• 제목/요약/키워드: hydroids

검색결과 26건 처리시간 0.021초

한국산 유각변형충목 (Arcellinida) 및 유각사상근족충목 (Gromiida)의 계통분류학적 연구 (Systematic Study on the Marine Hydroids (Cnidaria: Hydrozoa) in Korea ll. The Families Sphaerocorynidae, Eudendriidae, Haleciidae and Lafofidae)

  • 박정희
    • 한국동물학회지
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    • 제34권4호
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    • pp.541-547
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    • 1991
  • Some Korean marine hvdroids of the families Sphaerocorynidae, Eudendriidae, Haleciidae and Lafoeidae were observed based on the external features. Thev were collected from the coasts and islands of Korea during the years 1971-1990 by the author and others. As a result12 species and subspecies are identified, of which 6 species: Sphaerocowne bedoti, Eudendrium insigne, Eudendrium cumeum, Hydrodendron gordineri, Acwptolaria confena austrolis and Crammaria obi'etinQ tuned out to be new to the Korean fauna, which are redescribed briefly. For already known species in Korean fauna, the materials examined for this work and previous rdcore given, and not examined but already known species in Korean waters the only previous records are given for definition of the hydroid taxa. So that the Korean hvdroids of four families identified so far consist of ten genera and 19 species.

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A New Record of Hydrodendron stechowi (Hydrozoa: Leptothecata: Phylactothecidae) from Korea

  • Jeong, Seung-Chan;Lee, Seung-Joon;Cho, In-Young;Hwang, Sung-Jin
    • Animal Systematics, Evolution and Diversity
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    • 제37권4호
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    • pp.335-339
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    • 2021
  • In 2020, during a survey of cnidarian fauna around Chuja-do locating in the northern part of Jeju-do, Korea, several hydroids were collected from the subtidal zone by SCUBA diving. Through taxonomic examination, one unrecorded species, Hydrodendron stechowi Hirohito, 1995, was found in Korea. It was newly added to the list of Korean hydrozoan fauna. This species was discovered for the first time since its first report as a new species in Japan. Their vivid orange-colored colonies were attached to the sponge on rocky substrate between depths of 15 and 20 m. Thus, a total of five species belonging to genus Hydrodendron, including the species reported in this study, have been reported in Korean waters so far.

A New Record of Epizoic Hydroid, Ectopleura radiata (Hydrozoa: Anthoathecata: Tubulariidae), from Korea

  • Ki-Hwan Lee;Seung-Joon Lee;Su-Hwan Sim;In-Young Cho;Sung-Jin Hwang
    • Animal Systematics, Evolution and Diversity
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    • 제39권1호
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    • pp.16-21
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    • 2023
  • In 2022, during a survey of intertidal fauna around Jindo located in the Dadohaehaesang National Park in the South Sea, epizoic hydroids attaching onto seagrass (Zostera sp.) growing on soft sediments were collected. Through taxonomic examination, an unrecorded species, Ectopleura radiata, is newly added to the hydrozoan fauna of Korea. In addition, DNA barcoding for species from Ectopleura and Tubularia clarified the distinction among morphologically indistinguishable species without gonophores. Up to now, only one species, E. crocea, has been reported in Korea. Through this study, a total of two species belonging to genus Ectopleura have been reported in Korean waters so far.

A New Species of Antennella (Hydrozoa: Leptothecata: Halopterididae) from Korea

  • Hyo-Jin Yu;Seung-Joon Lee;Sung-Jin Hwang
    • Animal Systematics, Evolution and Diversity
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    • 제40권1호
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    • pp.79-87
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    • 2024
  • A taxonomic examination of hydroids collected from the subtidal zones of Ulleungdo and Dokdo located in the East Sea of Korea from 2017 to 2023 was conducted. Through this study, Antennella aurantia n. sp., a new species belonging to the family Halopterididae, was newly added to the hydrozoan fauna of Korea. This new species is clearly distinguished from similar species by the different morphology and size of the hydrothecae, lateral nematothecae, and gonothecae. By comparing the 16S rRNA sequence with 7 recorded species within the Antennella, the interspecific genetic distance to the new species was 8.2-28.9%, which is very high compared to the intraspecific variation of 0.0%, showing that it was clearly distinguished from other species. As a result of this study, a total of 4 Antennella species are reported in the hydrozoan fauna of Korea.

한국해산(韓國海産) 히드라충류(蟲類)의 계통분류학적(系統分類學的) 연구(硏究) 9. 테히드라과(科) (A Systematic Study on the Marine Hydroids in Korea 9. The Family Sertulariidae)

  • 박정희;노분조
    • Animal Systematics, Evolution and Diversity
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    • 제spc1호
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    • pp.1-52
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    • 1986
  • 한국(韓國) 해산(海産) 히드라충류(蟲類)의 계통분류학적(系統分類學的) 연구(硏究)의 일환(一環)으로서 1965년부(年)부터 1984년(年)까지 우리 나라의 삼면연안(三面沿岸)과 도서지방(島嶼地方) (60개(個) 지역(地域))에서 채집(採集)된 테히드라류의(類) 표본(標本)을 동정(同定) 분류(分類)하였고 아울러 분포(分布)도 고찰(考察)하였다. 그 결과(結果) 2아과(亞科) 10속(屬) 40종(種)이 밝혀졌으며 이 중(中)에서 21종(種)은 한국미기록종(韓國未記錄種)으로 판명(判明)되었다. 가로테히드라 (Sertularella miurensis) 가 가장 흔한 종(種)으로서 우리나라의 전해역(全海域)에 널리 분포(分布)되어 있었고 40종중(種中) 24종이(種) 일본해역(日本海域)과 공유(共有)되어 있었다. 테히드라류의(類) 군집계수(群集係數)에 근거(根據)한 우리나라의 두 해역간(海域間)의 연관(聯關)은 남해(南海)와 황해(黃海)사이가 가장 높았고 남해(南海)와 동해(東海)사이가 그 다음이며 동해(東海)와 황해(黃海)사이는 가장 낮은 것으로 나타났다.

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광양만 잘피밭에 서식하는 감성돔(Acanthopagrus schlegeli) 유어의 식성 (Feeding habits of juvenile Acanthopagrus schlegeli in the eelgrass(Zostera marina) bed in Kwangyang Bay)

  • 허성회;곽석남
    • 한국어류학회지
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    • 제10권2호
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    • pp.168-175
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    • 1998
  • 광양만 대도주변 잘피밭에서 채집된 감성돔 유어의 식성을 조사하였다. 감성돔(1~7cm SL)의 주요 먹이생물은 단각류(옆새우류 및 카프렐라류), 게류 및 새우류였으며, 그 외 복족류, 갯지렁이류, 히드라류, 주걱벌레붙이류, 요각류, 등각류 등이 소량씩 위내용물 중 발견되었다. 감성돔은 성장함에 따라 먹이생물의 조성이 정차 변하였다. 체장이 작은 감성돔은 옆새우류, 카프렐라류, 갯지렁이류 및 복족류를 주로 먹었으나, 체장이 중가하면서 옆새우류, 갯지렁이류 및 복족류의 비율은 점차 낮아진 반면, 게류 및 새우류가 차지하는 비율은 증가하였다.

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