Anabaena bergii Ostenf. [f. minor (Kisselev) Kossinsk.] (Cyanoprokaryota): The first record in Serbia, its taxonomic status, and that of the genus Anabaena Bory ex Born. & Flah.

Within the framework of a detailed survey of the algal community in salt marshes of the Vojvodina Province (Northern Serbia), we rather unexpectedly found the blue-green alga Anabaena bergii Ostenf. [forma minor (Kisselev) Kossinsk.] in water samples from Slatina Pond near Opovo. Our finding represents its first record in Serbia. The present paper gives general characteristics of this alga and of the habitat in which it was found. Based on analysis of a large number of works dealing with characteristics and the taxonomic status of the genus Anabaena, the species A. bergii, and its forma minor, it is concluded that there are numerous problems in taxonomy of the given genus, with no consensus among researchers. In light of the available data, the authors retain the name of the species A. bergii, but accept forma minor with some reserve

The first finding of Cylindrospermopsis raciborskii (Woloszińska) Seenayya et Subba Raju, 1972 (Cyanoprokaryota) in Serbia

Within the framework of a detailed survey of the algal community in the salt marshes of the Vojvodina Province (northern Serbia), we found Cylindrospermopsis raciborskii (Woloszińska) Seenayya et Subba Raju in water samples from Slatina Pond near Opovo. This is, de facto, the first finding of C. raciborskii in Serbia. It is of particular importance given that C. raciborskii produces cyanotoxins and that available data show that in Serbia this alga is expanding its range of distribution, notably in carp ponds. The present paper is concerned with both the general and specific characteristics of the alga and the specific characteristics of the habitat in which the alga was found

Lichens as bioindicators of air quality in Dimitrovgrad (South-Eastern Serbia)

Air pollution detection in Dimitrovgrad has not been done yet. In this work different lichen have been used as a bioindication to establish different air pollution levels. At 18 investigated points 22 lichen taxa have been found. Using the Index of Atmospheric Purity (IAP) it has been found that there are 3 different air pollution zones in Dimitrovgrad: 'lichen desert', 'transitional' and 'normal zone'. The most sensitive lichen taxa in Dimitrovgrad are Evernia prunastra, Ochrolechia pallescens, Parmelia sulcata, and Physcia tenella and the most tolerant are Phaeophyscia orbicularis, Physcia adscendens, Physconia distorta, Physconia grisea, and Xanthoria parietina.

New record of endangered red alga Bangia atropurpurea (A. Roth) C. Aardh (Bangiales, Rhodophyta) in the Nišava River, Serbia

Bangia atropurpurea was found at two new localities in the Nišava River (Southern Serbia). In Serbia, this species is endangered. It has been found so far in the Trgoviški Timok River, the Gvozdovačka River and the Raška River. With the two new localities in the Nišava River, at present Bangia occupies four rivers (five localities). New findings are important for the protection of the biodiversity of red algal flora in the region, and provide useful information on the ecological preferences of the species in Serbia

Biological Indication of Heavy Metal Pollution in the Areas of Donje Vlase and Cerje (Southeastern Serbia) Using Epiphytic Lichens

The performance of two epiphytic lichen species (Evernia prunastri (L.) Ach. and Parmelia sulcata Taylor) as bioindicators of heavy metal pollution in natural areas around the city of Nis (southeastern Serbia) were evaluated. The concentration of 19 heavy metals in lichen samples was measured by inductively coupled plasma-optical emission spectroscopy. For the majority of the elements the concentrations found in Parmelia sulcata Taylor were higher than in Evernia prunastri (L.) Ach. In addition, interspecific differences in heavy metal accumulation between Evernia prunastri (L.) Ach. and Parmelia sulcata Taylor are observed. Parmelia sulcata Taylor showed a tendency to accumulate Fe, Mn, Ni and Ti while Evernia prunastri (L.) Ach. preferentially concentrated Cu on both locations. A clear distinction between lithogenic (Mn-Cu-Ti) and atmospheric elements (Ni-Co-Cr-Ag-Pb-Hg) was achieved by cluster analysis

– THE FIRST RECORD IN SERBIA, ITS TAXONOMIC STATUS, AND THAT OF THE GENUS ANABAENA BORY EX BORN. & FLAH.

Abstract — Within the framework of a detailed survey of the algal community in salt marshes of the Vojvodina Provinc

Desmid flora (Chlorophyta, Zygnematophyceae) of the Danube in the province of Vojvodina (Northern Serbia)

This paper presents results of a detailed investigation into the qualitative composition of the desmid flora of the Danube performed from April of 2002 to May of 2003. A total of 70 desmid taxa belonging to four genera were recorded. Forty-seven taxa are new to the Vojvodina stretch of the Danube, while Cosmarium kjellmanii, Staurastrum bloklandiae, and S. smithii are taxa new to the algal flora of Serbia. Qualitative dominance of desmid taxa typical of alkaline and eutrophic ecosystems was observed. The qualitative composition of planktonic taxa, their quantitative composition, and regular seasonal dynamics of the desmid community were analyzed in the relation to physico-chemical characteristics of the water. Water quality was analyzed on the basis of desmids, which are bioindicators. The partly unexpected presence of certain desmid taxa, i.e., several typical acidophilous species, alpine forms, and/or taxa characteristic of oligotrophic water was recorded

DOI:10.2298/ABS1003643S LICHENS AS BIOINDICATORS OF AIR QUALITY IN DIMITROVGRAD (SOUTH-EASTERN SERBIA) 1

Abstract- Air pollution detection in Dimitrovgrad has not been done yet. In this work different lichen have been used as a bioindication to establish different air pollution levels. At 18 investigated points 22 lichen taxa have been found. Using the Index of Atmospheric Purity (IAP) it has been found that there are 3 different air pollution zones in Dimitrovgrad: “lichen desert”, “transitional ” and “normal zone”. The most sensitive lichen taxa in Dimitrovgrad are Evernia prunastra, Ochrolechia pallescens, Parmelia sulcata, and Physcia tenella and the most tolerant are Phaeophyscia orbicularis, Physcia adscendens, Physconia distorta, Physconia grisea, and Xanthoria parietina