• 제목/요약/키워드: Korean freshwater bryozoans

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한국산 민물 태형동물 (Taxonomy of the Freshwater Bryozoans from Korea)

  • Ji Eun Seo
    • Animal Systematics, Evolution and Diversity
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    • 제14권4호
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    • pp.371-381
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    • 1998
  • 한국의 9개 다목적댐저수지와 그외 다른 3개 저수지로부터 1995년 11월부터 1998년 9월까지 채집된 민물 태형동물 4종을 보고한다. 이중 Pectinatella mag-nifica는 외국에서 유입된 종을 우리나레에서는 처음으로 보고되는 종이며, 따라서 한국산 민물 태형동물은 모두 11종이 기록된다.

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Taxonomic study of freshwater bryozoans from Jeju Island, Korea

  • Chae, Hyun Sook;Kil, Hyun Jong;Seo, Ji Eun
    • Journal of Species Research
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    • 제6권spc호
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    • pp.129-134
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    • 2017
  • This study aims to investigate the freshwater bryozoans of Jeju Island off the Korean Peninsula for the first time. To date, twelve species has been reported from the mainland of Korea. However, no study of freshwater bryozoans has ever been conducted on Korean islands including Jeju Island, which is the largest island in Korea. Five species in three genera Fredericella, Plumatella and Stephanella, from Jeju Island are described. Of which, three species, Fredericella indica, Plumatella mukaii and P. rugosa, are new records of Korean bryozoan fauna. As a result of this study, the number of identified Korean freshwater bryozoans is now 15 species, including 12 phylactolaemates and three gymnolaemates.

Freshwater bryozoans of Korea-observations on living colonies and three new records

  • Hyun Sook Chae;Hyun Jong Kil;Ho Jin Yang;Ji Eun Seo
    • Journal of Species Research
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    • 제13권1호
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    • pp.50-60
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    • 2024
  • We performed a taxonomic study on Korean freshwater bryozoans with the materials collected from 70 localities during 2014 to 2016. A total of 14 Korean freshwater bryozoans are reported through this study. Among them, three Plumatellids, Plumatella fungosa (Pallas, 1768), P. repens (Linnaeus, 1758), and P. reticulata Wood, 1988, are newly added to the Korean fauna. Three species were redescribed with only their statoblasts: Lophopodella carteri, Plumatella rugosa, and Stephanosella hina (Seo, 1998; 2005; Chae et al., 2016). Their colonies were found in Korea for the first time in this study. Since Fredericella sultana, Hyalinella punctata, and Plumatella casmiana were reported from Korea (Toriumi, 1941), neither statoblast nor colony has been found, but we observed them. Living colonies of six species were photographed in the field. Furthermore, the statoblasts of nine species, including three species new to the Korean fauna, were also documented using scanning electron microscopy.

Gymnolaemate Bryozoans in Fresh and Brackish Water of South Korea: Occurrence, Taxonomical Remarks and Zoogeographical Implications

  • Jung, Kyoung Jin;Woss, Emmy R.;Chae, Hyun Sook;Seo, Ji Eun
    • Animal Systematics, Evolution and Diversity
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    • 제33권1호
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    • pp.37-44
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    • 2017
  • The present census on freshwater bryozoans in the Han River, Geum River and in lentic water bodies in Gangwon Province revealed three gymnolaemate species. Two of them-Hislopia prolixa Hirose and Mawatari, 2011 and Victorella pavida Saville Kent, 1870 were recorded for the first time from South Korea. Paludicella articulata (Ehrenberg, 1831), on the other hand, had already been documented from a few sites since 1941. The bryozoans, all belonging to the order of Ctenostomata, were found on a variety of substrates in freshwater (H. prolixa and P. articulata) and brackish habitats (V. pavida). Hislopia prolixa had recently been established as a new species and this is the first record for an occurrence outside of Japan, where it had been newly described from Lake Biwa and nearby satellite lakes.

Trait-based algal community assembly associated with Pectinatella magnifica (Bryozoa, Phylactolaemata)

  • Kim, Hyo Gyeom;Lee, Hak Young;Joo, Gea-Jae
    • ALGAE
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    • 제34권2호
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    • pp.99-109
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    • 2019
  • Habitat-forming species increase spatial complexity and alter local environmental conditions, often facilitating the assembly of plants and animals. We conducted a trait-based approach to algal assemblages associated with the freshwater bryozoan, Pectinatella magnifica. Association with algae leads to the inner bodies of the bryozoans being colored green; this is frequently observed in the large rivers of South Korea. We collected the green-colored gelatinous matrices and phytoplankton from waterbodies of the two main rivers in South Korea. Algal assemblages within the colonies and in the waterbodies were compared using the three diversity indices (richness, diversity, and dominance), and the composition of functional groups (FGs) and morphologically based functional groups (MBFGs) between the colonies within and outside of P. magnifica colonies. The most dominant and common species within the colonies were Oscillatoria kawamurae and Pseudanabaena catenata, both of which were assigned to the same FG (codon S1). Of the algal assemblages within the colonies, the dominance was higher, while the richness and diversity were lower, than those in the waterbodies. There was variation in the compositions of FGs and MBFGs in the waterbodies outside the colonies. Total nitrogen and orthophosphate led to dominance, and were significant factors for the variation in FGs in the waterbodies, whereas there were no such significant factors within the colonies. This trait-based approach to the community structure of associated algae provides the status and habitat gradient of these communities, which are stable, isolated, and consistent with the overgrowth of shade-adapted tychoplanktonic cyanobacteria.

해양 생물다양성 정보시스템 개발 -한국 해양생물 종 목록 수립을 중심으로- (Development of the Korea Marine Biodiversity Information System -Focus on the Establishment of the Korea Maine Species Inventory-)

  • 박수영;김성대;이윤호;배세진;박흥식;김충곤
    • Ocean and Polar Research
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    • 제29권3호
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    • pp.273-282
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    • 2007
  • For an efficient management and utilization of marine biodiversity information, we made an attempt to develop the Korea Marine Biodiversity Information System (KoMBIS), building a species name inventory of Korea marine organisms. The inventory includes 17 organism groups: phytoplankton, zooplankton, algae and halophyte, sponges, cnidarians, rotifers, nematodes, bryozoans, brachiopods, molluscs, echiurans, annelids, arthropods, echinoderms, urochordates and fish. The species names were collected from 37 different references and reviewed for validity by taxonomists, which resulted in 9,798 valid names in addition to 1,845 synonyms. The Korea marine species inventory is the first one of this kind, for previous Korean species name inventories were mostly composed of terrestrial and freshwater organisms. KoMBIS, the information system developed, contains not only the species name but also information on morphological and ecological characteristics such as distribution, DNA barcode, and references. This system is convenient for the inputting of new data and servicing users through the internet, so that management and utilization of the biodiversity information is more efficient. Linking the DNA barcode data with species information provides an objective measure for identification of a species, which accommodates the recommendation of Consortium for the Barcode of Life, and makes the Korea marine biodiversity information compatible with international databases. Considering the frequent exchange of marine organisms internationally via ballast water and such issues as climate change, this information system will be useful in many areas of marine biodiversity.