Spatial variations of small phytoplankton contributions in the Northern Bering Sea and the Southern Chukchi Sea SCIE SCOPUS

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Title
Spatial variations of small phytoplankton contributions in the Northern Bering Sea and the Southern Chukchi Sea
Author(s)
Lee, Sang Heon; Ryu, Jongseong; Lee, Dabin; Park, Jung-Woo; Kwon, Jae-Il; Zhao, Jingping; Son, Seunghyun
KIOST Author(s)
Kwon, Jae Il(권재일)
Publication Year
2019-07-04
Abstract
Phytoplankton size classes (hereafter, PSCs) were derived from satellite ocean color data using a present phytoplankton abundance-based optical algorithm in the northern Bering and southern Chukchi Seas to characterize the spatial and seasonal variations of the different PSC and investigate the contributions of small phytoplankton to the total phytoplankton biomass. The comparison results showed that the phytoplankton abundance-based method approach could reasonably classify the three PSCs (pico-, nano-, and micro phytoplankton). The satellite maps of the dominant PSCs were derived using long-term satellite ocean color data. The general spatial distribution showed that the large (micro-) phytoplankton were dominant in the coastal waters and the west side of the Bering strait, while the small size (nano- or pico-) phytoplankton were dominant in the open ocean waters. Nano- and microphytoplankton were dominant in May and October in most of the study area, while pico-phytoplankton were dominant in the summer months in the open ocean waters. The annual variation in small phytoplankton dominance had a strong positive relationship with the annual mean sea surface temperature (SST), which is consistent with the increasing dominance of small phytoplankton biomass as water temperature increases. Microphytoplankton have an apparent increasing trend in the southeastern Chukchi Sea but slightly decreasing trends in Chirikov and St. Lawrence Island Polynya (SLIP). In contrast, there were increasing trends in picophytoplankton in Chirikov and SLIP, which seems to be related to increasing annual SST. It is crucial to monitor changes in dominant groups of phytoplankton community in the Bering and Chukchi Seas as important biological hotspots responding to the recent changes in environmental conditions.
ISSN
1548-1603
URI
https://sciwatch.kiost.ac.kr/handle/2020.kiost/38851
DOI
10.1080/15481603.2019.1571265
Bibliographic Citation
GISCIENCE & REMOTE SENSING, v.56, no.5, pp.794 - 810, 2019
Publisher
TAYLOR & FRANCIS LTD
Subject
PELAGIC FOOD WEBS; COLOR; VARIABILITY; ALGORITHM; PATTERNS; PARADOX; BIOMASS; YELLOW; CARBON
Keywords
phytoplankton size class; chlorophyll-a; ocean color remote sensing; OC-CCI; Bering sea; Chukchi sea
Type
Article
Language
English
Document Type
Article
Publisher
TAYLOR & FRANCIS LTD
Related Researcher
Research Interests

Ocean Numerical Modelling,Physical Oceanography,Coastal processess,해양수치모델,물리해양학,연안과정

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