scholarly journals Internal Water Bodies Use for Solution of Social Problems of the Morozovsk Rayon Population

2011 ◽  
pp. 20-27
Author(s):  
Keyword(s):  
Rural Population ◽  
Social Problems ◽  
Rostov Oblast ◽  
Water Bodies ◽  
Fish Food ◽  
Fish Breeding ◽  
Physical Chemical ◽  
Internal Water ◽  
Food Commodities ◽  
New Jobs

Biological, physical/chemical, and sanitary/hygienic investigation and mapping of internal water bodies (ponds) of Rostov Oblast Morozovsk Rayon have been carried out in order to promote development of pond fish-breeding, production of competitive fish food commodities and safe recreation of population, as well as establishment of new jobs for the rayon rural population and development of tourism.

The role of aquatic macrophytes in microhabitatual transformation of physical-chemical features of small water bodies

Hydrobiologia ◽  
2007 ◽  
Vol 584 (1) ◽  
pp. 101-109 ◽  
Author(s):  
Tomasz Joniak ◽  
Natalia Kuczyńska-Kippen ◽  
Barbara Nagengast
Keyword(s):  
Aquatic Macrophytes ◽  
Water Bodies ◽  
Small Water ◽  
Physical Chemical ◽  
Small Water Bodies

scholarly journals KARAKTERISTIKHABITATDANBIOLOGI IKANMUJAER (Oreochromismossambicus) DI DANAURANAU, SUMATERASELATAN

2017 ◽  
Vol 3 (5) ◽  
pp. 287
Author(s):  
Samuel Samuel ◽  
Subagja Subagja
Keyword(s):  
Water Pollution ◽  
Chemical Properties ◽  
Oreochromis Mossambicus ◽  
Quality Parameters ◽  
Fish Analysis ◽  
Female Fish ◽  
Pollution Levels ◽  
Weight Growth ◽  
Fish Breeding ◽  
Physical Chemical

Penelitian tentang karakteristik habitat dan biologi ikan mujaer (Oreochromis mossambicus) telah dilakukan di Danau Ranau pada bulan September dan Oktober 2009. Hasil penelitian terhadap beberapa parameter kualitas air pada lima stasiun penelitian, menunjukkan bahwa sifat fisika, kimia, dan biologi perairan ideal untuk mendukung kehidupan dan perkembangbiakkan ikan. Danau Ranau dapat digolongkan sebagai perairan subur dengan tingkatan meso eutrofik dan tingkat pencemaran air dalam kategori tidak tercemar sampai tercemar ringan. Ikan mujaer mempunyai sifat pertumbuhan isometrik di mana kecepatan pertumbuhan panjang sebanding dengan kecepatan pertumbuhan bobot dan termasuk jenis ikan omnivor.Analisis aspek reproduksi ikan menunjukkan pemijahan lebih dari satu kali dalam setahun dengan musim pemijahan terjadi pada bulan Oktober sampai Desember. Ukuranpertama kali matang gonad untuk ikan betina berkisar antara 19,14-19,66 cm panjang total dan terjadi pada bulan September dan Oktober. Research on habitat and biological characteristics of java tilapia (Oreochromis mossambicus) have been carried out in the Ranau Lake in September and October 2009. The result investigations of several water quality parameters at 5 research stations, showed that the physical, chemical properties, and biology of waters were still ideal for supporting life and fish breeding. Ranau Lake can be classified as productive waters by the level of meso eutrophic and water pollution levels in uncontaminated category until lightly polluted. Java tilapia fish had the nature of isometric growth in which growth velocity was proportional to the length and weight growth rate and included the type of omnivor fish. Analysis of the reproductive aspects showed that the spawning fish was more than once a year with the spawning season occured in October until December. The first gonado maturity size of female fish ranged between 19.14-19.66 cm total length and occured in September and October.

scholarly journals Restoration of the disturbed natural hydrological regime of the fish-breeding channel Kazachy Yerik within the framework of fishery reclamation

2021 ◽  
Vol 273 ◽  
pp. 03007
Author(s):  
Dmitry Larin ◽  
Evgeny Mikhaylov ◽  
Elena Staseva
Keyword(s):  
Aquatic Ecosystems ◽  
Hydrological Regime ◽  
Aquatic Organisms ◽  
Water Bodies ◽  
Small Rivers ◽  
Commercial Fish ◽  
Fish Breeding ◽  
Channel Water ◽  
Fish Industry ◽  
Economic Use

Intensive economic use of small rivers and channel water bodies leads to their pollution and siltation. The anthropogenic impact on aquatic ecosystems negatively affects the state of the fish industry, which leads to a reduction in the spawning fund, deterioration of the conditions for reproduction and survival of juveniles. Violation of the existing conditions for the habitat and reproduction of aquatic organisms leads to a decrease in the productivity of water bodies and the loss of their fishery value. The inflow from the catchment area of solid and liquid runoff containing organic matter, oil products and other impurities of anthropogenic and technogenic origin leads to irreversible entry, siltation and shallowing of small rivers and channel water bodies. The restoration of the disturbed hydrological regime of water bodies by means of reclamation works contributes to the restoration of natural spawning grounds for commercial fish species, an increase in yield and productivity.

scholarly journals Poverty as the main factor in the decline in the quality of life and its impact on the environment

2021 ◽  
Vol 258 ◽  
pp. 07052
Author(s):  
Svetlana Kuznetsova ◽  
Margarita Voytyuk ◽  
Tatiana Marinchenko ◽  
Vyacheslav Voytyuk ◽  
Sofia Sypok
Keyword(s):  
Quality Of Life ◽  
Russian Federation ◽  
Low Income ◽  
Rural Areas ◽  
Rural Population ◽  
Social Problems ◽  
Poverty Level ◽  
The Russian Federation ◽  
Main Factor

In recent years, the number of unemployed persons, low-income families, refugees and families in difficult life situations has increased, which has led to a decrease in the standard of living. The paper is devoted to the problem of poverty in the aspect of the analysis of rural areas and the quality of life of the rural population. The population of rural areas is more vulnerable and often lacks the factors necessary to improve the quality of life. Social problems in rural areas and factors of decreasing the quality of life and their consequences are shown. The analysis has showed that the main source of income for the able-bodied rural population is labor activity, including personal subsidiary farming. The poverty rate varies across the constituent entities of the Russian Federation from 3.8% to 43.3%. In general, the poverty level increased by 38% of the total number of constituent entities of the Russian Federation in 2019.Despite the relative progress in solving social problems in rural areas in recent years, including that thanks to the implementation of measures of state programs, the quality of life of the rural population not only remains low level, but also tend to decrease. In this regard, the study of poverty as the main factor in reducing the quality of life of the rural population becomes relevant. In order to solve more effective the poverty problems, it is necessary to revise the principles of budgeting at different levels and introduce tools that have shown high efficiency in foreign countries.

scholarly journals Fishing gear and devices for catching fish from fish ponds

2020 ◽  
Vol 2020 (2) ◽  
pp. 75-81
Author(s):  
Dmitriy Alekseevich Kostrykin
Keyword(s):  
Fish Farming ◽  
Water Bodies ◽  
Fishing Gear ◽  
Fish Production ◽  
Fish Ponds ◽  
Biological Resources ◽  
Fish Breeding ◽  
Fishing Gears ◽  
Freshwater Bodies ◽  
Time Of Year

The article is focused on the problems of protection of biological resources and their habitats, the construction of new and improvement of existing fish breeding enterprises, the introduction of modern automation and mechanization of the most labor-intensive stages in the production of fish is a set of priority measures for the development of fish farming aimed at increasing fish production in inland freshwater bodies. Harvesting the fish ponds, regardless of their category, is a difficult and energy-intensive process. Choosing the type of fishing gear and fishing methods used to catch fish ponds primarily depends on the type of reservoir, the state of its hydraulic char-acteristics, as well as the type of fish caught and the time of year. The main categories of water bodies by the method of fish fishing and their features are considered. The used fishing gears are divided into 3 groups according to the principle of fish retention: entangling nets, strainers and sta-tionary gears (traps). It is noted that when fishing in the ponds, it is necessary to take into account the behavior and distribution of the fish. The effective methods for catching pond fish with different fishing gear are presented. The choice of the optimal fishing gear or device for fishing ponds will allow you to clearly plan and coordinate the work of the enterprise, since pond fishing is carried out in the shortest possible time, depending on the timing and needs of the market.

Coastal complex for growing fish planting material for stocking high-eftrophic reservoirs (on the example of the Veselovsky reservoir on the Western Manych River)

2021 ◽  
pp. 68-79
Author(s):  
Viktor Nikolaevich Shkura ◽  
Alexey Viktorovich Shevchenko
Keyword(s):  
Water Bodies ◽  
Natural Food ◽  
Climatic Zones ◽  
Fish Hatchery ◽  
Planting Material ◽  
Fish Breeding ◽  
Eutrophic Water ◽  
Chemical Conditions ◽  
Inland Water Bodies ◽  
Physical And Chemical

The purpose of the study is to substantiate the creation and use of drivedriven fish-breeding and reclamation complexes that provide fish-breeding development and biological reclamation of eutrophic water bodies (reservoirs and lakes). The need to create drive-storage fish-breeding and reclamation complexes is determined by the need to involve eutrophied inland water bodies in the fisheries turnover and conduct environmental improvement. One of the typical arid natural-climatic zones is the Veselovsky reservoir on the Western Manych River, the survey of which established the need to clean it from excess vegetation. The measures carried out on the reservoir for the introduction of herbivorous fish do not give results and do not lead to the expected reclamation effect. The main disadvantages of the applied technologies of fish-breeding activities at the reservoir are the use of fish-planting material that is not adapted to the conditions of the stocked water body, as well as a number of technological disadvantages of various processes. To eliminate them, it is proposed to organize the Veselovsky fish-breeding and reclamation complex, which includes a fish hatchery located directly next to it, providing the cultivation of fish-planting material adapted to the conditions of the stocked reservoir using non-contact technology of cultivation and stocking with technical means, and carrying out acclimatization measures. The structure of the fish hatchery provides for the construction of a cascade of outgrowth pools with regulated conditions of the aquatic environment and food regime. The different-height arrangement of fish-breeding pools on the slope section allows for non-contact intra-complex movement of fish and the release of fish-planting material into the acclimatization bay of the stocked reservoir. The maintenance system provides for the gradual rearing of young fish in fish-breeding pools with the most close to the conditions of the stocked reservoir physical and chemical conditions of the habitat and a different ratio in the diet of hydrobionts of artificial and natural food.

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