First observations of living sea-ice diatom agglomeration to tintinnid loricae in East Antarctica
First observations of living sea-ice diatom agglomeration to tintinnid loricae in East Antarctica
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首次观察到东南极洲活海冰硅藻聚集到丁丁尼德洛里科
DOI:
10.1093/plankt/fbx036
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发表时间:
2017
影响因子:
2.1
通讯作者:
Armand, Leanne K.
中科院分区:
文献类型:
--
作者:
Armbrecht, Linda H.;Eriksen, Ruth;Leventer, Amy;Armand, Leanne K.
Tintinnid ciliates are an important link in marine food webs as they feed on phytoplankton and bacteria while providing nutrients to higher trophic levels. Tintinnids are known to agglutinate mineral particles or dead biogenic material such as diatom frustules to their shell-like housing (lorica), however, reasons for this agglutination remain questioned. We report on our observation of agglomeration of the living diatomsFragilariopsis curta,F. cylindrus, F. pseudonanaandF. rhombicato loricae of the Antarctic tintinnid ciliatesLaackmanniella naviculaeferaandCodonellopsis gaussi.These unusual associations between living diatoms and tintinnids were exclusively observed south of 63.59°S. We discuss the significance of our new finding and generate hypotheses to be tested by future research. It remains unclear where these living diatom–tintinnid associations are initially formed (in or near sea ice or also further north when abundances ofL. naviculaefera, C. gaussi,F. curta,F. cylindrus,F. pseudonanaandF. rhombicahappen to be relatively high); who the beneficiary is in this association; what the exact benefits are; and how they might influence the Southern Ocean carbon cycle. Nevertheless, our observation provides a key step forward towards illuminating the largely unknown ecology of two Southern Ocean-endemic tintinnid species.
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影响因子:
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通讯作者:
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DOI:
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发表时间:
1965
期刊:
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DOI:
--
发表时间:
2001
期刊:
影响因子:
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作者:
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通讯作者:
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