Identificador persistente para citar o vincular este elemento: http://hdl.handle.net/10553/50893
Título: Seasonal changes in respiratory enzyme activity and productivity in Lake Washington microplankton
Autores/as: Devol, Allan H.
Packard, T. T. 
Clasificación UNESCO: 250808 Limnología
Palabras clave: Respiration
Radiocarbon
Ratios
Plankton Productivity
Chlorophylls, et al.
Fecha de publicación: 1978
Editor/a: 0024-3590
Publicación seriada: Limnology and Oceanography 
Resumen: The seasonal cycle of respiratory electron transport system (ETS) activity, 14C uptake, chlorophyll, temperature, and nutrient concentration in the euphotic zone of Lake Washington during 1974 shows minimum ETS activity (4.2 mg Oeqm−2h−1), 14C uptake (84 mg C m−2d−1), and chlorophyll (10.1 mg m−2) occurred in the first few months of the year and coincided with minimum temperature (≃6.2°C) and maximum nutrient concentrations (PO43− = 250 mg m−2, NO3− = 3.5 g m−2). Maximum ETS activity (109.8 mg Oeqm−2h−1), 14C uptake (2,126 mg C m−2d−1) and chlorophyll (121.7 mg m−2) were observed during the spring bloom. Values were intermediate during the fall period of thermal stratification and nutrient depletion. Respiration rates were calculated from ETS activities and used to calculate production:respiration ratios (P:R). The P:R ratios were low in late summer and fall and high in winter. The percentage of primary production oxidized during a 12‐h dark period varied from >100% to 7%: high percentages in summer, low in late winter.
URI: http://hdl.handle.net/10553/50893
ISSN: 0024-3590
DOI: 10.4319/lo.1978.23.1.0104
Fuente: Limnology and Oceanography [ISSN 0024-3590], v. 23, p. 104-111
Colección:Artículos
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