scholarly journals Ihtiofauna lacurilor de acumulare Dubăsari și Costești Stânca în anul 2020

2021 ◽  
Author(s):  
Denis Bulat ◽  
◽  
Dumitru Bulat ◽  
Marin Usatii ◽  
Oleg Crepis ◽  
...  
Keyword(s):  
Fish Species ◽  
Climate Changes ◽  
Ecological Status ◽  
Northern Pike ◽  
Anthropogenic Pressure ◽  
Small Species ◽  
Profound Change ◽  
Republic Of Moldova ◽  
The Republic ◽  
Prut River

The present work presents the results of the research of the ichthyofauna of the largest accumulation lakes in the Republic of Moldova (Dubăsari on the Dniester River and CosteștiStânca on the Prut River) under the conditions of climate changes and intensification of anthropogenic pressure. The state of profound change in the ichthyocenosis of the Dubasari reservoir is demonstrated, which is currently dominated by small species (gobius species, bleak, bitterling, blackstriped pipefish), and indicates the urgent need to carry out ameliorating measures of populating the ecosystems with economically valuable species of fish, among which a significant share shall be placed on ichthyophagous species of fish, such as pikeperch, northern pike, catfish, asp. The higher share of oxyphilic and reophilous fish species in the fish catches from the Costești-Stânca accumulation lake reveals a more favourable ecological status of this ecosystem compared to the Dubasari accumulation.

Impactul activităților umane asupra stării peisajelor geografice din bazinul hidografic Cogâlnic în anii 2004-2014

2020 ◽  
Author(s):  
Nicolae Boboc ◽  
◽  
Valentina Munteanu ◽  
Keyword(s):  
Statistical Data ◽  
Environmental Changes ◽  
Spatial Dynamics ◽  
Anthropogenic Pressure ◽  
Human Pressure ◽  
Republic Of Moldova ◽  
Temporal And Spatial ◽  
The Republic ◽  
High Degree

The high degree of land use in the Republic of Moldova as a whole, and the Cogâlnic river basin in particular, imposes the need to assess the quality of the environment and the characteristics of the anthropogenic pressure on the landscapes in temporal and spatial dynamics and to identifying an adequate of measure system for the purpose to maintain/restore the optimal structure and functioning of landscape systems. Based from the Land Cadastre on data, statistical data of population censuses, bibliographic and cartographic sources, a system, was appraised a system of indicators(of naturalness, of artificialization of landscapes, environmental changes) and quantified human pressure on the environment through agriculture and anthropogenic pressure on forest landscapes from the Cogâlnic catchment area. The values of the indices and the human pressure on the landscapes were processed using GIS techniques and elaborated cartographic models.

scholarly journals Dezvoltarea unui complex mobil pentru reproducerea ecologo- industrial a speciilor pelagofile de pești în condiții de fluvii și lacuri

2021 ◽  
Author(s):  
Oleg Crepis ◽  
◽  
Dumitru Bulat ◽  
Elena Zubcov ◽  
Marin Usatii ◽  
...  
Keyword(s):  
Fish Species ◽  
Environmental Conditions ◽  
Aquatic Ecosystems ◽  
Anthropogenic Impact ◽  
Fish Stock ◽  
Basic Principles ◽  
Republic Of Moldova ◽  
Natural Reproduction ◽  
Productivity Management ◽  
The Republic

The populations of most fish species in the Republic of Moldova reproduce naturally, however, as a result of the increasing anthropogenic impact on aquatic ecosystems, the conditions for their natural reproduction have deteriorated significantly. In this context, one of the research objectives for 2020 was the development of efficient technological principles for conservation and rational use of local fish stock. It was revealed the ensuring of the development of the most vulnerable stages in the ontogenesis of fish in controlled environmental conditions is one of the basic principles of productivity management of Danube mackerel populations. In order to put into practice the principles of managing the productivity of breeding stocks, a mobile installation has been developed for the reproduction of pelagophilous fish species.

scholarly journals Vlad Mischevca, Râul Prut: de la geografie la istorie / The River Prut: From Geography to History

2015 ◽  
Vol 3 (2) ◽  
pp. 34-60
Keyword(s):  
Morphological Characteristic ◽  
Historical Geography ◽  
Historical Overview ◽  
Eastern Slope ◽  
Republic Of Moldova ◽  
Hydrographic Basin ◽  
The Republic ◽  
Characteristic Features ◽  
Prut River

The article discusses the historical geography of the river Prut (967 km). In the ancient period it was known as the Pyretus, Porata, or Prout. The river originates on the eastern slope of Mount Hoverla (2 068 m), in the Carpathian Mountains in Ukraine. The Prut flows to the southeast, eventually joining the Danube near Giurgiuleşti, east of Galați. The Prut currently divides three countries: Romania, the Republic of Moldova and Ukraine. At present, it constitutes the border between Romania and Moldova, with a total length of 695 km. It has a hydrographic basin totaling 27 540 km2 , of which 10 990 km2 are in Romania and 7 980 km2 in Moldova. The article presents a summary description of the geographical setting and hydrographic specificity of the Prut River. The main geo-morphological characteristic features of the Prut basin are presented. The author also offers a historical overview of the main settlements situated on the river, as well as a brief analysis of the recent projects for international cooperation centered on the Prut as an important waterway of the region. Finally, the author emphasizes the role of the Prut as a border river, looking at both the pragmatic and symbolic dimensions of its significance for Romanian history.

scholarly journals The seasonal dynamics of phytoplankton and water quality in the Prut River lower sector

2021 ◽  
Author(s):  
Laurenţia Ungureanu ◽  
◽  
Daria Tumanova ◽  
Grigore Ungureanu ◽  
◽  
...  
Keyword(s):  
Water Quality ◽  
Seasonal Dynamics ◽  
Phytoplankton Composition ◽  
Republic Of Moldova ◽  
Qualitative And Quantitative ◽  
The Republic ◽  
Quantitative Indicators ◽  
Prut River

The article presents the results on qualitative and quantitative indicators of phytoplankton of the Prut River lower sector within the Republic of Moldova in 2018-2020. In phytoplankton compositions 72 species were identified. Seasonal and long-term patterns of phytoplankton development have been established in Prut River lower sector. The numbers of phytoplankton changed within the limits 1,06 to 20,32 mln. cell/l, with biomass 1,23-21,64 g/m3. The values of saprobic indexes, estimated on the basis of species-indicators (52 species) from phytoplankton composition, which are in proportion of 58% typically β-mezosaprobic, confirm the following: the water quality of lower Prut River sector in the period 2018-2020 was satisfactory for the development of phytoplankton and was attributed mainly to II-III (good-moderately polluted) quality classes.

scholarly journals Exceptional floods in the Prut basin, Romania, in the context of heavy rains in the summer of 2010

2016 ◽  
Author(s):  
Gheorghe Romanescu ◽  
Cristian Constantin Stoleriu
Keyword(s):  
Czech Republic ◽  
Eastern Europe ◽  
Central And Eastern Europe ◽  
The Czech Republic ◽  
Republic Of Moldova ◽  
Atmospheric Instability ◽  
The Republic ◽  
Gauging Station ◽  
Prut River ◽  
Heavy Rains

Abstract. The year 2010 was characterized by devastating flooding in Central and Eastern Europe, including Romania, the Czech Republic, Slovakia, and Bosnia-Herzegovina. This study focuses on floods that occurred during the summer of 2010 in the Prut River basin, which has a high percentage of hydrotechnical infrastructure. Strong floods occurred in eastern Romania on the Prut River, which borders the Republic of Moldova and Ukraine, and the Siret River. Atmospheric instability from 21 June–1 July 2010 caused significant amounts of rain, with rates of 51.2 mm/50 min and 42.0 mm/30 min. In the middle Prut basin, there are numerous ponds that help mitigate floods as well as provide water for animals, irrigation, and so forth. The peak discharge of the Prut River during the summer of 2010 was 2,310 m3/s at the Radauti Prut gauging station. High discharges were also recorded on downstream tributaries, including the Baseu, Jijia, Miletin etc. High discharges downstream occurred because of water from the middle basin and the backwater from the Danube (a historic discharge of 16,300 m3/s). The floods that occurred in the Prut basin in the summer of 2010 could not be controlled completely because the discharges far exceeded foreseen values.

scholarly journals Cryptic survival and an unexpected recovery of the long-tailed mayfly Palingenia longicauda (Olivier, 1791) (Ephemeroptera: Palingeniidae) in Southeastern Europe.

2021 ◽  
Author(s):  
Avar Lehel Dénes ◽  
Romina Vaida ◽  
Emerencia Szabó ◽  
Alexander V Martynov ◽  
Éva Váncsa ◽  
...  
Keyword(s):  
Danube River ◽  
Danube Delta ◽  
Southeastern Europe ◽  
Phylogeographic Pattern ◽  
Mitochondrial Coi ◽  
Republic Of Moldova ◽  
The Republic ◽  
Floods Directive ◽  
Prut River ◽  
The Eu

Once widespread in the large European rivers, Palingenia longicauda underwent a drastic range contraction as a result of the intense pollution and hydromorphological interventions of the 19th and 20th centuries. For the last decades it was considered to be restricted only to the Tisa River and its tributaries, and to the Rba&aacute River, but new reports indicated its presence in the Danube River in Hungary, in the Danube Delta in Romania and Ukraine, and in the Prut River in the Republic of Moldova. The objective of this study is to analyze the phylogeographic pattern between the two main eco-regions (Pannon and Pontic) of the species distribution, based on the combined mitochondrial COI (472 bp) and 16S (464 bp) sequences generated for individuals collected in Romania and Ukraine, and from publicly available ones, representing the Tisa catchment populations. The presence of viable populations in the Danube Delta and on the Prut River in Romania is confirmed, and additional presence on the Mureș and Bega rivers from Romania, and on the Styr and Horyn rivers in Northern Ukraine is shown. The phylogeographic results indicate that the presence of the analyzed populations are not the result of recent founding events from the Pannon region, confirming the survival and expansion of cryptic local lineages. The recent recovery of the species may be related to the improvement of water quality as a result of the implementation of the EU Water Framework Directive and the EU Floods Directive after 2000.

scholarly journals The Orthoptera (Insecta) from Middle and Lower Prut River Basin

2013 ◽  
Vol 56 (2) ◽  
pp. 157-171
Author(s):  
Ionuţ Ştefan Iorgu ◽  
Elena Iulia Iorgu ◽  
Nadejda Stahi
Keyword(s):  
River Basin ◽  
Republic Of Moldova ◽  
Ecological Preferences ◽  
Eastern Side ◽  
The Republic ◽  
Western Side ◽  
First Time ◽  
Bush Crickets ◽  
Prut River

Abstract The ecological preferences and bioacoustics of bush-crickets, crickets and grasshoppers species were studied in middle and lower Prut River basin, a research conducted in 55 localities from Romania and 33 localities in the Republic of Moldova. A total number of 91 species of Orthoptera were collected in the study area: 85 species encountered on the western side of Prut River basin (9 Phaneropteridae, 24 Tettigoniidae, 1 Bradyporidae, 5 Gryllidae, 1 Gryllotalpidae, 1 Tridactylidae, 5 Tetrigidae, 39 Acrididae) and 76 species found on the eastern side (7 Phaneropteridae, 19 Tettigoniidae, 1 Bradyporidae, 5 Gryllidae, 1 Gryllotalpidae, 1 Tridactylidae, 3 Tetrigidae, 39 Acrididae). Four species are recorded for the first time in the Orthoptera fauna of the Republic of Moldova: Barbitistes constrictus (Fabricius), Poecilimon fussii Brunner von Wattenwyl, Metrioptera roeselii fedtschenkoi (Saussure) and Pholidoptera frivaldskyi (Herman).

scholarly journals The inventory of the ornitofauna of Sarata Noua lake, Leova county, Republic of Moldova from 2016 – 2021

2021 ◽  
Author(s):  
Vitalie Ajder ◽  
◽  
Silvia Ursul ◽  
Keyword(s):  
Short Distance ◽  
Bird Species ◽  
Migration Route ◽  
Republic Of Moldova ◽  
Artificial Habitats ◽  
The Republic ◽  
Total Species ◽  
Prut River ◽  
Long Term Studies

The Republic of Moldova is a small European country where long-term studies have been more of an exception than a rule. Being an agrarian country, the mosaic of natural and artificial habitats is found on a smaller scale, namely in the Sărata river meadow, and in Sărata Nouă lake and surrounding. The Sărata River is a right tributary of the Prut River in the Republic of Moldova, having a quiet plain character, with a mosaic of natural and artificial habitats which are traditionally managed. The area overlaps with the East-Elbic migration route, the short distance to the Prut River and being located in the northern part of the Bugeac steppe, ensures a great diversity both in winter and nesting, and especially in the migration period. During 2016-2021, we registered the presence of 126 bird species, which represent 46% of the total species encountered in the Republic of Moldova.

scholarly journals Exceptional floods in the Prut basin, Romania, in the context of heavy rains in the summer of 2010

2017 ◽  
Vol 17 (3) ◽  
pp. 381-396 ◽  
Author(s):  
Gheorghe Romanescu ◽  
Cristian Constantin Stoleriu
Keyword(s):  
Czech Republic ◽  
Eastern Europe ◽  
Central And Eastern Europe ◽  
The Czech Republic ◽  
Republic Of Moldova ◽  
Atmospheric Instability ◽  
The Republic ◽  
Gauging Station ◽  
Prut River ◽  
Heavy Rains

Abstract. The year 2010 was characterized by devastating flooding in central and eastern Europe, including Romania, the Czech Republic, Slovakia, and Bosnia-Herzegovina. This study focuses on floods that occurred during the summer of 2010 in the Prut River basin, which has a high percentage of hydrotechnical infrastructure. Strong floods occurred in eastern Romania on the Prut River, which borders the Republic of Moldova and Ukraine, and the Siret River. Atmospheric instability from 21 June to 1 July 2010 caused remarkable amounts of rain, with rates of 51.2 mm/50 min and 42.0 mm/30 min. In the middle Prut basin, there are numerous ponds that help mitigate floods as well as provide water for animals, irrigation, and so forth. The peak discharge of the Prut River during the summer of 2010 was 2310 m3 s−1 at the Rădăuţi-Prut gauging station. High discharges were also recorded on downstream tributaries, including the Baseu, Jijia, and Miletin. High discharges downstream occurred because of water from the middle basin and the backwater from the Danube (a historic discharge of 16 300 m3 s−1). The floods that occurred in the Prut basin in the summer of 2010 could not be controlled completely because the discharges far exceeded foreseen values.

scholarly journals Evaluarea stării ecologice a fluviului Nistru conform unor parametri fizico-chimici

2019 ◽  
Author(s):  
Olga Jurminskaia ◽  
◽  
Elena Zubcov ◽  
Nadejda Andreev ◽  
Anastasia Ivanova ◽  
...  
Keyword(s):  
Reference Conditions ◽  
Ecological Status ◽  
Water Bodies ◽  
Ecological State ◽  
Republic Of Moldova ◽  
Current State ◽  
The Republic

Ecological status of watercourses is determined by comparing the current state with the reference conditions, which are established for each typology of water bodies by analysing of long-term observations. The Laboratory of Hydrobiology and Ecotoxicology of the Institute of Zoology carried out the integrated scientific monitoring of the Dniester River during 2015 – 2018. The data obtained were used to assess the ecological state of the Dniester River within the Republic of Moldova.

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