Match!

Carbon and nitrogen uptake rates and macromolecular compositions of bottom-ice algae and phytoplankton at Cambridge Bay in Dease Strait, Canada

Published on Apr 23, 2020in Annals of Glaciology3.131
· DOI :10.1017/AOG.2020.17
Kwanwoo Kim , Sun-Yong Ha2
Estimated H-index: 2
+ 4 AuthorsSang Heon Lee24
Estimated H-index: 24
Abstract
  • References (61)
  • Citations (0)
📖 Papers frequently viewed together
14 Citations
20091.43Arctic
3 Authors (Sang Heon Lee, ..., Sung-Ho Kang)
23 Citations
29 Citations
78% of Scinapse members use related papers. After signing in, all features are FREE.
References61
Newest
#1L. Tedesco (SYKE: Finnish Environment Institute)
#2Marcello Vichi (UCT: University of Cape Town)H-Index: 21
Last. Enrico Scoccimarro (Central Maine Community College)H-Index: 24
view all 3 authors...
The Arctic sea-ice decline is among the most emblematic manifestations of climate change and is occurring before we understand its ecological consequences. We investigated future changes in algal productivity combining a biogeochemical model for sympagic algae with sea-ice drivers from an ensemble of 18 CMIP5 climate models. Model projections indicate quasi-linear physical changes along latitudes but markedly nonlinear response of sympagic algae, with distinct latitudinal patterns. While snow co...
Source
#1P.S. Bhavya (PNU: Pusan National University)
#2Bo Kyung KimH-Index: 8
Last. Sang Heon Lee (PNU: Pusan National University)H-Index: 24
view all 16 authors...
Biochemical composition of phytoplankton is a key indicator of the physiological and nutritional status of phytoplankton. A balanced biochemical pattern represents a healthy and productive metabolism in the autotrophic levels which can facilitate proper functioning of higher level organisms. The estimation of biochemical compositions was initiated in the early 1970’s. However, there has been a significant set of modifications in the extraction method and improvements in the sampling and analysis...
1 CitationsSource
#1So Hyun Ahn (PNU: Pusan National University)H-Index: 3
#2Terry E. Whitledge (UAF: University of Alaska Fairbanks)H-Index: 31
Last. Sang Heon Lee (PNU: Pusan National University)H-Index: 24
view all 6 authors...
The Laptev and East Siberian seas which are generally viewed as terrestrial organic matter (TerrOM)-dominated seas, are among the least biologically understood regions in the Arctic Ocean. During the summer of 2013, however, the TerrOM signature was negligible in our samples. We investigated the biochemical composition (carbohydrates [CHO], proteins [PRT], and lipids [LIP]) of phytoplankton-dominated particulate organic matter in order to improve our understanding of the physiological status of ...
Source
#1Maria A. van LeeuweH-Index: 12
#2Letizia Tedesco (SYKE: Finnish Environment Institute)H-Index: 9
Last. Jacqueline StefelsH-Index: 25
view all 10 authors...
Sea ice is one the largest biomes on earth, yet it is poorly described by biogeochemical and climate models. In this paper, published and unpublished data on sympagic (ice-associated) algal biodiversity and productivity have been compiled from more than 300 sea-ice cores and organized into a systematic framework. Significant patterns in microalgal community structure emerged from this framework. Autotrophic flagellates characterize surface communities, interior communities consist of mixed micro...
12 CitationsSource
#1Karley Campbell (UM: University of Manitoba)H-Index: 8
#2Christopher John Mundy (UM: University of Manitoba)H-Index: 23
Last. Søren Rysgaard (UM: University of Manitoba)H-Index: 52
view all 5 authors...
The abundance of diatoms and heterotrophic bacteria in sea ice rapidly increases during the spring. However, the number and activity of these microorganisms vary with changing environmental conditions and potentially the taxonomic composition of the algal community during this time. In this study, we assessed the spring bottom-ice community composition in Dease Strait, Nunavut, and investigated potential controls of chlorophyll a (chl a), particulate organic carbon (POC), cell abundance, and pro...
7 CitationsSource
#1Giulia CastellaniH-Index: 7
#2Martin LoschH-Index: 21
Last. Hauke FloresH-Index: 12
view all 4 authors...
Algae growing in sea ice represent a source of carbon for sympagic and pelagic ecosystems, and contribute to the biological carbon pump. The biophysical habitat of sea ice on large scales and the physical drivers of algae phenology are key to understanding Arctic ecosystem dynamics and for predicting its response to ongoing Arctic climate change. In addition, quantifying potential feedback mechanisms between algae and physical processes is particularly important during a time of great change. Th...
6 CitationsSource
2 CitationsSource
#1Karley Campbell (UM: University of Manitoba)H-Index: 8
#2Christopher John Mundy (UM: University of Manitoba)H-Index: 23
Last. Søren RysgaardH-Index: 52
view all 6 authors...
Abstract Sea ice algae are a characteristic feature in ice-covered seas, contributing a significant fraction of the total primary production in many areas and providing a concentrated food source of high nutritional value to grazers in the spring. Algae respond to physical changes in the sea ice environment by modifying their cellular carbon, nitrogen and pigment content, and by adjusting their photophysiological characteristics. In this study we examined how the ratios of particulate organic ca...
10 CitationsSource
#1Ho Jung Song (UPR-RP: UPRRP College of Natural Sciences)H-Index: 4
#2Jae Hyung Lee (UPR-RP: UPRRP College of Natural Sciences)H-Index: 5
Last. Sang Heon Lee (UPR-RP: UPRRP College of Natural Sciences)H-Index: 24
view all 9 authors...
Recent changes in climate and environmental conditions have had great negative effects such as decreasing sea ice thickness and the extent of Arctic sea ice floes that support ice-related organisms. However, limited field observations hinder the understanding of the impacts of the current changes in the previously ice-covered regions on sea ice algae and other ice-related ecosystems. Our main objective in this study was to measure recent primary production of ice algae and their relative contrib...
2 CitationsSource
#1Sami J. TaipaleH-Index: 25
Last. Paula KankaalaH-Index: 34
view all 6 authors...
Freshwater food webs can be partly supported by terrestrial primary production, often deriving from plant litter of surrounding catchment vegetation. Although consisting mainly of poorly bioavailable lignin, with low protein and lipid content, the carbohydrates from fallen tree leaves and shoreline vegetation may be utilized by aquatic consumers. Here we show that during phytoplankton deficiency, zooplankton (Daphnia magna) can benefit from terrestrial particulate organic matter by using terrest...
18 CitationsSource
Cited By0
Newest