인문학
사회과학
자연과학
공학
의약학
농수해양학
예술체육학
복합학
지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
초록·키워드
To estimate the current significance of the area for fish breeding, the species composition and abundance of young-of-the-year of the coastal zone of the Volga-Sviyazhsky area of the Volga stretch of the Kuibyshev reservoir for 2021, 2022 were considered. The work to assess the species composition and abundance of the young fish was carried out at 7 coastal stations, at depths less than 2 meters. The number of young-of-the-year was calculated per unit of effort of the fingerling seine. Species diversity was assessed using the Shannon-Weaver index. Young of 23 fish species were identified, which confirms the reproduction of these species in the study area. Observational data are compared with earlier materials from 1993-2020. A trend towards an increase in the relative abundance and the species diversity of the young of fish, mainly due to low-value species, was noted. At the same time, in 2022, a relatively high abundance of the young, the main commercial species of the reservoir, the bream, was revealed.
인공지능 문자 인식 모델을 통해 추출된 텍스트로, 일부 오타나 오류가 포함될 수 있으나 지속적으로 개선 중입니다.
오류를 발견하셨다면 해당 부분을 드래그한 후 ' 를 통해 신고해주세요.
오류를 발견하셨다면 해당 부분을 드래그한 후 ' 를 통해 신고해주세요.