Ecological Assessment Research Articles

The integration of solar-hydrogen hybrid renewable energy systems in oil and gas industries for energy efficiency: Optimal sizing using Fick's Law optimisation Algorithm

The global demand for sustainable energy solutions in the oil and gas industry has stimulated interest in the integration of renewable energy sources. This paper investigates the techno-economic and environmental aspects of incorporating a solar-hydrogen-based hybrid renewable energy system (SHRES) into oil and gas processing facilities.The proposed SHRES, comprising Solar PV modules, hydrogen production and storage systems, and a gas turbine generator (PV-FC-EL-Tank-GT), aims to enhance energy efficiency and reduce the carbon footprint of energy-intensive operations. The study utilises a multidisciplinary approach, encompassing engineering, economics, and environmental analysis. The techno-economic evaluation employs detailed modelling and optimisation using Fick's Law Algorithm, ensuring efficient energy production and cost-effectiveness. Ecological assessments quantify potential reductions in greenhouse gas emissions and other environmental impacts.The technical and economic evaluation identifies the electrolyser system as the most significant cost contributor (57%). The optimised system balances energy sources with 45% from PV modules, 35% from fuel cells, and 20% from gas turbines, showcasing substantial reliance on renewable energy while maintaining required power generation.Addressing the urgent need for sustainable energy solutions in the oil and gas industry, the study highlights the potential of SHRES integration. By employing Fick's Law Algorithm, alongside with 80 % of renewable energy integration, the research optimises system components to optimise the annualised cost to be $57,539.85, decrease to zero the Loss of Power Supply Probability (LPSP), and mitigate CO2 emissions to a lowest value of 0.147 gCO2eq/kWh (by 80 %). The electrolyser system's pivotal role and the distribution of power generation sources are emphasised.This study presents a novel approach to integrating solar-hydrogen systems into oil and gas processing facilities, aiming for sustainability. The findings underscore the significance of the electrolyser system and the distribution of power generation sources in optimising the SHRES. Recommendations for renewable energy integration and potential reductions in CO2 emissions and costs are discussed, providing valuable insights for future energy policies.

Environmental and Geochemical Assessment of Bottom Sediment Pollution (Approaches, Monitoring, Utilization)

The results of ecological and geochemical assessment of the state of bottom sediments of small rivers in the city of Berezniki (Perm region) are presented, and the issues of environmental monitoring of small rivers of Verkhnekamie are identified. A comprehensive assessment of bottom sediment contamination is carried out. Their unsatisfactory condition in terms of the heavy metals content (Ni, Cu, Zn, Pb, Cd, Hg) and As was noted. Possible environmental actions for the disposal of such sediments are analyzed. It is concluded that it is advisable to carry out on-site remediation or dispose of sediments at specialized landfills followed by recycling.

The transcriptome assembly of the European freshwater mussel Unio elongatulus C. Pfeiffer, 1825

Freshwater mussels of the order Unionida are a global conservation concern. Species of this group are strictly freshwater, sessile, slow-growing animals and, extremely sensitive to environmental changes. Human-mediated changes in freshwater habitats are imposing enormous pressure on the survival of freshwater mussels. Although a few flagship species are protected in Europe, other highly imperilled species receive much less attention. Moreover, knowledge about biology, ecology, and evolution and proper conservation assessments of many European species are still sparse. This knowledge gap is further aggravated by the lack of genomic resources available, which are key tools for conservation. Here we present the transcriptome assembly of Unio elongatulus C. Pfeiffer, 1825, one of the least studied European freshwater mussels. Using the individual sequencing outputs from eight physiologically representative mussel tissues, we provide an annotated panel of tissue-specific Relative Gene Expression profiles. These resources are pivotal to studying the species’ biological and ecological features, as well as helping to understand its vulnerability to current and future threats.

Dynamic Stability, Symmetry, and Smoothness of Gait in People with Neurological Health Conditions

Neurological disorders such as stroke, Parkinson’s disease (PD), and severe traumatic brain injury (sTBI) are leading global causes of disability and mortality. This study aimed to assess the ability to walk of patients with sTBI, stroke, and PD, identifying the differences in dynamic postural stability, symmetry, and smoothness during various dynamic motor tasks. Sixty people with neurological disorders and 20 healthy participants were recruited. Inertial measurement unit (IMU) sensors were employed to measure spatiotemporal parameters and gait quality indices during different motor tasks. The Mini-BESTest, Berg Balance Scale, and Dynamic Gait Index Scoring were also used to evaluate balance and gait. People with stroke exhibited the most compromised biomechanical patterns, with lower walking speed, increased stride duration, and decreased stride frequency. They also showed higher upper body instability and greater variability in gait stability indices, as well as less gait symmetry and smoothness. PD and sTBI patients displayed significantly different temporal parameters and differences in stability parameters only at the pelvis level and in the smoothness index during both linear and curved paths. This study provides a biomechanical characterization of dynamic stability, symmetry, and smoothness in people with stroke, sTBI, and PD using an IMU-based ecological assessment.

Advancing environmental monitoring across the water continuum combining biomarker analysis in multiple sentinel species: A case study in the Seine-Normandie Basin (France)

Nowadays, biomarkers are recognized as valuable tools to complement chemical and ecological assessments in biomonitoring programs. They provide insights into the effects of contaminant exposures on individuals and establish connections between environmental pressure and biological response at higher levels. In the last decade, strong improvements in the design of experimental protocols and the result interpretation facilitated the use of biomarker across wide geographical areas, including aquatic continua. Notably, the statistical establishment of reference values and thresholds enabled the discrimination of contamination effects in environmental conditions, allowed interspecies comparisons, and eliminated the need of a reference site.The aim of this work was to study freshwater-estuarine-coastal water continua by applying biomarker measurements in multi-species caged organisms. During two campaigns, eight sentinel species, encompassing fish, mollusks, and crustaceans, were deployed to cover 25 sites from rivers to the sea. As much as possible, a common methodology was employed for biomarker measurements (DNA damage and phagocytosis efficiency) and data interpretation based on guidelines established using reference values and induction/inhibition thresholds (establishment of three effect levels).The methodology was successfully implemented and allowed us to assess the environmental quality. Employing multiple species per site enhances confidence in observed trends. The results highlight the feasibility of integrating biomarker-based environmental monitoring programs across a continuum scale. Biomarker results align with Water Framework Directive indicators in cases of poor site quality. Additionally, when discrepancies arise between chemical and ecological statuses, biomarker findings offer a comprehensive perspective to elucidate the disparities. Presented as a pilot project, this work contributes to gain insights into current biomonitoring needs, providing new questions and perspectives.

Soil and ecological assessment of the technogenically disturbed landscape in the area of a coal mine dump

Study of the soil‐ecological state of technogenic landscapes of Kuzbass through the example of coal mine dumps.Soil samples were taken in places with disturbed landscapes due to the action of the coal industry, namely the external dump on the site of the coal mine in the area of the village of Zarinskoye, Belovsky district, Kemerovo region in the south‐east of Western Siberia. The indicators were determined in accordance with GOST standards.Diagnostics of the surface of the coal mine dump were carried out. The main physical and chemical indicators were determined, according to which the possibility of soil formation and biological reclamation was assessed. In analyzing chemical composition, the following indicators were determined: aqueous pH, hydrolytic acidity, total alkalinity, dry residue, ash content, humus content and ion content (Cl–, SO42–, HCO3–, Ca2, Mg2+, Al3+). Physical indicators of the degree of suitability of soils for reclamation, such as hygroscopic moisture, soil moisture, soil density and soil porosity, were also studied.The results obtained allow us to characterise the technogenically disturbed areas in terms of physical and chemical properties as being limitedly favourable for plant growth, which can be used for biological reclamation following agrotechnical activity.

Using Folsomia candida (Collembola) for the ecological assessment of sediment samples from three rivers from the QwaQwa region, South Africa

AbstractSince the establishment of a free economic zone and a simultaneous increase in the population of the QwaQwa region, aquatic systems of the area were expected to undergo an increase in metal contamination. The aims of this study were to assess the quality of sediments from the Metsi-Matsho, Namahadi and Elands Rivers of the QwaQwa region, and to investigate their impact on the survival and reproduction of the collembolan Folsomia candida. Due to the lack of freshwater sediment quality guidelines in South Africa, metal contents of the sediments were analysed and critically interpreted using the national action list for the screening of dredged sediment proposed for marine disposal, and international sediment quality guidelines (SQGs). In the laboratory, F. candida was exposed to 0, 50, 75 and 100% of the sediment samples for 28 days at 20 °C. Sediments were variably contaminated with Cr, with the Namahadi River middle site having the highest concentration (569 mg.kg−1, dry weight) followed by the lower site on the Elands River (529 mg.kg−1, dry weight), both above the recommended prohibition level of 500 mg Cr.kg−1. According to the consensus-based SQGs, only the concentrations of Cr and Ni (upper reach of Metsi-Matsho River) were higher than probable effect concentration, denoting that harmful effects of those metals are likely to occur. Of the two endpoints assessed, reproduction was the most sensitive with the upper reach of the Metsi-Matsho River (half maximal effective concentration, EC50 = 24% sediment) being the most deleterious site to the reproduction of F. candida. Ecotoxicological bioassays using F. candida could be suitable complements to chemical analysis in the assessment of the ecological risks of freshwater sediments as this collembolan species is sensitive to sediments with variable ranges of metal contamination.

Swellable Microneedle-coupled Light-addressable Photoelectrochemical Sensor for In-situ Tracking of Multiple Pesticides Pollution In Vivo

In vivo monitoring of multiple pesticide contamination is of great significance for evaluating the health risks of different pesticides, agricultural production safety, and ecological and environmental assessment. Here, we report a hydrogel microneedle array coupled light-addressable photoelectrochemical sensor for tracking multiple pesticide uptake and elimination in living animals and plants, holding three prominent merits: i) enables in-situ detection of in vivo pesticides, avoiding cumbersome and complex sample transportation and handling processes; ii) allows repeated in vivo sampling of the same organism, improving tracking test controllability and accuracy; iii) avoids lethal sampling, providing a better understanding of the pesticides fate in living organisms. The coupled sensor is mechanically robust for withstanding more than 0.35N per needle and highly swellable (800%) for timely extraction of sufficient in vivo solution for analysis. For proof-of-concept, it achieves in-situ detection of atrazine, acetamiprid, and carbendazim efficiently and quantitatively in artificial agarose skin models, mouse skin interstitial fluids, and plant leaves with little inflammatory reaction. This simple, highly integrated, minimally invasive, and high-throughput in vivo monitoring method is ideal for future field environmental monitoring and plant and animal disease diagnosis. Environmental implicationMost of the used pesticide contaminants can be enriched in plants and animals through various pathways and eventually enter the human body to cause various chronic or acute diseases. Therefore, the development of sensing technologies capable of in-situ tracking of the uptake and elimination of pesticides in vivo is essential to fully assess their environmental and ecological risks. Herein we demonstrate a hydrogel microneedle array coupled-photoelectrochemical sensor for light-addressable and direct in-situ monitoring of multiple pesticides in living animals and plants, which not only avoids complex environmental sample preprocessing processes but also provides timely feedback on environmental quality issues.

Variable Shape Tooling for Composite Manufacturing: A Systematic Review

The choice of material, manufacturing process, and molding tool significantly affects the quality, environmental impact, and cost efficiency of composite components. Producing one-piece hollow profiles with smooth inner surfaces and undercuts presents major challenges for conventional mold concepts. There is yet no thorough review of shape-variable mandrels in composite manufacturing to be found in the literature. This paper provides an overview of research on shape memory polymers and other shape-variable materials used in tooling applications for composite manufacturing. This work covers shape memory, heat shrink, and other deformable tooling concepts that enable the production of one-piece Type V pressure vessels, air intake ducts, or curved struts and tubes. A systematic literature review in combination with a state-of-the-art open-source active learning tool ASReview is conducted. Fifteen relevant studies were identified. Research on shape-variable tooling is mainly conducted by three research groups in the USA and the PRC. The tooling is mostly made of unreinforced thermosets, especially styrene-based ones. Thermoplastic resins are less common, and reinforcements limit the usable elongation in the temporary shape. The shape variability is either a shape memory and/or a softening process, which, in all studies, is activated by heating. Release agents are widely used to ease demolding. No ecological or economical assessment of the manufacturing methods was conducted in the reviewed studies. Three fields for further research that could be identified are as follows: (1) thorough ecological end economical assessment of shape-variable mandrels in comparison with conventional tooling; (2) thermoplastic shape memory polymer mandrels; and (3) further investigation of simulation capabilities for shape memory mandrels.

Ecological Safety Assessment and Convergence of Resource-Based Cities in the Yellow River Basin

Promoting the sustainable development of resource-based cities is of great significance for the ecological protection and high-quality development of the Yellow River Basin. In order to solve the dilemma of the sustainable development of resource-based cities in the Yellow River Basin, this paper constructs an ecological security evaluation system. It calculates the ecological security level of 30 resource-based cities in the Yellow River Basin from 2006 to 2020 using the TOPSIS model and carries out a classification convergence analysis. The DID empirical test of ecological security factors by sustainable development planning policies is used to distinguish the development characteristics of different resource-based cities. The results show that (1) the ecological security level of resource cities in the Yellow River Basin is generally well developed, and there are differences between different types of resource cities; (2) the resource cities in the Yellow River Basin mainly rely on industrial transformation to improve the ecological security level; and (3) the local governments pay limited attention to environmental protection.

Assessment Of Remote Sensing Approach For Urban Ecological Quality Evaluation In Pekanbaru City, Riau Province Indonesia

There are obstacles in estimating environmental dynamics behind its convenience, beginning with the development of effective policies for sustainable urban development. The objectives of this research were to comprehend the ability and performance of ecological indices integration and to identify the spatial distribution of changes from 2018 to 2021 in Pekanbaru City, Riau province, Indonesia. This study employed remote sensing data to create ecological parameters including the build-up index, vegetation index, soil index, and moisture index, as well as principal component analysis to generate ecological index integration. The findings indicate a correlation of over 90% among these parameters from 2018 to 2021. Overall, there has been a significant decrease in the ecological quality index’s high-quality categories, such as good and excellent, covering a total of 19.6% over 127 km². Conversely, the poor ecological quality category increased to 2.2%, encompassing an area of 15 km², up from the initial 21.2% covering 122 km². Additionally, the fair and moderate categories also experienced increases of 4% and 13.4%, respectively, reaching 28 km² and 84 km². The study area’s ecological quality is largely affected by increased anthropogenic activities, leading to a drastic decrease in the presence of ecological quality in the good and excellent categories. The importance of spatial planning is emphasized to incorporate aspects of ecological assessment rather than solely focusing on increasing economic activity. This outcome can be used to respond to the concept of sustainable development by caring for the ecological environment, particularly in urban areas, and mitigating ecological damage.

Underestimations of the income-based ecological footprint inequality

Previous research has demonstrated that the wealthy harm the environment to a much greater extent than those with lesser means. According to recent estimates, the wealthiest 1% of the world’s population emit 50% more CO2 than the bottom half of the income distribution. The reason for this inequality is clear: affluence boosts consumption, which in turn increases the ecological footprint. Although the phenomenon seems intuitive, little is known as to whether the layperson notices it. The current study assesses the extent to which individuals recognize or fail to notice such massive ecological footprint inequality and why misperceptions may arise. Across four preregistered studies (N = 1,188) conducted in a highly unequal socio-economic environment (Brazil), we show that people often fail to accurately perceive the meaningful ecological footprint inequality that surrounds them. These misperceptions are explained by people’s (a) failure to properly incorporate the impact of income-based differences in consumption in their ecological footprint assessments and (b) tendency to associate wealth with superior environmental education, greater resources to act sustainably, and better local infrastructure (e.g., cleaner paved streets and proper waste collection). Emphasizing the lack of infrastructure in deprived neighborhoods further exacerbates the misperceptions, whereas highlighting key differences in consumption habits across the socio-economic spectrum increases accuracy. This research, thus, identifies the factors that magnify existing misperceptions in ecological footprint inequality and provides avenues for policymakers to reduce such mistakes.

Spatial-temporal characteristics analysis and ecological environment quality evaluation of forest health care bases in Yunnan, Guizhou and Sichuan provinces

As the forest health care in China is still in the early stage of development, the construction standards of forest health care base are not unified yet, resulting in large differences in the evaluation criterion for the ecological environment of forest health care bases. So, it is urgent to develop a new forest health care ecological environment quality assessment method. Yunnan, Guizhou and Sichuan provinces of China were selected as the study area, the previous 6 batches of 165 national forest health care pilot construction bases were selected as the main data source. This study explored the spatial and temporal distribution characteristics of forest health care bases in the study area using standard deviation ellipses, kernel density estimation method and cold and hot spot analysis. Furthermore, this study evaluated the ecological environment quality of the forest health care bases with a new ecological environment quality evaluation index model, which assembled Fraction Vegetation Coverage(FVC), Wetness(WET), Evapotranspiration(ET), Land Surface Temperature(LST) and Normalized Difference Bare Soil Index(NDBSI). The results are as follows: (1) the forest health bases in the study area are mainly located by the east of the Hu Line with a northeast-southwest distribution direction characteristics, and gradually expanded into a shape of "high in the east and low in the west, multi-point development". (2) the area with ecological environment quality in excellent, good and medium grade accounts for about 87.73% in the study area, indicating that most of the study area is suitable for the construction of forest health care base. These results can provide a practical guidance for the further rational layout and balanced development of forest health care bases in the study area.

Sorbus L. Genus Representatives in the Landscape Design of Kyiv: Dendrological Characteristics and Prospects for Use

The purpose of the study is to summarise information on the systematic position of the genus Sorbus L. and historical aspects of its selection in the context of plant ornamentation; to assess the prerequisites for the introduction of representatives of the genus Sorbus L. into the landscape design of Kyiv based on the analysis of the foreign experience of their use, ornamentation and biological and ecological sustainability throughout the growing season. Research methods. The key role in the study is played by the methods of field survey, monitoring, typological, descriptive and factual, comparative and historical, formal and compositional, and art historical. The methods of observation, analysis, forecasting, generalisation and explanation contributed to the research results and the generalisation of the findings. The scientific novelty lies in the analysis of the prerequisites for the introduction of the genus Sorbus L. representatives into the landscape design of Kyiv, based on the generalisation of foreign experience of their distribution and cultivation; morphological features clarification that determines decorative effect; biological and ecological sustainability assessment throughout the growing season, taking into account current environmental factors and the level of the urban environment urbanisation. The practical significance of the conducted research is confirmed by the list of the genus Sorbus L. representatives recommended for the enrichment of the ornamental plants’ taxonomic composition and implementation in the landscape design of Kyiv. Conclusions. Today, biodiversity conservation and the improvement of the green space system are becoming increasingly important due to changes in environmental factors and an increased anthropogenic load as a result of urban expansion and building densification. The conducted studies of the Sorbus L. genus allow us to state their suitability and prospects for use in the landscape design of Kyiv, which is justified by their high decorative effect (general and seasonal) and biological and ecological sustainability.

Exploring fish communities in the mud volcano polluted river using environmental DNA metabarcoding

In ecosystems subjected to environmental disturbances such as mud volcanoes, understanding the dynamics of fish communities is essential for ecological assessment and conservation. This study employs environmental DNA (eDNA) metabarcoding for the first time to explore fish communities within a challenging and unique environment—a mud volcano-polluted river. High-throughput sequencing was utilized to assess alpha and beta diversity, revealing distinct patterns in fish community composition in response to mud discharge activity. The results indicate that affected sites exhibit remarkably different communities during active and inactive mud discharge, with the impact extending downstream to the river mouth. Notably, the application of eDNA metabarcoding identified a vulnerable species, Rasbora lateristriata, emphasizing its utility in detecting high-risk species. Despite challenges in species identification and reference databases, the use of longer 16S rRNA fragments offered enhanced taxonomic resolution and interspecific sequence variation. This approach showcases the potential of eDNA metabarcoding in assessing fish diversity and community dynamics in polluted aquatic ecosystems, emphasizing its significance in biodiversity surveys and ecological monitoring. The study underscores the value of eDNA metabarcoding as an efficient and comprehensive tool for studying freshwater ecosystems and highlights the need for expanding reference databases to address genetic coverage gaps, particularly in less-studied environments.

Ecological Assessment of the Meadow Phytocoenoses in the Southern Part of Sakhalin

Ecological Assessment of the Meadow Phytocoenoses in the Southern Part of Sakhalin

Evaluating suitability of development and construction with of minimum cumulative resistance model for a mountain scenic area in Jinyun Xiandu, China

Owing to the intricate nature of the ecological environment and spatial complexity, effectively mitigating over-exploitation and ecological harm poses a challenge during the development and construction of mountain scenic areas. Ttraditional ecological sensitivity assessment employed in mountain scenic areas mainly focuses on ecological protection, neglecting the dynamic interplay between ecology and the evolution of construction land.Taking Xiandu mountain scenic area, a representative mountainous development zone in Jinyun County, Lishui City, Zhejiang Province, China, as a study area, this study employs the minimum cumulative resistance model (MCR) to simulate the resistance encountered by ecological sources and construction activities during the expansion process. The study establishes an evaluation framework for development in mountain scenic areas, considering ecological processes both vertically and horizontally. Quantitative analyses are performed through ArcGIS and the analytic network process (ANP) to delineate development adaptability zones in the mountain scenic area. The study utilizes grid mutation points to determine the zoning threshold for development suitability in mountain scenic areas, resulting in the categorization of these areas into four distinct types of development zones: most appropriate for construction, suitable for construction, not suitable for construction, and least suitable for construction.The partition result shows that the most appropriate construction area constitutes 6.68% of the primary scenic area, while the suitable construction zone occupies 40.64% of the main scenic expanse.The study can expand the application area of the MCR model, and the evaluation framework can augment the accuracy and breadth for future mountain scenic area development researches.

Enhancing the MSPA Method to Incorporate Ecological Sensitivity: Construction of Ecological Security Patterns in Harbin City

China’s urban development has reached a stage where green sustainable development must be considered. Constructing an ecological security pattern (ESP) can effectively contribute to maintaining sustainable development and ecological safety in a city. Harbin, a significant city in northeastern China, serves as the study area with a focus on its urban central district. To construct and optimize Harbin’s ESP, this study utilized ecological sensitivity assessment, MSPA (morphological spatial pattern analysis), the gravity model, landscape connectivity assessment, and the MCR (minimum cumulative resistance) model to identify source areas, corridors, and nodes. Research reveals that there are 23 ecological source areas within the study area, primarily situated along the Songhua River and in the mountain woodlands of the A-cheng District. This study identified 48 corridors, predominantly situated in the Daowai District, A-cheng District, and the eastern part of Xiangfang District. Among these, 8 are deemed significant ecological corridors, along with 10 important connecting corridors. We propose the structure of ecological security pattern optimization, referred to as the “two axes, two belts, and four areas”, and present corresponding ecological management recommendations. The analytical framework provides a valuable method for constructing ecological security patterns and selecting source areas at the regional scale in Harbin City, particularly in complex plain urban areas.

Аналіз стану умов відтворення аборигенних іхтіопопуляцій Стир-Горинського гідроекологічного коридору на території Західного Полісся України

Purpose. To investigate the state of reproduction conditions, current and in dynamics since 1922, for native ichthyopopulations (NI) of the Styr-Horyn Hydroecological Corridor (HEC) on the territory of the Western Polissiya of Ukraine. Methodology. The Styr-Horyn HEC was studied according to the following parameters: hydrological regime and duration of water stay on the floodplain; state of the basin surface; speed of channel flow; amount of water exchange; quality of aquatic environment; natural-temporal changes of the channel, floodplains, tributary network; number of ecotones; qualitative and quantitative characteristics of fish juveniles. The hydrological regime was studied using the analysis of runoff hydrographs located in the Volyn, Rivne, and Zhytomyr regions starting from 1922. To assess water quality, KND No. 211.1.4.010-94, “Methodology of ecological assessment of surface water quality by relevant categories”, SOU – 05.01.37-385: 2006, was used. Ichthyological studies were carried out in the field and laboratory according to standard methods with the use of identification keys primarily using the data of test catches and the classification of V. G. Nikolskyi. Statistical and mathematical analysis was performed using the Delfi programming language, relevant computer programs (Mathcad, Excel, Xara) and formulas, including authors’ ones. Findings. An analysis of the Styr-Horyn HEC was carried out on the basis of restorative ichthyoecology using the basin principle and riskology approaches. The hydroecological and ichthyoecological factors affecting the reproduction of NI were studied. The natural fish reproduction localities (NFRL) in this region have been identified. Originality. For the first time, a comprehensive analysis of the state of the reproduction conditions of the Styr-Horyn HEC on the territory of the Western Polissiya of Ukraine was carried out starting from 1922. In addition, a prognostic assessment of the NFRL of this HEC on the territory of Ukraine has been provided. Practical value. The conducted studies are already successfully used in the work of higher educational institutions of Ukraine in the field of training “Aquatic bioresources and aquaculture”.In addition, they are used by fish protection authorities in several regions of Ukraine, in particular for certification of wintering grounds. In the future, their implementation is planned at the level of the national environmental protection policy and in the preparation of regulatory documents regarding the determination of the damage caused and the extent of the damage. Keywords: Pripyat River, Horyn River, Styr River, hydroecology, ichthyoecology, Western Polissiya, hydroecological corridor, natural fish reproduction localities, spawning grounds, wintering grounds, fish migrations, native ichthyofauna.

Ecological Assessment and Ecological Space Optimization of Landform Landscape in the Middle and Lower Reaches of the Yellow River

Ecological Assessment and Ecological Space Optimization of Landform Landscape in the Middle and Lower Reaches of the Yellow River