Begell House Inc.
International Journal on Algae
IJA
1521-9429
16
2
2014
Taxonomic Structure of Phytoplankton in the Upper Portion of the Southern Bug River (Ukraine)
107-115
10.1615/InterJAlgae.v16.i2.10
Ye. P.
Belous
Institute of Hydrobiology National Academy of Sciences of Ukraine Kyiv, Ukraine
algal flora
phytoplankton
taxonomical structure
Southern Bug River
upper portion
In phytoplankton of the upper portion of the Southern Bug River 298 species (319 infraspecific taxa) were revealed. Of these, 205 species (217 infr. taxa) are first cited for this area. The studied portion of the river was characterized by green-diatom complexes. Chlorophyta (40%), Bacillarophyta (19%), Euglenophyta (18%), and Cyanoprokaryota (12%) are dominant groups.
Seasonal Development of Algae Indicators of Saprobity in Lower Reaches of the Zeravshan River (Republic of Uzbekistan)
116-123
10.1615/InterJAlgae.v16.i2.20
K.S.
Mamanazarova
Institute of Plant and Animal Gene Pool of the Uzbek Academy of Sciences, 32, Durmon yuli, Tashkent 100125, Republic of Uzbekistan
algae
flora
indicator of saprobity
Zeravshan River
mineralization
The results of the study of algal flora of the lower portion of the Zeravshan River are presented. Two hundred and seventy-four taxa of algae (including 191 species, 75 varieties, and 8 forms) were recorded; among them, 76 taxa (67 species and 9 varieties) are indicators of water quality. Seasonal changes and the distribution of algae in the lower reaches of the river were studied. Sanitary quality of the water was evaluated by means of algal species indicators of saprobity.
Cyanophyta (Cyanoprokaryota) in the Bituminous Flints of Oligocene in Ukrainian Carpathians
124-131
10.1615/InterJAlgae.v16.i2.30
D.V.
Machalskij
Thematic party DC NJSC "Nadra Ukrainy" "Zahidukrgeologia", 8, Mitskevicha Sq., Lvov 79000, Ukraine
Carpathians
Oligocene
Hormogoniophyceae
Oscillatoriaceae
cyanobacterial mats
ground fluids.
The rock-forming remains of Cyanophyta were revealed in Oligocene rocks of the Ukrainian Carpathians. Representatives of Hormogoniophyceae had inhabited terrigenous and volcanigenous sediments; among them, members of Oscillatoriaceae formed the siliceous cyanobacterial mats. Peculiarities of their development and type of organogenic rocks were revealed by ground fluid composition.
Algal Flora of Reservoirs of Iran
132-143
10.1615/InterJAlgae.v16.i2.40
Behrouz
Zarei Darki
Tarbiat Modares University
flora
reservoirs
taxonomic structure
leading genera
Iran
Algal flora of reservoirs in Iran representing 1129 species of algae (1339 infr. taxa) from 9 divisions of algae are revealed. They include Cyanoprokaryota − 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 infr. taxa). The data on the spectra of leading genera are presented. Algal flora of investigated reservoirs were divided into five groups: diatomic, diatomic-green, diatomic-blue-green, diatomic- streptophyte, and diatomic-blue-green-green or diatomic-green-blue-green. Comparative characteristics of received data with the same algal flora from Central Asia were carried out.
Cyanoprokaryota in Plankton of the Rivers and Lakes of Omsk Priirtyshye (Russia)
144-155
10.1615/InterJAlgae.v16.i2.50
O. P.
Bazhenova
P.A. Stolypin Omsk State Agrarian University,
Dept. Ecology, Natural Management and Biology,
2 Institute Sq., Omsk 644008, Russia
O.O.
Krenc
P.A. Stolypin Omsk State Agrarian University, Dept of Ecology and Biology, 2, Institute Sq., Omsk 644008, Russia
L.V.
Korzhova
P.A. Stolypin Omsk State Agrarian University, Dept of Ecology and Biology, 2, Institute Sq., Omsk 644008, Russia
N. N.
Barsukova
P.A. Stolypin Omsk State Agrarian University, Dept of Ecology and Biology, 2, Institute Sq., Omsk 644008, Russia
O. A.
Konovalova
P.A. Stolypin Omsk State Agrarian University, Dept of Ecology and Biology, 2, Institute Sq., Omsk 644008, Russia
Omsk
Irtysh River
Cyanoprokaryota
species richness
distribution
abundance
Data on species composition, distribution, and abundance of Cyanoprokaryota in plankton of rivers and lakes of the middle portion of the Irtysh River (Omsk Priirtyshye) are presented. A brief floristic analysis and the ecological and geographical characteristics of found species are given. In water bodies of the Omsk Priirtyshye cyanoprokaryotes have high species diversity and abundance. In the summer-autumn period water blooms caused by cyanoprocaryotes, including toxic species, were recorded in many reservoirs.
Occurrence of the Order Chordarales (Laminrophyceae, Phaeophycota) in the Coastal Waters of Karachi
156-163
10.1615/InterJAlgae.v16.i2.60
K.
Aisha
Department of Botany, University of Karachi, Karachi-75270, Pakistan
M.
Shameel
Department of Botany, University of Karachi, Karachi-75270, Pakistan
algae
Laminrophyceae
Phaeophycota
taxonomy
filiform
anatomy
reproduction
Two cylindric and filiform species of the brown algal genera Levringia Kylin and Nemacystus Derbes et Solier were collected from Arabian Sea Waters at Karachi and neighboring coastal areas of Pakistan. The taxonomic studies evaluation revealed the presence of L. boergesenii Kylin and N. decipiens (Suring.) Kuck., which were investigated in detailed for their morphology, anatomy and reproduction. The former species has been taxonomically described for the first time from the seashores of Pakistan.
Physiological and Morphological Responses of Unexplored Cyanoprokaryota Anabaena sp. FS 77 Collected from Oil Polluted Soils under a Combination of Extreme Conditions
164-180
10.1615/InterJAlgae.v16.i2.70
Shadman
Shokravi
Department of Biology, Gorgan Branch, Islamic Azad University, Gorgan, Iran
H.S.
Amirlatifi
Department of Biology, Gorgan Branch, Islamic Azad University, Gorgan, Iran
A.
Pakzad
Department of Biology, Gorgan Branch, Islamic Azad University, Gorgan, Iran
B.
Abbasi
Department of Biology, Gorgan Branch, Islamic Azad University, Gorgan, Iran
N.
Soltani
Department of Petroleum Microbiology, Research Institute of Applied Science,
ACECR, Tehran, Iran; Research Institute of Environment and Sustainable Development, DOE, Tehran, Iran
Cyanoprokaryota
dissolved inorganic carbon
irradiance
soil
pH
Common but ecophysiologically unexplored Anabaena sp. strain FS 77 (Cyanoprokaryota/ Cyanophyta), isolated from oil polluted soils of southern Iran (Khuzestan province), has been characterized by a combination of extremely low irradiance (2 µE·m−2·s−1), different pHs (5, 7, 9, 10), and inorganic carbon availability (extremely limited and relatively available). Maximum growth rates were observed at pH 9 when dissolved inorganic carbon was extremely limited. This strain has a relatively powerful carbon dioxide concentrating system which may be induced by alkaline conditions. Phycobilisomes seem more sensitive to pH than carbon dioxide concentration. The size of phycobilisomes increased, but the photosystem II to photosystem I ratio decreased significantly under neutral conditions. Extremely alkaline conditions (pH 10) caused no significant fluctuation in photosynthesis efficiency. The maximum nitrogenase activity was seen in cells grown at a pH of 9 and 10 under carbon dioxide limitation. The pattern of nitrogenase activity was more or less the same under photosynthesis. Sugar and protein content decreased at pH 10 compared to pH 9. Carotenoid content was not affected by pH and carbon dioxide fluctuations. Cylindrical heterocysts were the main form found but may be transformed to sub-cylindrical and oval-cylindrical at pH and carbon dioxide fluctuations. Collectively, results indicate that Anabaena sp. FS77 shows the ability to acclimate growth, excretion behavior, photosynthetic apparatus, and nitrogen fixation machinery operation at combined variations of pH and carbon dioxide under extremely limited irradiance in the range usually found in oil polluted soils of southern Iran.
Biosorption of Ni (II) from Aqueous Solutions by Marine Algae Cladophora glomerata (L.) Kutz. (Chlorophyta)
181-192
10.1615/InterJAlgae.v16.i2.80
Z.
Senobari
Department of Biology, Faculty of Basic Sciences, University of Mazandaran, Babolsar, Iran
N.
Jafari
Department of Biology, Mazandaran University, Babolsar, Iran
Mohammad Ali
Ebrahimzadeh
Pharmaceutical Science Research Center, School of Pharmacy,
Mazandaran University of Medical Sciences, Sari, Iran
Cladophora glomerata
Ni (II)
biosorption
isotherm
kinetics
Biosorption is a technique that can be used for the removal of pollutants from waters, especially those that are not easily biodegradable, such as metals. A variety of biomaterials are known to bind these pollutants including bacteria, fungi, algae, and industrial and agricultural wastes. Raw seaweed Cladophora glomerata, prepared from an industrial algal waste, was converted into inexpensive biosorbents, which were used for removal of Ni2+ from aqueous solutions. Batch mode experiments were performed to determine the adsorption equilibrium and kinetic behavior of Ni2+ in aqueous solution allowing the computation of kinetic parameters and maximum metal adsorption capacity. The Langmuir model fitted the equilibrium data better than the Freundlich isotherm. The monolayer biosorption capacity of C. glomerata biomass for Ni2+ ions was found to be 22.48 mg/g. Experimental data were also tested in terms of biosorption kinetics using pseudo-first-order and pseudo-second-order kinetic models. The results showed that the biosorption processes of Ni2+ ions followed pseudo-second-order kinetics model.
Fossil Holocene Diatoms of the Karkinit Bay, the Black Sea, Ukraine
193-206
10.1615/InterJAlgae.v16.i2.90
Olexandra P.
Olshtynska
Institute of Geological Sciences, National Academy of Sciences of Ukraine,
55-B Olesya Gonchara Str., Kiev 01601, Ukraine
Yu.A.
Tymchenko
Kiev Taras Shevchenko National University, 90, Vasilkovskaja St., Kiev 03022, Ukraine
diatoms
the Black Sea
bottom sediments
the Holocene
The fossil Holocene diatoms in the coastal deposits of Karkinit Bay of the Black Sea were first investigated. New data on species diversity, taxonomic composition and ecological structure of diatoms and their vertical distribution during Holocene were revealed. The palaeoenvironments in two coastal lagoons have been reconstructed.