Academic Journal
Spatial variations of small phytoplankton contributions in the Northern Bering Sea and the Southern Chukchi Sea
| العنوان: | Spatial variations of small phytoplankton contributions in the Northern Bering Sea and the Southern Chukchi Sea |
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| المؤلفون: | Sang Heon Lee, Jongseong Ryu, Dabin Lee, Jung-Woo Park, Jae-Il Kwon, Jingping Zhao, Seunghyun Son |
| المصدر: | GIScience & Remote Sensing, Vol 56, Iss 5, Pp 794-810 (2019) |
| بيانات النشر: | Taylor & Francis Group, 2019. |
| سنة النشر: | 2019 |
| المجموعة: | LCC:Mathematical geography. Cartography LCC:Environmental sciences |
| مصطلحات موضوعية: | phytoplankton size class, chlorophyll-a, ocean color remote sensing, oc–cci, bering sea, chukchi sea, Mathematical geography. Cartography, GA1-1776, Environmental sciences, GE1-350 |
| الوصف: | 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. |
| نوع الوثيقة: | article |
| وصف الملف: | electronic resource |
| اللغة: | English |
| تدمد: | 1548-1603 1943-7226 15481603 |
| Relation: | https://doaj.org/toc/1548-1603; https://doaj.org/toc/1943-7226 |
| DOI: | 10.1080/15481603.2019.1571265 |
| URL الوصول: | https://doaj.org/article/f404b06cafc44850b48f6a5634df820f |
| رقم الانضمام: | edsdoj.f404b06cafc44850b48f6a5634df820f |
| قاعدة البيانات: | Directory of Open Access Journals |
| تدمد: | 15481603 19437226 |
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| DOI: | 10.1080/15481603.2019.1571265 |