatest VolumeAbout the JournalEditorsSpecials CR 48:231-246 (2011) - DOI: https://doi.org/10.3354/cr00989 Contribution to the CR Special: 'Regional climate change in the NW Iberian Peninsula' Evolution of upwelling systems coupled to the long-term variability in sea surface temperature and Ekman transport Paula C. Pardo1, Xosé A. Padín1, Miguel Gilcoto1, Luis Farina-Busto2, Fiz F. Pérez1,* 1Instituto de Investigaciones Marinas, CSIC, 36208 Vigo, Spain 2Facultade de Ciencias do Mar, Universidade de Vigo, Campus de Lagoas-Marcosende, 36310 Vigo, Spain *Email: fiz.perez@iim.csic.es ABSTRACT: In the early 1990s it was hypothesized that the global warming process would produce an increase in sea–land temperature gradients and, subsequently, enhance the wind patterns responsible for coastal upwelling. Hence, an increase in the intensity of coastal upwelling was expected in the main upwelling ecosystems around the world. However, recently published analyses of the evolution of coastal upwelling processes have shown contradictory evidence. For this reason, time series of sea-surface temperature (SST) and the upwelling index Iw extracted from the NCEP/NCAR reanalysis project database and covering the last 6 decades were studied. The time series analyses focused on the northern part of the Canary Current System and included comparisons with upwelling systems off NW Africa, California, Benguela and Peru. Climatic indices, including the Atlantic Multidecadal Oscillation, Eastern Atlantic Pattern, Interdecadal Pacific Oscillation Index and North Atlantic Oscillation, were investigated to explain the variability found in the NCEP/NCAR time series. A general sea-surface warming and weakening of the upwelling intensity in the Iberian/Canary and NW African regions were found and these have intensified in the last 4 decades. These trends were clearly observed in winter and autumn for both regions, and a weakening in the upwelling intensity was also detected in summer in the NW African region. The North Atlantic Oscillation and the Eastern Atlantic Pattern indices correlated with both SST and Iw, particularly in winter and spring, and also with both the Iberian/Canary and NW African regions. No clear trend was found for the California region, while, conforming to the hypothesis, the Benguela region exhibited enhancement of upwelling, but only slight sea-surface warming. In contrast, the Peru region indicated a weakening of upwelling accompanied by marginal sea-surface warming. KEY WORDS: Coastal upwelling · Global warming · Temperature trends · Ocean–atmosphere coupling · Interannual variability Full text in pdf format PreviousNextCite this article as: Pardo PC, Padín XA, Gilcoto M, Farina-Busto L, Pérez FF (2011) Evolution of upwelling systems coupled to the long-term variability in sea surface temperature and Ekman transport. Clim Res 48:231-246. https://doi.org/10.3354/cr00989 Export citation RSS - Facebook - Tweet - linkedIn Cited by Published in CR Vol. 48, No. 2-3. Online publication date: August 30, 2011 Print ISSN: 0936-577X; Online ISSN: 1616-1572 Copyright © 2011 Inter-Research.

Ekman transport

Peninsula

10.3354/cr00989

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Citations (96)

Surface Ocean CO2 Atlas (SOCAT) V1.4

Dorothée C. E. Bakker Siv K. Lauvset Rik Wanninkhof Rocío Castaño-Primo Kim Currie

10.1594/pangaea.767698

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Behavioural and eco-physiological responses of the mussel Mytilus galloprovincialis to acidification and distinct feeding regimes

Marine Ecology Progress Series (2019)

Jihene Lassoued José M. F. Babarro X. A. Padín LA Comeau Nejla Bejaoui

MEPS Marine Ecology Progress Series Contact the journal Facebook Twitter RSS Mailing List Subscribe to our mailing list via Mailchimp HomeLatest VolumeAbout the JournalEditorsTheme Sections MEPS 626:97-108 (2019) - DOI: https://doi.org/10.3354/meps13075 Behavioural and eco-physiological responses of the mussel Mytilus galloprovincialis to acidification and distinct feeding regimes Jihene Lassoued1,2, Jose M. F. Babarro1,*, X. A. Padín1, Luc A. Comeau3, Nejla Bejaoui2, Fiz F. Pérez1 1Instituto de Investigaciones Marinas, IIM-CSIC, Eduardo Cabello 6, 36208 Vigo (Pontevedra), Spain 2Institut National Agronomique de Tunisie INAT, Université de Carthage, 43 Avenue Charles Nicolle, 1082 Tunis, Tunisia 3Fisheries and Oceans Canada, Gulf Fisheries Centre, 343 Avenue Université, Moncton, New Brunswick E1C 9B6, Canada *Corresponding author: jbabarro@iim.csic.es ABSTRACT: The carbon dioxide taken up by the ocean is increasing as levels of atmospheric carbon dioxide increase, thus lowering the ocean pH and altering the carbonate system. In this laboratory study, we evaluated the physiological responses of juvenile mussels Mytilus galloprovincialis from Galician waters (NW Iberian Peninsula) exposed to control (500 µatm) and elevated (800 or 1200 µatm) seawater pCO2 conditions under 2 different feeding regimes (optimal and suboptimal). Shell properties such as compressive strength and composition (organic matter and aragonite:calcite ratio) were negatively affected by high seawater pCO2, regardless of food availability. This result suggests that water chemistry is a main driver for shell development. Under the optimal feeding regime, mussel feeding rates increased in response to elevated pCO2, presumably as a strategy to maintain a high strength of attachment. In contrast, mussels on the suboptimal diet showed weak attachment and narrow valve opening at the highest pCO2 condition. Thus, our results suggest that with optimal food availability, mussels were resilient to water acidification with respect to feeding activity, valve opening and attachment strength. Under a suboptimal diet, however, the ability of mussels to respond to acidification was compromised. These results highlight complex ecophysiological interactions for calcifying organisms subjected to climate change. KEY WORDS: Marine mussels · Acidic conditions · Diet · Interaction · Behaviour Full text in pdf format PreviousNextCite this article as: Lassoued J, Babarro JMF, Padín XA, Comeau LA, Bejaoui N, Pérez FF (2019) Behavioural and eco-physiological responses of the mussel Mytilus galloprovincialis to acidification and distinct feeding regimes. Mar Ecol Prog Ser 626:97-108. https://doi.org/10.3354/meps13075 Export citation RSS - Facebook - Tweet - linkedIn Cited by Published in MEPS Vol. 626. Online publication date: September 12, 2019 Print ISSN: 0171-8630; Online ISSN: 1616-1599 Copyright © 2019 Inter-Research.

Ocean Acidification

Blue mussel

10.3354/meps13075

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Decadal acidification in the water masses of the

Atlantic Ocean Aida F. Rı́os Laure Resplandy Maribel I. García‐Ibáñez Noelia M. Fajar

Global ocean acidification is caused primarily by the ocean’s uptake of CO2 as a consequence of increasing atmospheric CO2 levels. We present observations of the oceanic decrease in pH at the basin scale (50°S–36°N) for the Atlantic Ocean over two decades (1993–2013). Changes in pH associated with the uptake of anthropogenic CO2 (ΔpHCant) and with variations caused by biological activity and ocean circulation (ΔpHNat) are evaluated for different water masses. Output from an Institut Pierre Simon Laplace climate model is used to place the results into a longer-term perspective and to elucidate the mechanisms responsible for pH change. The largest decreases in pH (ΔpH) were observed in central, mode, and intermediate waters, with a maximum ΔpH value in South Atlantic Central Waters of �0.042 ± 0.003. The ΔpH trended toward zero in deep and bottom waters. Observations and model results show that pH changes generally are dominated by the anthropogenic component, which accounts for rates between �0.0015 and �0.0020/y in the central waters. The anthropogenic and natural components are of the same order of magnitude and reinforce one another in mode and intermediate waters over the time period. Large negative ΔpHNat values observed in mode and intermediate waters are driven primarily by changes in CO2 content and are consistent with (i) a poleward shift of the formation region during the positive phase of the Southern Annular Mode in the South Atlantic and (ii) an increase in the rate of the water mass formation in the North Atlantic.

Ocean Acidification

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SURCOM pH and temperature data collection registered at Cortegada Platform (Ria de Arousa - Spain) from 2020 to 2021

Zenodo (CERN European Organization for Nuclear Research) (2022)

A. Velo X. A. Padín P Álvarez J Rey-Muras Clara Almécija

This dataset comprises the data recorded by the SURCOM production prototype deployed from 2020 to 2021 at Cortegada Platform (42º 37' 40" N, 8º 46' 57" W), located in the National Park of Atlantic Islands at Ria de Arousa, in the NW of Spain. The measurements were taken continuously with pH and temperature collected at a frecuency of 10.3 minutes^-1. Real-time adquired data is displayed and can be also downloaded from the following web panel: https://co2.iim.csic.es/monitoring/d/surcom_cortegada/surcom-cortegada These results have been obtained thanks to the support of CSIC PTI WATER:iOS and are, therefore, a contribution to its efforts.

10.5281/zenodo.6905396

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[RAW VALIDATED DATA] Properties of seawater (partial pressure of carbon dioxide (pCO2)) from a ProOceanus CO2-Pro sensor mounted on the continuous surface water sampling system during the Tara Oceans expedition 2009-2013

Diana Ruiz Pino X. A. Padín Participants Tara Oceans Expedition

Partial pressure

10.1594/pangaea.861919

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