Naslov
Procjena potencijala rasta alga minijaturnim bioassay-om
(Algal growth potential estimation by miniature bioassay)

Autori
Horvatić, Janja

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

Izvornik
Zbornik sažetaka priopćenja / Hrvoje Gomerčić - Zagreb : Hrvatsko biološko društvo, 1994

Skup
Peti kongres biologa Hrvatske

Mjesto i datum
Pula, Hrvatska, 03.10.1994. - 07.10.1994

Vrsta sudjelovanja
Ostalo

Vrsta recenzije
Nije recenziran

Ključne riječi
potencijal rasta alga; Chlorella kessleri; metoda minijaturiziranog bioassay-a; kemija vode; Kopački rit
(algal growth potential; Chlorella kessleri; miniature bioassay method; water chemistry; Kopački Rit)

Sažetak
The researches of algal growth potential of Chlorella kessleri Fott et Novak, culture were done by miniature bioassay method in the Stara Drava (Old Drava) channel and in Sakadaš Lake (Special zoological reserve &laquo ; Kopački rit&raquo ; ) in 1990 and 1991. The maximal biomass growth, AGP (26.0 mg/L) of Chlorella kessleri was achieved after 432 hour cultivation period. In the period after 432 hours up to 792 hours the biomass decreased. In the whole period from December 1990 to March 1991 the addition of nutrients (N, P) did not remarkably cause any changes in the algae biomass. However, in April 1991 the added nutrients increased the Chlorella kessleri biomass that had been as low as 2.7 - 14 mg/L in original water Stara Drava samples. The low concentration of nutrients in the Stara Drava waters out in April 1991 was the results of the micro- and macrovegetation, unlike in the waters of Sakadaš Lake, where the minimal nitrogen concentration was found out in December 1990. Minimal phosphorus concentration was in December 1990 and January 1991, it means in the stagnation period. The cleaning of the lake bottom, previously done caused probably such a low concentration of the nutrients.

Izvorni jezik
Hrvatski

Znanstvena područja
Biologija

POVEZANOST RADA