Aim. To work out perspective of stable fishing development in Tersko-Caspian fish industrial subregion. Location. Tersko-Caspian subregion. Methods. Analysis of own and literature materials according to the state of reserves and catches of the main food fish species in the region of investigation. Results. Proposals on the main perspective directions of fish industry and also the improvement of thecnoironment of the water biological resources, permilting to increase effectiveness of their natural reproduction of fish are worked out. Main conclusions. In the perspective the organization of sea fishery of common sprat, herrings, grey mullet and aterines in the Russian part of the Middle Caspiy will promote the creation of stable fishery and fish processing production in the region.
Abstract. The aim is to assess the dynamics of the Caspian Sea and its impacts on coastal areas as well as to develop recommendations for economic activity in a highly unstable position of the coastline. Methods. Based on the analysis of scientific sources and our own data on the dynamics of the Caspian Sea, are discussed the possible causes of the unstable regime of the sea level and its impacts on the ecological system of the coastal areas. Results. One of the problems of the Caspian Sea is the problem of sea-level change and predicting such changes. The analysis shows that the level of the Caspian Sea will continue to experience long-term (including thirty-year and secular) fluctuations in the range of absolute marks minus 26 to minus 33 m, which is close to the shoreline as in 1977. Conclusions. We find it possible to prevent the negative effects of level fluctuations, preserve biodiversity and biological resources of the Caspian Sea on condition that during the economic activities in the zone off the coast we
В данной работе изучена растворимость и деструкция сырой нефти в морской воде в условиях Каспийского моря. The solubility and the destruction of crude oil in seawater in conditions of the Caspian sea have been studied.
The article is devoted to the study of the commercial and biological characteristics of the wild goldfish in the coastal sea waters of the Terek-Caspian fisheries subdistrict. The features of the formation of wild goldfish stocks under the influence of natural-climatic and anthropogenic factors in the long-term aspect are shown. It has been revealed that in recent years, the stocks of wild goldfish in the coastal part of the Terek-Caspian fisheries subdistrict are stable and range from 1,210 to 1,950 thousand tons having reached the maximum in 2020. Biological indicators of wild goldfish in the coastal part of the Caspian Sea have been stable in recent years and are not subject to significant fluctuations. The high rate of increase in number and commercial stocks, as well as the expansion of the range of wild goldfish in new areas of habitat in the Caspian basin, is probably due to its competitive advantages - the ability to adapt to adverse environmental conditions.
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