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http://hdl.handle.net/10553/111874
Título: | Modeling Phytoplankton New Production in the Peru Upwelling from Nitrate Reductase Activity and Light. | Autores/as: | González Galisteo, S. Dugdale, R.C. Wilkerson, F.P. Barber, R.T. Blasco, D. Christensen, J.P. Packard, Theodore Train Gómez Cabrera, María Milagrosa |
Clasificación UNESCO: | 241707 Algología (ficología) 251001 Oceanografía biológica |
Fecha de publicación: | 2016 | Editor/a: | Universidad de Alicante. Departamento de Ciencias del Mar y Biología Aplicada. | Conferencia: | V Simposio Internacional de Ciencias del Mar | Resumen: | Oceanic New Production is limited by nitrate (NO3-), ammonium (NH4+), and light. Measuring it by 15NO3- incubations is the current gold-standard, but the data acquisition rate is slow. Calculating it from plankton nitrate reductase activity (NR) is an inexpensive alternative with a higher data acquisition rate. Here, we calculate phytoplankton new production for the Peru upwelling ecosystem from measurements of NR activity using an enzyme kinetic model based on light-limitation. Calculations for the C-Line section at 15°S find new production ranging from 0.1 to 0.4 micro M N h-1 at the shelf edge and compares well to gross primary productivity when Redfield equivalents are used for N-C conversion. JASON-CUEA expedition data for September 1976 were used. | URI: | http://hdl.handle.net/10553/111874 | ISBN: | 978-84-16724-16-1 | Fuente: | Libro de resúmenes: V Simposio Internacional de Ciencias del Mar, Universidad de Alicante, p. 148-149 |
Colección: | Actas de congresos |
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