bluuebunny/crossref_metadata_2025 huggingface dataset:
Appeal against the notary’s decision to refuse to perform a notarial act
Authors: Zaborovskyy V. V. , Mendzhul M. V. , Fennych V. P.
Published: February 2025

The scientific article is aimed at revealing the features of appealing a refusal to perform notarial acts in court. The significance of notarial acts in the mechanism of exercising civil rights and obligations is investigated, the consequences of refusing to perform a notarial act are indicated.
The concept and essence of refusing to perform a notarial act, which is the result of notarial proceedings and by its nature is a procedural action of a notary, is revealed. The refusal to perform a notarial act by a notary is compared with other procedural actions of notarial proceedings.
The issue of jurisdiction of the claim to appeal a refusal to perform a notarial act by a notary is analyzed and the existence of the problem of demarcation between the civil and administrative jurisdictions of this category of judicial case is noted in practice. This is especially evident in the case of appealing a refusal to perform notarial acts committed by officials of local self-government bodies working in government bodies.
It is noted that the appeal of the refusal to perform a notarial act is carried out in civil proceedings according to the rules of claim proceedings. In this regard, it is indicated that there are certain problems in practice when exercising the right to sue in this category of civil cases. In particular, the situation is studied when a notary who refused to perform a notarial act does not issue a resolution on this issue, as required by the Law of Ukraine “On Notarial Services”. The legal position of the Supreme Court is analyzed, which offers a way out of such a situation and it is noted that such a solution to the issue complicates access to justice regarding the verification of the legality of notarial activities in the event of a refusal to perform a notarial act.
The peculiarity of the court decision when satisfying a claim for refusal to perform a notarial act and the problem of the independence of notarial bodies in this regard are studied.
Transport logistics and features of handling dangerous goods in ports (international legal aspect)
Authors: Dopilka V. O. , Balobanov O. O.
Published: February 2025

Significant in terms of nomenclature and volume of normative and recommendatory acts, striving for comprehensive action, developed and being developed at the international, regional (EU) and national levels, testifies to the ever-increasing relevance of the issue, the search for its systematic solution in relation to the entire transport complex serving world trade.
Taking into account the geographical location and the planned integration into the European transport system, Ukraine is obliged to create a regulatory framework for the transportation of dangerous goods that meets international standards and EU requirements. The port component of transportation (transshipment and storage, interaction of different types of transport) is especially important for the transport complex of Ukraine, since currently ports as logistics centers have become not only transport hubs, but also the main components of maritime transport, which accounts for the majority of international transportation.
Thus, the system-forming directions of the ongoing research should become:

unification of the rules for the transportation of dangerous goods in European and other countries that trade with them;
unification of rules for managing safe conditions of transportation of various types of transport;
tying of the regulations being developed to the specific conditions of port activity.

The system of international regulation of the transportation of dangerous goods is quite complex and its regulatory legal support includes many conventions and agreements. Scheme of actions of the main conventions and agreements regulating the transportation of dangerous goods by various modes of transport, and international organizations that ensure their development and promote their implementation into regional norms and national transport legislation.
Stevedoring companies carrying out the transshipment of dangerous goods and operating hydrotechnical structures, piers, storage sites for work on dangerous goods must have a license for loading and unloading activities in relation to dangerous goods in sea ports and a license for the operation of explosive production facilities (dangerous production facilities facilities at which they are obtained) are used, formed, stored, transported, destroyed substances capable of forming explosive mixtures when interacting with oxygen or with each other (flammable gases, flammable and combustible liquids, dust-forming substances), solid-phase and liquid-phase substances capable of spontaneous decomposition with explosion).
Annulment of arbitration awards in Ukraine
Authors: Kachuriner V. L.
Published: February 2025

The article examines key trends in the annulment of arbitral awards in Ukraine. Arbitration is one of the most important forms of alternative dispute resolution in the field of international commercial law. However, the practice of annulment of arbitral awards remains an important topic for analysis due to its impact on the stability and predictability of the arbitration process, as well as on the country’s investment climate.
The study examines the main reasons why arbitral awards may be annulled by the courts of Ukraine. Among them: violation of procedural norms during the arbitration proceedings, inconsistency of the award with public order, absence of an arbitration agreement or abuse of authority by arbitrators.
The article also examines the dynamics of judicial practice, in particular the role of the Supreme Court in forming a unified approach to considering cases on the annulment of arbitral awards. Specific judicial precedents are analyzed, which indicate the gradual strengthening of the approach focused on protecting the principles of autonomy of arbitration. It is found that courts are beginning to move away from a purely formalistic approach to a more flexible analysis of the circumstances of each case.
Particular attention is paid to a comparative analysis with international practice. The study demonstrates that in the EU and the USA, the practice of annulling arbitral awards is much less common, as courts pay more attention to maintaining the finality of arbitral awards. The authors indicate that the Ukrainian judicial system needs further harmonization with international standards, such as the New York Convention on the Recognition and Enforcement of Foreign Arbitral Awards and the UNCITRAL Model Law.
The conclusions of the article emphasize the need for a comprehensive reform that would include improving both the legislative framework and the practical implementation of judicial control. It is recommended to introduce additional training programs for arbitration judges and develop clear recommendations for the application of the concept of public order.
Thus, the development of a unified approach to annulling arbitral awards should become one of the key priorities for the Ukrainian legal system. This will ensure a balance between the need for judicial control and respect for the arbitration process, which is an important condition for attracting foreign investment and increasing the effectiveness of arbitration as a dispute resolution tool.
The influence of international organizations on the national legislative process in EU member states
Authors: Martseliak O. V.
Published: February 2025

The article is devoted to the study of the influence of international organizations on the national legislative process in the European Union, focusing on the adaptation of EU legislation to global legal standards. The relevance of the topic is due to the growing role of international law in the context of globalization, when countries are forced to coordinate their actions to ensure stability, security, support for human rights and sustainable development. International organizations, such as the United Nations (UN), the World Trade Organization (WTO), the World Health Organization (WHO) and the Council of Europe, are considered to have a significant influence on the formation of EU legal norms, ensuring the harmonization of national legislation of the Member States and complete legal certainty throughout the territory of the Union.
The paper highlights the main forms of influence of international organizations on lawmaking in the EU, in particular through the adoption of recommendations, directives, conventional international agreements, as well as through the implementation of decisions of international courts, such as the European Court of Human Rights. Particular attention is paid to the areas of human rights, economic regulation, environmental protection and security, international standards have become the basis for the development of European norms. The analytical approach allows us to assess how international organizations not only adapt EU legislative acts to global requirements, but also ensure the effectiveness of internal order, market security of citizens, social justice and protection of human rights. The article also considers the prospects for further integration of international standards into the EU legal system, in particular in the context of new global challenges, such as cyber threats, pandemics, migration crises and climate change. The conclusions of the study indicate the importance of EU cooperation with international organizations both for increasing the level of legal protection of citizens and for strengthening the role of the EU as a global legal actor. Based on the analysis, the article emphasizes the interaction of international law and regional regulations as a factor in increasing the stability and development of the EU legal system.
Legal issues of the use of geostationary orbit: between national interests and international space law
Authors: Semenyaka V. V.
Published: February 2025

The article is devoted to the study of legal issues of the use of geostationary orbit (GSO) in the context of national interests and international space law. GSO is a scarce natural resource, which is extremely important for the placement of telecommunication, metrological, navigational spacecraft, as well as for solving scientific and military tasks. Due to the limitations of geostationary positions, the use of the orbit is a subject of international competition, which requires effective legal regulation to ensure fair access to it and eliminate potential interstate conflicts.
The law-making activity of the International Telecommunication Union (ITU), which is responsible for the distribution of geostationary segments necessary for the functioning of space vehicles, was noted. The mechanism of distribution of limited natural resources between states provides for the application of such additional criteria as the type and geospatial relationship of the territory of a certain state.
The legal consequences of the adopted Bogotá Declaration are outlined, according to which GSO is considered a natural resource that is not part of outer space. Special attention is paid to the norms of the constitutional law of Colombia and Ecuador, which provide for the realization of the absolute and exclusive sovereignty of these states regarding the segments of the geostationary satellite orbit that correspond to their territories.
It has been established that the regulation of geostationary relations at the domestic level gives rise to a number of legal issues regarding the balance of national interests and international obligations of states in the field of using orbital resources.
It was determined that the constitutional and legal recognition of the segments of the GSO as part of the territory of individual equatorial states demonstrates significant deviations from the established norms and principles of international space law. The need to modernize international space law is emphasized - the formation of new international legal structures aimed at improving the tools that ensure a fair and effective distribution of the components of the orbit of geostationary satellites.
Coordination of ontological and deontological aspects of discretion of law enforcement subjects
Authors: Vandzhurak R. V.
Published: February 2025

The relevance of the study of the discretion of law enforcement agencies is due to the fact that, firstly, there are constant heated discussions around the very concept of discretion - what is discretion itself and where are the limits of its application, and secondly, an analysis of a number of classical sources and modern studies of this issue gives grounds to assert that the views of scholars on this issue are divided into two streams, some of which defend the expediency (even the necessity) of discretion, while others express fears that unlimited discretionary powers may lead to procedural arbitrariness. Without adhering to any of these trends, i.e., professing objectivity as a necessary element of any research, the author made an attempt to study the discretion of law enforcement subjects from a philosophical point of view, in particular, through the prism of ontological and deontological modes of cognition. Using the method of analysis, the author managed to establish that the legal concept of discretion should be studied not only in the ontological dimension, but also in the deontological aspect, combining these modes of knowledge for a more complete understanding of discretionary powers, while to substantiate the results and formulate the conclusions of the proposed study, the author used the methods of deductive-logical analysis, inductive generalisation and analogy, which led to the conclusion that a fundamental condition for optimising discretionary approaches to procedural decision-making is the mutual coordination of the deontological content of the latter with the ontology of natural and social contexts. The author is convinced that the study of the discretion of law enforcement officials is very relevant today and requires wider discussions among scholars and practitioners, and his attempt to address this issue in a philosophical manner is quite original and has a scientific novelty, since so far the issues under consideration have not been studied from this perspective at this level, especially since the idea of the expediency of reconciling these two modes of knowledge in understanding the phenomenon of reason has not yet been the subject of thorough scientific research. At the same time, the author believes that understanding the discretion of law enforcement officials in a philosophical manner is of great practical importance, since it is hardly possible to understand a particular subject or phenomenon without its awareness and cognition.
Bangalore principles of judicial conduct as the foundation of judicial ethics
Authors: Romanova A. S.
Published: February 2025

The article is devoted to the features of ensuring and implementing the Bangalore Principles of Judicial Conduct as the basis of judicial ethics, the purpose of which is to establish standards of ethical behavior of judges in order to support and develop trust in the judiciary in society.
It is found that the Bangalore Principles of Judicial Conduct define the fundamental ethical standards of the judiciary in general and the moral and ethical requirements for the person of a judge in particular. These principles define independence, objectivity, honesty, incorruptibility, equality, competence and diligence as key factors in judicial proceedings, and their observance in professional activities and everyday life contributes to the formation and strengthening of citizens’ trust in the judiciary.
It is emphasized that the Code of Judicial Ethics in force in Ukraine, formed on the basis of the analyzed principles, justifies the importance of their implementation in national judicial systems, since their observance will contribute to the encouragement and maintenance of high moral and ethical and professional and competence standards in the behavior of judges.
It is noted that judicial ethics covers the professional and personal aspects of a judge’s life, explores and develops moral and ethical relations between judges and participants in the judicial process. Moral and ethical norms in the judiciary should be formed on the basis of the principle of human centrism, the priority of human rights and freedoms.
Attention is focused on the fact that today in Ukraine the value orientations of society’s development have acquired special importance in all spheres of a person’s life, because a consolidated, harmonious morally and spiritually stable society is able to fully develop and ensure and guarantee the fundamental rights and freedoms of a person and a citizen.
It is emphasized that the above principles are aimed not only at establishing and recommending compliance with ethical principles as regulations of internal requirements for the behavior of judges. They should contribute to supporting the administration of justice by representatives of the executive and legislative branches, lawyers, and society, which will develop interaction between them in order to ensure the rule of law and the triumph of justice.
Public organizations as the basis for the formation of the legal ideology of modern society
Authors: Chornopyska V. Z.
Published: February 2025

It is indicated that our state at the constitutional level guarantees that public life is based on the principles of political, economic and ideological pluralism. However, legal ideology must be monistic in its substantive and functional subordination to the rule of law, because by its nature it is a significant driver of positive change in legal reality. As historical experience shows, legal ideology has become a way of organizing civil society and its institutions, a vector of cardinal world transformations, a dominant factor in the development and functioning of most states, a criterion of positive legal progress.
The article reveals the role of public organizations in the formation of the legal ideology of Ukrainian society. Revealing the potential of public organizations in the formation of the legal ideology of Ukrainian society, the following functions of these organizations in this process are identified: civil and professional socialization; communication function; regulatory, organizational, oppositional, protective, educational and personnel functions. The article reveals that among the most popular ways of forming the legal ideology of Ukrainian society, which are used by public organizations and are extremely significant in military conditions, the following should be distinguished: volunteer and charitable activities, educational and scientific work, establishing international relations, providing support to socially vulnerable citizens, internally displaced persons, victims of military operations, and military personnel and their families.
The article emphasizes that the role of public organizations in the formation of legal ideology lies primarily in achieving a general social consensus, a social compromise, on the basis of an established, holistic vision of the role of law in the state and civil society, as well as in determining the main goals, methods and mechanisms of legal regulation. One of the obligations of the state in relation to public organizations is the regulatory and legal support of their activities and interaction with public authorities, in particular the adoption of special laws that determine their legal status.
The administrative and legal mechanism for combating domestic violence in areas affected by hostilities: implementation challenges
Authors: Bondar V.
Published: February 2025

The article is devoted to the study of the administrative and legal mechanism for combating domestic violence in areas affected by active hostilities, taking into account the specific challenges arising under such conditions. The problem of the increasing incidence of domestic violence in Ukraine amidst active armed conflict is characterized. Statistical data confirming the exacerbation of the issue are presented, including a significant rise in reports of domestic violence despite a decrease in the population in combat zones.
The main part of the research focuses on examining the specific factors contributing to the emergence of domestic violence during wartime. The authors identify such factors as economic instability, heightened stress levels, post-traumatic stress disorders (PTSD) among military personnel, and social, cultural, and legal barriers that limit the ability to combat domestic violence. Attention is drawn to the peculiarities of domestic violence in military families, which are influenced by psychological tension, facilitated access to weapons, and, in some cases, marginal behavior.
The article thoroughly examines the administrative and legal mechanism for combating domestic violence, which is grounded in Ukraine’s national legislation and international legal instruments. Emphasis is placed on the amendments to administrative legislation aimed at addressing the current challenges of combating domestic violence. Specific attention is given to the 2024 amendments to the Code of Administrative Offenses of Ukraine, which are related to the prevention and counteraction of domestic violence.
Particular emphasis is placed on the importance of organizational measures aimed at enhancing interaction between state authorities, local self-government bodies, non-governmental organizations, and international partners. These measures include the establishment of joint working groups, dissemination of information about victim support services, development of specialized protocols for coordinated actions, and creation of rehabilitation programs designed to ensure social stability.
The role and significance of Kyril Trylovskyi in the legal formulation of the Ukrainian «Sich» movement
Authors: Makovetska N. Y.
Published: February 2025

The article analyzes the role and significance of K. Trylovskyi in the legal formation of the Ukrainian «Sich» movement. It is noted that the first «Sich» organizations arose in the Ukrainian lands as a result of constitutional reforms and political reform of the imperial power of Austria-Hungary. The Constitutional Law of 1867 provided that all nationalities living in the territory of the empire were declared equal before the law. They were declared equal rights. However, in practice, the proclaimed norms often did not correspond to the letter of the law. This led to the self-organization of Ukrainian national-patriotic forces and contributed to the emergence of a number of educational, public and cultural-educational organizations. One of such organizations was the «Sich» society founded by K. Trylovskyi. It is noted that one of the important directions of the functioning of «Sich» organizations was their preparation for the future struggle for their own statehood and independence. Considering the state-political disputes between European countries and their possible consequences for Ukrainians, K. Trylovsky and his like-minded people realized that the «Sich» should act in the future conflict as a separate military force. Given this, there was a need to legally register the «Sich» society, which was extremely problematic under the Polish-Austrian regime. That is why, in the process of legalizing the Sich organizations, K. Trylovskyi declared them as fire and sports public associations aimed at popularizing sports and cultural and educational activities among the population. The network of «Sich» societies rapidly spread across the territory of Western Ukrainian lands and in a short period of time united several thousand Ukrainian patriots. It is stated that an important goal of the activities of «Sich» organizations K. Trylovskyi saw the revival of the best traditions of the «Zaporizhian Sich», thereby ensuring the principles of equality and justice among the population, respect for the traditions of Ukrainian statehood in past historical eras. At the same time, the statutory documents were also aimed at taking into account similar experience of statehood of national-patriotic organizations that had been operating for a long time in the territory of Czech and Polish lands.
Review of the textbook «Customs Law»
Authors: Andriyko O.F. , Nagrebelny V.P.
Published: February 2025

With the declaration of independence of Ukraine, there was an objective need to define and implement the customs policy of the state, aimed at accelerating the circulation of goods, stimulating the development of the country's economy, protecting the domestic market and domestic production, as well as developing customs in accordance with generally recognized international standards and national legislation. Over the past thirty years, a number of monographs, dissertations, textbooks, articles in scientific publications, etc. have been devoted to this issue.
Influence of modern information technologies on the activities of law enforcement agencies: main trends and risks
Authors: Zhuchenko O. D.
Published: February 2025

The article considers the digital transformation of the disclosure, investigation and prevention of criminal offenses, which greatly affects the investigative activities and the investigation process, changes practices in the field of decision-making. It is proved that the emergence and development of information technologies largely determines the performance of traditional functions assigned to law enforcement agencies, and also affects the emergence of new functions. In particular, the future of implementation by law enforcement agencies of the function of investigating criminal offenses will largely be determined by the development of a new sub-branch of forensics – digital forensics. It has been considered the emergence of new concepts of functioning of law enforcement agencies, among which electronic police, virtual police station and others, as elements of electronic control. Creating e-policing in terms of efficiency and effectiveness should be based on ethical principles such as respect for confidentiality, accountability and transparency. It is determined that the virtual police station, as an innovative innovatory technological platform, optimizes the activities of law enforcement agencies, connects the public and law enforcement agencies through an intuitive platform for reporting crimes and access to services and much more.
It is proved that the use of digital technologies and information systems increases the efficiency of law enforcement agencies and opens up new opportunities for crime prevention, facilitates counseling and improving operational efficiency, in particular by automating investigative procedures. Modern information and communication technologies offer law enforcement agencies tools to optimize investigative processes, increase the efficiency of ensuring public safety by them, etc. However, along with the advantages, there are risks, among which data security violations, ethical problems, technological dependence, etc. Strategic forecasting associated with determining the prospects for pre-trial investigation and trial, modeling the consequences of procedural decisions which are making using digital technologies, and planning measures for the modern evidence process.
Celebes Petang: News Program Production Mechanism on Local Televisions
Authors: Sonni Alem Febri , Hidayatullah Fauzan , Sudarmin Sudarmin
Published: February 2025

Celebes TV, one of the local television stations in Makassar, features news as its main program, Celebes Petang. News value is a consideration for journalists to cover what the informant has witnessed and been concerned about because the news becomes more interesting to watch. This research aimed to identify the process of the TV news production of Celebes Petang and all the people involved in the production program and to find out the understanding of Celebes TV journalists on the general criteria for reporting newsworthy events. This qualitative approach collected the data by observation, interviews, and documentation. This research showed that the production process of the news program Celebes Petang on Celebes TV follows the procedure of television programs. The production process starts when the news manager, producer, and reportage in chief observe the broadcasting materials or theme from any courtesy. During the meeting, the reporter and the staff are assigned by the director of reportage to cover the news. After that, the reporter writes the script based on the news. This script is used as the material in the dubbing process. The next stage is editing the news items and dubbing. The producer will correct the result of the editing process. The approved result was printed into the data form and sent to the server to be aired live to the viewers by a crew of the master control room.
Framing Childfree as a Choice: A Case Study of Magdalene.co
Authors: Lynne Nabilla , Mulyani Henny Sri , Maharani Nunik
Published: February 2025

The discourse of childfree has received significant attention in Indonesia since 2021, especially after public figures voiced their decisions to live childfree. This study examines the framing of the issue of child-free in Magdalene.co, a progressive online media, using Media Framing Analysis (MFA) by Shaw & Giles (2009). This study explores how Magdalene.co frames the narrative around the discourse of childlessness. At the macro level, Magdalene.co frames the issue of childlessness as a human rights discussion centered on privacy, personal autonomy, and resistance to social pressure. At the micro level, the analysis reveals narratives that emphasize the psychological and social aspects of the decision to live child-free, but it notes the lack of empirical data to support these arguments. The findings suggest that Magdalene.co supports a neoliberal feminist perspective, which advocates for individual freedom, psychological well-being, and respect for privacy. However, this study also identifies a degree of homogeneity in the narrative and highlights the need for broader empirical studies to deepen the discussion on the social and economic impacts of the decision to be child-free.
La vida online, la inteligencia artificial y su lectura pedagógica
Authors: Pattier Daniel , Redondo-Duarte Sara
Published: February 2025

La expansión de la vida online y la inteligencia artificial (IA) tiene un impacto transformador en los modelos y prácticas educativas. Estos cambios plantean interrogantes en elementos clave del proceso de enseñanza-aprendizaje. El objetivo del estudio es ofrecer una lectura crítica y pedagógica sobre el impacto de estas dimensiones en la educación. Se propone un análisis estructurado en el que se profundiza, en primer lugar, en el efecto de la vida online en la educación, especialmente en la transformación de los procesos educativos y en la evolución de la relación profesorado-estudiantado. En segundo lugar, se expone un apartado dedicado a la IA aplicada a la educación con especial hincapié en las aplicaciones pedagógicas, las oportunidades y los retos éticos derivados de su uso. Más allá, se reflexiona sobre algunos desafíos y consideraciones futuras sobre la temática. Se destaca cómo la digitalización facilita el acceso y la democratización del aprendizaje, pero también aumenta la brecha digital y plantea problemas éticos relacionados con la privacidad y la seguridad de datos. La IA, por su parte, permite personalizar el aprendizaje y mejorar la eficiencia en tareas docentes, aunque plantea dilemas sobre la deshumanización de la enseñanza y el sesgo en los algoritmos. Se concluye que el docente desempeña un papel crucial como garante de una educación ética y equilibrada. Asimismo, aunque la tecnología ofrece nuevas e interesantes posibilidades, debe ser utilizada en los procesos educativos desde la reflexión y el juicio pedagógico del docente para poder establecer un saludable desarrollo integral del alumnado.
La educación como proceso personal: trazos corporales y errancias pedagógicas
Authors: Planella Ribera Jordi , Rodriguez Navarro Henar
Published: February 2025

El papel del cuerpo en la educación ha sido tradicionalmente relegado a un segundo plano, siendo frecuentemente entendido como un mero soporte de la mente. Sin embargo, los debates contemporáneos sobre los "body studies" y las pedagogías sensibles abren nuevas posibilidades para repensar la educación desde una perspectiva que integre la corporalidad y los sentidos como elementos fundamentales del aprendizaje. Este artículo explora la tensión entre dos modelos pedagógicos: una "pedagogía anestesiante", que busca inmovilizar al sujeto educativa y corporalmente, y una "pedagogía sensible", que posiciona al cuerpo como agente central en la construcción de conocimiento. A través de una serie de reflexiones y marcos teóricos, los autores se proponen realizar un trabajo hermenéutico conjunto sobre cómo la pedagogía puede ser re-imaginada como un espacio donde los cuerpos sienten, interactúan y producen sentido, ubicando por tanto a esta área disciplinar dentro de los debates de la Pedagogía Contemporánea.
Pensar y hacer hoy "Teoría de la Educación"
Authors: Muñoz Rodríguez José Manuel , Vila Merino Eduardo S.
Published: February 2025

Artículo de presentación del número especial: "Horizontes educativos para pensar y hacer Teoría de la Educación".
How endocrine disruptors affect fish reproduction on multiple levels: A review
Authors: Socha Magdalena , Chyb Jarosław , Suder Aleksandra , Bojarski Bartosz
Published: February 2025

This review paper presents fish reproductive toxicology studies with a specific focus on endocrine-disrupting chemicals (EDCs) present in the aquatic environment. These substances, including bisphenols, heavy metals, pesticides, phthalates, and polychlorinated biphenyls (PCBs), act as hormone mimics, receptor blockers, or enzyme inhibitors that affect hormonal regulation in the hypothalamic-pituitary-gonadal (HPG) axis. In this review, we provide an overview of the adverse effects of these pollutants on both female and male fish reproduction (i.e., hormonal disruption in the HPG axis, gametogenesis disorders, disturbed embryogenesis, etc.). Even at low concentrations, EDCs can exhibit reproductive toxicity in fishes. They can affect the functioning of certain systems within the hypothalamus (Kiss/GPR54, GnRH) and can also impact luteinizing hormone (LH) secretion in the pituitary. These compounds have negative impacts on gonads, oocyte maturation, steroidogenesis, and gametes. Early-life exposure to these substances not only affects embryonic development, resulting in increased mortality and body malformations, but this also induces genetic changes in newly hatched larvae. All these observations underscore the need for monitoring the aquatic environment for EDCs and implementing protective measures to preserve the health and welfare of fishes and safeguard water ecosystems.
Assessing the probiotic potential of Lactococcus lactis isolated from the intestine and gill of rainbow trout (Oncorhynchus mykiss) through in vitro analysis
Authors: Lucano Billy M. , Feria Manuel A. , Zatan Adrian E. , Toledo Odalis E. , Aguilar Jorge L. , Diringer Benoit M. , Castañeda Arnaldo E.
Published: February 2025

The emergence of diseases and the indiscriminate use of antibiotics have had deleterious consequences in the aquaculture industry. Consequently, the growing emphasis on eco-friendly alternatives has taken center stage, and probiotics have emerged as a notable solution. This investigation aimed to identify and characterize potential probiotic bacteria present in the gills and intestine of rainbow trout (Oncorhynchus mykiss (Walbaum)). A total of 29 isolates were selected for in vitro evaluation. The assays included morphological evaluation, catalase, oxidase, hemolysis, pathogen antagonism, antimicrobial susceptibility, protease, and amylase tests. Seven isolates exhibited antagonism against one of the three pathogens tested (Aeromonas hydrophila, Streptococcus agalactiae, and Lactococcus garvieae). None of the isolates showed resistance to the antibiotics ampicillin, florfenicol, or tetracycline. Furthermore, all isolates showed proteolytic but not amylolytic activity. The isolates with the best characteristics were identified as Lactococcus lactis (n=7) by 16S rRNA gene sequencing.
An investigation on the population parameters of freshwater crayfish (Pontastacus leptodactylus Eschscholtz, 1823) in Lake Yeniçağa (Bolu)
Authors: Gençay İrem , Sorguç Bura Uğur , Saygı Yasemin
Published: February 2025

This study examines the monthly population parameters of Pontastacus leptodactylus in Lake Yeniçağa, including sex, length, and weight compositions, length-weight relationship, fecundity, morphometry, meat yield, and crayfish plague ratio. For this purpose, 641 crayfish were collected using fyke nets with a 34 mm mesh size. The females carrying eggs were observed between February and May. The female specimens carried between 103 and 841 eggs each, with a diameter ranging from 2.03 to 2.82 mm. The research revealed a size range of 80–168 mm and weight range of 15–133 g for crayfish specimens. As a result of regression analyses, the length-weight relationship was calculated as W = 0.0392L2.9148 for males and W = 0.0701L2.6139 for females. The population exhibited negative allometric growth based on the length and weight data. The evaluation of meat yield was based on the total meat yield, which comprises cheliped meat yield and abdomen meat yield. The study found that 14.35% of the P. leptodactylus population in Yeniçağa Lake was affected by crayfish disease. The results indicate that the P. leptodactylus population in Lake Yeniçağa has an overall healthy population structure, with a size suitable for fishing, and should be considered from an economic standpoint.
The first data from non-commercial monitoring of the occurrence and range of river lamprey, Lampetra fluviatilis, in selected rivers in northern Poland
Authors: Kuczyński Tomasz
Published: February 2025

Human impact on fish populations extends beyond mere exploitation. Rivers and streams, essential conduits for these fish migrations, have undergone substantial anthropogenic modifications driven by navigation, hydropower generation, and water regulation imperatives. An example of one species that has been affected from the anadromous lampreys is river lamprey, Lampetra fluviatilis (L.). Populations of anadromous lampreys have declined dramatically in European rivers, including in Poland, because of the loss of river connectivity and habitat modification that prevents adult lamprey from reaching their original spawning grounds. The present study was conducted on 11 rivers located in northern Poland in the southern Baltic Sea catchment area. River lamprey spawners were sampled with dedicated traps, and 3,026 specimens of 29 fish species were caught at all the sites investigated. The most abundant, frequent species was river lamprey (n = 1,062), which was recorded in 10 of 11 rivers. Only in one case, were river lamprey specimens recorded above a barrage with a fish pass in a tributary of the Rega River. In all other rivers, lamprey was recorded only at sampling sites below the first barrier. Since most fish passes are not designed to provide passage for weaker swimming or non-jumping species, they are not suitable for non-salmonid species like river lamprey.
Main life history traits of the largehead hairtail, Trichiurus lepturus (Linnaeus, 1758) from the Senegalese North coast
Authors: Diop Khady , Diouf Khady , Ndiour Yacine , Diouf Sidya , Jouffre Didier
Published: February 2025

Trichiurus lepturus is a benthopelagic species of socio-economic importance in Senegal. Despite its intensive exploitation, there is a lack of studies on its life traits in West African waters, particularly in Senegal. This study aims to determine the biological parameters of this species in the northern coastal zone of Senegal. Samples were collected monthly from April 2015 to March 2016 in Cayar, one of the main landing sites in Senegal. A total of 354 specimens were caught with longlines. Condition factor varied between the years with a peak in May. Positive allometric growth (b = 3.24) was found for this species. The reproductive period mainly occurred from April to July, and the sizes at first sexual maturity were 831 mm and 766 mm for females and males, respectively. Absolute fecundity was highly variable (39,976.88 ± 19,793.02 oocytes). The growth parameters estimated were asymptotic length (L∞) = 134 cm and the growth coefficient (K) = 0.0016. The maximum observed age was 1 year and 7 months. These parameters could be integrated into stock assessment models, providing a better estimate of the exploitation level of this resource and aiding in the formulation of more scientifically informed management measures for sustainable exploitation.
Effects of preserving juvenile rainbow trout (Oncorhynchus mykiss) in formalin and alcohol on body length, mass, and condition factor estimates
Authors: Greszkiewicz Martyna , Fey Dariusz P.
Published: February 2025

Body length and weight are key parameters measured to provide information about the growth and condition of larval, juvenile, and adult fishes from both the wild and aquaculture. The goal of this study was to evaluate the effects of preservation in formalin and alcohol on juvenile rainbow trout, Oncorhynchus mykiss (Walbaum) standard body length (SL) and weight changes. Standard length (19.43–32.98 mm SL) decreased after 60 days of preservation by an average of 2.98% in 96% alcohol and 2.26% in 10% formalin. In contrast, fish body weight (0.094–0.63 g) decreased in alcohol (31.22%) but increased in formalin (11.65%). These percentage values can be used as correction factors, with the exception of fish body weight in alcohol since the size of individuals affected the magnitude of change. Accordingly, a correction formula accounting for fish weight must be applied (fresh weight (g) = -0.0363 + 1.667 × preserved length). Changes in fish length and body weight in different preservatives resulted in significant differences in the Fulton condition factor, with underestimation in alcohol (fresh F = 1.58; preserved F = 1.20) and overestimation in formalin (fresh F = 1.60; preserved F = 1.92).
Historical occurrence of Atlantic sturgeon, Acipenser oxyrinchus Mitchill, 1815, in the tributaries of the Vistula River in Poland
Authors: Cios Stanisław
Published: February 2025

All known historical accounts of the occurrence of Atlantic sturgeon (Acipenser oxyrinchus Mitchill) in the tributaries of the Vistula River are presented and analyzed. Sturgeon occurred in most large, medium, and small Vistula tributaries and in the upper reaches of the Vistula River in Silesia. The fish either migrated or strayed there rarely and irregularly, usually as single specimens and mainly during high waters. The data available do not provide evidence that sturgeon spawned successfully in any of the tributaries. In particular, the data do not support the commonly held view that Drwęca was the most important spawning river after 1918, which is the basis of the ongoing sturgeon reintroduction program.
Effects of dietary Chlorella ellipsoidea on growth performance, body composition, and hematology of stinging catfish, Heteropneustes fossilis
Authors: Alam Asraful , Bristy Fouzia Sultana , Amzad Hossain M. , Rabiul Islam M. , Fatema Umme Kaniz , Golam Rasul M.
Published: February 2025

Microalgae have emerged as a promising feed supplement in aquaculture diets. Therefore, the aim of this study was to investigate the effect of Chlorella ellipsoidea as a feed supplement on the growth performance, body composition, and hematology of stinging catfish, Heteropneustes fossilis (Bloch). Five experimental diets were formulated to conduct this experiment by supplementing 0, 2.5, 5.0, 7.5, and 10% C. ellipsoidea at the expense of fish meal, and these are referred to as the control, CE 2.5, CE 5, CE 7.5, and CE 10 diets, respectively. A total of 900 fish (mean body weight of 0.50 ± 0.01 g) were divided equally into15 glass aquaria (180 L). Triplicate groups of fish were fed with each experimental diet to satiation twice daily for 10 weeks. At the end of the feeding trial, the weight gain (%) of the fish fed CE 5 and CE 7.5 was significantly (P < 0.05) higher than that of fish fed the control diet. The specific growth rate (SGR) of the fish fed CE 5 was significantly higher (p < 0.05) but comparable to those fed CE 2.5 and CE 7.5. The feed conversion ratio (FCR) of the fish fed CE 5, CE 7.5, and CE 10 was significantly (P < 0.05) lower, and the protein efficiency ratio (PER) of the fish fed CE 7.5 and CE 10 was significantly (P < 0.05) higher compared to all the other diets. In comparison to the control, dietary C. ellipsoidea of 5.0–10.0% significantly (P < 0.05) increased the protein content of stinging catfish, while lowering the lipid and moisture contents. The red blood cells, white blood cells, hemoglobin, hematocrit, and mean corpuscular hemoglobin levels of H. fossilis increased significantly (P < 0.05) when the fish were fed 5.0–10.0% dietary C. ellipsoidea compared with the control. Based on the findings of the study, 5.0–10.0% C. ellipsoidea supplementation was optimal in the stinging catfish diet to improve growth performance, body composition, hematology, and immunological response. However, based on regression analysis, the optimum level of C. ellipsoidea as a feed supplement was calculated to be 4.9–5% in stinging catfish.
Supply Chain Sustainability and Financial Performance: The Role of E-Commerce, Digital Banking and Digital Marketing of SMEs
Authors: Toni Nagian , Goh Thomas Sumarsan , Edward Yusuf Ronny , Calen
Published: February 2025

This study aims to analyse the relationship between e-commerce and the business sustainability of the supply chain, as well as digital marketing variables and the business sustainability of the supply chain. The method used in this study is an associative strategy: business sustainability and financial performance, Digital banking and the financial performance of SMEs. The research method used in this study is a quantitative approach. This study uses a purposive sampling technique because sampling is carried out with specific considerations or criteria that must be met. The data collection method in this study was carried out by distributing questionnaires online through social media. Respondents in this study were 668 SME owners in Indonesia. The scale used to measure is a scale with an interval of 1 - 5, from strongly disagree to agree strongly. The data collection technique in this study uses a questionnaire by providing several written statements addressed to respondents, which will then be answered. Structural equation modelling is often called Partial Squares Structural Equation Modeling (PLS-SEM) with SmartPLS version 3.0. The results of this study show that the E-Commerce variable has a positive effect on the business sustainability of the supply chain, and digital marketing has a positive impact on the business sustainability of the supply chain. The supply chain of business sustainability has a positive and significant relationship to financial performance. Digital banking has a positive and significant relationship with the financial performance of SMEs.