SciELO - Scientific Electronic Library Online

 
vol.33 número1Biología reproductiva del asteroideo de mar profundo Henricia abyssicola en el Atlántico NEEfecto de la emersión a corto plazo a dos temperaturas de exposición aérea sobre parámetros de calidad en cola de langosta espinosa (Panulirus interruptus) índice de autoresíndice de assuntospesquisa de artigos
Home Pagelista alfabética de periódicos  

Serviços Personalizados

Journal

Artigo

Indicadores

Links relacionados

  • Não possue artigos similaresSimilares em SciELO

Compartilhar


Ciencias marinas

versão impressa ISSN 0185-3880

Resumo

BAROCIO-LEON, OA; MILLAN-NUNEZ, R; SANTAMARIA-DEL-ANGEL, E  e  GONZALEZ-SILVERA, A. Phytoplankton primary productivity in the euphotic zone of the California Current System estimated from CZCS imagery. Cienc. mar [online]. 2007, vol.33, n.1, pp.59-72. ISSN 0185-3880.

We estimated phytoplankton primary productivity (PP) in the euphotic zone of the California Current System using chlorophyll concentration (Chl) from CZCS imagery. The area was divided into two regions, Southern California (SC) and Baja California (BC), with inshore and offshore subregions, and into two seasons, cool and warm. The Chl and PP values were in general higher and more variable inshore than offshore. The cool season had higher PP values, except in the offshore subregion of BC. The effect of El Niño (ENSO) 1982-1983 was more evident inshore, leading to lower PP values during the warm season of 1983 and the cool season of 1984. Mesotrophic and eutrophic waters dominated in the inshore subregions, whereas the major contribution in the offshore subregions was from oligotrophic waters. The total PP estimated was on average 23.78% below the corresponding in situ CalCOFI PP data, 51.82% inshore and 5.93% offshore, which is within the expected agreement between in situ and modeling methods. The average daily PP for SC inshore and offshore was 0.80 and 0.61 g C m-2, respectively, and for BC inshore and offshore it was 1.03 and 0.18 g C m-2, respectively. The total PP in the euphotic zone of the study area (January 1979 to June 1986) was 2.39 Gt C. We calculated an annual average PP for the whole study area of 0.32 Gt C.

Palavras-chave : primary productivity; CZCS; chlorophyll a; California Current.

        · resumo em Espanhol     · texto em Espanhol     · Espanhol ( pdf )

 

Creative Commons License Todo o conteúdo deste periódico, exceto onde está identificado, está licenciado sob uma Licença Creative Commons