خيارات البحث
النتائج 1 - 6 من 6
The biomass investigation of Potamogeton perfoliatus L. from Lake Ohrid in the localities with different anthropogenic influence
2003
Talevska, M. (Hidrobioloski zavod, Ohrid (The Former Yugoslav Republic of Macedonia))
In this paper investigations of biomass of red head grass Potamogeton perfolitus L. from Lake Ohrid were presented. The material was collected from 2 localities along the Ohrid Lake's coast (Grasnica and Kaneo), where anthropogenic influence is different expressed. The results from the investigations show that there are differences in biomass between investigated localities.
اظهر المزيد [+] اقل [-]Dynamics of biomass of stoneworts (Chara spp.) in different depths and localities with different trophic condition of water from the littoral region in Lake Ohrid
2003
Trajanovska, S. (Hidrobioloski zavod, Ohrid (The Former Yugoslav Republic of Macedonia))
In order to determine the dynamic of biomass of stoneworts from Lake Ohrid as a function of the trophic state of the water, we collected samples from four different localities. The localities Sveti Stefan and Mazija, were characterized by oligotrophic state of the water, while the other two Grasnica and Daljan were characterized by eutrophic-mezotrophic water quality. The stoneworts samples were taken from 4-5 different depths from each investigated locality. The results of our investigations have shown that higher trophic level of the water from the littoral region of the localities Grasnica and Daljan (especially in the points of inflow of river Grasnica and Daljan) decreases the amount in stoneworts biomass compared with the biomass of stoneworts collected from the first two localities that characterizes oligotrophic character of the water.
اظهر المزيد [+] اقل [-]Spring and summer (2007) mesozooplankton communities of Boka Kotorska bay [Adriatic sea, Montenegro] | Prolecno-letnja (2007) mezozooplanktonska zajednica Bokokotorskog zaliva [Jadransko more, Crna Gora]
2009
Vukanic, V., Drzavni Univerzitet u Novom Pazaru, Novi Pazar (Serbia). Departman za bio-hemijske i medicinske nauke, Biologija | Hadzibrahimovic, M., Drzavni Univerzitet u Novom Pazaru, Novi Pazar (Serbia). Departman za bio-hemijske i medicinske nauke, Biologija
Zooplankton community analysis was conducted for spring (April - 07) and summer (August - 07) in Boka Kotorska Bay. Analyses included determination of biomass and qualitative composition. Data are given on the number of specimens per cubic meter as well as on the volume organisms. Qualitative composition showed domination Copepoda of zooplanktons groups.
اظهر المزيد [+] اقل [-]Phytoplankton production of the salt puddles Novo Ilje 1 and Novo Ilje 2 near Melenci (Vojvodina, Serbia) | Produkcija fitoplanktona slanih bara Novo Ilje 1 i Novo Ilje 2 kod Melenaca (Vojvoidna, Srbija)
2008
Fuzinato, S. | Fodora, A., Univerzitet u Beogradu, Beograd (Serbia). Bioloski fakultet | Karadzic, V., Institut za javno zdravlje Srbije Dr Milan Jovanovic Batut, Beograd (Serbia) | Subakov-Simic, G. | Krizmanic, J. | Andrejic, J., Univerzitet u Beogradu, Beograd (Serbia). Bioloski fakultet
Explorations were done at the location Ilje, near Melenci. Novo Ilje 1 is a canal used for regulation of irrigation at the local fields. Novo Ilje 2 is a bog that dries out during the periods of low precipitation. Quantitative phytoplankton analysis of Novo Ilje 1 sample from 2003 determined that total amount of cells was 1.5 x 10**5 cell per liter. Total amount of cells in 2004 sample was 1.8 x 10**5 cell per liter. Quantitative phytoplankton analysis of Novo Ilje 2 sample from 2003 determined that total amount of cells was 1.7 x 10**5 cell per liter. Total amount of cells in 2004 sample was 3.1 x 10**5 cell per liter. Phytoplankton biomass in Novo Ilje 1 sample from 2003 was 2.6 x 10**8 cubic micrometer/l, and in 2004 sample was 1.09 x 10**8 cubic micrometer/l. Phytoplankton biomass in Novo Ilje 2 sample in 2003 was 3.06 x 10**8 cubic micrometer/l, and in 2004 sample was 1.62 x 10**8 cubic micrometer/l.
اظهر المزيد [+] اقل [-]Phytoplankton production of the Velika Slatina near Opovo [Serbia]
2007
Subakov-Simic, G.,Bioloski fakultet, Beograd (Serbia) | Karadzic, V.,Institut za javno zdravlje Srbije Dr Milan Jovanovic-Batut, Beograd (Serbia) | Krizmanic, J.
The salt pond Velika Slatina is the old meander of the river Tamis (Serbia). The ecosystem is periodically fill with moderate salt water. Phytoplankton production was 10 times bigger in 2003 than 2006. Ecological conditions were unfavourable for development of phytoplankton community. Diatoms show as the most abundant component in 2003, but euglenoids were in 2006, when bloom of Gloeotrichia natans f. bucharica Kissel was recorded. Results of biomass analysis also show dominant role of diatoms in 2003 and euglenoids in 2006.
اظهر المزيد [+] اقل [-]Phytoplankton biomass of the Danube river [Serbia]
2006
Cadjo, S. (Republicki hidrometeoroloski zavod Srbije, Beograd (Serbia)), E-mail: scadjo@hidmet.sr.gov.yu | Miletic, A. (Republicki hidrometeoroloski zavod Srbije, Beograd (Serbia)) | Bugarski, R. (Republicki hidrometeoroloski zavod Srbije, Beograd (Serbia))
A great floristic variety has been noted according to qualitative analysis of phytoplankton. The presence of 187 taxa from 7 divisions of algae has been noted. The results of quantitative analysis show the dominance of centric diatoms. The high values of biomass that point out on the trophicity increase are noted on the strech from Nestin to Zemun (Serbia) with the maximum at Centa (Serbia) with 15,885 mg/cubic dm. Downstream Zemun, it has been noted gradual decrease of biomass up to Pancevo (Serbia), and afterwards downstream the considerable reduction all the way up to Brnjica (Serbia), where the value of algal biomass was 1,697 mg/cubic dm.
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