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Comparison of primary productivity estimates in the Baltic Sea based on the DESAMBEM algorithm with estimates based on other similar algorithms

100%

Stramska M., Zuzewicz A.

Oceanologia

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2013

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tom 55

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nr 1

2

Primary productivity of Kumshi reservoir, Kalaburagi District, Karnataka

100%

Fameeda S., Rajashekhar M., Parveen Z., Vijaykumar K.

International Letters of Natural Sciences

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2015

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tom 44

In the present investigation, primary productivity of Kumshi reservoir of Kalburagi District has been studied for the period of two years (2012-2014). The results reveals that, gross primary productivity of Kumshi reservoir followed an increasing trend through the northeast monsoon season towards summer season, whereas, net primary productivity of Kumshi reservoir is followed a more or less similar trend of increasing towards northeast monsoon season and summer season, while community respiration of reservoir also followed a similar trend of oscillation increasing trend towards summer and northeast monsoon season during the study period.

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Primary productivity off Western and Southern Portuguese waters

100%

Cavaco M. H., Cabecadas G.

Bulletin of the Sea Fisheries Institute

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2003

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nr 1

4

Nutrient flux fuels the summer primary productivity in the oligotrophic waters of the Gulf of Aqaba, Red Sea

100%

Badran M. I., Rasheed M., Manasrah R., Al-Najjar T.

Oceanologia

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2005

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tom 47

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nr 1

The thermohaline characteristics of the Gulf of Aqaba, Red Sea, depict a welldefined seasonal pattern of winter mixing from December to April and summer stratification from May to November. This thermohaline structure is a major controlling factor of the nutrient, chlorophyll a and primary productivity seasonal cycles. The nitrate and chlorophyll a concentration records generated down to 200 m at a vertical resolution of 25 m – weekly during 1994, 1995 and every two weeks from April 1997 through to December 2000 – are employed to assess the nitrogen flux across the summer thermocline of the Gulf of Aqaba. The flux calculations are based on a simple diffusion model that incorporates the physical stress eddy diffusivity factor Kz and a biological stress factor k. Both Kz and k are calculated using the Michaelis-Menten equation and the nitrate concentration gradient. The total nitrate flux of the Gulf of Aqaba during the seven summer months (May–November) is estimated at 0.52 moleN m−2. In relation to established primary productivity values (75.5 gC m−2 (May November)−1) and the generated chlorophyll a records, this yields an f fraction of new to total primary production of 0.50. This relatively high f value is discussed with respect to the geophysical characteristics of the Gulf of Aqaba and similar oceanic basins. The remaining 50% is accounted for by cross-sectional flow from the relatively nutrientrich coral reef coastal habitat and rapid recycling, triggered by high irradiance and water temperature.

5

Seasonal changes of soil nitrogen mineralization along restoration gradient of sandy grassland, Northern China

80%

Lv P., Zuo X., Sun S., Zhang J., Zhao S., Hu Y.

Polish Journal of Ecology

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2020

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tom 68

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nr 4

6

Produktywnosc pierwotna planktonu dwoch troficznie zroznicowanych jezior Poleskiego Parku Narodowego

61%

Czernas K.

Acta Agrophysica

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2002

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tom 68

13-20

Ograniczanie wyników

2 Oceanologia

1 Acta Agrophysica

1 Bulletin of the Sea Fisheries Institute

1 International Letters of Natural Sciences

1 Polish Journal of Ecology

1 Al-Najjar T.

1 Badran M. I.

1 Cabecadas G.

1 Cavaco M. H.

1 Czernas K.

1 Fameeda S.

1 Hu Y.

1 Lv P.

1 Manasrah R.

1 Parveen Z.

1 Rajashekhar M.

1 Rasheed M.

1 Stramska M.

1 Sun S.

1 Vijaykumar K.

1 Zhang J.

1 Zhao S.

1 Zuo X.

1 Zuzewicz A.

1 2020

1 2015

1 2013

1 2005

1 2003

1 2002

Comparison of primary productivity estimates in the Baltic Sea based on the DESAMBEM algorithm with estimates based on other similar algorithms

Primary productivity of Kumshi reservoir, Kalaburagi District, Karnataka

Primary productivity off Western and Southern Portuguese waters

Nutrient flux fuels the summer primary productivity in the oligotrophic waters of the Gulf of Aqaba, Red Sea

Seasonal changes of soil nitrogen mineralization along restoration gradient of sandy grassland, Northern China

Produktywnosc pierwotna planktonu dwoch troficznie zroznicowanych jezior Poleskiego Parku Narodowego