Long-term distribution of the crustacean Calanoida (Copepoda) in the dumping area in the South East Baltic
... southeastern part of the Baltic Sea. A hydrobiological study was carried out in spring and summer of 1998—2009 in the framework of national monitoring. The species composition of the Calanoida group was identified as well as the variations in their abundance and biomass. A seasonal (spring – summer) increase in the abundance and biomass of zooplankton and Calanoida was observed. The seasonal increase took place against the background of a steady decrease in the abundance abundance and biomass ...
Seasonal Larva Number Dynamics and Settlement of Juvenile Zebra Mussel (Dreissena polymorpha Pallas) in the Prybrezhny Quarry (the Kaliningrad region)
... larva length composition and juvenile recruitment in perennial natural colonies in the Prybrezhny Querry (the Kaliningrad region). In 2002, zebra mussel larvae were found in plankton from the second part of July till the end of August. The peaks of abundance were registered in the middle of July and in the beginning of August. The larvae accounted for 33% of the total zooplankton abundance. The size of larvae varied from 100 to 375 μm. The beginning of the juvenile settlement was observed in July....
Long-term dynamics of structure and abundance of bream population in the Vistula lagoon
This paper analyses the long-term dynamics of structure and abundance of bream (Abramis brama L.) population in the Vistula lagoon on the basis of 1959—2010 trawl surveys. The authors emphasise the positive long-term impact of fishing regulation. The current bream stock is estimated as sufficient.
On the role of Arctic cod in the nutrition of abundant bird species of the Barents Sea
This article analyses the role of Arctic cod—the most abundant representative of Arctic fish fauna in the food web of the Barents Sea ecosystems. The author estimates the degree of its consumption by the most abundant seabirds-ichthyophagist (northern fulmar, Brünnich's guillemot, black-legged kittiwake) ...
A comparison of the condition of the sand hopper Talitrus saltator Montagu, 1808 groups depending on the ecology of the Vistula and Curonian Spits’ coast
... 1808 groups on the coast of the Vistula and the Curonian Spits in April — October 2011 showed significant differences in the seasonal dynamics of key parameters characterizing these groups. On the Curonian Spit, an increase in the average and total abundance and biomass of Talitridae is ensures through a normal life cycle. On the Vistula Spit, the preservation of a relatively stable average and total abundance and biomass is explained by an increase in the number of juveniles that replace older ...
Character-istics of communities chironomids lakes of the city of Kaliningrad
This article investigates the state of chironomid communities in Lake Penkovoe, Pond Isakovsky, Pond Shkolny, and the Karasevka pond system in Kaliningrad in spring 2011. The authors provide new data on the species composition, abundance, and biomass of chironomidae. The Shannon, Simpson, Balushkin, and Margalef indices were calculated for the chironomid communities. The authors identified the dominant species in the communities of chironomids and evaluated the quality of water ...
Hemozoin accumulation associated with Opisthorchis felineus infection and the analysis of its role in changing the bile ducts microbiota
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On the benthic foraminifera species of Alabaminella weddellensis and Epistominella exigua in paleo-oceanologic reconstructions
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The steroid regulation of immune memory
... disease), aim to strengthen and, in other cases (autoimmune diseases and allergy), to suppress (weaken) the immune processes. The factors affecting the formation of immunological memory are numerous and varied. The steroid hormones are considered the most abundant group of biologically active agents. The influence of these agents on proliferation, differentiation and apoptosis of immune system cells is being intensively studied. This review analyses the data on the role of steroid hormones in the immune ...
The formation and current state of the urban population of Columba palumbus L. woodpigeon in Kaliningrad
... population in the city of Kaliningrad and assesses its current condition. The author focuses on certain factors affecting the formation of urban populations.
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The urban population of the Woodpigeon
Europe — its origin, increase and distribution // acta zoologica ...
New data on the chironomid (Diptera: Chironomidae) fauna in the water bodies of the Kaliningrad region
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Pond Shkolny, abundance, biomass, species diversity.
The impact of environmental factors on the distribution of Macoma balthica (Linnaeus 1758) and Mytilus edulis (Linnaeus 1758) in the southeastern part of the Baltic Sea
This article offers the results of research on the influence of environmental factors on the distribution of two abundant bivalve species – Macoma balthica and Mytilus eduli – in the south-east of the Baltic Sea. First of all, the distribution of species was determined by the types of soils. The distribution of molluscs in deep-water sectors was limited by oxygen ...
Visualization of the esthetics of memories in the novels of W. G. Sebald «The Rings of Saturn» and «Austerlitz»
... photography in W. G. Sebald's works exemplified by his novels “The Rings of Saturn” and “Austerlitz”. The relevance of the study of the intermediary component, the photographic one, in the novels of the German writer is confirmed by the abundance of works on this problem written by Western literary critics. Early novels of W. G. Sebald have been studied in more detail. Photography performs an illustrative function in them. In “The Ring of Saturn” and “Austerlitz” the significance ...
The abundance and territorial distribution of the Eurasian Coot (Fulica atra) and Common Moorhen (Gallinula chloropus) in Kaliningrad
This article studies the Coot and Moorhen breeding in urban conditions. Seven years’ (1999—2003, 2006 -2007) field studies resulted in the compilation of an atlas of the Kaliningrad region’s nesting birds. The city territory was divided into 206 plots of an area of 1 km2. The urbanisation rate was estimated on a scale of 1 to 5. Kaliningrad is home to 208 breeding pairs of coots and 56 of moorhens. The Coot is more widespread (present in 25.2 % of the plots) than the Moorhen (13.6 %). The population...
The comparative characteristics of Blackbird nest materials from natural and anthropogenic landscapes of the Kaliningrad region
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Climate Change Impact on the Curonain Lagoon Eutrophication Level
... main factors affecting the level of biological production and the trophic status are determined by the comparison of hydrological and chemical indicators. Water temperature is a key environmental factor that regulates the phytoplankton production and abundance in the Curonian Lagoon. The greater seasonal rise in water temperatures in 1990-2000, presumably, a consequence of the climate change, alongside with other factors (freshness, slow water flow) creates conditions for cyanobacterial «hyperblooms»....
Euroregions as a factor of successful international integration in modern conditions
... states that are actively involved in cross-border cooperation projects. The formation of European regions is closely related to the industrial development of their regions. The Post-Soviet space requires a redistribution of the overcentralized power. The abundance of Euroregions along the perimeter of certain states may be an indicator of economy's resilience to potential shocks. The provisions set forth in the article contribute to an improvement of the scientific understanding of political regionalistics ...
Construction works impact on the vegetation in the сoastal zone of the Pregolya river in Kaliningrad
... changed. Some species have fell out of communities or reduced their projective coverage; some communities in the city center have disappeared. Inherent to the β-mesosaprobic and eutrophic waters, Lemna minor, Cladophora glomerata have increased their abundance in communities, acting as dominants and codominants. The most significant changes in the river vegetation have been identified for two districts. Since 2013, associations with the dominance of Phragmites australis, Scirpus lacustris, Sagittaria ...
Ontogenetic Dynamics of Hydrocortisone Quantitative Content of the Common Octopus Octopus vulgaris, Lamark (Cephalopoda: Octopodidae)
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The comparative aspects of breeding bird fauna in Kaliningrad and other European cities
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Urbanisation of the Song Thrush (Turdus philomelos С. L. Brehm) in Kaliningrad: History of the process and causes of its failure
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The Baltic economic model: some results of the 1990—2015 transformations
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