Chlorophyll a in Antarctic sea ice from historical ice core data

被引:99
作者
Meiners, K. M. [1 ,2 ]
Vancoppenolle, M. [3 ]
Thanassekos, S. [4 ]
Dieckmann, G. S. [5 ]
Thomas, D. N. [6 ,7 ,14 ]
Tison, J. -L. [8 ]
Arrigo, K. R. [9 ]
Garrison, D. L. [10 ]
McMinn, A. [11 ]
Lannuzel, D. [2 ,11 ]
van der Merwe, P. [2 ,11 ]
Swadling, K. M. [11 ]
Smith, W. O., Jr. [12 ]
Melnikov, I. [13 ]
Raymond, B. [1 ,2 ]
机构
[1] Australian Antarctic Div, Dept Sustainabil Environm Water Populat & Commun, Kingston, Tas 7050, Australia
[2] Univ Tasmania, Antarctic Climate & Ecosyst Cooperat Res Ctr, Hobart, Tas, Australia
[3] Lab Oceanog & Climat CNRS UPMC IRD MNHN, IPSL, Paris, France
[4] Commiss Conservat Antarctic Marine Living Resourc, Hobart, Tas, Australia
[5] Alfred Wegener Inst Polar & Marine Res, Bremerhaven, Germany
[6] Bangor Univ, Sch Ocean Sci, Anglesey, Wales
[7] Finnish Environm Inst, Helsinki, Finland
[8] Univ Libre Brussels, Lab Glaciol, Brussels, Belgium
[9] Stanford Univ, Dept Environm Earth Syst Sci, Stanford, CA 94305 USA
[10] Natl Sci Fdn, Div Ocean Sci, Biol Oceanog Program, Arlington, VA 22230 USA
[11] Univ Tasmania, Inst Marine & Antarctic Studies, Hobart, Tas, Australia
[12] Virginia Inst Marine Sci, Coll William & Mary, Gloucester Point, VA 23062 USA
[13] Russian Acad Sci, PP Shirshov Oceanol Inst, Moscow, Russia
[14] Aarhus Univ, Arctic Ctr, Aarhus, Denmark
关键词
WESTERN WEDDELL SEA; ALGAE; EVOLUTION;
D O I
10.1029/2012GL053478
中图分类号
P [天文学、地球科学];
学科分类号
07 ;
摘要
Sea ice core chlorophyll a data are used to describe the seasonal, regional and vertical distribution of algal biomass in Southern Ocean pack ice. The Antarctic Sea Ice Processes and Climate - Biology (ASPeCt - Bio) circumpolar dataset consists of 1300 ice cores collected during 32 cruises over a period of 25 years. The analyses show that integrated sea ice chlorophyll a peaks in early spring and late austral summer, which is consistent with theories on light and nutrient limitation. The results indicate that on a circum-Antarctic scale, surface, internal and bottom sea ice layers contribute equally to integrated biomass, but vertical distribution shows distinct differences among six regions around the continent. The vertical distribution of sea ice algal biomass depends on sea ice thickness, with surface communities most commonly associated with thin ice (<0.4m), and ice of moderate thickness (0.4-1.0 m) having the highest probability of forming bottom communities. Citation: Meiners, K. M., et al. (2012), Chlorophyll a in Antarctic sea ice from historical ice core data, Geophys. Res. Lett., 39, L21602, doi:10.1029/2012GL053478.
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页数:5
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