scholarly journals Carbon Uptake Rates of Sea Ice Algae and Phytoplankton under Different Light Intensities in a Landfast Sea Ice Zone, Barrow, Alaska

ARCTIC ◽  
2009 ◽  
Vol 61 (3) ◽  
Author(s):  
Sang H. Lee ◽  
Terry E. Whitledge ◽  
Sung-Ho Kang
Keyword(s):  
Sea Ice ◽  
Carbon Uptake ◽  
Ice Algae ◽  
Sea Ice Algae ◽  
Light Intensities ◽  
Uptake Rates ◽  
Landfast Sea Ice

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

2020 ◽  
Vol 61 (82) ◽  
pp. 106-116
Author(s):  
Kwanwoo Kim ◽  
Sun-Yong Ha ◽  
Bo Kyung Kim ◽  
C. J. Mundy ◽  
Kathleen M. Gough ◽  
...  
Keyword(s):  
Sea Ice ◽  
Arctic Sea Ice ◽  
The Arctic ◽  
Nutrient Concentrations ◽  
Carbon Uptake ◽  
Ice Algae ◽  
Carbon And Nitrogen ◽  
Uptake Rates ◽  
Marine System ◽  
Landfast Sea Ice

AbstractOur understanding of ice algal responses to the recent changes in Arctic sea ice is impeded by limited field observations. In the present study, environmental characteristics of the landfast sea-ice zone as well as primary production and macromolecular composition of ice algae and phytoplankton were studied in the Kitikmeot Sea near Cambridge Bay in spring 2017. Averaged total chlorophyll-a (Chl-a) concentration was within the lower range reported previously for the same region, while daily carbon uptake rates of bottom-ice algae were significantly lower in this study than previously reported for the Arctic. Based on various indicators, the region's low nutrient concentrations appear to limit carbon uptake rates and associated accumulation of bottom-ice algal biomass. Furthermore, the lipids-dominant biochemical composition of bottom-ice algae suggests strong nutrient limitation relative to the distinctly different carbohydrates-dominant composition of phytoplankton. Together, the results confirm strong nitrate limitation of the local marine system.

An Improved Chamber for in situ Measurement of Primary Productivity by Sea Ice Algae

1982 ◽  
Vol 39 (3) ◽  
pp. 522-524 ◽  
Author(s):  
G. C. Schrader ◽  
R. Horner ◽  
G. F. Smith
Keyword(s):  
Sea Ice ◽  
Arctic Ocean ◽  
Primary Productivity ◽  
In Situ Measurement ◽  
Carbon Uptake ◽  
Ice Algae ◽  
Sea Ice Algae ◽  
Scuba Divers ◽  
Ice Conditions

A modified chamber was designed for in situ measurement of carbon uptake of micro-algae growing on the underside of sea ice. The chamber, operated by SCUBA divers, accommodates a wider range of ice conditions, has better holding capability, and reduces sample loss during retrieval.Key words: Arctic Ocean, sea ice algae, primary productivity

scholarly journals Seasonal and latitudinal variations in sea ice algae deposition in the Northern Bering and Chukchi Seas determined by algal biomarkers

PLoS ONE ◽  
2020 ◽  
Vol 15 (4) ◽  
pp. e0231178 ◽  
Author(s):  
Chelsea Wegner Koch ◽  
Lee W. Cooper ◽  
Catherine Lalande ◽  
Thomas A. Brown ◽  
Karen E. Frey ◽  
...  
Keyword(s):  
Sea Ice ◽  
Ice Algae ◽  
Sea Ice Algae ◽  
Latitudinal Variations

scholarly journals Aspects of resilience of polar sea ice algae to changes in their environment

Hydrobiologia ◽  
2015 ◽  
Vol 761 (1) ◽  
pp. 261-275 ◽  
Author(s):  
Meghana A. Rajanahally ◽  
Phil J. Lester ◽  
Peter Convey
Keyword(s):  
Sea Ice ◽  
Ice Algae ◽  
Sea Ice Algae

The importance of vertical resolution in sea ice algae production models

2015 ◽  
Vol 145 ◽  
pp. 69-90 ◽  
Author(s):  
Pedro Duarte ◽  
Philipp Assmy ◽  
Haakon Hop ◽  
Gunnar Spreen ◽  
Sebastian Gerland ◽  
...  
Keyword(s):  
Sea Ice ◽  
Ice Algae ◽  
Vertical Resolution ◽  
Sea Ice Algae ◽  
Production Models

Photobiology of sea ice algae during initial spring growth in Kangerlussuaq, West Greenland: insights from imaging variable chlorophyll fluorescence of ice cores

2012 ◽  
Vol 112 (2) ◽  
pp. 103-115 ◽  
Author(s):  
Ian Hawes ◽  
Lars Chresten Lund-Hansen ◽  
Brian K. Sorrell ◽  
Morten Holtegaard Nielsen ◽  
Réka Borzák ◽  
...  
Keyword(s):  
Chlorophyll Fluorescence ◽  
Sea Ice ◽  
Ice Cores ◽  
Ice Algae ◽  
West Greenland ◽  
Sea Ice Algae ◽  
Variable Chlorophyll Fluorescence

scholarly journals Photophysiology and photoacclimation in surface sea ice algae from McMurdo Sound, Antarctica

1997 ◽  
Vol 147 ◽  
pp. 243-256 ◽  
Author(s):  
DH Robinson ◽  
Z Kolber ◽  
CW Sullivan
Keyword(s):  
Sea Ice ◽  
Ice Algae ◽  
Mcmurdo Sound ◽  
Sea Ice Algae
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