scholarly journals Cycling of dissolved and particulate carbohydrates in a coastal upwelling system (NW Iberian Peninsula)

2004 ◽  
Vol 283 ◽  
pp. 39-54 ◽  
Author(s):  
M Nieto-Cid ◽  
XA Álvarez-Salgado ◽  
S Brea ◽  
FF Pérez
Keyword(s):  
Iberian Peninsula ◽  
Coastal Upwelling ◽  
Upwelling System

scholarly journals Life strategies of cephalopod paralarvae in a coastal upwelling system (NW Iberian Peninsula): insights from zooplankton community and spatio-temporal analyses

2016 ◽  
Vol 25 (3) ◽  
pp. 241-258 ◽  
Author(s):  
Álvaro Roura ◽  
X. Antón Álvarez-Salgado ◽  
Ángel F. González ◽  
María Gregori ◽  
Gabriel Rosón ◽  
...  
Keyword(s):  
Iberian Peninsula ◽  
Coastal Upwelling ◽  
Zooplankton Community ◽  
Life Strategies ◽  
Upwelling System ◽  
Spatio Temporal

Bloom dynamics and life cycle strategies of two toxic dinoflagellates in a coastal upwelling system (NW Iberian Peninsula)

2010 ◽  
Vol 57 (3-4) ◽  
pp. 222-234 ◽  
Author(s):  
Isabel Bravo ◽  
Santiago Fraga ◽  
Rosa Isabel Figueroa ◽  
Yolanda Pazos ◽  
Ana Massanet ◽  
...  
Keyword(s):  
Life Cycle ◽  
Iberian Peninsula ◽  
Coastal Upwelling ◽  
Upwelling System ◽  
Toxic Dinoflagellates

scholarly journals Effects of upwelling duration and phytoplankton growth regime on dissolved oxygen levels in an idealized Iberian Peninsula upwelling system

2019 ◽  
Author(s):  
João H. Bettencourt ◽  
Vincent Rossi ◽  
Lionel Renault ◽  
Peter Haynes ◽  
Yves Morel ◽  
...  
Keyword(s):  
Dissolved Oxygen ◽  
Iberian Peninsula ◽  
Coastal Upwelling ◽  
Net Primary Production ◽  
Coastal Region ◽  
Phytoplankton Growth ◽  
Biogeochemical Model ◽  
Nutrient Inputs ◽  
Upwelling System ◽  
Growth Regime

Abstract. We apply a coupled modelling system composed of a state-of-the-art hydrodynamical model and a low complexity biogeochemical model to an idealized Iberian Peninsula upwelling system to identify the main drivers of dissolved oxygen variability and to study its response to changes in the duration of the upwelling season and in phytoplankton growth regime. We find that the export of oxygenated waters by upwelling front turbulence is a major sink for nearshore dissolved oxygen. In our simulations of summer upwelling, when phytoplankton population is generally dominated by diatoms whose growth is largely enhanced by nutrient input, net primary production and air-sea exchange compensate dissolved oxygen depletion by offshore export over the shelf. A shorter upwelling duration causes relaxation of upwelling winds and a decrease in offshore export, resulting in a slight increase of net dissolved oxygen enrichment in the coastal region as compared to longer upwelling durations. When phytoplankton is dominated by groups less sensitive to nutrient inputs, growth rates decrease and the coastal region becomes net heterotrophic. Together with the physical sink, this lowers the net oxygenation rate of coastal waters, that remains positive only because of air-sea exchanges. These findings help disentangling the physical and biogeochemical controls of dissolved oxygen in upwelling systems and, together with projections of increased duration of upwelling seasons and phytoplankton community changes, suggest that the Iberian coastal upwelling region may become more vulnerable to hypoxia and deoxygenation.

scholarly journals Effects of upwelling duration and phytoplankton growth regime on dissolved-oxygen levels in an idealized Iberian Peninsula upwelling system

2020 ◽  
Vol 27 (2) ◽  
pp. 277-294
Author(s):  
João H. Bettencourt ◽  
Vincent Rossi ◽  
Lionel Renault ◽  
Peter Haynes ◽  
Yves Morel ◽  
...  
Keyword(s):  
Dissolved Oxygen ◽  
Iberian Peninsula ◽  
Coastal Upwelling ◽  
Net Primary Production ◽  
Coastal Region ◽  
Phytoplankton Growth ◽  
Biogeochemical Model ◽  
Nutrient Inputs ◽  
Upwelling System ◽  
Growth Regime

Abstract. We apply a coupled modelling system composed of a state-of-the-art hydrodynamical model and a low-complexity biogeochemical model to an idealized Iberian Peninsula upwelling system to identify the main drivers of dissolved-oxygen variability and to study its response to changes in the duration of the upwelling season and in the phytoplankton growth regime. We find that the export of oxygenated waters by upwelling front turbulence is a major sink for nearshore dissolved oxygen. In our simulations of summer upwelling, when the phytoplankton population is generally dominated by diatoms whose growth is boosted by nutrient input, net primary production and air–sea exchange compensate dissolved-oxygen depletion by offshore export over the shelf. A shorter upwelling duration causes a relaxation of upwelling winds and a decrease in offshore export, resulting in a slight increase of net dissolved-oxygen enrichment in the coastal region as compared to longer upwelling durations. When phytoplankton is dominated by groups less sensitive to nutrient inputs, growth rates decrease, and the coastal region becomes net heterotrophic. Together with the physical sink, this lowers the net oxygenation rate of coastal waters, which remains positive only because of air–sea exchange. These findings help in disentangling the physical and biogeochemical controls of dissolved oxygen in upwelling systems and, together with projections of increased duration of upwelling seasons and phytoplankton community changes, suggest that the Iberian coastal upwelling region may become more vulnerable to hypoxia and deoxygenation.

Modeling the Central California Coastal Upwelling System: Physics, Ecosystems and Resource Management

2002 ◽  
Author(s):  
Francisco P. Chavez ◽  
Richard T. Barber ◽  
Fei Chai ◽  
Yi Chao ◽  
Andrew P. De Vogelaere ◽  
...  
Keyword(s):  
Resource Management ◽  
Coastal Upwelling ◽  
Central California ◽  
Upwelling System

scholarly journals Modeling the impact of climate change on mussel aquaculture in a coastal upwelling system: A critical assessment

2021 ◽  
Vol 775 ◽  
pp. 145020
Author(s):  
Isabel Fuentes-Santos ◽  
Uxío Labarta ◽  
María José Fernández-Reiriz ◽  
Susan Kay ◽  
Solfrid Sætre Hjøllo ◽  
...  
Keyword(s):  
Climate Change ◽  
Coastal Upwelling ◽  
Critical Assessment ◽  
Impact Of Climate Change ◽  
Upwelling System ◽  
System A ◽  
The Impact
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