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引用本文:Engelsina A. Erbaeva,Gennadiy P. Safronov.勃拉茨克水库生态监测成果.湖泊科学,1998,10(s1):549-558. DOI:10.18307/1998.sup55
Engelsina A. Erbaeva,Gennadiy P. Safronov.Results of the Bratsk Reservoir Ecosystem Monitoring. J. Lake Sci.1998,10(s1):549-558. DOI:10.18307/1998.sup55
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勃拉茨克水库生态监测成果
Engelsina A. Erbaeva, Gennadiy P. Safronov
Scientific-Research Institute of Biology at State University of Irkutsk, P. O. Box 24. Lenin str. 3, Irkutsk-3, 664003, Russia
摘要:
Regime observations 017 the zoobenthos state in the Balagansk transect in 1971, 1972 and in the Odissa bay in 1987-1993 of the Bratsk Reservoir were conducted.In 1991-1993 there is a change in the zoobenthos structure of the Bratsk Reservoir. In the depth zone of 0-5 m in the Balagansk transect in 1971-1972 the bottom community was considered as Gammaridae-Chiro-nomodae, in 1991 as Gammaridae-Ephemeroptera in 1992-1993 as Chironomidae-Ephemeroptera-Gammaridae. As compared with 1968-1972 the importance of Gammaridae decreased and the role of Ephemeroptera increased in the zoobenthos structure in 1991-1993.
Changes were noted in the species composition of the Ologochaeta fauna and increase of the role of Oligochaeta in the zoobenthos in 1991-1993 as compared with 1965-1972.
During all studies Chironomidae played a significant role in the zoobenthos. Since 1989 Paratanytarsus baialensis, bailialian endemic, has occurred in the Chironomidae fauna.
The comparison of zoobenthos has shown that aver-age number and biomass of bortom invertebrates by 3-6 times and species diversity by 2.25 are higher^ in the Odissa bay than in the Balagansk transect.
关键词:  Bratsk Reservoir  monitoring  zoobenthos
DOI:10.18307/1998.sup55
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Results of the Bratsk Reservoir Ecosystem Monitoring
Engelsina A. Erbaeva, Gennadiy P. Safronov
Scientific-Research Institute of Biology at State University of Irkutsk, P. O. Box 24. Lenin str. 3, Irkutsk-3, 664003, Russia
Abstract:
Regime observations 017 the zoobenthos state in the Balagansk transect in 1971, 1972 and in the Odissa bay in 1987-1993 of the Bratsk Reservoir were conducted.In 1991-1993 there is a change in the zoobenthos structure of the Bratsk Reservoir. In the depth zone of 0-5 m in the Balagansk transect in 1971-1972 the bottom community was considered as Gammaridae-Chiro-nomodae, in 1991 as Gammaridae-Ephemeroptera in 1992-1993 as Chironomidae-Ephemeroptera-Gammaridae. As compared with 1968-1972 the importance of Gammaridae decreased and the role of Ephemeroptera increased in the zoobenthos structure in 1991-1993.
Changes were noted in the species composition of the Ologochaeta fauna and increase of the role of Oligochaeta in the zoobenthos in 1991-1993 as compared with 1965-1972.
During all studies Chironomidae played a significant role in the zoobenthos. Since 1989 Paratanytarsus baialensis, bailialian endemic, has occurred in the Chironomidae fauna.
The comparison of zoobenthos has shown that aver-age number and biomass of bortom invertebrates by 3-6 times and species diversity by 2.25 are higher^ in the Odissa bay than in the Balagansk transect.
Key words:  Bratsk Reservoir  monitoring  zoobenthos
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