Nutrients ratio trends in the northern Adriatic Sea and their potential effects on the ecosystem (CROSBI ID 629928)
Prilog sa skupa u zborniku | sažetak izlaganja sa skupa | međunarodna recenzija
Podaci o odgovornosti
Giani, Michele ; Djakovac, Tamara ; Precali, Robert ; Supić, Nastjenjka ; Marić Pfannkuchen, Daniela ; Godrijan, Jelena
engleski
Nutrients ratio trends in the northern Adriatic Sea and their potential effects on the ecosystem
Long-term changes of oceanographic characteristics of the northern Adriatic (NAd) derive from combined effects of the climate oscillations and anthropogenic impact on the biotic components. Time series of oceanographic parameters collected in the period 1977-2014 at stations, under different eutrophic pressures of Rovinj-Po River Delta transect, were statistically analyzed. Furthermore, the variation in nutrient discharge carried by Po river was taken into account. In fact, significantly negative trend of total phytoplankton abundance were evidenced at most stations, and in addition significantly negative trend of diatoms in the bottom layer in spring on more oligotrophic eastern NAd was observed. The recently detected trends in the NAd were directly related to the increased Po River freshwater inflow in period 2009-2014 compared to the drought years. The increasing N/P ratio and decreasing silicate concentrations could have marked effects on the phytoplankton and macrophytes distribution/structure in the NAd, affecting the overall trophic status.
Nutrients; Phytoplankton; Low Oxygen; Long-term changes; Po River; northern Adroatic
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Podaci o prilogu
2015.
nije evidentirano
Podaci o matičnoj publikaciji
Podaci o skupu
Integrated Marine Biogeochemistry and Ecosystem Research - IMBER IMBIZO IV
predavanje
26.10.2015-30.10.2015
Trst, Italija