Phytoplankton communities and size-fractioned chlorophyll a in newly opened summer waters of the central Arctic Ocean

• DOI: 10.3354/meps13001
• Publication Date: 2019-06-03T09:58:47Z
• Authors: Y Wang; Jh Kang; P Xiang; Yy Ye; Hs Lin; M Lin
• Keywords: 01 natural sciences; 0105 earth and related environmental sciences

MEPS Marine Ecology Progress Series Contact the journal Facebook Twitter RSS Mailing List Subscribe to our mailing list via Mailchimp HomeLatest VolumeAbout JournalEditorsTheme Sections 622:67-82 (2019) - DOI: https://doi.org/10.3354/meps13001 Phytoplankton communities and size-fractioned chlorophyll a in newly opened summer waters of central Arctic Ocean Yu Wang*, Jian-hua Kang*, Peng Xiang, You-yin Ye, He-shan Lin, Mao Lin** Laboratory Biology Ecology, Third Institute Oceanography, Ministry Natural Resources, Xiamen 361005, PR China *These authors contributed equally this work**Corresponding author: [e-mail] ABSTRACT: The rapid decline sea ice extent during season has profound implications for pelagic ecosystem. During 4th Chinese National Research Expedition (4th CHINARE) August 2010, snapshot spatial distribution phytoplankton (>10 µm) size-fractionated (chl a) area western (80-86°N) was studied. Potential environmental drivers were linked with community profiles assess influences water masses shrinking. Results indicate that exhibits typical low-nutrient low-chl environment accompanied low diversity abundance. A total 49 taxa belonging 25 genera from 5 classes identified by Utermöhl method, diatoms (Chaetoceros spp., Nitzschia Thalassiosira nordenskiöldii longissima) numerically dominating community. Based on chl contributions, picophytoplankton (<2 most abundant, followed nanophytoplankton (2-20 microphytoplankton (>20 µm). abundance differed significantly between early ice-melting northern Canada Basin, influenced Bering shelf water, near Alpha Ridge, where coverage is thicker. Redundancy analysis Spearman’s correlation suggest salinity, temperature nitrate concentration are major factors influencing a. In addition, irradiance plays an important regulatory role vertical variation a, low-light adapted dominate at bottom euphotic zone. These results support previous studies showing advantage oligotrophic light-limited environments such as Ocean. KEY WORDS: · Size-fractionated Picophytoplankton Spatial Central Summertime Full text pdf format PreviousNextCite article as: Wang Y, Kang J, Xiang P, Ye Lin H, M Mar Ecol Prog Ser 622:67-82. Export citation Tweet linkedIn Cited Published Vol. 622. Online publication date: July 18, 2019 Print ISSN: 0171-8630; 1616-1599 Copyright © Inter-Research.