scholarly journals Checklist and Distribution of Calanoida (Crustacea: Copepoda) in Kazakhstan (Central Asia)

Water ◽  
2021 ◽  
Vol 13 (15) ◽  
pp. 2015
Author(s):  
Elena Krupa ◽  
Moldir Aubakirova
Keyword(s):  
Caspian Sea ◽  
Climatic Factors ◽  
Water Bodies ◽  
The Black Sea ◽  
The Caspian Sea ◽  
Small Water ◽  
Limnocalanus Macrurus ◽  
Acanthodiaptomus Denticornis ◽  
Inland Water Bodies ◽  
Far Eastern

This work aims to analyze the zoogeographic distribution of Calanoida in Kazakhstan. Kazakhstan belongs to the Palaearctic region, and its territory is ascribed to the European–Siberian and Nagorno–Asian biogeographical subregions. The European–Siberian subregion includes the Volga–Ural, Irtysh, and Turkestan–Aral provinces. The Balkhash province belongs to the Nagorno–Asian subregion. Studies of the Calanoida fauna were carried out between 1997 and 2019. For this purpose, 7250 zooplankton samples were taken in 130 different water bodies. Findings of 26 species of Calanoida have been documented. The richest in species composition (20) is the Calanoida fauna of the Irtysh province. Ten Calanoida species have been recorded in the Volga–Ural province, 8 in the Turkestan–Aral province, 7 in the Balkhash province, and 5 in the Ponto–Caspian region. The distribution of the species richness of the order is determined by a complex of climatic factors, including the density of the hydrographic network, a variety of hydrochemical conditions, and accidental acclimatization of species. Far Eastern species (Sinodiaptomus sarsi, Neutrodiaptomus incongruens, Neodiaptomus schmackeri) entered the inland water bodies of Kazakhstan, most likely through the introduction of non-native fish species. The Black Sea species Acartia tonsa and Calanipeda aquaedulcis were introduced into the Caspian Sea with ballast waters. Three autochthonous species (Limnocalanus macrurus, Eurytemora grimmi, Eurytemora minor), formerly inhabiting the Caspian Sea, can now be considered extinct. Acanthodiaptomus denticornis, Arctodiaptomus (R.) salinus, Phyllodiaptomus blanci, and Eudiaptomus graciloides are widespread in the region. Endemic species (Gigantodiaptomus irtyshensis, Arctodiaptomus naurzumensis) and species are new for Kazakhstan (Diaptomus (Chaetodiaptomus) mirus, Eudiaptomus transylvanicus, Arctodiaptomus dentifer, A. (Rh.) ulomskyi were found in small waterbodies; they are known only from single occurrence sites as well as Eurytemora caspica. The last one was described from the northern part of the Caspian Sea, in the coastal zone. Further research into small water bodies that are poorly studied may expand our knowledge of the diversity of Calanoida in Kazakhstan. Calanoida fauna of Kazakhstan was closest to the fauna of countries with a continental climate and most strongly differed from countries with subtropical and Mediterranean types of climates.

Two species of the genus Theristus Bastian, 1865 (Nematoda: Xyalidae) from the hypersaline water bodies of the Crimea (Azov-Black Sea basin)

Zootaxa ◽  
2020 ◽  
Vol 4881 (2) ◽  
pp. 372-382
Author(s):  
TATIANA N. REVKOVA
Keyword(s):  
Black Sea ◽  
Reproductive System ◽  
Caspian Sea ◽  
Water Bodies ◽  
The Caspian Sea ◽  
Crimean Peninsula ◽  
The Crimea ◽  
Hypersaline Water ◽  
The Crimean Peninsula

Morphological descriptions of two species of the genus Theristus Bastian, 1865 belonging to group flevensis, found in the hypersaline water bodies of the Crimean Peninsula, are presented. Theristus siwaschensis sp. n. is morphologically closest to T. flevensis Schuurmans Stekhoven, 1935, T. parambronensis Timm, 1952, T. macroflevensis Gerlach, 1954, T. metaflevensis Gerlach, 1955, but differs from them by the structure of the reproductive system in females, number of cephalic setae and size of spicules. Specimens of T. flevensis found in the Lake Chersonesskoye are similar to the re-description of a large forms of T. flevensis from Chile by Murhy (1966) and Caspian Sea by Chesunov (1981). However, it differs from the Caspian Sea species by having larger amphids, longer cephalic setae and spicules. T. pratti Murph & Canaris, 1964 and T. ambronensis Schulz, 1937 are synonymized with T. flevensis.

scholarly journals Radiocarbon Chronology of Paleogeographic Events of the Late Pleistocene and Holocene in Russia

Radiocarbon ◽  
1993 ◽  
Vol 35 (3) ◽  
pp. 399-407 ◽  
Author(s):  
P. A. Kaplin ◽  
A. A. Svitoch ◽  
O. B. Parunin
Keyword(s):  
Late Pleistocene ◽  
Black Sea ◽  
Caspian Sea ◽  
The Black Sea ◽  
Eastern Region ◽  
Western Kamchatka ◽  
Radiocarbon Chronology ◽  
Far Eastern

14C chronology of Late Pleistocene paleogeographical events in the Black Sea–Caspian Sea region shows that the following transgressions partly correlate with each other: Karangat and Khazarian; Neo-Euxinian and Khvalyn; Holocene and Neo-Caspian. The main climatic events were synchronous in intercontinental Siberia. In the far eastern region, the Middle-Wisconsinan transgression is reflected by Chukotka and western Kamchatka terraces and by submerged ancient shorelines in Primorye.

The problem of invaders in the Caspian Sea in the context of the findings of new zoo- and phytoplankton species from the Black Sea

2005 ◽  
Vol 32 (1) ◽  
pp. 65-74 ◽  
Author(s):  
T. A. Shiganova ◽  
E. I. Musaeva ◽  
L. A. Pautova ◽  
Yu. V. Bulgakova
Keyword(s):  
Black Sea ◽  
Caspian Sea ◽  
The Black Sea ◽  
Phytoplankton Species ◽  
The Caspian Sea

scholarly journals The black sea: the energetic corridor between Europe and Asia

2016 ◽  
Vol 18 (35) ◽  
pp. 6-15
Author(s):  
Roberto Luis Brocate Pirón ◽  
Jerónimo Rios Sierra
Keyword(s):  
Black Sea ◽  
Caspian Sea ◽  
Oil And Gas ◽  
The Black Sea ◽  
Direct Impact ◽  
Strategic Interactions ◽  
The Caspian Sea ◽  
European Context ◽  
Vladimir Putin ◽  
Bosphorus Strait

The Black Sea is one of the most important geostrategic enclaves in the oil and gas connection linking Asia with Europe and Russia. However, the presence of Turkey on the Bosphorus Strait directly affects how the geo-strategic interactions of the region develop. The crisis in Ukraine has spurred Turkish-Russian relations, positioning the country as a key player in the gas transit to Eurasia and projecting the aspirations of the Kremlin, under President Vladimir Putin has sought to regain an influential weight in the region - as shown by the crisis in Georgia or, more recently, Crimea - especially in the Black Sea and the Caspian Sea. Thus, the following work seeks to put a little light on new relationships and geopolitical aspirations, especially in Russia and Turkey and, likewise, have a direct impact on the European context.

scholarly journals Fluctuation in the Level of the Caspian Sea and its Consequences

2021 ◽  
Vol 288 ◽  
pp. 01064
Author(s):  
Akimgali Kenzhegaliev ◽  
Assylbek Kanbetov ◽  
Dauren Kulbatyrov ◽  
Aiauzhan Shakhmanova ◽  
Ainagul Abilgaziyeva
Keyword(s):  
Sea Level ◽  
Caspian Sea ◽  
Climatic Factors ◽  
Anthropogenic Factors ◽  
Present Stage ◽  
The Caspian Sea ◽  
Industrial Facilities ◽  
Sea Levels ◽  
Early Neogene ◽  
Rising Sea Levels

While in the early neogene, tectonic and to a lesser extent climatic factors impacted on the sea level, at the present stage climatic, man-made and anthropogenic factors are at the forefront. As a result of an increase in the level of the Caspian Sea by more than 2.4 m, 35-40 thousand square meters km of territory was flooded, during the flooding and flooding of the coastal territory for the period 1978-1995 led to a change in natural, socio-economic and medico-ecological conditions. The consequences of rising sea levels led to the resettlement of about 100 thousand people living in the coastal flooded zone of the Northern Caspian Sea and many industrial facilities.

scholarly journals The current state of fishing and extracting the living aquatic resources in the Black Sea region of Ukraine

2019 ◽  
Vol 2 (3) ◽  
pp. 23-27
Author(s):  
M. I. Burgaz ◽  
T. I. Matviienko ◽  
O. M. Soborova ◽  
K. I. Bezyk ◽  
O. Y. Kudelina
Keyword(s):  
Black Sea ◽  
Fish Farming ◽  
The State ◽  
Water Bodies ◽  
The Black Sea ◽  
Aquatic Resources ◽  
Black Sea Region ◽  
Fish Stocks ◽  
Current State ◽  
Inland Water Bodies

The development of open spaces and resources of the Black Sea is one of the main directions of the Black Sea region (the Odessa, Mykolaiv and Kherson regions). The essence of the region policy allows to cooperate with the most countries of the world community and brings an income both to the budget of the regions and to the state budget. Industrial fisheries is an extractive branch of the fishing industry that uses the natural resources of the oceans, seas, lakes, rivers, reservoirs: various species of fish, marine mammals, shellfish, crustaceans and aquatic vegetation. Fisheries can be considered as one type of nature using which consists in the extraction of fish and other sea products (fish, invertebrates, algae, etc.). The purpose of the work was to find out a current state of fishing and extracting the living aquatic resources in the Black Sea region, namely in the Odessa, Mykolaiv and Kherson regions. An assessment of a current state of extracting the aquatic bioresources in general and in the inland water bodies in the Black Sea region, namely in the Odessa, Mykolaiv and Kherson regions for the period from 2010 to 2018, was carried out on the basis of specialized literature. The state of extracting the aquatic bioresources in general and in the inland water bodies from 2010 to 2018; the amount of caught fish in this region; the state of fisheries of the studied region were investigated. Fish farming is a branch of the national economy that is engaged in farming, increasing and improving a quality of the fish stocks in the water bodies and filling the fish resources. In order to maintain and increase the stocks of valuable industrial fish in our country the extensive measures for artificial fish farming, improving the conditions of natural reproduction of fish, as well as the development of lake and pond fisheries for the commercial fish production are being taken. Much work is being done to acclimatize valuable industrial fish species and other fishing objects, aimed at expanding a fish species composition and increasing the fish stocks. It was found that according to the statistics of the State Statistics Committee of Ukraine, the analysis of the exraction of fish and aquatic biological resources in the Black Sea region (Odesa, Mykolaiv and Kherson regions) showed that an increase in the volume of fish catching and extracting the living aquatic resources occurred only due to inland waters.

scholarly journals ANALYSIS OF PRODUCTIVITY OF SPONGE (SPONGILLIDAE) GROWING IN WATER BODIES OF THE VOLGA RIVER DURING REGRESSION OF THE CASPIAN SEA

2019 ◽  
pp. 57-65
Author(s):  
Nikolay Aleksandrovich Franov ◽  
Alexander Nickolaevich Nevalennyy ◽  
Arkadii Fedorovich Sokolsky
Keyword(s):  
Caspian Sea ◽  
Water Bodies ◽  
Raw Material ◽  
Small Rivers ◽  
The Caspian Sea ◽  
Volga River ◽  
Livestock Breeding ◽  
Central Russia ◽  
Microscopic Studies ◽  
Effective Development

The article describes the habitat, systematics and species of freshwater sponge ( Badiaga spongia fluviatilis ) inhabiting water bodies of Russia. There have been characterized the hydrological features of water bodies - sponges’ habitats, and their ecological function has been characterized. In freshwater bodies of the central Russia there occur two most common and numerous types of sponges - lake badiaga ( Spongilla lacustris ) and river badiaga ( Ephydatia fluviatilis ) presenting a valuable raw material for the pharmaceutical and cosmetic industry. The attention is focused on the fact that sponge colonies can reach the commercial volumes only in the floodplain waters and the delta of the Volga River. Retrospective data on volumes of sponge fishery in the Astrakhan region suggest the reason for decreasing sponge productivity and volume of the sponge industry: a lack of reclamation works in small rivers in the Volga delta. There has been given a comparative analysis of the data on microscopic studies of sponge structure caught on experimental zones in the water bodies of the Astrakhan region and the information found in the scientific literature. Characteristics of soils where significant sponge plantations were found are analyzed. It has been stated that in the watercourses of the Astrakhan region there prevail species of lake sponge ( Spongilla lacustris ), whose biomass should increase tenfold taking into account the cyclicity of the regression processes of the Caspian Sea, carrying out complex ameliorative works on the waterways of the Volga and development of agriculture and livestock breeding. It has been recommended to prepare a scientific and production base for the rational and effective development of the potential of this natural resource for pharmaceutical and cosmetic purposes.

scholarly journals Ossidiana e selce nel Caucaso Meridionale

2019 ◽  
Author(s):  
Flavia Amato
Keyword(s):  
Present Article ◽  
Black Sea ◽  
Caspian Sea ◽  
The Black Sea ◽  
The Caspian Sea ◽  
Lithic Assemblage ◽  
Sharp Edges ◽  
Southern Caucasus ◽  
Metal Age ◽  
Important Site

Lithic production in the Southern Caucasus continues to flourish even after the diffusion of metals in the 4th-3rd millennia BC. Flint elements and especially those in obsidian, were in fact of considerable importance in the life of metal age communities and are well attested both in living and in funerary contexts. Considered by some scholars as an attribute of celestial deities, obsidian is present in numerous deposits between the Lesser and the Greater Caucasus, from the Black Sea to the Caspian Sea. It was widely exploited for its naturally sharp edges and ease of processing. Flint, of local origin, is used to made agricultural tools, generally found in the inhabited areas, and arrowheads and spearheads, most commonly preserved in funerary contexts. The present article analyses the main features of the lithic assemblage from Aradetis Orgora, the most important site in the Shida Kartli region of Georgia, and from its Kura-Araxes cemetery.

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