Spatial distribution of small phytoplankton composition in the Chukchi Sea

This study was conducted as part of the second Russian American long-term census of the Arctic in 2009 with sampling across the territorial of the Russian Federation in the Chukchi Sea since recent information regarding the standing stocks of pico- and nano-plankton is very limited. Using flow cytom...

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Bibliographic Details
Published in:Polar Biology
Main Authors: Lee, SH, Dahms, HU, Kim, Y, Choy, EJ, Kang, SH, Kang, CK
Other Authors: 창의IT융합공학과, 10098613
Format: Article in Journal/Newspaper
Language:English
Published: SPRINGER 2014
Subjects:
Phytoplankton
RUSALCA
Flow cytometry
Chukchi Sea
Prochlorococcus
Synechococcus
NUCLEIC-ACID CONTENT
CENTRAL ARCTIC-OCEAN
UPPER WATER COLUMN
MIXOTROPHIC NANOPLANKTON
BACTERIAL ABUNDANCE
COMMUNITY STRUCTURE
FLOW-CYTOMETRY
ATLANTIC-OCEAN
PACIFIC-OCEAN
BERING SEA
ARCTIC-OCEAN
FOOD WEBS
DYNAMICS
Arctic
Arctic Ocean
Bering Sea
Pacific
Chukchi
Polar Biology
Online Access:https://oasis.postech.ac.kr/handle/2014.oak/15173
https://doi.org/10.1007/S00300-013-1413-6
Description
Summary:This study was conducted as part of the second Russian American long-term census of the Arctic in 2009 with sampling across the territorial of the Russian Federation in the Chukchi Sea since recent information regarding the standing stocks of pico- and nano-plankton is very limited. Using flow cytometry, small size fractions of the phytoplankton (< 20 mu m) obtained during the cruise were analyzed for the contributions of pico- and nano-eukaryotic phytoplankton and prokaryotic phytoplankton for the first time in the Chukchi Sea. The salinity and temperature in the southern part were significantly higher than those in the northern part of the Chukchi Sea. The abundance of Prochlorococcus and Synechococcus represented about 30 % of total small phytoplankton cells with their cell abundances reaching 295 and 590 cells ml(-1), respectively, although a significant portion (about 70 %) of the small phytoplankton community (< 20 mu m) was pico- and nano-eukaryotic plankton in the Chukchi Sea. Among different environmental factors, we found that temperature and NH4 concentrations were significantly positively correlated with the abundance of total phytoplankton, pico- and nano-eukaryotes, Prochlorococcus, and Synechococcus. Projected higher water temperature and increase in NH4 concentration condition in the Arctic Ocean as well as the Chukchi Sea could have fostered more small phytoplankton communities especially Prochlorococcus and Synechococcus. X 1 1 4 4 scie scopus

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