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Bibliographic record number: 787387

Journal

Authors: Giani, Michele; Djakovac, Tamara; Precali, Robert; Supić, Nastjenjka; Marić Pfannkuchen, Daniela; Godrijan, Jelena
Title: Nutrients ratio trends in the northern Adriatic Sea and their potential effects on the ecosystem
Source:
Meeting: Integrated Marine Biogeochemistry and Ecosystem Research - IMBER IMBIZO IV
Location and date: Trst, Italija, 26-30.10.2015.
Keywords: Nutrients; Phytoplankton; Low Oxygen; Long-term changes; Po River; northern Adroatic
Abstract:
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.
Type of meeting: Predavanje
Type of presentation in a journal: PP presentation
Type of peer-review: International peer-review
Project / theme: 098-0982705-2707, 098-0982705-2731
Original language: ENG
Category: Znanstveni
Research fields:
Geology,Biology
Contrib. to CROSBI by: Tamara Đakovac (Tamara.Djakovac@irb.hr), 25. Stu. 2015. u 13:34 sati



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