• 제목/요약/키워드: Cyclopoida

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단체 해초류(피낭류)에 공생하는 요각류 2종 (Two Species of Notodelphyid Copepoda (Cyclopoida) Associated with Solitary Ascidians (Tunicata))

  • 서인순;이경숙
    • Animal Systematics, Evolution and Diversity
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    • 제12권4호
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    • pp.289-304
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    • 1996
  • 동해와 남해에 서식하는 단체 해초류(사메아대추멍게 와 대충멍게류)의 체강내에서 요각류 2종이 채집되었다. 이들은 Lonchidiopsis hartmeyeri Vanhoffen, 1917과 Pachypygus curvatus Ooishi, 1961이며, 한국미기록종으로서 재기재하여 보고한다.

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거제시 구조라 및 망치 연안에 출현하는 까나리(Ammodytes japonicus) 자어의 식성 (Feeding Habits of the Larval Ammodytes japonicus in the Coastal Waters of Gujora and Mangchi of Geoje, Korea)

  • 강다연;남기문;최옥인;박경현;김병섭;김윤정;백근욱
    • 한국어류학회지
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    • 제32권2호
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    • pp.97-102
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    • 2020
  • 거제시 구조라 및 망치 연안에서 우점하여 출현한 까나리(Ammodytes japonicus) 자어는 조사기간인 2019년 1월과 2월 동안 총 208개체가 채집되었고 척생장의 범위는 1.46~8.00 mm였다. 까나리 자어의 주먹이생물은 요각류가 가장 우점하였고, 그 중 긴노요각목 요각류를 가장 많이 섭식하였으며, 검물벼룩목 요각류를 그 다음으로 많이 섭식하였다. 요각류 외에도 어류 난, 패충류, 갑각류 유생도 섭식하였으나 그 양은 많지 않았다. 까나리 자어의 성장에 따른 먹이생물 변화양상을 알아보기 위해 3개의 크기군으로 나누어 분석한 결과(≤2 mm, 3~4 mm, ≥5 mm, Notochord length), 성장함에 따라 긴 노요각목 요각류의 섭식비율은 점차 증가하고 검물벼룩목 요각류는 감소하였으며, 평균 먹이생물의 개체수와 부피 모두 증가하는 경향이 나타났다.

Halicyclops Copepods (Cyclopidae, Halicyclopinae) from Korea

  • Lee, Jimin;Chang, Cheon Young
    • Animal Systematics, Evolution and Diversity
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    • 제29권1호
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    • pp.36-50
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    • 2013
  • As one of the serial faunistic studies on the brackish cyclopoids from Korea, taxonomic accounts of three species of Halicyclops from various brackish waters in South Korea are provided, with detailed illustrations of them: H. uncus Ueda and Nagai, 2009, H. setiformis Ueda and Nagai, 2012, and H. itohi Ueda and Nagai, 2012. Halicyclops uncus is newly recorded from Korea, and the latter two species are corrected from H. sinensis sensu Chang, 2009 and H. cf. rotundipes sensu Chang, 2009, respectively. As a result, a total of seven species of the genus are now recognized in Korea, and a revised key to the species is presented.

뉴칼레도니아의 팔방산호류에 기생하는 Enalcyonium 속의 6신종(요각아강, 검물벼룩목, 산호속살이과) (Six New Species of Enalcyonium (Copepoda, Cyclopoida, Lamippidae) Parasitic in Octocorals from New Caledonia)

  • 김일회
    • Animal Systematics, Evolution and Diversity
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    • 제20권2호
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    • pp.141-154
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    • 2004
  • 뉴칼레도니아의 팔방산호에 기생하는 Enalcyonium 속의 요각류 6신종을 기재하였다. 이들은 해계두류 Lobophyton schoedei Moser에 기생하는 Enalcyonium lobophyti, E. humesi, E. caledonensis 및 E. auriculatum, 해양류 Rumphella antipathes (L.)에 기생하는 E. capillatum, 그리고 해양류 Siphonogorgia variabilis (Hickson)에 기생하는 E. bullatum이다. 이 논문은 남태평양산 Enalcyonium 속 요각류에 대한 첫 기록이다.

Three New Species of Hemicyclops (Copepoda, Cyclopoida, Clausidiidae) from Korea

  • Moon, Seong-Yong;Kim, Il-Hoi
    • Animal Systematics, Evolution and Diversity
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    • 제26권3호
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    • pp.279-293
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    • 2010
  • Three new species of Hemicyclops, H. parilis, H. nasutus and H. membranatus are described from Korean coasts. Hemicyclops parilis n. sp. is closely similar to H. gomsoensis Ho and Kim, but distinguishable from the latter species by having the different shape of genital double somite and spermatophore. Hemicyclops nasutus n. sp. is distinguishable from congeners by having five setae on the first segment of antennule and the ratio 4.26 : 1 of the length to width of caudal ramus. Hemicyclops membranatus n. sp. is characterized by the possession of the membranous fringe along margins of cephalothorax and a claw on the third antennal segment.

Zooplankton community distribution in shallow reservoirs during winter: Influence of environmental factors on Cyclops vicinus (Copepoda: Cyclopoida)

  • Choi, Jong-Yun;Jeong, Kwang-Seuk;Joo, Gea-Jae
    • Journal of Ecology and Environment
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    • 제37권2호
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    • pp.99-104
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    • 2014
  • We estimated the influence of environmental factors on zooplankton communities at 25 reservoirs during winter (December 2010 to January 2011). Among zooplankton groups, Cyclops vicinus is more dominant during winter, and this is positively related to withered vegetation area and dissolved oxygen level. Therefore, the presence of withered vegetation might be considered as an important factor to determine C. vicinus distribution during winter. We considered that withered vegetation might be utilized as a habitat for C. vicinus, as well as provide an attachment substrate for periphytic algae. Abundance of periphytic algae can lead to high concentration of dissolved oxygen. Although copepods prefer high water temperatures for increasing their population growth, if Cyclops can overcome low temperature stress that leads to disruption of population, their population growth initiation in the next growing season (i.e. next spring) is possibly propelled by the winter population.

Four Cyclopoid Species (Copepoda: Cyclopidae) from Limestone Caves and Lava Tube in South Korea

  • Lee, Ji-Min;Kim, Won-Rok;Choi, Yong-Gun;Chang, Cheon-Young
    • Animal Systematics, Evolution and Diversity
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    • 제23권2호
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    • pp.155-167
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    • 2007
  • As a result of the faunistic study on the subterranean cyclopoid copepods, four species of three genera in the family Cyclopidae are reported from nine limestone caves and a lava tube in South Korea: Megacyclops magnus (Marsh, 1920), Acanthocyclops orientalis Borutzky, 1966, A, robustus (Sars, 1863) and Diacyclops suoensis Ito, 1956, all of them new to Korean fauna. This paper deals with the taxonomic accounts and illustrations of the four species with the redescription of A. orientalis. This is the first taxonomic study on the cave-dwelling cyclopoid copepods from Korea.

The First Record of Monothula subtilis (Giesbrecht, 1893 ["1892"]) (Cyclopoida, Oncaeidae) in the Equatorial Pacific Ocean

  • Cho, Kyuhee;Kim, Woong-Seo
    • Ocean and Polar Research
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    • 제40권1호
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    • pp.23-35
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    • 2018
  • A small cyclopoid copepod M. subtilis (Giesbrecht, 1893 ["1892"]) belonging to the genus Monothula $B{\ddot{o}}ttger-Schnack$ and Huys, 2001 was collected by using $60{\mu}m$ mesh net and firstly recorded in the epipelagic layer of the equatorial Pacific Ocean. We redescribed its morphological characteristics for both female and male, comparing with those of previous studies. Specimens of M. subtilis from the equatorial Pacific Ocean differ from those previously reported by others in terms of the length of the seta G on antenna, being much shorter than setae E and F; in the distal spine on the swimming leg 4, being longer than the length of the third segment on P4. The outer spine of the P3 enp-3 in male is slightly over the tip of conical process. The spine lengths of the distal endopods of P2-P4 for both sexes showed variations among individuals, and the proportions of spine lengths in female are higher than those in male.

First record of the genus Cyclopinoides (Copepoda, Cyclopoida, Cyclopinidae) from the Pacific

  • Chang, Cheon-Young
    • Animal cells and systems
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    • 제15권1호
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    • pp.63-72
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    • 2011
  • A new species belonging to the genus Cyclopinoides Lindberg, 1953 (Cyclopinidae) is described from three beaches in Korea and Japan, as the first record of the genus from the Pacific. Among five species currently recognized in the genus, the new species resembles C. schulzi Herbst, 1964 from the Red Sea in sharing the character combination of 20-segmented antennule and stumpy caudal rami. However, C. orientalis n. sp. differs from it by relatively longer caudal rami (2.5-2.8 times as long as wide in female and about 1.6-1.8 times in male, while less than 2 times in female and about 1.3 times in male of C. schulzi), and by the transformation of an outer distal spine to a slender seta on the distal exopodal segment of leg 4. Moreover, C. orientalis n. sp. is discernible from C. schulzi in having a pyriform copulatory tube (against elongated tubular style in C. schulzi). A key to the species hitherto known in the genus is provided.

해초류에 공생하는 한국산 요각류 2종 (Two Species of Notodelphyid Copepods(Cyclopoida) Associated with Ascidians in Korea)

  • In-Soon Seo;Boon-Ju Rho
    • Animal Systematics, Evolution and Diversity
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    • 제14권2호
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    • pp.105-116
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    • 1998
  • 이화여자대학교 생물과학과에 보관중인 해초류(피낭류)로부터 요각류 2 미기록종이 발견되어 재기재하였다. 이 중에서 Doroixys uncinata Kerschner, 1879는 만두멍게과에 속하는 군체멍게인 미끈만두멍게[Aplidium glabrum(verrill,1871)]의 test로부터 발견되었고, Doropygus rigidus Ooishi, 1962는 미더덕과에 속하는 단체멍에인 유두멍게[Cnemidocarpa irene(Hartmeyer, 1906)]와 세줄미더덕(Styela tokiokai Nishikawa, 1991)의 새낭에서 발견되었다.

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