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|Title: ||Outdoor airborne fungi in the Arctic region – Svalbard, Norway|
|Authors: ||Vrijmoed L. L. P.;Chan W. Y.;Pang K. L.|
|Contributors: ||NTOU:Institute of Marine Biology|
|Keywords: ||Abundance;air-borne fungi;Arctic;diversity|
|Issue Date: ||2011-10-21T03:05:46Z
|Publisher: ||3rd Malaysian International Seminar on Antarctica (MISA3)|
|Abstract: ||Abstract:Abundant information is available on outdoor airborne fungi in tropical and temperate regions, but surveys in the Arctic region have rarely been undertaken. This study reports a two-day monitoring of outdoor airborne fungi conducted at Longyearbyen, Svalbard, Norway (78o13'N, 15o33'E), in August 2006. A total of 10 air samples were taken at intervals at the balcony on the second floor of a guesthouse at Nybyen using the Air-O-CellTM Sampler. Total fungal spore count ranged from 20 to 320 count/m3, with a mean value of 120 count/m3 (±114 count/m3). Hyphal fragments were also observed and the mean concentration was 27 count/m3 (±30 count/m3). Aspergillus/Penicillium, Alternaria, Cladosporium and Fusarium were identified with Aspergillus/Penicillium and Cladosporium being the most abundant contributing to 23% of the total count. No obvious diurnal variation of spore count was observed. When comparing the results of this study with those carried out in temperate and subtropical regions, relatively lower fungal counts and fungal diversity were found in this study. The fungal counts, however, were similar to the previous studies in the Arctic region but were relatively higher than those conducted in the Antarctic area. Among the fungal isolates sampled in the Antarctic region, Cladosporium was reported as the most abundant fungus but with a lower percentage of dominance (<2-25.2%). The second most abundant fungal type was a taxon with melanised spores (10-(11)-12 × 4-(6.2)-8 ?m, obovoid shape, one-celled), contributing 21% to the total count. Further investigations on culturable samples are required to investigate the possible eco-physiological mechanisms underlying the survival of these fungi in the Arctic region.|
|Appears in Collections:||[海洋生物研究所] 演講及研討會|
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