Abstract
Six bimonthly surveys during 2007 were carried out in Magdalena Bay (Mexico) during spring tide conditions. Spatiotemporal variations of temperature, salinity, nitrite, nitrate, ammonium, phosphate and chlorophyll-a were analyzed in the Bay. During spring-early summer (April-June) seawaters were colder and richer in new nutrients and chlorophyll-a than autumn and winter (February and October-December). The coastal upwelling during spring-early summer contributes with new nutrients to the Bay, whereas bottom-recycled nutrients should be the main input during the autumn-winter period. Thus, nutrients availability, dissolved inorganic nitrogen and phosphate, promote a seasonal pattern of phytoplankton biomass in Magdalena Bay.
Translated title of the contribution | Relevance of new and regenerated nitrogen sources in the water column of magdalena bay (SW baja California Peninsula), Mexico |
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Original language | English |
Pages (from-to) | 587-592 |
Number of pages | 6 |
Journal | Revista de Biologia Marina y Oceanografia |
Volume | 47 |
Issue number | 3 |
DOIs | |
State | Published - Dec 2012 |
Externally published | Yes |
Keywords
- Chlorophyll-a
- Coastal upwelling
- New nutrient
- Regenerated nutrient