Pregled bibliografske jedinice broj: 254339
Phytoplankton primary production and community respiration in the Nature Park Kopački rit (Croatia)
Phytoplankton primary production and community respiration in the Nature Park Kopački rit (Croatia) // The 5th International Conference on Reservoir Limnology and Water Quality: "Reservoir - establishing the balance between human use and biotic integrity"-.
Brno: Academy of Science of the Czech Republic, Institute of Botany, 2006. str. 176-179 (poster, domaća recenzija, sažetak, znanstveni)
CROSBI ID: 254339 Za ispravke kontaktirajte CROSBI podršku putem web obrasca
Naslov
Phytoplankton primary production and community respiration in the Nature Park Kopački rit (Croatia)
Autori
Horvatić, Janja ; Peršić, Vesna ; Has-Schön, Elizabeta
Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, sažetak, znanstveni
Izvornik
The 5th International Conference on Reservoir Limnology and Water Quality: "Reservoir - establishing the balance between human use and biotic integrity"-.
/ - Brno : Academy of Science of the Czech Republic, Institute of Botany, 2006, 176-179
Skup
The 5th International Conference on Reservoir Limnology and Water Quality: "Reservoir - establishing the balance between human use and biotic integrity"-.
Mjesto i datum
Brno, Češka Republika, 27.08.2006. - 31.08.2006
Vrsta sudjelovanja
Poster
Vrsta recenzije
Domaća recenzija
Ključne riječi
specific rate of biomass production; areal net production; P:R ratio; channels and lakes; Nature Park Kopački rit (Croatia)
Sažetak
The paper presents the results of the phytoplankton primary production (gross and net), community respiration and specific rate of biomass production per unit of chlorophyll-a in Čonakut and Hulovo Channels and Lake Kopačko in 1984 and in Lake Sakadaš during 1988, 1990 and 2002, using the in situ light and dark bottle oxygen technique. All parameters of the primary production were characterized by high variability that was the consequence of the seasonal changes as well as differences in sampling dates. Areal net production and ammonium concentration were positively correlated (r = 0.502, P < 0.05, n = 28) in the shallow part of Kopački rit (Lake Kopačko and Čonakut and Hulovo Channels) and negatively correlated (r = -0.729, P < 0.05, n = 14) at Lake Sakadaš. Daily rates for areal NP were as high as 3 g C m-2 d-1 at Čonakut Channel. The lowest average values of areal NP were at lakes Sakadaš (0.61 g C m-2 d-1) and Kopačko (0.69 g C m-2 d-1), indicating mesoeutrophic conditions. In Lake Sakadaš, during the investigated period, respiration was generally higher than production, with the highest portion (70%) of community respiration in the gross production, indicating tendency towards heterotrophy. The highest values of assimilation ratio, as an index of the phytoplankton community nutrient status were determined in early spring, indicating favorable nutrient conditions for phytoplankton growth.
Izvorni jezik
Engleski
Znanstvena područja
Biologija
