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1

Paramecium species of the Upper and Lower Volga River basin, Russia

100%
Potekhin A., Przybos E., Rautian M.
Folia Biologica
|
2008
|
vol. 56
|
issue 3-4
203-207
EN
The Volga, which is the largest river in Europe (3690 km long), flows from the north (Tver' region) to the south (Caspian Sea), and its extensive basin (1380 km2) includes very different biotopes. Thus, analysis of the occurrence of Paramecium species along this large river basin may signifcantly enhance our understanding of species distribution according to temperature regime, food richness and other possible factors. The present paper concerns the occurrence of species of the P. aurelia complex in the sampling areas of the Upper Volga River, and a comparison with the occurrence of species of the P. aurelia complex in the Lower Volga region. In the Upper Volga basin, P. biaurelia was the most abundant among species of the complex recorded (among P. triaurelia, P. decaurelia, P. dodecaurelia), in the Lower Volga region eight species of the complex were recorded (P. primaurelia, P. biaurelia, P. triaurelia, P. pentaurelia, P. sexaurelia, P. septaurelia, P. novaurelia, P. decaurelia).
2

The time-space variability of Copepoda from the Pseudocalanidae family in Croker Passage (Antarctic Peninsula)

80%
Zmijewska M. I., Grabowska A., Bielecka L.
Oceanological Studies
|
1999
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vol. 28
|
issue 3-4
75-84
EN
Owing to their large numbers, small Calanoida from the Pseudocalanidae family constitute a significant element of zooplankton in seas and oceans. In Croker Passage, which is in the coastal zone of the Antarctic Peninsula, this family is represented by Microcalanus pygmaeus and Ctenocalanus citer. These species are characterized by a distinct seasonal variability in numbers and by the way they inhabit the water column. M. pygmaeus occurs five to six times more frequently than C. citer, and both species are far more abundant in summer than in winter. In summer they occur in the upper part of the mesopelagic zone, while in winter they move to greater depths. However, C. citer occurs more often than M. pygmaeus in the upper layers of the water column, regardless of season.
3

Paramecium dodecaurelia strains from Hawaii

80%
Przybos E., Fokin S.
Folia Biologica
|
2003
|
vol. 51
|
issue 3-4
225-226
EN
The presence of Paramecium dodecaurelia (three strains) was recorded in Hawaii.
4

First european record of Paramecium septaurelia and the discovery of new european habitats of P. pentaurelia and P. sexaurelia in Russia (Astrakhan and Volgograd Regions)

80%
Przybos E., Rautian M., Potekhin A.
Folia Biologica
|
2004
|
vol. 52
|
issue 1-2
87-90
EN
The presence of several species of the P. aurelia complex was revealed in the studied regions. In the Volgograd region P. primaurelia, P. biaurelia, P. triaurelia, and P. novaurelia were recorded. In the Astrakhan Nature Reserve P. primaurelia, P. pentaurelia, P. sexaurelia, and P. septaurelia were identified. Among these species, P. septaurelia was recorded for the first time in Europe, known before only from the territory of the USA, P. pentaurelia and P. sexaurelia are species rare in Europe. The studied regions are very rich in species of the P. aurelia complex and worthy of future studies.
5

Species of the Paramecium aurelia complex in Russia (Western region of European Russia) with molecular characteristics of Paramecium novaurelia

70%
Przybos E., Tarcz S., Rautian M., Potekhin A.
Folia Biologica
|
2006
|
vol. 54
|
issue 1-2
43-47
EN
The presence of P. primaurelia, P. biaurelia, P. triaurelia, and P. novaurelia of the P. aurelia complex was revealed in the studied region of Russia. RAPD-PCR fingerprints (band patterns) of newly identified P. novaurelia strains from Russia were compared to those characteristic for the other chosen European strains of the species. The strains revealed intraspecific polymorphism as several groups of genotypes confirming the existence of polymorphism within P. novaurelia.
6

Spatial (depth dependent) and temporal distribution of fish in sandy eulittoral of the tip of the Hel Peninsula (the Gulf of Gdansk - Baltic)

61%
Sapota M. R.
Oceanological Studies
|
2001
|
vol. 30
|
issue 3-4
77-89
EN
Presence of fish from 10 species was confirmed in shallow close to shore waters on the tip of the Hel Peninsula, in period from early spring to late autumn. Zone from shore to 5 meter depth was investigated. The highest number and biomass were noticed in summer on 3 meter depth. As general biodiversity taking into account number increases with increasing depth, whereas biodiversity taking into account biomass is not so depth dependent. Flounder is the absolute dominant at all depths in investigated region. Common goby and three spined stickleback are two other significant species. Comparison of data from all investigated depths shows that sampling in the most close to shore zone (1 meter depth) let well describe fish community of near shore shallow waters in investigated area.
7

The ground-nesting solitary bee, Dasypoda thoracica BAER, 1853 (Hymenoptera: Apoidea: Melittidae) and its life history

61%
Celary W.
|
|
issue 3-4
191-198
EN
Diagnosis and redescription of Dasypoda thoracica BAER, 1853 are given. Its seasonal and daily activity, host plants, and foraging distance are presented. Nest architecture and mature larva, male activity, and mating behaviour are described. Distribution and Polish localities are illustrated.
8

Strains of Paramecium decaurelia (Ciliophora, Protozoa) from Russia with molecular characteristics of other known strains of the species

61%
Przybos E., Greczek-Stachura M., Potekhin A., Rautian M.
|
2007
|
vol. 55
|
issue 3-4
127-132
EN
The presence of Paramecium decaurelia from the Paramecium aurelia species complex was demonstrated in Yaroslavl, Russia, (European part, northwestern Russia) and in the Altai Mts (Asiatic part of Russia, western Siberia). RAPD-PCR fingerprints of the newly identified strains of P. decaurelia, rare throughout the world, were compared to those characteristic for the other known strains of the species. P. decaurelia strains show some polymorphism within species, strains from Russia have 60% similarity of band patterns, and strains from USA and Japan about 70% similarity of band patterns.
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