南極大陸に生息する自活性線虫類の分類学的生態学的研究

• Format: Article in Journal/Newspaper
• Language: Japanese
• Published: 札幌医科大学医学部 2009
• Subjects: Species diversity; Terrestrial nematodes; Interstitial nematodes; Influence of sewage; Antarctic base; Antarctic; King George Island; Syowa Station; Wilkes Land; Casey Station; Sandy Beach; Great Wall Station; Escudero; Escudero Station; Eduardo Frei; Eduardo Frei Montalva; Antarc*; Antarctica; Enderby Land; National Institute of Polar Research
• Online Access: http://ir.cc.sapmed.ac.jp/dspace/handle/123456789/5288; https://doi.org/10.15114/smj.78.13

As a cooperative research program of National Institute of Polar Research (NIPR), Antarctic free-living nematodes have been investigated around Escudero Station (Chile), Eduardo Frei Montalva Station (Chile) and Great Wall Station (China) in King George Island, Syowa Station (Japan) on the coast of Enderby Land, and Casey Station (Australia) on the coast of Wilkes Land. Taxonomical studies revealed that terrestrial nematode fauna of King George Island, Enderby Land and Wilkes Land consisted of 23, 7 and 7species, respectively. This result well accorded to the current idea that species diversity of terrestrial nematodes is higher in the maritime Antarctica than in the continental Antarctica. Interstitial nematodes were studied on a sandy beach polluted with treated wastewater discharged from Eduardo Frei Montalva Station. Among 12 species found there, nematodes of the genera or families common in land water or soil habitat were rather abundant at sites closer to the opening of drainpipe while those of the genera common in sea shore occurred at sites far from the opening. This suggests that the wastewater from the station clearly influences the faunal composition and distribution of the interstitial nematodes on the beach in Antarctica.