Naslov
Seagrass Zostera noltei as bioindicator of ecological status of Croatian transitional waters

Autori
Ivan, Cvitković ; Marija, Despalatović ; Vedran, Nikolić ; Srđana, Rožić ; Jelena, Lušić ; Ante, Žuljević

Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, sažetak, ostalo

Izvornik
Mediterranean Seagrass Workshop - Sardinia 2015 / Ivan, Guala ; Maria, Fais - Oristano : International Marine Centre, 2015, 114-114

Skup
Mediterranean Seagrass Workshop - Sardinia 2015

Mjesto i datum
Oristano, Italija, 18.05.2015. - 22.05.2015

Vrsta sudjelovanja
Poster

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
Zostera noltei; ecological status

Sažetak
During the implementation phase of the EU Water Framework Directive, CYMOX method (Cymodocea nodosaindex) was used to determine the ecological status of Croatian transitional waters. During the monitoring program, it was found that C. nodosadoes not sufficiently inhabit some of Croatian transitional waters and that it can not be used as indicator species for the whole area. In contrast, seagrass Zostera noltei is very abundant in almost all Croatian transitional waters therefore slightly modified CYMOX method was applied on this species. In total, 9 meadows from different transitional waters located along entire Croatian coast, were analyzed. For calculation of ecological quality ratio (EQR) values, 12 parameters were considered: total leaf weight, root weight ratio, and percentage of N, ratio of isotope 15N, ratio of isotope 34S, amounts of Cu, Cd, Zn, Ni, Mn, Fe and Pb in rhizomes. Obtained EQR values showed that 3 meadows were in bad ecological status, 4 in good and 2 were in very good ecological status. Significant correlation (R2=0.87 ; p<0.01) between obtained EQR values and measured abiotic parameters (NO3-, NO2-, NH3, PO43-, SiO42-, organic matter in sediment) at sampling location was found. The obtained results show and suggest that seagrass Z. noltei could be used as a bioindicator of ecological status of transitional waters in Croatia.

Izvorni jezik
Engleski

Znanstvena područja
Geologija, Kemija, Biologija

POVEZANOST RADA