Yu. V. Gerasimov, Yu. I. Solomatin, M. I. Bazarov, O. M. Lapshin, A. I. Tsvetkov
{"title":"Effect of Global Warming on Fish Population Parameters in Upper Volga Reservoirs","authors":"Yu. V. Gerasimov, Yu. I. Solomatin, M. I. Bazarov, O. M. Lapshin, A. I. Tsvetkov","doi":"10.1134/s199508292470024x","DOIUrl":null,"url":null,"abstract":"<h3 data-test=\"abstract-sub-heading\">Abstract</h3><p>As a result of global warming, the average annual water temperature has significantly increased in the Upper Volga reservoirs. Warming and the subsequent deterioration of the oxygen regime has had a significant effect on most of the fish populations inhabiting temperate waters. This has led to changes in the population structure of many fish species. Phenomena such as the disappearance or a sharp decline in the abundance of cold-water species (European smelt, vendace, burbot, and pike) in the Rybinsk Reservoir coincide with the period of warming. The disappearance of European smelt in the Rybinsk Reservoir and the favorable temperature regime has contributed to the appearance and rapid increase in the abundance of a Caspian invader, the Black Sea sprat, which has occupied the empty niche of the European smelt and became the dominant species in the pelagic zone of the Upper Volga reservoirs. Warming has resulted in a decrease in the abundance and the growth rate of burbot and pike. Climate warming has had an indirect effect on many species through oxygen deficiency or the transformation of the forage base (ruff, zander, perch, and roach), which has also led to a decrease in abundance and the growth rate.</p>","PeriodicalId":50359,"journal":{"name":"Inland Water Biology","volume":"13 1","pages":""},"PeriodicalIF":0.8000,"publicationDate":"2024-09-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Inland Water Biology","FirstCategoryId":"99","ListUrlMain":"https://doi.org/10.1134/s199508292470024x","RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"MARINE & FRESHWATER BIOLOGY","Score":null,"Total":0}
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Abstract
As a result of global warming, the average annual water temperature has significantly increased in the Upper Volga reservoirs. Warming and the subsequent deterioration of the oxygen regime has had a significant effect on most of the fish populations inhabiting temperate waters. This has led to changes in the population structure of many fish species. Phenomena such as the disappearance or a sharp decline in the abundance of cold-water species (European smelt, vendace, burbot, and pike) in the Rybinsk Reservoir coincide with the period of warming. The disappearance of European smelt in the Rybinsk Reservoir and the favorable temperature regime has contributed to the appearance and rapid increase in the abundance of a Caspian invader, the Black Sea sprat, which has occupied the empty niche of the European smelt and became the dominant species in the pelagic zone of the Upper Volga reservoirs. Warming has resulted in a decrease in the abundance and the growth rate of burbot and pike. Climate warming has had an indirect effect on many species through oxygen deficiency or the transformation of the forage base (ruff, zander, perch, and roach), which has also led to a decrease in abundance and the growth rate.
期刊介绍：
Inland Water Biology publishes thematic reviews and original papers devoted to flora and fauna in waterbodies, biodiversity of hydrobionts, biology, morphology, systematics, ecology, ethology, ecological physiology and biochemistry of aquatic organisms, patterns of biological cycle, structure and functioning of aquatic ecosystems, anthropogenic and uncontrolled natural impacts on aquatic organisms and ecosystems, invasion of nonindigenous species into ecosystems and their ecology, methods of hydrobiological and ichthyological studies.
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