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Sea surface temperature influence on terrestrial gross primary production along the southern California Current
Janet Reimer
Rodrigo Vargas
David Alberto Rivas Camargo
GILBERTO GAXIOLA CASTRO
JOSE MARTIN HERNANDEZ AYON
JOSE RUBEN LARA LARA
Acceso Abierto
Atribución
article, biophysics, coastal waters, controlled study, environmental management, environmental protection, environmental temperature, foraging, geomorphology, hydrography, marine species, nonhuman, ocean environment, oceanography, population dynamics
Some land and ocean processes are related through connections (and synoptic-scale teleconnections) to the atmosphere. Synoptic-scale atmospheric (El Niño/Southern Oscillation [ENSO], Pacific Decadal Oscillation [PDO], and North Atlantic Oscillation [NAO]) decadal cycles are known to influence the global terrestrial carbon cycle. Potentially, smaller scale land-ocean connections influenced by coastal upwelling (changes in sea surface temperature) may be important for local-to-regional water-limited ecosystems where plants may benefit from air moisture transported from the ocean to terrestrial ecosystems. Here we use satellite-derived observations to test potential connections between changes in sea surface temperature (SST) in regions with strong coastal upwelling and terrestrial gross primary production (GPP) across the Baja California Peninsula. This region is characterized by an arid/semiarid climate along the southern California Current. We found that SST was correlated with the fraction of photosynthetic active radiation (fPAR; as a proxy for GPP) with lags ranging from 0 to 5 months. In contrast ENSO was not as strongly related with fPAR as SST in these coastal ecosystems. Our results show the importance of local-scale changes in SST during upwelling events, to explain the variability in GPP in coastal, water-limited ecosystems. The response of GPP to SST was spatially-dependent: colder SST in the northern areas increased GPP (likely by influencing fog formation), while warmer SST at the southern areas was associated to higher GPP (as SST is in phase with precipitation patterns). Interannual trends in fPAR are also spatially variable along the Baja California Peninsula with increasing secular trends in subtropical regions, decreasing trends in the most arid region, and no trend in the semi-arid regions. These findings suggest that studies and ecosystem process based models should consider the lateral influence of local-scale ocean processes that could influence coastal ecosystem productivity. © 2015 Reimer et al.
Moncho Gomez-Gesteira, University of Vigo,Spain
2015
Artículo
PLoS ONE, Vol.10, No.4, Pags. 1-15
Inglés
Reimer JJ, Vargas R, Rivas D, Gaxiola-Castro G, Hernandez-Ayon JM, Lara-Lara R (2015) Sea Surface Temperature Influence on Terrestrial Gross Primary Production along the Southern California Current. PLoS ONE 10(4): e0125177. https://doi.org/10.1371/journal.pone.0125177
OCEANOGRAFÍA
Versión aceptada
acceptedVersion - Versión aceptada
Aparece en las colecciones: Artículos - Oceanografía Biológica

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