Naslov
Assessment of nutrient limitation in Rijeka Bay, NE Adriatic Sea, using miniaturized bioassay

Autori
Vukić Lušić, Darija ; Peršić, Vesna ; Horvatić, Janja ; Viličić, Damir ; Traven, Luka ; Đakovac, Tamara ; Mićović, Vladimir

Izvornik
Journal of experimental marine biology and ecology (0022-0981) 358 (2008), 1; 46-56

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
Adriatic Sea ; Bioassay ; Chlorophyll-a ; DIN:TP ratio ; Limiting nutrients ; Trophic index

Sažetak
In this paper we consider the trophic state and ambient nutrient limitation by the trophic index (TRIX) calculation and nutrient enrichment bioassay using the diatom Phaeodactylum tricornutum at two differently eutrophicated NE coastal Adriatic locations (in the Rijeka Bay area). The first station in Rijeka Port had significantly higher concentrations of dissolved inorganic nutrients and TRIX indices (up to 7.53) than the station near Opatija. The DIN/TP ratios in Rijeka Port were lower (11.03 to 44.47) than those in Opatija (38.67 to 82.00), indicating P limitation in Opatija. The nutrient enrichment bioassays revealed P as the key limiting nutrient for the diatom growth at both sites. In addition, silica limitation was found in all water samples with the exception of the surface water samples in Rijeka Port. Nitrogen limitation was rarely evident.

Izvorni jezik
Engleski

Znanstvena područja
Biologija

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