• 제목/요약/키워드: bryozoans

검색결과 43건 처리시간 0.018초

Fouling Bryozoa of Korean Ports and Harbours

  • Chae, Hyun Sook;Seo, Ji Eun
    • Animal Systematics, Evolution and Diversity
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    • 제35권4호
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    • pp.204-217
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    • 2019
  • This study aims to investigate the fouling bryozoans which attach to artificial structures of Korean ports and harbours. The materials have been collected from 56 sites during the period from 2008 to 2012. As a result of the present study, 40 species of fouling bryozoans were identified. The most abundant species are Bugula neritina (Linnaeus, 1758), Tricellaria occidentalis (Trask, 1857), Watersipora subtoquata (d'Orbigny, 1852), and Cryptosula pallasiana (Moll, 1803). Three species, Flustrellidra armata Grischenko, Seo and Min, 2010, Cauloramphus korensis Seo, 2001, and Parasmittina contraria Seo, 1993 are endemic to Korea. A total of 70 species of fouling bryozoans have been reported in Korea with 16 new bryozoans resulting from this study.

Three new records of Korean cyclostomatous bryozoans

  • yun Sook Chae;Ho Jin Yang;Bum Sik Min;Ji Eun Seo
    • Journal of Species Research
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    • 제12권4호
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    • pp.362-367
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    • 2023
  • Three cyclostomatous bryozoans from Korea belonging to the genera Bicrisia and Nevianipora are described here for the first time. The specimens collected from six localities of the South Sea and Jejudo Island during the period from 1981 to 2020 were observed. The three cyclostomatous bryozoans are Nevianipora pulcherrimoidea (Liu in Liu, Yin & Ma, 2001), N. rugatata (Liu in Liu, Yin & Ma, 2001), and Bicrisia edwardsiana (d'Orbigny, 1841). Nevianipora pulcherrimoidea and N. rugatata were previously found only from the South China Sea, whereas Bicrisia edwardsiana is widespread. As a result of this study, the Korean cyclostomatous bryozoans have increased to 20 species, 10 genera, and five families. Redescriptions and illustrations by scanning electron microscopy of the three species new to the Korean fauna are provided herein.

Three newly recorded species of Korean fouling bryozoans

  • Chae, Hyun Sook;Yang, Ho Jin;Min, Bum Sik;Noh, Geon Woo;Lee, Dong Hee;Seo, Ji Eun
    • Journal of Species Research
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    • 제11권3호
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    • pp.180-187
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    • 2022
  • We found three fouling bryozoans from the materials collected from seven localities (ports, yacht marina, intertidal and subtidal zones) in the coastal seas of South Korea from 2003 to 2021. These three species, Thalamoporella californica (Levinsen, 1909), Scruparia ambigua (d'Orbigny, 1841), and Tricellaria inopinata d'Hondt and Occhipinti Ambrogi, 1985, and one genus Scruparia Oken, 1815 are newly added to the Korean bryozoan fauna. Of the three species, Scruparia ambigua and Tricellaria inopinata are cosmopolitan or widespread, and Thalamoporella californica is from the East Pacific Ocean in tropical/temperate water. It seems that some of the previously reported T. occidentalis in Korea have a high probability of being T. inopinata. In this study, some Tricellaria occidentalis reported by Seo (2005) are synonymized into T. inopinata. A total of 77 species of fouling bryozoans has been reported in Korea, with three new bryozoans resulting from this study. Descriptions and illustrations of the three fouling bryozoans using scanning electron microscopy are provided in this study.

거제도의 해산 태형동물 (Marine Bryozoans from Geojedo Island in Korea)

  • Ji Eng Seo
    • Animal Systematics, Evolution and Diversity
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    • 제14권3호
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    • pp.207-217
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    • 1998
  • 한국의 거제도로부터 29종의 해산 태형동물을 보고한다. 이들 중 Chaperia acanthina와 Antropora tincta의 2종은 한국 미기록종이며 거제도로부터 이미 밝혀진 종은 본 연구에서도 보고되는 Amathia distans와 Tricellaria occidentalis의 두 종뿐이다. 따라서 본 연구에서 새롭게 밝혀지는 거제도산 해산 태형동물은 25종이다.

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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.

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.

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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Two Species of the Genus Disporella (Bryozoa: Cyclostomata) from Korea

  • Hyun Sook Chae;Ho Jin Yang; Bum Sik Min;Ji Eun Seo
    • Animal Systematics, Evolution and Diversity
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    • 제39권1호
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    • pp.22-26
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    • 2023
  • This paper describes two cyclostomatous bryozoans belonging to the genus Disporella Gray, 1848 found in Korean waters. This study was carried out with the materials which were collected from two localities, Jodo Island and Gapado Island, from 2014 to 2015. It is known that the genus Disporella Gray, 1848 needs a thorough revision and is difficult to identify because it has been documented in very few of the nominal species. Approximately 58 species have been recognized worldwide. One species, Disporella novaehollandiae (D'Orbigny, 1853), has been reported from Korean waters so far. Two species, D. pristis (MacGillivray, 1884) and D. wanganuiensis (Waters, 1887), distributed in the Indo-Pacific, are newly added to the Korean bryozoans fauna in this study. Accordingly, the Korean cyclostomatous bryozoans have increased to 17 species, ten genera and five families. Descriptions and illustrations of the two Disporella species using scanning electron microscopy are provided in this paper.

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.

First Fossil Bryozoans from Korea (Seogwipo Formation, Jejudo)

  • Kamil Zagorsek;Hyun Sook Chae;Ho Jin Yang;Geon Woo Noh;Ji Eun Seo
    • Animal Systematics, Evolution and Diversity
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    • 제40권1호
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    • pp.47-67
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    • 2024
  • The bryozoan assemblage from Seogwipo Formation in Jejudo yielded 33 taxa, including seven cyclostomes and 26 cheilostomes. It is the first fossil bryozoans described from the entire Korean peninsula. Five species, Callopora inermis, Tegella horrida, Celleporaria reflexa, Porella rotundirostris, and Rhynchozoon obliquimandibulatum, are new to the Korean bryozoan fauna as both in the Recent and fossil records. Tegella horrida, Celleporella reflexa, Porella donoghueorum, and Leischara subgracilis are notably cold-water species. This suggests that the Seogwipo Formation was primarily deposited in shallow water environment, subject to changesinfluenced by warm-water masses and temporarily impacted by cold currents. Only 33 species from the Seogwipo Formation in Korea, are very poor because the Seogwipo Formation is the only Pleistocene marine deposit in the Korean Peninsula. Eight species previously unknown as fossils worldwide, Tubulipora perforata, Puellina paracaesia, Reginella multipora, Celleporella reflexa, Exochella cryptodontia, Suhius cf. rubescentis, Cheiloporina cf. haddoni, and Jodoella koreensis are found in the Seogwipo Formation. This study is meaningful as it reports the first fossil assemblage of bryozoans from the Korean peninsula.