Nutrient (N, P, Si) fluxes between marine sediments and water column in coastal and open Adriatic (CROSBI ID 88459)
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Barić, Ante ; Kušpilić, Grozdan ; Matijević, Slavica
engleski
Nutrient (N, P, Si) fluxes between marine sediments and water column in coastal and open Adriatic
Nutrient benthic fluxes, as well as sediment phosphorus concentration at the open sea and coastal water stations of the Central and South Adriatic were studied during 1997-98. The fluxes were oin the range of 0.16 to 2.66 mmol-2d-1 (silicate); from -0.031 to0.215 mmolm-2d-1 (phosphate), and-1.38 to 2.34 mmolm-2d-1 (sum of nitrate, nitrite and ammonia). Silicate flux showed a gradient from the coastal area to the open sea. The relationship between phosphate and silicate fluxes at the open sea stations was established in the warm period of year (R=0.982, p<0.01). A relationship between bentic phosphate flux and sediment inorganic phosphorus concentration was established (R=0.767; p<0.01). Ammonia was the main nitrogen species in the flux at the estuary and bay stations, while the sum of nitrate and nitrite was predominant at the open sea stations.
benthic flux; nutrient; marine sediment; Adriatic Sea
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