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| Titel |
Net primary productivity, upwelling and coastal currents in the Gulf of Ulloa, Baja California, México |
| VerfasserIn |
E. González-Rodríguez, A. Trasviña-Castro, G. Gaxiola-Castro, L. Zamudio, R. Cervantes-Duarte |
| Medientyp |
Artikel
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| Sprache |
Englisch
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| ISSN |
1812-0784
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| Digitales Dokument |
URL |
| Erschienen |
In: Ocean Science ; 8, no. 4 ; Nr. 8, no. 4 (2012-08-30), S.703-711 |
| Datensatznummer |
250005758
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| Publikation (Nr.) |
 copernicus.org/os-8-703-2012.pdf |
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| Zusammenfassung |
| The Gulf of Ulloa, a highly productive area off the western coast of the Baja
California Peninsula, is examined for five successive years (2003–2007) by
using satellite data and seasonal net primary productivity (NPP) estimates
obtained from a vertical generalised production model. The results identify
that northwestern winds blow parallel to the coast throughout the year.
However, highest NPP occurs from March to June. During this period, an
equatorward coastal current transports water from neighbouring upwelling
areas to the northern Gulf of Ulloa and in combination with local upwelling,
which injects nutrients into the euphotic zone, produce the observed increase
in NPP. The opposite situation occurs in late summer when a warm poleward
current of tropical characteristics arrives and inhibits the productivity in
the whole region and generates the yearly lowest NPP levels. Our findings
reveal the importance of lateral advection in the modulation of the primary
productivity in this subtropical upwelling region. |
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