The current state of the plankton community in the waters of western part of the Bering Sea and the adjacent waters of the Pacific Ocean
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Date
2018
Metadata
Show full item recordAlternative Title
Современное состояние планктонного сообщества в западной части Берингова моря и прилегающих водах Тихого океанаAbstract
In August–September 2017, the state of the plankton community was monitored in the western part of the Bering Sea and the adjacent waters of the Pacific Ocean in connection with the resumption of mass feeding migrations of salmonidae. The basis of zooplankton biomass in the period of research was a fraction of large individuals, 65–84 %; the fraction of small individuals amounted to 5–15 %, and of average-sized ones — to 11–20 %. The dominant groups in the large-sized fraction of zooplankton were copepods (Neocalanus plumchrus, Eucalanus bungii), chaetognatha (Sagitta elegans) and Coelenterata (Aglantha digitale). The total stock of plankton in the 50–0 m layer was 23.84 thousand tons, in the 200–0 m layer — 46.3 thousand tons. The high biomass of zooplankton in the investigated area indicates favorable conditions for feeding salmonidae.В августе–сентябре 2017 г. в водах западной части Берингова моря и прилегающей части Тихого океана был проведен мониторинг состояния планктонного сообщества в период нагула и миграций тихоокеанских лососей. Основу биомассы зоопланктона формировала крупная фракция — 65–84 %; мелкая и средняя фракции составляли, соответственно, 5–15 и 11–20 %. Доминирующими видами были копеподы: Neocalanus plumchrus и Eucalanus bungii, щетинкочелюстные Sagitta elegans, кишечнополостные Aglantha digitale. Общий запас зоопланктона в слое 50–0 м оценен в 23, 84 тыс. т, в слое 200–0 м — в 46,1 тыс. т.
Pages
pp.386-390Publisher or University
Azov Sea Research Fisheries Institute (AzNIIRKH)Conference Name
Current issues of fisheries, fish breeding (aquaculture), and ecological monitoring of aquatic ecosystemsConference Location
Rostov-on-Don, RussiaConference Date
11-12 December 2018