Influence of amateur and recreational fishing on the state of the aquatic biological resources in the Tsimlyansk Reservoir
Amateur fishing with recreational purposes is one of the most popular types of recreation for the population at the inland freshwater bodies of our country, and the development of recreational fishing is one of the important tasks, which fishing industry currently faces. At the same time, uncontrolled fishing or harvesting of aquatic biological resources by amateur fishers can lead to extremely negative consequences for the their exploited stocks and for the ecological state of the water body. This paper presents the results of studies on the impact of amateur and recreational fishing on aquatic biological resources of the Tsimlyansk Reservoir within the boundaries of the Volgograd Region carried out in 2019. Based on visual observations and direct survey, the number of amateur fishermen who visited the Tsimlyansk Reservoir during the entire period of observation has been assessed. According to the estimated data, the amateur fishermen's total catch, as well as the average catch per a fisherman have been determined. The most visited sites where the highest density of amateur fishers was observed have been identified; the main targets of amateur and recreational fishing have been determined, and their main biological characteristics such as size and body weight have been investigated; catch intensity in relation to the species of aquatic biological organisms has been determined by calculation methods; the annual yield of aquatic biological resources by species has been estimated. In total, the analysis of 7774 fish specimens has been performed in the course of the work. In the catches of amateur fishermen, 17 species of fish have been recorded, namely: zander, Volga zander, Northern pike, silver bream, asp, Prussian carp, common bream, European perch, roach, European carp, blue bream (zope), wels catfish, ide, goby, white-eye bream, common rudd, and common bleak. It has been found that 39.6 % of zander, 90.8 % of common bream, 89.5 % of European carp, 57.7 % of wels catfish and 75 % of ide individuals out of the total number of examined specimens of the corresponding species were smaller than the minimum landing size allowed by the Fisheries Regulations for amateur fishing. Based on the analysis of the collected data, an assessment of the extent of the impact that amateur and recreational fishing exerts on the aquatic biological resources in the Tsimlyansk Reservoir has been made. Thus, the catch of amateur fishermen in 2019 in the Tsimlyansk Reservoir within the boundaries of the Volgograd Region is estimated at 104.3 tons, 51.3 tons of which are accounted for by such a valuable commercial species as zander.
| Main Authors: | , , , |
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| Other Authors: | |
| Format: | Journal Contribution biblioteca |
| Language: | Russian |
| Published: |
2020
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| Subjects: | Recreational fishing, Common bream, European carp, Aquatic living resources, Landings, Commercial species, Amateur fishing, Catfish, Zander, Exploited resources, Промысловые виды, Рекреационное рыболовство, Судак, Густера, Любительский лов, Жерех, Карась, Сом, Плотва, Средний вылов на рыбака, |
| Online Access: | http://hdl.handle.net/1834/17345 |
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