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Title: Modeling Phytoplankton New Production in the Peru Upwelling from Nitrate Reductase Activity and Light.
Authors: González Galisteo, S.
Dugdale, R.C.
Wilkerson, F.P.
Barber, R.T.
Blasco, D.
Christensen, J.P.
Packard, Theodore Train 
Gómez Cabrera, María Milagrosa 
UNESCO Clasification: 241707 Algología (ficología)
251001 Oceanografía biológica
Issue Date: 2016
Publisher: Universidad de Alicante. Departamento de Ciencias del Mar y Biología Aplicada.
Conference: V Simposio Internacional de Ciencias del Mar 
Abstract: 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.
ISBN: 978-84-16724-16-1
Source: Libro de resúmenes: V Simposio Internacional de Ciencias del Mar, Universidad de Alicante, p. 148-149
Appears in Collections:Actas de congresos
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