Habaršy - A̋l-Farabi atyndag̣y K̦azak̦ memlekettik ụlttyk̦ universiteti. Biologiâ seriâsy最新文献

{"title":"ICHTHYOLOGICAL RESEARCH IN THE KOKSU RIVER, UZBEKISTAN TO IDENTIFY KEY FISH SPECIES IN THE CONTEXT OF SMALL HYDROPOWER DEVELOPMENT","authors":"E.B. Karimov","doi":"10.26577/eb.2023.v96.i3.011","DOIUrl":"https://doi.org/10.26577/eb.2023.v96.i3.011","url":null,"abstract":"The study of biodiversity in key areas and conservation corridors in the Central Asian mountainous region is becoming increasingly relevant in light of large-scale anthropogenic interventions in the natural environment. Particularly hydropower development leads to habitat alteration and fragmentation, reducing the biodiversity of aquatic organisms. At the same time, science does not have sufficient information about the biogeography of large aquatic organisms such as fish in mountain rivers of Central Asia. This study presents fish ecological data from field surveys conducted in 2021–2022 at Koksu River, Shakhimardan river basin, Uzbekistan. Contrary to statements about the absence of fish from Koksu River, we confirm the presence of two fish species: snow trout (Schizothorax eurystomus Kessler, 1872) and stone loach (Triplophysa ferganaensis Sheraliev and Peng, 2021). Further studies should assess habitat preferences and migration patterns of the discovered fish to support conservation and restoration frameworks.","PeriodicalId":475103,"journal":{"name":"Habaršy - A̋l-Farabi atyndag̣y K̦azak̦ memlekettik ụlttyk̦ universiteti. Biologiâ seriâsy","volume":"19 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135737835","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"DISTRIBUTION FEATURES AND BIOLOGICAL CHARACTERISTICS OF ENDEMIC PLANT OF WESTERN TIEN-SHAN ERANTHIS LONGISTIPITATA","authors":"Zh.E. Aimenova","doi":"10.26577/eb.2023.v96.i3.02","DOIUrl":"https://doi.org/10.26577/eb.2023.v96.i3.02","url":null,"abstract":"The article provides updated data on the distribution of the endemic species E.longistipitata on the territory of the Aksu-Jabagly Reserve. The first population is the Taldy-Bulak Gorge (left bank of the stream); the second population is the Zhetimsai Gorge (left bank of the stream); the third population is the Valley of the Irsu River. Monitoring sites were created for all coenopopulations, the species density was calculated using the method of A.A.Uranov, the species composition was determined. The average density of E. longistipitata species varied from 14 to 22 pcs/2m2. The morphometric characteristics of the detected species growing in 3 different sites have been studied. The population of E.longistipitata growing in the valley of the Irsu River was marked by the maximum indicators (stem height, number of leaves and sepals). The plant community of 3 monitoring sites and the predominant soil type were determined.&nbsp","PeriodicalId":475103,"journal":{"name":"Habaršy - A̋l-Farabi atyndag̣y K̦azak̦ memlekettik ụlttyk̦ universiteti. Biologiâ seriâsy","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135737827","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"ECOSYSTEM SERVICES AND PROBLEMS OF REEDBED MANAGEMENT IN THE ILI RIVER DELTA","authors":"S.T. Nurtazin","doi":"10.26577/eb.2023.v96.i3.013","DOIUrl":"https://doi.org/10.26577/eb.2023.v96.i3.013","url":null,"abstract":"A characteristic feature of wetlands in the Ili River delta is the predominance of common reed (Phragmites australis) in the composition of their plant communities. Reedbeds are ecologically valuable ecosystems that play an important role in the nutrient cycle, carbon sequestration, oxygen production and maintenance of biodiversity. Ecosystems in the Ili delta provide a wide range of ecosystem services and have been used by people for economic purposes for centuries. The main types of ecosystem services of reed wetland communities in the delta were investigated and various options for the management of reed communities were analyzed, the existing complexities and conflict potential between biodiversity conservation and the established economic activities of the local population and visitors were described. Some innovative options for more effective and sustainable use of reed biomass for economic purposes and ways of optimal management of reed cenoses, considering their functional importance for biodiversity, are proposed.","PeriodicalId":475103,"journal":{"name":"Habaršy - A̋l-Farabi atyndag̣y K̦azak̦ memlekettik ụlttyk̦ universiteti. Biologiâ seriâsy","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135737672","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"STUDY OF THE INFLUENCE OF NITRATES AND NITRITES ON EMBRYOGENESIS OF DANIO RERIO","authors":"D.D. Kozhakhmetova","doi":"10.26577/eb.2023.v96.i3.012","DOIUrl":"https://doi.org/10.26577/eb.2023.v96.i3.012","url":null,"abstract":"An increase in the amount of environmental pollution caused by different hazardous elements and anthropogenic pressure complicates and decreases Kazakhstan's natural resources' stable ecological state. According to the Republic of Kazakhstan's bulletin on the state of the environment, the content of calcium and sodium nitrate and nitrite ions in water bodies grew by 13.5 and 7.5%, respectively, in the first half of 2022, indicating that their actual concentration exceeded the background class. At the same time, it was discovered that the level of nitrate and nitrite ions is surpassed not only in aquatic bodies, but also in the Republic of Kazakhstan's atmospheric air and soil. Furthermore, there was a decline in aquatic organism diversification and abundance in the analyzed water bodies, which could be attributed to nitrate-nitrite pollution and harmful effects on juveniles. As a result, the goal of this study was to look at the effects of nitrates and nitrites on Danio Rerio embryogenesis. This object was chosen over others for its lower maintenance expenses, rapid advancement of embryogenesis phases, transparency, and the comparatively small size of the embryos for successful visual observation. Based on our findings, the embryotoxic and teratogenic effects of calcium nitrate and sodium nitrite have been proven, resulting in the death of fish. Calcium nitrate and sodium nitrite at concentrations of 1, 10, and 100 MPC have been demonstrated to cause dose-dependent embryonic death. Furthermore, to a greater extent under the action of sodium nitrite. Teratogenic diseases were discovered in surviving larvae, including edema of the yolk sac and pericardium of the heart, curvature of the skeleton and asymmetry of the body, edema of the retina, and aberrant formation of the organs of the oral cavity. The findings acquired are theoretically and practically important in the fields of ecology, ecotoxicology, and aquatic organism biodiversity protection. They contribute to our understanding of the hazardous effects of naturally occurring nitrates and nitrites, as well as the need to employ Danio rerio embryos and larvae as test objects for bioindication of polluted water bodies.","PeriodicalId":475103,"journal":{"name":"Habaršy - A̋l-Farabi atyndag̣y K̦azak̦ memlekettik ụlttyk̦ universiteti. Biologiâ seriâsy","volume":"96 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135737836","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"GENUS CYTOSPORA Ehrenb. IN THE SOUTH-EAST OF KAZAKHSTAN","authors":"E.V. Rakhimova","doi":"10.26577/eb.2023.v96.i3.04","DOIUrl":"https://doi.org/10.26577/eb.2023.v96.i3.04","url":null,"abstract":"Information about pycnidial fungi of the southeast of Kazakhstan is insufficient and significantly outdated (especially the taxonomy of species), despite the fact that some of them are of great economic importance as parasites of woody plants. Therefore, the aim of our work was to identify species of the genus Cytospora Ehrenb. on the territory of the south-east of Kazakhstan and to analyze data on their distribution and range of host plants. The scientific and practical significance of the work lies in obtaining data on new localities of species of the genus Cytospora, which are of great importance as causative agents of cancer and peptic ulcer disease of woody host plants, leading to the death of tree branches. The material for the article was the authors' own collections carried out in different years, herbarium specimens stored in the herbarium of the Institute of Botany and Phytointroduction, as well as literary data. The preparation of fungi specimens, their study and identification were carried out according to the standard methods. The samples were studied and photographed using a Polyvar photomicroscope with Nomarsky interference optics. An annotated alphabetical list of species is provided with host plants and collection coordinates. Of the genus Cytospora, 43 species were found in the southeast of Kazakhstan. The maximum number of species (26) was found in the foothills of the Zailiysky Alatau, 20 species of Cytospora were noted in the Zailiysky Alatau, 10, 9 and 7 representatives of the genus, respectively, are typical for the mountain ranges of the Dzhungarsky Alatau, Kungei Alatau and Altyn-Emel. In the desert territories of the southeast of Kazakhstan, 8 species were found. Species of the genus Cytospora are found on representatives of vascular plants from 29 families. The largest number of species was recorded on the family Rosaceae Juss. (11 species), Salicaceae Mirb. (7), Betulaceae Gray (4), Fabaceae Lindl. (3 types). The value of the study and its practical significance lies in obtaining data on the location, distribution, and association with the host of Cytospora species.","PeriodicalId":475103,"journal":{"name":"Habaršy - A̋l-Farabi atyndag̣y K̦azak̦ memlekettik ụlttyk̦ universiteti. Biologiâ seriâsy","volume":"58 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135737828","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}