• Title/Summary/Keyword: polychaeta

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Five species of the Genus Prionospio (Polychaeta: Spionidae) in Kwangyang Bay, Korea

  • Jung Rae-Hong;Choi Byoung-Mi;Hong Jae-Sang
    • Fisheries and Aquatic Sciences
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    • v.1 no.2
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    • pp.216-226
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    • 1998
  • Specimens of the spionid polychaetes (Polychaeta: Spionidae) were collected and examined in the subtidal shallow waters of Kwangyang Bay, southern coast of Korea, from April 1990 to November 1994. Five species of the genus Prionospio are described and illustrated: Prionospio (Minuspio) multibranchiata Berkeley, 1927, P. (Prionospio) saccifera Mackie and Hartley, 1990, P. (P.) bocki Soderstrom, 1920, P. (P.) membranacea Imajima, 1990, and P. (P.) paradisea Imajima, 1990. These five species of spionid polychaetes are reported for the first time in Korean waters.

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Two species of Euchone (Polychaeta, Sabellidae) from the Yellow Sea and Kwang-yang Bay, Korea (황해와 광양만에서 채집된 홈꽃갯지렁이 속 Euchone (Polychaeta, Sabellidae)의 두 미기록종)

  • 정래홍;홍재상
    • Animal Systematics, Evolution and Diversity
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    • v.12 no.4
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    • pp.305-312
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    • 1996
  • Specimens of the sabellid polychaetes are exmined. They were collected in the Yellow Sea from Sept. 17 to Oct. 2, 1992 within the framework of Korea-China Yellow Sea Research Joint Program. Additional materials were also provided from the benthic samples collected from the subtidal shallow waters of the Kwang-yang Bay, Korea. Two secies of the genus Euchone (Polychaeta, Sabellidae), Euchone hancocki Banse and Euchone incolor Hartman are described and illustrated. This paper reports the first record of these two sabellids in Korea waters.

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A Systemaic Study on the Errantiate Polychaeta in Cheju Island (제주도산 유영목(Polychaeta, Errantia)의 분류학적 연구)

  • 노분조;이종위
    • Animal Systematics, Evolution and Diversity
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    • v.4 no.2
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    • pp.121-136
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    • 1988
  • 본 연구는 1969년 12월부터 1987년 10월까지 제주도의10개 지역 (제주항, 우도, 성산포, 표선, 서귀포, 숲섬, 화순, 가파도, 비양도, 한림)에서 채집된 표본들을 동정·분류한 결과(9과 31종)와 이미 발표된 종을 종합하여 제주도 연안의 유영목을 정리하였다. 그 결과 모두 11과 31속 45종이었다. 이들 중 4종 (Lepidasthenia berkeleyae, Brania clavata, Sphaerosyllis hirsuta 및 Ceratonereis singularis)은 한국미기록종이며, 13종은 제주도 연안에서만 발견되었다. 한국미기록종에 관하여는 그림을 그리고 기재하였다. 45종 중 난온수형이 22종 (48.89%)으로 가장 많았고, 범세계형이 10종(22.22%), 열대수형이 8종(17.78%), 냉온수형이 4f종(8.89%), 냉수형이 1종(2.22%) 의 순으로 나타났다. 난온수형이 가장 많이 나타난 현상은, 제주도가 위치하고 있는 해형, 즉 쿠로시오 난류의 영향을 크게 받고 있다는 사실과 부합된다.

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New records of one marine and two soil ciliates(Ciliophora: Intramacronucleata) from Korea

  • Park, Mi-Hyun;Min, Gi-Sik
    • Journal of Species Research
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    • v.8 no.1
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    • pp.113-115
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    • 2019
  • In this study, we present new records to Korea for three ciliate species[Apogonostomum pantanalense Foissner, 2016; Keronopsis polychaeta (Borror, 1966) Jankowski, 1979; Frontonia canadensis Roque and Puytorac, 1972] collected from marine (F. canadensis) and moss-covered soil(A. pantanalense and K. polychaeta) habitats. We examined the morphology of these three ciliates based on live observations and protargol impregnation. The main characters of the three ciliates are as follows: A. pantanalense: cell size approximately $130{\times}45{\mu}m$, tail-like posterior end, and 6 or 7 ventral cirral pairs elongated to transverse cirri; K. polychaeta: size approximately $140{\times}90{\mu}m$ and approximately 18 frontal coronal cirri and 5 transverse cirri; F. canadensis: cell size approximately $100{\times}50{\mu}m$ and approximately 88 somatic kineties, 3 or 4 vestibular kineties, and 5 postoral kineties.

A Taxonomic Study on Perinereis nuntia Species Group (Polychaeta: Nereididae) of Korea

  • Park, Tae-Seo;Kim, Won
    • Animal Systematics, Evolution and Diversity
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    • v.23 no.1
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    • pp.75-85
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    • 2007
  • A taxonomic study was carried out on the Perinereis nuntia species group of Korea by using morphological and molecular data (mitochondrial cytochrome c oxidase subunit I: mtCOI). Two species, P. mictodonta (Marenzeller, 1879) and P. wilsoni (Glasby and Hsieh, 2006), are recognized and redescribed. In this study, mtCOI gene showed a good resolution as molecular marker for species identification of the P. nuntia species group of Korea.

Scolelepis (Scolelepis) kudenovi (Polychaeta: Spionidae) new to Korea

  • Choi, Hyun Ki;Yoon, Seong Myeong
    • Journal of Species Research
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    • v.5 no.3
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    • pp.355-358
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    • 2016
  • A spionid polychaete, Scolelepis (Scolelepis) kudenovi Hartmann-Schroder, 1981, is newly reported from Korean waters with description and illustration. Scolelepis (Scolelepis) kudenovi is characterized by a combination of the following morphological features: the notopodial setae are present on the setiger 1; the occipital tentacle is absent; the branchiae are partially fused to the notopodial postsetal lamellae; the notopodial and neuropodial hooded hooks are bidentate only; the notopodial hooded hooks are present on the posterior setigers. A key to Scolelepis species from Korean waters is provided in this paper.

A Systematic Study on the Errantiate Polychaeta in Korea (한국산 유영류(다모강)의 분류학적 연구)

  • 노분조;이종위
    • Animal Systematics, Evolution and Diversity
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    • v.3 no.1
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    • pp.74-90
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    • 1987
  • 한국산 유영류(다모강)의 분류학적 연구의 일환으로 1965년부터 1986년까지 우리나라의 삼면연안과 도서지방(36개 지역)에서 채집된 표본을 동정 분류하였다. 그 결과 10과 20속 31종 2 종이 밝혀졌으며 그 중 4아종 1 아종(Amphinome rostrata, Haplosyllis tentaculata, Typosyllis aciculata orientalis, Typosyllis variegata, Glycera subaenea)은 한국미기록종으로 판명되었다. 눈썹참갯지렁이 (Perinereis nuntina)는 총 36개 지역 중 11개 지역에서 채집되었으며 , 총 600여 개체중 232 개체가 채집됨으로써 우리나라에 널리 분포해있는 종으로 나타났다. 동정 분류된 표본 중 한국과 일본 해역에만 분포하는 것은 3 종이었다.

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Salinity Effects on the Survival of the Metazooplankton in the Coastal Waters off the Seamankeum Areas

  • Kim, Seong-Taek;Kim, Jong-Hyeok;Pae, Se-Jin;Jeong, Hae-Jin
    • Journal of the korean society of oceanography
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    • v.38 no.4
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    • pp.211-215
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    • 2003
  • A huge freshwater reservoir (ca. 12,000 ha) will be created when the construction of a 33­km dike on a huge mud flat of the Saemankeum areas is established. A large quantity of freshwater will emerge to the adjacent sea from the reservoir through two big gates. Marine organisms outside the dike are expected to frequently experience low salinity waters. To investigate the salinity effects on the dominant metazooplankton in the coastal waters off Saemankeum areas, we measured the survival (Survival 1H and Survival 24H) of 11 different taxa (the copepods Acartia omorii, A. pacifica, Calanus sinicus, Centropages abdominalis, Paracalanus indicus, Pseudodiaptomus inopinus, Tortanus forcipatus, and a hydromedusa, and barnacle nauplius, polychaeta larva, and a chaetognath Sagitta sp.) at salinities of 0, 5, 10, 15, 20, 25, 30, 35, and 40 psu when the organisms were exposed for 1 and 24 h, respectively. Survival 1Hs of P. inopinus and barnacle nauplius were 100% between 5 and 35 psu, while they were 0% at salinities of 0 and 40 psu. Survival 1Hs of A. omorii and A. pacifica, P. indicus, T. forcipatus, and polychaeta larva were 100% at $salinities\;\geq\;10$ psu, while they were 0% at lower salinities. Survival 1Hs of a hydromedusa and Sagitta sp. were 100% at $salinities\;\geq\;15$ psu, while they were 0% at lower salinities. Survival 1H of C. abdominalis and C. sinicus was 100% at $salinities\;\geq\;20$ psu, while they were 0% at lower salinities. Survival 24Hs of A. omorii, A. pacifica, C. abdominalis, barnacle nauplius, and polychaeta larva were the same as Survival 1 Hs at the same salinity, while those of the other metazooplankton were lower than Survival 1Hs. The results of the present study suggest that low salinity water emerging from big gates may cause the death of the metazooplankton, but the salinities at which death of the metazooplankton occurs may differ by species.

First Report of Nereiphylla hera (Polychaeta: Phyllodocidae) from Korea

  • Choi, Hyun Ki;Jung, Tae Won;Yoon, Seong Myeong
    • Korean Journal of Environmental Biology
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    • v.33 no.3
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    • pp.279-282
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    • 2015
  • A newly recorded species, Nereiphylla hera Kato and Mawatari, 1999 which was originally described from northern Japan, was collected from East Sea in Korea. Our Korean materials of N. hera are distinguished from it congeners by the following characteristics that agree well with the original description of the species: the tentacular cirri are flat and spatulate with a narrow and distinct tip, reaching to segment 4-6, and boarder than their cirrophores; the parapodia possess elongated dorsal cirri. We provide a key for distinguishing the species of genus Nereiphylla from Korean waters.