Primary Productivity
An evaluation of ocean color model estimates of marine primary productivity in coastal and pelagic regions across the globe
... Saba, V. S., Friedrichs, M. A. M., Carr, M.-E., Antoine, D., Arm- strong, R. A., Asanuma, I., Aumont, O., Bates, N. R., Behren- feld, M. J., Bennington, V., Bopp, L., Bruggeman, J., Buiten- huis, E. T., Church, M. J., ...
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Nutrient uplift in a cyclonic eddy increases diversity, primary productivity and iron demand of microbial communities relative to a western boundary current
... Previous studies in the Tasman Sea region have determined that surface phytoplankton communities are limited by N (Hassler et al., 2011; Hassler et al., 2014; Ellwood et al., 2013), and that diazotrophs (bacteria that ...
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Investigating the usefulness of satellite-derived fluorescence data in inferring gross primary productivity within the carbon cycle data assimilation system
... Figure 6. Correlations between CCDAS simulated quantities (i.e., SIF, GPP, aPAR) and between these simulated quantities and satel- lite GOSAT based fluorescence SIF are shown. Graph (a) presents the correlation between ...
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Annual and short-term variability in primary productivity by phytoplankton and correlated abiotic factors in the Jurumirim Reservoir (São Paulo, Brazil)
... phytoplankton productivity on latitudinal and temporal scales are still a controversial ...of primary productivity in tropical lakes and reservoirs deviated little in relation to the mean in ...
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Primary productivity of the phytoplankton in a tropical Brazilian shallow lake: experiments in the lake and in mesocosms
... lake, during one year, and in two mesocosm experiments, one in the winter and another in the summer. Other factors also analyzed were temperature, dissolved oxygen, pH, electrical conductivity, chlorophyll-a, alkalinity, ...
13
Macroalgal (Enteromorpha spp. and Ulva spp.) Primary Productivity in the Ria Formosa Lagoon
... Water temperature exhibits a seasonal fluctuation with a minimum in winter (13 ºC) and a maximum of 26 ºC in summer (Falcão, 1997; Falcão and Vale, 2003). Concentrations of dissolved oxygen are close to saturation values ...
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Evaluating spatial-temporal dynamics of net primary productivity of different forest types in northeastern China based on improved FORCCHN.
... The carbon budget model FORCCHN was established based on individual tree species. In this study, we focused on the different forest types. And the FORCCHN model had been improved and intensively tested with various field ...
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Investigating the usefulness of satellite derived fluorescence data in inferring gross primary productivity within the carbon cycle data assimilation system
... gross primary productivity (GPP), and ab- sorbed photosynthetically active radiation (aPAR) from in situ measurements obtained during 16 June to 20 June 2006 period over a canopy located at ...
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The sensitivity of primary productivity to intra-seasonal mixed layer variability in the sub-Antarctic Zone of the Atlantic Ocean
... a critical depth where water column integrated growth and loss rates are equal (Sver- drup, 1953). In iron-limited waters an additional consideration is that process studies (e.g., Boyd et al., 2005) have demonstrated ...
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A mechanistic model of the effects of light and temperature on algal primary productivity
... According to the present model, the initial slope of the productivity/light curves is temperature dependent whilst the optimal light intensity is temperature independent.. These m[r] ...
10
Environmental forcing on phytoplankton biomass and primary productivity of the coastal ecosystem in Ubatuba region, southern Brazil
... Although no significant peak was observed in the wind direction and speed, data suggest a relationship, at low frequency, between atmospheric forcing and water column stratification, nit[r] ...
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FLOODED NATIVE PASTURES OF THE NORTHERN REGION OF THE PANTANAL OF MATO GROSSO: BIOMASS AND PRIMARY PRODUCTIVITY VARIATIONS
... plant productivity not limited by nutrient conditions is greatest in the humid soil (Milchunas et ...highest primary production values were found; animal weight gains were recorded when pastures began ...
8
Benthic response to upwelling events off the SE Brazilian coast
... enhanced primary productivity on the Cabo Frio coastal upwelling system is reflected in the sediments by a high micro- bial biomass and labile organic matter content ...
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Relative effects of precipitation variability and warming on tallgrass prairie ecosystem function
... Previous studies in tallgrass prairie suggest that variation in precipitation at different temporal scales affects different aspects of ecosystem structure and function (Schwinning and Sala, 2004). For example, several ...
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Drought impact on carbon and water cycling in a Mediterranean <i>Quercus suber</i> L. woodland during the extreme drought event in 2012
... The objective of this study is to quantify the impact of the extreme drought event in 2012 on the water balance, gross primary productivity and carbon sink strength of a typical Portugue[r] ...
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Changes of energy fluxes in marine animal forests of the Anthropocene: factors shaping the future seascape
... Pelagic secondary production also suffers climate change- related impacts, either directly through changes in the environ- mental conditions or indirectly through changes in phytoplank- ton productivity (Howes et ...
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Relative influence of direct and indirect environmental effects on sestonic chlorophyll-a concentration in Cerrado streams
... on primary productivity, especially given that the Cerrado has experienced strong changes in natural landscapes, converting natural vegetation to agropastoral environments (Klink & Machado, ...
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PRELIMINARY 5TUDIE5 OF PRIMARY PRODUCTION IN THE UBATUBA REGION (Lat. 23°30'5 - Long. 45
... The vertical attenuation and changes in the quality of the light penetration may change the depth of the euphotic zone and certainly the primary productivity, th[r] ...
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DISSOLVED INORGANIC CARBON AND METABOLISM OF AN EUTROPHIC LACUSTRINE SYSTEM: VARIATIONS FROM A 36-HOURS STUDY
... P < 0.01) and DO (r s = 0.449, n = 39, P < 0.01). The correlation between DO and pH was even more evident (r s = 0.904, n = 39, P < 0.01). These data suggest that primary productivity, or ...
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Productivity and monetary policy
... of productivity growth experienced during the previous decades would soon be ...the productivity statistics” (Solow, ...mid-1990s. Productivity gains increased considerably, reaching rates slightly ...
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