2013    №1  №2  №3  №4

№1

Genkal S.I., Kulikovskiy M.S., Kuznetsova I.V.

NEW DATA TO CENTROPHYCEAE (BACILLARIOPHYTA) OF LAKE BAIKAL, RUSSIA

Our results have shown 23 new species, varieties and forms from 9 genera: Aulacoseira – 5, Cyclostephanos – 1, Cyclotella – 4, Discostella – 1, Ellerbeckia – 1, Melosira – 1, Orthoseira – 1, Stephanodiscus – 8, Thalassiosira – 1. We have found three new for Baikal flora species – Stephanodiscus delicatus and Aulacoseira italica, Orthoseira dendroteres, last two species were found in hot spring that has connection with lake. The benthos and phytoplankton samples were taken on the eastern shore of Southern and Middle Baikal. There is a wider variability of morphological characters in found taxa, than on the basis literature data.

Ryzhik I.V.

ASSESSMENT OF METABOLIC ACTIVITY OF CELLS OF FUCOID ALGAE BY TETRASOL METHOD

The tetrasol method (МТТ-test) for assessment of metabolic activity of cells of fucoid algae was modificated. Estimation of optimum conditions both sample preparation and reaction passing: concentration of MTT solution, temperature, time of interaction with reagent was carried out. A possibility of the MTT-test usage for an estimation of influence of environmental factors (including oil pollution) on a seaweeds is shown.

Minicheva G.G., Tuchkovenko Yu.S., Bolshakov V.N., Zotov A.B., Rusnak E.M.

RESPONSES OF ALGAE COMMUNITIES OF THE NORTHWESTERN BLACK SEA ON THE IMPACT OF LOCAL, REGIONAL AND GLOBAL FACTORS

The reactions of phytobenthos and phytoplankton communities of the Northwestern Black Sea to influence of factors of local, regional, and global levels in 2000−2011 years was estimated with the use of holistic approach and methods of morphofunctional ecology. The expert evaluation of power of influence of factors at each level was implemented on the basis of the estimation scale containing seven categories. The local level is characterized by the highest value of negative influence caused by intensive transformation of natural biotopes in a coastal zone. At the regional level there are credible processes of restoration of plant communities in response to the reduction of eutrophication. At the global level there is growth of climatic anomalies, which can substantially change speed of ecological processes and structural-functional organization of biotic component of Black Sea ecosystem.

Aizdaicher N.А., Stonik I.V.

INFLUENCE SOLINITY MARINE WATER ON ATTEYA WEST (BACILLARIOPHYTA) FROM SEA OF JAPAN (RUSSIA)

The peculiarities of development of the three species of benthic diatoms of the genus Attheya West: A. arenicola N.L. Gardner et R.M. Crawford, A. ussurensis Stonik, Orlova et R.M. Crawford and A. longicornis R.M. Crawford et N.L. Gardner in laboratory cultures isolated from the Sea of Japan were experimentally studied at water salinity decline conditions. It was revealed that growth rate of cultured cells decreased and morphological changes in the cells were observed at water salinity lower than 12 ‰. The most considerable changes in growth rate of cultured cells and in their morphology at low water salinities were found for A. arenicola.

Solonenko A.N.

FAT-ACID STRUCTURE OF BENTHOS MACROSCOPICAL SEAWEEDS AND PELOIDS SPREADING OF EPHEMERAL WATER POOL

The fat-acid structure of benthos macroscopical seaweeds and peloids spreading of ephemeral water pool, situated on the Berdyansk foreland near the Lake Krasne and the Arabat Spit not far from the Lake Ziablovske is studied and analyzed. The author proves that the repertoire of seaweeds and peloids spreading fat acids coincides considerably.

Bilous O.P., Lilitskaya G.G., Kryvenda A.A.

SEASONAL VARIABILITY OF SOUTHERN BUG RIVER UPSTREAM PHYTOPLANKTON

Seasonal variability of phytoplankton species composition and differences of its quantitative characteristic were studied on the station of stationary observation in town Khmelnitsky. It was revealed 192 algae species (217 infraspecific taxa), 3 of which are new for Ukrainian flora. High correlation between temperature and species diversity of phytoplankton were carried out.

Ryabushko L.I., Firsov Yu.K., Lokhova D.S., Eremin O.Yu.

COMPOSITION, QUANTITATIVE AND PRODUCTION CHARACTERISTICS OF PHYTOPERIPHYTON GLASS PLATES AT DIFFERENT TERMS EXPOSURE IN THE BLACK SEA

For the first time investigated the species composition, abundance and biomass of microalgae, the intensivity of photosynthesis (R/W) and primary production (GPP) of phytoperiphyton experimental glass-plates in the Black Sea in short-term and long-term. Exposure during the period at January 2007 to March 2008 in the Karantinnay Bay (Sevastopol) at a depth of 2 m. 111 taxa of algae, including 12 species of brown, green and red, 99 taxa from five phyla of Bacillariophyta (85), Dinophyta (5), Chlorophyta (4), Haptophyta (2) and Cyanoprokaryota (3) was found. The main condition-indices obtained by the radiocarbon method. The spring (March) of maximum abundance (2180,8•10³ cells•cm^-2) and biomass (0,543 mg•cm^-2) of diatoms, dry weight (648,0 g•m^-2), GPP = 44200 mg C•m²•day^-1 and R/W = 5,7 (March) and 7,62 mkg C•mg^-1•h^-1 (July) of phytoperiphyton were recorded.

Kapustin D.A.

FRESHWATER ALGAE OF THE POLESSIAN NATURE RESERVE (UKRAINE)

The results of the studies of the Polessian Nature Reserve (PNR) algal flora are given. This flora comprises 707 species (773 infraspecific taxa) from 12 divisions. Among them there are numerous rare species and 7 species from Red Data Book of Ukraine that indicates high floristic and sozological value of this flora. Distributional features of algae on the territory of PNR are discussed. One new taxonomic status (Lagynion oedotrachelum (Ellis-Adam) D. Kapustin stat. nov.) is suggested.

Bukhtiyarova L.N., Stanislavskaya E.V.

PSAMMOTHIDIUM VERNADSKYI SP. NOV. (BACILLARIOPHYTA) FROM THE BLUE LAKE, EAST SIBERIA, RUSSIA

Bacillariophyta species composition  from two lakes in East Siberia was investigated. In one of them Psammothidium vernadskyi Bukht. et Stanislavskaya sp. nov. was found. The diagnosis, illustrations and other necessary material for the new taxon attributes are provided. Typificationof new species and infraspecific taxa of Bacillariophyta is discussed.

№2 (2013)

Shorenko K.I., Davidovich O.I., Davidovich N.A.

ON THE TAXONOMY, REPRODUCTION, AND DISTRIBUTION OF THE DIATOM NITZSCHIA LONGISSIMA (BRÉB.) GRUNOW (BACILLARIOPHYTA)

By now, sufficient factual material relating to the diatom alga Nitzschia longissima has been accumulated in the literature. Obviously, all floristic data obtained with the use of information based on a broad understanding of the species will also be questionable. Under the name N. longissima several species are hidden. They belong to a heterogeneous complex longissima–closterium–reversa. Based on the analysis of literature data, as well as on the study of type material and thirty-six clones, gathered on the Atlantic coast of France and in the Black Sea near Karadag, we proposed to apply to N. longissima a concept sensu stricto, whichmay eliminate many problems in the identification of this species.

Borodina A.V., Ladigina L.V.

THE CULTIVATING CONDITIONS EFFECT ON ACCUMULATING THE CAROTENOIDS IN PHAEODACTYLUM TRICORNUTUM BOHL. (BACILLARIOPHYTA)

The qualitative and quantitative structure of the diatom microalgae Phaeodactylum tricornutum carotenoids, cultivated under the different temperature and illumination was investigated. It was stated, that carotenoid composition of the microalgae is represented by 5 fractions: ß-carotene, fucoxanthine, diadinoxanthine diatoxanthine and diadinochrome. Fucoxanthine is located in two-isomeric forms: trans- and cis-. It was stated, that carotenoids accumulation depended on the cultivating conditions. The maximal fucoxanthene accumulation occurs under the temperature 30 ^оС and constant illumination 4,5 klx.

Mineeva N.M., Korneva L.G., Solovyeva V.V.

SEASONAL AND LONG-TERM DYNAMICS OF CHLOROPHYLL CONTENT PER UNIT OF PHYTOPLANKTON BIOMASS IN THE VOLGA RIVER RESERVOIRS (RUSSIA)

We consider the seasonal and long-term dynamics of chlorophyll content per phytoplankton biomass unit (сhl./B) in Sheksna and Rybinsk reservoirs (Upper Volga region). The values of сhl./B (0,10–4,5) fit into the limits given in literature. The dependence of сhl./B on temperature and light conditions, nutrient contents, phytoplankton development and composition is analyzed. Growth of mean seasonal сhl./B values in the Rybinsk reservoir that varied from 0,22 to 0,78 during 1969–1984 and increased up to 0,89 in 2006 was revealed.

Begun A.A., Zvyagintsev A.Yu.

PERIPHYTON BACILLARIOPHYTA OF THE HYPEREUTROPHIC ARTIFICIAL LAGOON AROUND VLADIVOSTOK (RUSSIAN COAST, SEA OF JAPAN)

Species composition and quantitative characteristics year-round research of periphyton diatoms on experimental plates in hypereutrophic artificial lagoon around Vladivostok are studied. Seventy-nine species and interspecific taxa by Bacillariophyceae (58), Fragilariophyceae (6) и Coscinodiscophyceae (15) classes are revealed. Total periphyton density was varied from 0,026 to 13,9 mln cells/m², the indicators of powerfully organic water pollution α-mesosaprobionts has dominant status (80,03 %). The average annual values of number species, species diversity Shannon and evenness Pielou indexes in diatom periphyton were low (n = 9,5, H = 1,38, e = 0,39 inf. byt/m², respectively). In the winter period and to beginning spring periphyton have not developed almost, it is caused by influence negatively light condition in this lagoon as results strong freezing-over was showed. The features of quantitative periphyton development in year-round become formed by specific of physical and hydrological lagoon conditions, as well as significant eutrophication ones by sewage waters, contributing the mass development power organic pollution indicators.

Andreyeva-Grigorovich A.S., Shevchenko T.V.

HAPTOPHYTES AND DINOPHYTES FROM OLIGOCENE BASINS OF THE NORTHERN PERI-THETYS

A study of nannofossils and dinocysts from different types of Oligocene basins of the Northern Peri-Thetys resulted in paleoecological reconstructions. The following phytoplankton associations were recognized: cold-water; littoral shallow-water relatively cold- and warm-water; lagoon; semi-isolated with endemics. Nannofossils were present in carbonaceous sediments, with more favorable conditions for them being in the Carpathian basin of Krosnensky type, in the earliest Rupelian of Germany and Southern Ukraine. Dinocysts were identified in all types of Oligocene basins. Correlation levels identified by nannofossils and dinocysts allowed us to substantiate the lower and upper Oligocene boundaries and degree of desalination in the Middle Rupelian.

Pautova L.A., Silkin V.A., Lifanchuk A.V.

NEW FOR BLACK SEA SPECIE CHAETOCEROS MINIMUS (Basillariophyta): NATURAL OBSERVATIONS AND EXPERIMENTAL RESEARCHES

New for Black Sea algae species – small cell diatomea Chaetoceros minimus (Levander) Marino, Giuffré, Montresor et Zingone was discovered in spring 2005 in northeastern shelf water with maximum abundance 1,6•10⁵ cell/L. In this period specie was registered in experimental work of natural phytoplankton continuous culture. In the end of May 2006 Ch. minimus was discovered in the water of northeastern part of Black Sea (4,4•10⁵ cell/L) in the period of intensive bloom of coccolithophore Emiliania huxleyi (Lohm.) Hay et Mohl. In June 2011 this alien specie had intensive growth in the bath phytoplankton culture. By used experiments with nitrogen and phosphorus supply it was showed that the growth of Ch. minimus will be intensive in relatively high phosphorus concentration and low nitrogen concentration. Maximal specific growth rate of Ch. minimus is considerably exceeded this parameter of E. huxleyi and this alien specie has high capability to intrude in ecosystem and to be dominant specie in phytoplankton. The consequence of this introduction will be unpredictable.

Shkundina F.B., Gabidullina G.F., Judikina M.G.

CENOSES OF CYANOPROKARYOTA AND ALGAE IN SEWAGE TREATMENT

During the research period from 2005 till 2008 to Ufa we identified 108 species and intraspecific taxa of algae and cyanoprokaryote from 71 genera, 24 orders, 11 classes and 7 division. To Beloreck (2008–2010) we identified 132 species and intraspecific taxa of algae and cyanoprokaryote from 73 genera, 42 families, 26 orders, 9 classes and 7 division. The coefficient of community species composition showed distinct cyanoprokariotе algal cenoses (CPAC) aerotank. Comparison of the taxonomic structure CPAC by department showed similarities CPAC Beloretsk activated sludge treatment facilities with the city of Ufa. In Beloretsk in the aerotank there is a greater diversity of algae due to Bacillariophyta. Our studies indicate that the selection bioestimatorov is a good instructional techniques in the analysis of the status of wastewater treatment facilities.

№3 (2013)

A.I. Bozhkov, E.I. Sysenko, N.G. Menzyanova, V.Yu. Kizilova

DYNAMIC OF FUNCTIONAL EPIGENOTYPES DUNALIELLA VIRIDIS TEODOR. AT CUMULATIVE AND QUASICONTINUOUS CULTIVATION

The dynamics of Dunaliella viridis epigenotypes at cumulative and quasicontinuous cultivation was studied. It was found that the pattern of nucleic acids, proteins, triacylglycerides, β-carotene, which characterizes epigenotype depends on the conditions of cultivation of microalgae. Quasicontinuous cultivation of D. viridis can increase biomass yield by 23 % compared to the cumulative cultivation, with the specific productivity was 3 times less than the cumulative cultivation. It was found that the growth rate of the microalgae correlates with the accumulation exopolysaccharides in the culture medium.

T.I. Mikhailyuk

TERRESTRIAL ALGAE FROM GRANITE OUTCROPS OF RIVER VALLEYS OF UKRAINE

The results of investigation of algae from granite outcrops of river valleys located in three climatic zones of Ukraine – Polesye (Teteriv River), Forest-Steppe (Ros River) and Steppe (Yuzhnyi Bug River) are presented. 179 algal species were found (8 new species for Ukrainian flora), among them green (mostly trebouxiophycean) and streptophyte algae are led. Green conjugating algae are distributed on outcrops of Polesye as well; cyanoprokaryotes and diatoms are numerous on outcrops of Forest-steppe zone; cyanoprokaryotes are characteristic for outcrops of Steppe zone. Dominant complex included common for all granite outcrops genera Elliptochloris Tscherm.-Woess, Apatococcus F. Brand emend. Geitler, Desmococcus F. Brand emend. Vischer, Klebsormidium P.C. Silva et al. etc. Specificity of dominant species of outcrops of Teteriv River (Polesye) are determined by Trentepohlia E. Martini and Mesotaenium Nägeli, Ros River (Steppe zone) – Chlorogloea Wille, Gloeocapsa Kütz., Prasiolopsis Vischer etc., Yuzhnyi Bug River (Forest-Steppe zone) – Trentepohlia, Chlorogloea, Dilabifilum Tscherm.-Woess, etc. Two ecological groups of algae – epilithic and chasmoendolithic, are presented on granite outcrops of all investigated outcrops: epiliths are occurred in shaded places and near the water, chasmoendoliths were found on dry lighted slopes, but sometimes occurred in shade also. Species composition and dominant complex of algae from granite outcrops depend on conditions of particular habitat as well as on climatic zone. Comparison of data about algae from granite outcrops with other stone substrates of Ukraine shows that species composition is relatively similar on substrates with close chemical peculiarities, but physical characters perhaps less influence on algae.

A.A. Begun

THE SPECIES COMPOSITION OF BACILLARIOPHYTA OF MACROPHYTES EPIPHYTON IN PETER THE GREAT BAY (RUSSIAN COAST, SEA OF JAPAN)

Species diversity of epiphytic diatoms in Peter the Great Baу, Sea of Japan is studied. 112 species and intraspecific taxa of diatoms from Bacillariophyceae (79), Fragilariophyceae (15) and Coscinodiscophyceae (18) are revealed. 9 species for Russian water of Japan Sea first time are marked. Minimum of number species of epiphytic diatoms (50 species), increase contribution of α-mesosaprobionts (38 % from total number species) and predominance of  brakishwater and marine microalgae forms (43 %) by median water salinity 21,5 ‰ were marked for powerfully pollution water areas. The background water areas are characteristically by maximum epiphytic species diversity (77), absence of α-mesosaprobionts (0 %), and  increase contribution of marine microalgae forms (76 %) by water salinity 33,03 ‰. The axial thallus type has total number of epiphytic diatoms was 1,5–3 once more, then by lamellar thallus. The obtain data may draw a conclusion about more unfavorably ecological situation in present day be available in quite the coastal number water areas of Peter the Great of Sea of Japan, subjecting to chronic anthropogenic pollutions. These water areas included of Vladivostok, Nakhodka and Slavyanka ports waters and estuary type some basins.

G.V. Pomazkina, E.V. Rodionova, O.Yu. Makarevich

UNIQUENESS OF DIATOM FLORA FROM THE STRAIT OF OLKHONSKIE VOROTA AND THE GULF OF MALOE MORE, LAKE BAIKAL (RUSSIA)

The flora of the Gulf of Maloe More, including the Strait of Olkhonskie Vorota, Lake Baikal, is characterised by high diversity of benthic diatoms. Using electron microscopy, 458 species, varieties, and forms of diatoms of the class Pennatophyceae were identified. Among the species detected, 75 % belonged to rare, endemic, and novel ones. The typical species, characteristic of the littoral area in Lake Baikal, were represented by 25 %. Specific characteristics of the taxonomic structure of the species from different sites were described, as well as the abundance of each species was estimated. In addition, the diatom diversity was compared with the data obtained in the past century.

O.P. Bazhenova, S.I. Genkal, V.E. Shakhoval, E.A. Bragina

CENTRIC DIATOM ALGAE (CENTROPHYCEAE) OF THE BUKHTARMA RESERVOIR (THE IRTYSH RIVER, KAZAKHSTAN)

Scanning electron microscopy study of centric diatoms of the plankton in the Bukhtarma reservoir (the Irtysh River, Kazakhstan) have revealed 11 taxa of Centrophyceae from 7 genera, including 5 new for the reservoir. A revision of the species composition resulted in composing the list of centric diatoms of the Bukhtarma reservoir.

M.D. Zhezhera

CYANOPROKARYOTA OF WATER BODIES OF LEFT-BANK POLISSYA (UKRAINE)

The data on cyanophycean flora of water bodies of Left-Bank Polissya have been presented. Totally 154 species (160 infr. taxa) have been found. 45 species and infraspecies taxa  are first cited for studied area, among them 12 are new for Forest zone.

B. Zarei-Darki

ALGAL FLORA OF RESERVOIRS IN IRAN

Algal flora of Iran reservoirs was investigated. There were recorded 1129 species of algae (1339 infraspecific taxa) from 9 divisions. Among of them are Cyanophyta – 172 species (183 infr. taxa), Euglenophyta – 53 (57), Chrysophyta – 17 (21), Xanthophyta – 39 (40), Bacillariophyta – 531 (677), Dinophyta – 25 (30), Cryptophyta – 7 (7), Chlorophyta – 172 (185) and Streptophyta – 113 (129). The data on spectra of conducting genera are resulted. Algal flora of studied reservoirs was proposed to group into 5 groups: diatoms, diatomic-green, datomic-blue green, diatomic-streptophyta and diatomic-blue green-green or diatomic- green- blue green. The comparative characteristics of received data was carried out with algal flora of Central Asia.

A.P. Olshtynskaya, Yu.A. Tymchenko

FOSSIL HOLOCENE DIATOMS OF THE KARKINITSKYI BAY, THE BLACK SEA, UKRAINE

The fossil diatom assemblages in Holocene coastal deposits of the Black Sea, Karkinitskyi region were investigated firstly. New data on diatom diversity and vertical transformation of taxonomical composition and ecological structure allowed to reconstruct the Holocene palaeoenvironments in two lagoons.

№4 (2013)

S.I. Genkal

MORPHOLOGICAL VARIABILITY, TAXONOMY, AND ECOLOGY OF SPECIES OF THE COMPLEX HANDMANNIA COMTA / H. RADIOSA (BACILLARIOPHYTA)

The morphological study of 22 populations of the complex Handmannia comta (Ehrenb.) Kociolek et Khursevich / H. radiosa (Grunow) Kociolek et Khursevich from water bodies of different types, geographic location, and trophic status has shown a significant variability in the majority of quantitative (the valve diameter, size of central area, number of striae and marginal fultoportulae in 10 m m, number of satellite pores of central fultoportulae, number of thin costae in alveoli, number of rings of central fuloportulae, number of rimoportulae, number of punctuate rows in striae) and qualitative (the relief of central area, presence of granules on valve and branching costae among alveoli, arrangement of central processes and rimoportulae, size of alveoli, orientation of rimoportulae slit) morphological characteristics (19) and their overlapping. The obtained results have allowed the author to add to information on H. comta of H. comta, refer H. radiosa and Cyclotella balatonis Pant. to its synonymy as well as specify the ecology and distribution of H. comta.

A.V. Lifanchuk

MORPHOLOGICAL STRUCTURE OF DOMINATING SPECIES OF DIATOMS IN THE NORTH-EASTERN BLACK SEA

Influence of mineral nutrition element concentration upon the morphological structure (number of cells in the chain) and productional characteristics of leading complex of phytoplankton in the North-Eastern Black Sea in 2009-2012 was revealed. In the tests with nitrogen and phosphorus addition it was shown that increasing of the number of cells in the chain of Dactyliosolen fragilissimus (Bergon) Hasle and Sceletonema costatum (Grev.) Cleve diatoms took place under a high concentration of both mineral nutrition elements. Growing of phosphorus concentration and small content of nitrogen resulted in increasing of cellular chain of Leptocylindrus danicus Cleve and Thalassionema nitzschioides Grunow. Addition of mineral nutrition elements has not influenced on the change of cellular chain of Pseudo-nitzschia pseudodelicatissima (Hasle) Hasle diatom. Experiments have shown a close interconnection between cell quantity and cell number in the chain of Th. nitzschioides, D. fragilissimus and S. costatum. For L. danicus the correlation between these parameters was absent, and for P. pseudodelicatissima the correlation was very weak. Intensification of growth of diatom biomass was observed when nitrogen and phosphorus were added simultaneously.

A.D. Temraleeva, E.V. Mincheva, D.Yu. Sherbakov, D.L. Pinsky

DNA-BARCODING OF GREEN ALGAE: A REVIEW

The features and problems of taxonomical identification of green algae are discussed in this review. The examples of the polyphyly in some genera of Chlorophyta and the difficulties of selection of diagnostic morphological properties are given. The new approach to study of biodiversity – DNA-barcoding are considered, its steps and requirements to DNA-barcodes are described. The advantages and disadvantages of eventual DNA-barcodes for green algae are shown. The data on successful usage of certain primers are presented for a number of green algae.

L.I. Ryabushko, D.S. Balicheva, A.V. Strijak

DIATOM EPIPHYTON OF SOME GREEN ALGAE AND PERIPHYTON OF ANTHROPOGENIC SUBSTRATES OF С RIMEAN COASTAL THE BLACK SEA (UKRAINE)

The species diversity of diatom epiphyton of 14 species of green algae-macrophytes and periphyton of glass plates in the Crimean coast the Black Sea from 1987 to 2012 have been studied. Total 106 taxa of Bacillariophyta were found among them in epiphyton – 53, periphyton – 92, 39 species were common to the two ecotopes. The greatest number of diatoms (39 species) was found in epiphyton of Ulva rigida C. Agardh., whose density varied (1,8 to 12)·10³ cells·cm^-2 with a maximum at temperature 23 °C in August. In periphyton the greatest number of diatoms (34 species) was recorded at 15 °C in October with an exposure of plates during the one month, and the maximum number (1 229,3·10³ cells·cm^-2) was registered at 8 °C in January. In two ecotypes were registered 58 % of marine and 34 % brackish-marine species with dominated of boreal (28 %), cosmopolites (26 %), 38 % – tropical-boreal and arctic-boreal-tropical elements. Diatoms occupation of different substrates depending on environmental factors are discussed.

M.A. Konishchuk

ALGAE OF BOGS OF PRYPIAT'-STOKHID NATIONAL NATURAL PARK (VOLYN POLІSSYA, UKRAINE)

Species composition of algae of bogs of Prypiat'-Stokhid National Natural Park numbers 151 species represented by 157 taxa of infraspecies rank. It is characterized by leading role of Streptophyta and Chlorophyta. Distribution of species diversity in different types of bogs was irregular: eutrophic bogs − 84 % of total species diversity algae of bogs, mesotrophic bogs − 35,6 % and oligotrophic bogs − 26,8 %.

V.P. Gerasimiuk, O.A. Kovtun

SPECIES DIVERSITY OF MICROPHYTOBENTHOS OF THE RED SEA

We registered 289 species of algae, belonging to 98 genera, 51 families, 32 orders, 8 classes and 4 divisions in microphytobenthos of the Red Sea near Hurgada city. One hundred species of them were new for the algae flora of the Red Sea. Many of species belong to Bacillariophyta (268 species), Cyanophyta (15), Dinophyta (5) and Chrysophyta (1) algae.

E.P. Belous, P.D. Klochenko

PHYTOPLANKTON TAXONOMICAL STRUCTURE IN MIDDLE PART OF SOUTHERN BUG RIVER (UKRAINE)

Phytoplankton of the middle part of Southern Bug River is represented by 334 algae species (358 infr. taxa) including original and literature data. The basis of taxonomical structure consists of Chlorophyta (44.4 %), Bacillariophyta (22.8 %), Euglenophyta (10.8 %) and Cyanoprokaryota (10.4 %). Main genus are Desmodesmus, Euglena, Trachelomonas, Phacus, Monoraphidium, Nitzschia, Scenedesmus, Oocystis, Merismopedia, Microcystis. The change of taxonomical structure with the compare of literature data was noted. Thirteen species of algae, rare for Ukrainian flora, were revealed.

E.L. Nevrova

STRUCTURE AND TAXONOMICAL DIVERSITY OF BENTHIC DIATOM AT ESTUARINES OF RIVERS BELBEK AND CHERNAYA (SOUTH-WEST CRIMEA, UKRAINE)

Comparative analysis in the structure and taxonomic diversity of benthic diatom (Bacillariophyta) from two estuarines of SW Crimea: River Chernaya (Inkerman is heavy polluted area of Sevastopol Bay) and River Belbek (rather unpolluted open shore) was carried out. At Belbek area 275 sp. and ssp. were found and 116 ones – at Inkerman; the total number of diatoms registered altogether is set to 303 sp. and ssp. Based on abundance calculation results and using cluster and MDS analysis, 2 groups of stations were distinguished. First group consisted of Inkerman stations (6), whereas second group of stations (10) corresponded to Belbek area. These results bear out that the certain diatom complex is formed within each of the estuarine area and characterized by well-defined taxonomic structure. Among 21 most dominant species (61 % of total abundance at Belbek and 92 % – at Inkerman), 4 species are typically freshwater forms and 1 is ubiquitous. The most common 16 species in each of the estuaries are typically marine and brackish-water forms consisted of about 47 % (in Belbek) and 79 % (in Inkerman) of total assemlage density. Based on the updated inventory of Black Sea benthic diatoms (1093 sp. and ssp.), the indices of taxonomical distinctness were calculated. These values are close to the expected mode, corresponding to structure of whole Black Sea benthic diatoms inventory (AvTD = 83.5; VarTD = 306). Phylogenetic structure of Inkerman diatom assemblage was characterized to enclose the greater share of mono- and oligo-species branches, in comparison with the larger part of poly-species branches, wide variability and unevenness structure of diatom community at Belbek.

D.V. Machalskij

THE CYANOPHYTA (CYANOPROKARYOTA) IN BITUMINOUS FLINTS OF OLIGOCENE IN UKRAINIAN CARPATHIANS

The rockforming rests of Cyanophyta in Oligocene of Ukrainian Carpathians are established. Hormogoniophyceae occupied the terrigenous and volcanigenous sediments, from Hormogoniophyceae Oscillatoriaceae formed the siliceous cyanobacterial mats. The organism’s development and type of organogenic rocks were determined by ground fluids composition.