• Title/Summary/Keyword: protista

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Heterotrophic Euglenids from Marine Sediments of Cape Tribulation, Tropical Australia

  • Lee, Won-Je
    • Ocean Science Journal
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    • v.41 no.2
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    • pp.59-73
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    • 2006
  • This paper presents new data on free-living heterotrophic euglenids (Euglenozoa, Protista) that occurred in the marine sediments at Cape Tribulation, Queensland, Australia. Twenty-nine species from 9 genera are described with uninterpreted records based on light microscopy, including one new taxon: Notosolenus capetribulationi n. sp. There was little evidence for endemism because the majority of heterotrophic euglenid species encountered here have been reported or were found from other habitats.

Free-living Heterotrophic Stramenopile Flagellates from Gippsland Basin, South-eastern Australia

  • Lee, Won-Je
    • ALGAE
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    • v.22 no.1
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    • pp.23-29
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    • 2007
  • Free-living heterotrophic stramenopile flagellates, which lack chloroplasts, were encountered in deep-sea sediments of Gippsland Basin (Australia) and classified into 10 species (8 genera, 5 families, 3 orders). Their descriptions were based on living specimens by light microscopy. Those species rarely found in this study were Bicosoeca gracilipes, Caecitellus parvulus, Cafeteria minuta, Cafeteria roenbergensis, Pseudobodo tremulans, Spumella sp., Paraphysomonas sp., Actinomonas mirabilis, Ciliophrys infusionum and Developayella elegans. Their morphological characters and geographic distribution are presented.

Some Free-Living Heterotrophic Flagellates from Marine Sediments of Tropical Australia

  • Lee, Won-Je
    • Ocean Science Journal
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    • v.41 no.2
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    • pp.75-95
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    • 2006
  • The diversity of heterotrophic flagellates was examined at marine sediments around Cape Tribulation, Australia. The species described belong to the Alveolates, Apusomonadiae, Cercomonadida, Choanoflagellida, Cryptomonadida, Diplomonadida, Euglenozoa incertae sedis, Kathablepharidae, Kinetoplastida, Pedinellids, Stephanopogonidae, Stramenopiles, Stramenopiles incertae sedis, Thaumatomonadidae and Protista incertae sedis. Among the 51 species from 38 genera encountered in this study is one new taxon: Glissandra similis n. sp., and two new names are introduced: Goniomonas abrupta (Skvortzov 1924) nomen nodum and Cercomonas skvortzovi (Skvortzov 1977) nomen nodum. There was little evidence for endemism because most flagellates including one new taxon described here have been reported.

An Analytical Study of the Exhibits in the Section of Biology in the National Science Fairs (전국과학전람회 생물부문 출품작 분석)

  • 최도성
    • Journal of Korean Elementary Science Education
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    • v.22 no.1
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    • pp.97-108
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    • 2003
  • The total 4,895 works presented at Science Fairs for the past 17 years(1986∼2002) are classified by subjects and participators, and the 1,277 works in biology section are analyzed by participators, contents, and object materials. The results are as follows: The proportion of exhibits according to sections was the most in Biology(26.1%). The social position of exhibitors and its proportion were 45.7% in students and 54.3% in teachers and popular people. The proportions of students' exhibits by the level of school were elementary school(68.3%). middle school(14.3%), and high school(17.4%). This indicates rapid decrease in the number of exhibits in middle and high schools. The proportion of students' exhibits(55.9%) is higher than that of teachers' exhibits(44.1%) in the section of Biology. In terms of contents, exhibits about Physiology and Ecology were the most(67.6%). The materials used in those exhibits and the proportion were Animalia(50.9%), Plantae(39.9%), Fungi(5.7%), Monera(1.8%), and Protista(1.7%). The proportion of taxa in plants studied in the exhibits were Dicotyledoneae(65.9%) and Monocotyledoneae(17.3%). The proportion of taxa In animals was Arthropoda(60.2%), Vertebrata(24.9%), and Mollusca(11.1%). The species used in those exhibits and its times were pine tree(11 times), dandelion(10 times), and butterfly(11 times).

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