scholarly journals Current state of secondary commercial species populations in the Kremenchutskе reservoir

2020 ◽  
pp. 47-58
Author(s):  
O. Buzevich ◽  
◽  
V. Gurbik ◽  
S. Koba ◽  
N. Tushnytska ◽  
...  
Keyword(s):  
Fish Species ◽  
Practical Significance ◽  
Native Fish ◽  
Large Species ◽  
Small Species ◽  
Time Data ◽  
Commercial Catch ◽  
Current State ◽  
Commercial Species ◽  
Kremenchug Reservoir

Goal. To determine and analyze the structural and quantitative parameters of secondary commercial species of the Kremenchug reservoir. Methodology. The data of commercial catches of the Kremenchug reservoir for 2009–2019 were used as primary materials. The methods generally accepted for ichthyological studies were used for the sampling and further analysis Findings. Commercial catches of native fish species belonging to the category of "secondary large species" (catfish, pike, asp, chub) in the Kremenchug reservoir in recent years show a tendency for an increase: in 2010-2014 their landing was at 78 tons, in 2015 - 104 tons, in 2016 - 107 tons, in 2017 - 134.9 tons. This increase was mainly (by 65%) ensured catfish, to a lesser extent (by 30%) by pike. In 2018, there was a significant decrease in landings in this category to 116.1 tons, in 2019 - again an increase to 140.7 tons. A similar trend was observed for the category of secondary small-sized species (perch, knife, rudd, tench): in 2010-2014 the catch did not exceed 66 tons, in 2015 - 104 tons, in 2016 - 107 tons, in 2017 - 97 tons. In recent years, the maximum catches of commercial native fish species belonging to this category were observed, e.g., 179.6 tons in 2018, 175.3 tons in 2019. Due to a low abundance of these species, both commercial and survey catches have a certain instability, while there is a lack of clear trends in the dynamics of structural and functional parameters of catches. The main factor that limits the statistics of this category is the organization of fishing and accounting of landed fish. Originality. For the first time, data on commercial catches of native fish species belonging to the category of "secondary large species" and "secondary small species" in the Kremenchug reservoir in recent years have been obtained and analyzed. Practical significance. The obtained results will be used for preparation of the fishing regime in the Kremenchug reservoir. Improving the level of organization of fishing and accounting of landed fish. Keywords: reservoir, secondary large species, secondary small species, commercial catch.

The current state of the legislative implementation of criminal law policy

2020 ◽  
pp. 111-118
Author(s):  
Oleksandr Ostrohliad
Keyword(s):  
Law Enforcement ◽  
Criminal Code ◽  
Practical Significance ◽  
New Approach ◽  
Public Discussion ◽  
Current State ◽  
Criminal Offenses ◽  
Legal Technology ◽  
Logical Semantic

Purpose. The aim of the work is to consider the novelties of the legislative work, which provide for the concept and classification of criminal offenses in accordance with the current edition of the Criminal Code of Ukraine and the draft of the new Code developed by the working group and put up for public discussion. Point out the gaps in the current legislation and the need to revise individual rules of the project in this aspect. The methodology. The methodology includes a comprehensive analysis and generalization of the available scientific and theoretical material and the formulation of appropriate conclusions and recommendations. During the research, the following methods of scientific knowledge were used: terminological, logical-semantic, system-structural, logical-normative, comparative-historical. Results In the course of the study, it was determined that despite the fact that the amendments to the Criminal Code of Ukraine came into force in July of this year, their perfection, in terms of legal technology, raises many objections. On the basis of a comparative study, it was determined that the Draft Criminal Code of Ukraine needs further revision taking into account the opinions of experts in the process of public discussion. Originality. In the course of the study, it was established that the classification of criminal offenses proposed in the new edition of the Criminal Code of Ukraine does not stand up to criticism, since other elements of the classification appear in subsequent articles, which are not covered by the existing one. The draft Code, using a qualitatively new approach to this issue, retains the elements of the previous classification and has no practical significance in law enforcement. Practical significance. The results of the study can be used in law-making activities to improve the norms of the current Criminal Code, to classify criminal offenses, as well as to further improve the draft Criminal Code of Ukraine.

RETAIL BANKING SERVICES AND PROSPECTS FOR ITS DEVELOPMENT IN THE REPUBLIC OF UZBEKISTAN

2020 ◽  
Vol 3 (3) ◽  
pp. 26-31
Author(s):  
Zafar Umarov ◽  
◽  
Shahnoza Pardayeva
Keyword(s):  
Retail Banking ◽  
Practical Significance ◽  
Banking Services ◽  
Current State ◽  
The Republic

This article is about a market of retail banking services in Uzbekistan and development of this market. It covered the practical significance of retail banking services, analyzes the current state and ways to improve it. The article analyzes past and current years,identifies problems and provides recommendations for addressing them.

scholarly journals Advancing improvement in riverine water quality caused a non-native fish species invasion and native fish fauna recovery

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Łukasz Głowacki ◽  
Andrzej Kruk ◽  
Tadeusz Penczak
Keyword(s):  
Water Quality ◽  
Fish Species ◽  
Native Species ◽  
Interference Competition ◽  
Fish Fauna ◽  
Species Traits ◽  
Native Fish ◽  
Biological Degradation ◽  
Species Invasion ◽  
Prussian Carp

AbstractThe knowledge of biotic and abiotic drivers that put non-native invasive fishes at a disadvantage to native ones is necessary for suppressing invasions, but the knowledge is scarce, particularly when abiotic changes are fast. In this study, we increased this knowledge by an analysis of the biomass of most harmful Prussian carp Carassius gibelio in a river reviving from biological degradation. The species' invasion followed by the invasion's reversal occurred over only two decades and were documented by frequent monitoring of fish biomass and water quality. An initial moderate improvement in water quality was an environmental filter that enabled Prussian carp’s invasion but prevented the expansion of other species. A later substantial improvement stimulated native species’ colonization of the river, and made one rheophil, ide Leuciscus idus, a significant Prussian carp’s replacer. The redundancy analysis (RDA) of the dependence of changes in the biomass of fish species on water quality factors indicated that Prussian carp and ide responded in a significantly opposite way to changes in water quality in the river over the study period. However, the dependence of Prussian carp biomass on ide biomass, as indicated by regression analysis and analysis of species traits, suggests that the ecomorphological similarity of both species might have produced interference competition that contributed to Prussian carp’s decline.

scholarly journals Digestible energy of crude glycerol for pacu and silver catfish

2014 ◽  
Vol 44 (8) ◽  
pp. 1448-1451 ◽  
Author(s):  
Rafael Ernesto Balen ◽  
Patrick Nereu Tetu ◽  
Robie Allan Bombardelli ◽  
Paulo Cesar Pozza ◽  
Fábio Meurer
Keyword(s):  
Fish Species ◽  
Crude Glycerol ◽  
Energy Content ◽  
Biodiesel Production ◽  
Native Fish ◽  
Neotropical Fish ◽  
Digestible Energy ◽  
Silver Catfish ◽  
Glycerol Utilization ◽  
Good Potential

The increase in global biodiesel production is originating a glycerol surplus, which has no defined destination. An alternative to overcome this problem is its use as energy source in animal feeding. In Brazil, Pacu (Piaractus mesopotamicus) is one of the most farmed native fish species, whereas Silver catfish (Rhamdia quelen) is suitable for production in subtropical region. Considering little knowledge about crude glycerol utilization in feeds for Neotropical fish species, it was evaluated the apparent digestibility coefficients (ADCs) for energy of crude glycerol for P. mesopotamicus and R. quelen. The digestibility and digestible energy content of crude glycerol can be considered excellent even when compared to energy of common ingredients such as maize and wheat, presenting 0.97 and 0.89 of energy ADCs, and 15.2 and 13.95MJ kg-1 of digestible energy for Pacu and Silver catfish, respectively. In conclusion, crude glycerol is an energetic ingredient with good potential in Brazilian native fish diets.

scholarly journals Conservation-Status Gaps for Marine Top-Fished Commercial Species

Fishes ◽  
2021 ◽  
Vol 7 (1) ◽  
pp. 2
Author(s):  
Imanol Miqueleiz ◽  
Rafael Miranda ◽  
Arturo Hugo Ariño ◽  
Elena Ojea
Keyword(s):  
Fish Species ◽  
Conservation Status ◽  
Species Conservation ◽  
Biodiversity Loss ◽  
Vulnerability Index ◽  
Iucn Red List ◽  
Red List ◽  
Commercial Fish ◽  
Commercial Species ◽  
Marine Realm

Biodiversity loss is a global problem, accelerated by human-induced pressures. In the marine realm, one of the major threats to species conservation, together with climate change, is overfishing. In this context, having information on the conservation status of target commercial marine fish species becomes crucial for assuring safe standards. We put together fisheries statistics from the FAO, the IUCN Red List, FishBase, and RAM Legacy databases to understand to what extent top commercial species’ conservation status has been assessed. Levels of assessment for top-fished species were higher than those for general commercial or highly commercial species, but almost half of the species have outdated assessments. We found no relation between IUCN Red List traits and FishBase Vulnerability Index, depreciating the latter value as a guidance for extinction threat. The RAM database suggests good management of more-threatened species in recent decades, but more data are required to assess whether the trend has reverted in recent years. Outdated IUCN Red List assessments can benefit from reputed stock assessments for new reassessments. The future of IUCN Red List evaluations for commercial fish species relies on integrating new parameters from fisheries sources and improved collaboration with fisheries stakeholders and managers.

scholarly journals Length and Weight Relationships for 31 Species of Fishes Caught by Trawl Off the Arabian Sea Coast of Oman

2008 ◽  
Vol 13 ◽  
pp. 43
Author(s):  
Brett A. Human ◽  
Haithem Al-Busaidi
Keyword(s):  
Fish Species ◽  
Arabian Sea ◽  
Stock Assessment ◽  
Fork Length ◽  
Biological Parameters ◽  
Conversion Factors ◽  
Weight Measurement ◽  
Total Length ◽  
Commercial Species ◽  
Sea Coast

Length and weight measurement for 31f ish species encountered in the Arabian Sea , o f f t h e Oma n Coast, were collected by demersal trawling during March 2007 and March 2008. A total of 3,261 specimens were measured for total length, or fork length, where appropriate, and green weight. Several commonly caught commercial species undergo onboard processing (dressing) prior to packaging, and dressed weight to green weight regressions and conversion factors were calculated for 12 of these species. The relationships obtained in this study were compared with those of other  studies for the same fish species. These data are fundamental to understanding the biological parameters of fishes, and can be applied to fisheries stock assessment and management models. 

scholarly journals GASTRONOMIC TOURISM OF TRANSCARPATHY: CURRENT STATE AND PERSPECTIVES

2018 ◽  
pp. 78-89
Author(s):  
Ivan Hodia
Keyword(s):  
Research Methodology ◽  
The State ◽  
Actual Data ◽  
Practical Significance ◽  
Development Method ◽  
Mountainous Regions ◽  
Current State ◽  
Further Development

Purpose. The purpose of the article is to study the state of gastronomic tourism of Transcarpathia and outline ways of its further development. Method. The research methodology consisted of collecting actual data, as well as synthesizing and analyzing the collected statistical material, studying the scientific and practical developments of domestic and foreign experts in the field of gastronomic tourism. Results The current state of gastronomic tourism in Transcarpathia is highlighted and the ways of its further development are outlined, features of national cuisines of the region are described, the list of main gastronomic tours and festivals of Transcarpathia is described. Scientific novelty. Selected some objects of gastronomic tourism, which are popular in the region, but not included in the programs of tours, festivals, holidays. Practical significance. It is recommended to expand the geography of gastronomic routes at the expense of mountainous regions of the region, and in order to diversify the content of gastronomic tours, to enrich their attraction, animation services.

scholarly journals The first unified inventory of non-native fishes of the South Caucasian countries, Armenia, Azerbaijan, and Georgia

2021 ◽  
pp. 32
Author(s):  
Tatia Kuljanishvili ◽  
Levan Mumladze ◽  
Bella Japoshvili ◽  
Namig Mustafayev ◽  
Shaig Ibrahimov ◽  
...  
Keyword(s):  
Black Sea ◽  
Fish Species ◽  
Caspian Sea ◽  
Native Species ◽  
Biological Diversity ◽  
Native Fish ◽  
The Black Sea ◽  
The South ◽  
In The Wild ◽  
Native Fishes

The South Caucasus (SC) region is recognized for its high biological diversity and various endemic animal taxa. The area has experienced many fish introductions over the years, but the overall information about non-native fishes in the three SC countries, Armenia, Azerbaijan, and Georgia did not exist. Although these three countries belong to the Kura River drainage, Caspian Sea basin (only the western half of Georgia drains into the Black Sea), the legislative framework for each country regarding introduction of non-native fish species and their treatment is different and poorly developed. The goal of the present study was to make an initial inventory of non-native fish species in the three SC countries, and summarize the existing knowledge as a basis for future risk assessment models and formulation of regional management policies. Here, we present a unified list of 27 non-native species recorded in the wild in Armenia, Azerbaijan, and Georgia. Among these 27 species, eight were translocated from the Black Sea basin to the Caspian Sea basin. Out of these 27 non-native fishes, 15 species have become established (three of them being considered invasive) and six fish species could not survive in the wild.

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