Spatial and temporal variation of satellite-derived phytoplankton biomass and production in the California Current System off Punta Eugenia, during 1997-2012

  • Raquel G. Arroyo-Loranca Centro de Investigación Científica y de Educación Superior de Ensenada, B. C., División de Oceanología, Carretera Ensenada-Tijuana 3918, Zona Playitas, Ensenada, Baja California, 22860. México
  • Saúl Álvarez-Borrego Centro de Investigación Científica y de Educación Superior de Ensenada, B. C., División de Oceanología, Carretera Ensenada-Tijuana 3918, Zona Playitas, Ensenada, Baja California, 22860. México
  • Modesto Ortiz-Figueroa Centro de Investigación Científica y de Educación Superior de Ensenada, B. C., División de Oceanología, Carretera Ensenada-Tijuana 3918, Zona Playitas, Ensenada, Baja California, 22860. México
  • Luis E. Calderón-Aguilera Centro de Investigación Científica y de Educación Superior de Ensenada, B. C., División de Oceanología, Carretera Ensenada-Tijuana 3918, Zona Playitas, Ensenada, Baja California, 22860. México
Palabras clave: California Current System, chlorophyll concentration, phytoplankton production, satellite data, temperature.

Resumen

The great biodiversity of the California Current System area off Punta Eugenia is supported by high phytoplankton production (PP) caused by coastal upwelling. Satellite imagery was used to characterize the sea surface temperature (SST), phytoplankton biomass (Chlsat), and PP variation in this area during 1997-2012, and to generate a first approximation to its climatology, or an average year. Chlsat and PP had higher values inshore (0-120 km from shore) than offshore. SST had minima inshore and maxima offshore from January through October, with a gradient reversal at the end of autumn. SST often presented spatial distributions with minima and maxima suggesting mesoscale phenomena, such as meanders and eddies. These affected Chlsat and PP inshore. In general, inshore Chlsat and PP were high in March-August (up to >5 mg m-3, and >3.5 g C m-2 d-1), and low in September-February (up to ~1.2 mg m-3, and ~1.2 g C m-2 d-1). Offshore (120-240 km), Chlsat and PP presented similar and relatively low values throughout the whole year, ~0.3 mg m-3 and ~0.5 g C m-2 d-1. Most Chlsat and PP variation was in the annual and interannual periods. Chlsat data from 1998 (El Niño year) and those of 2000 presented significant differences for the inshore region. But, when comparing other El Niño years, there were no significant differences, suggesting that the local impact of ENSO events depend on the type of El Niño, the Pacific decadal oscillation phase, and the incidence of mesoscale phenomena such as meanders and eddies.

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Publicado
30-09-2016
Cómo citar
Arroyo-Loranca, R. G., Álvarez-Borrego, S., Ortiz-Figueroa, M., & Calderón-Aguilera, L. E. (2016). Spatial and temporal variation of satellite-derived phytoplankton biomass and production in the California Current System off Punta Eugenia, during 1997-2012. HIDROBIOLÓGICA, 25(3), 321-334. Recuperado a partir de https://hidrobiologica.izt.uam.mx/index.php/revHidro/article/view/425
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