• Title/Summary/Keyword: Poecilostomatoida

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Analysis of the Generations of Pseudomyicola spinosus (Copepoda, Poecilostomatoida) from the Blue Mussel, Mytilus galloprovincialis in the Yongsan River Estuary (영산강 하구의 진주담치에 기생하는 Pseudomyicola spinosus(요각류)의 세대해석)

  • 최상덕;서해립
    • 한국해양학회지
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    • v.26 no.2
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    • pp.101-107
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    • 1991
  • We report on the seasonal fluctuation of a Poecilostomatoida copepod, Pseudomyicola spinosus associated with the blue mussel, Mytilus galloprovincialis in the Yongsan River estuary (34$^{\circ}$47N, 126$^{\circ}$27'E). P. spinosus has four generations a year, seasonally succeeding each other. The generation that occurs during summer has the highest number of individuals. From June to October with the exception f September, males dominated while female outnumbered from November to May with the exception of January. It is possible to find ovigerous females all year with the exception of February. The largest number of ovigerous females occurs a month earlier than copepodids do. The percentage of C1 to C3 is approximately 4% of the total number of copepodids, indicating that in situ infestation by copepodids mainly occurs in C4 stage.

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A report on Acanthochondria spirigera from the gills of Lophiomus setigerus in the southern coast of Korea (남해안 아귀(Lophiomus setigerus) 아가미에 기생하는 Acanthochondria spirigera에 관하여)

  • Choi, Sang-Duk;Hong, Sung-Yun;Jung, Choom-Goo
    • Journal of fish pathology
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    • v.9 no.2
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    • pp.127-135
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    • 1996
  • Acanthochondria spirigera is redescribed based on the specimens recovered from the Lophiomus setigerus in the southern coast of Korea. This parasitic copepoda is distinguished from congeners by the possession of spirally twisted egg-strings. Acanthochondria spirigera(Chondracanthidae, Poecilostomatoida) is the first recorded species from Korea. This parasitic copepod was not found on the fish in May. Relative density and prevalence also decreased from January to May. A. spirigera live symbiotically within the pharyngeal cavity of the L. setigerus, and eat oesophageal mucous string of their hosts. The male of the parasitic copepoda is dwarf, and found on the ventral surface of genital segment of the female.

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Two species of copepods (Crustacea) parasitic on marine fish, Konosirus punctatus, from Kamak Bay in Korea (한국산 어류 (전어)에 기생하는 요각류 2종 (Nothobomolochus thambus, Mitrapus heteropdus))

  • Choi, Sang-Duk;Hong, Sung-Yun;Rho, Yong-Gil
    • Journal of fish pathology
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    • v.8 no.1
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    • pp.1-11
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    • 1995
  • Two species of the parasitic copepods, Nothobomolochus thambus (Poecilostomatoida, Bomolochidae) and Mitrapus heteropodus (Siphonostomatoida, Lernanthropidae), were recovered on the gills of a marine fish, Konosirus punctatus (Temminck and Schlegel) taken from Kamak Bay in Korea. N. thambus is very distinguishable in the armature of maxilliped from all other species of Nothobomolochus; one of the two strong, hairy setae has become naked. M. heteropodus is very distinguishable in the armature of leg 4; the inner process (endopod) is only about one - fifth the length of the outer process (exopod), Both parasitic copepod species are new to the Korean fauna.

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A New Genus and Two New Species of Copepoda(Poecilostomatoida, Sabelliphilidae) Associated with the Tubicolous Polychaetes in the Yellow Sea

  • Hoi, I-I
    • Animal cells and systems
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    • v.5 no.1
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    • pp.1-9
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    • 2001
  • Terebelliphilus simplex n. gen., n. sp. and Myxomolgus invulgus n. sp. are described from the tubicolous polychaetes found in the intertidal shores in the Yellow Sea. The new genus Terebelliphilus belongs to the family Sabelliphilidae but is characteristic in bearing the reduced segmentations In legs 1-4, an unusual sexual dimorphism in antennule, and the ventral location of genital areas. Myxomolgus invulgus is readily distinguishable from its congeners by the morphological features of rostrum, antennule, mandible, maxilla, leg 4 and female leg 5.

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Pseudanthessius spinosus, a New Species of Copepoda (Poecilostomatoida, Pseudanthessiidae) Associated with the Echinoid Clypeaster japonicus from Korea

  • Shin, Sook;Kim, Il-Hoi
    • Animal cells and systems
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    • v.8 no.1
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    • pp.13-18
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    • 2004
  • Pseudanthessius spinosus n. sp. is described as an associate of the sea urchin Clypeaster japonicus Doderlein from Cheju Island in Korea. The new species may be easily distinguished from its congeners by having four spines and five setae on the third exopodal segment of leg 4. It is the second known species of the genus from Korean waters.

Copepod Parasites of Commercial Bivalves from Korea I. Two New Poecilostomatoid Species from Solen grandis Dunker in the Yellow Sea (한국산 식용 이매패류에 기생하는 요각류 1. 황해의 죽합 (Solen grandis Dunker) 에 기생하는 요각률2 신종)

  • 김일회;주세이호
    • Animal Systematics, Evolution and Diversity
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    • v.7 no.1
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    • pp.1-12
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    • 1991
  • Two new poecilostomatoid copepods , Leptinogaster digita n.sp. and Hermannella soleni n.sp., parasitic in a bivalve Solen grandis Dunker , are described from the Yellow Sea coast of southwest Korea.

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Hamaticyclops ahni, a New Genus and Species of the Family Clausidiidae (Crustacea, Copepoda, Poecilostomatoida) from California, United States

  • Kim, Il-Hoi
    • Animal Systematics, Evolution and Diversity
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    • v.31 no.4
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    • pp.304-310
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    • 2015
  • Hamaticyclops ahni is described as a new genus and species from the Californian shore of the United States. It was discovered as a victim of the sea anemone Anthopleura elegantissima (Brandt). The new genus is closely related to the genus Hemicyclops but possesses, as significant autapomorphies, three strong claws on the second endopodal segment of antenna and a markedly elongate exopod of leg 5 with its protopod fused to somite.

Zamolgus cavernularius n. sp. (Copepoda, Poecilostomatoida, Rhynchomolgidae) Associated with a Pennatulacean in the Yellow Sea

  • Kim, Il-Hoi
    • Animal cells and systems
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    • v.4 no.3
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    • pp.251-255
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    • 2000
  • Zamolgus cavenularius n. sp. is described from the pennatulacean cnidarian Cavernularia obesa Milne Edwards and Hailme in the Yellow Sea. The new species is readily distinguished from its congeners by the genital doublesomite, mandible, female maxilliped, and other structures. This is the first report on association of a member of Zamolgus with the pennatulacean and the second report on a copepod from the Korean pennatulacean.

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Zygomolgus dentatus n. sp. (Copepoda, Poecilostomatoida, Lichomolgidae) from Korea, with Synonymization of the Genus Lichomolgides with Zygomolgus

  • Kim, Il-Hoi
    • Animal cells and systems
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    • v.10 no.3
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    • pp.169-173
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    • 2006
  • Zygomolgus dentatus n. sp. is described based on specimens from washings of compound ascidians from intertidal shores of Korea. It possesses the long caudal rami which are 5.6 times as long as their width, four scales on the convex side of mandible, and three setal elements and a large process on maxillule. Lichomolgides cuanensis Gotto, the only representative of the genus Lichomolgides, is transferred to the genus Zygomolgus.

Two species of Parasitic Copepods (Clavellopsis hugu and Taeniacanthus yamagutii) from the Cultured Marine Fish, Takifugu obscurus, from the Western Coast of Korea (양식 황복에서의 요각류(Clavellopsis hugu, Taeniacanthus yamagutii) 기생에 관한 국내보고)

  • Choi, Sang-Duk;Hong, Sung-Yun;Park, Kwang-Jae
    • Journal of fish pathology
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    • v.11 no.2
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    • pp.119-127
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    • 1998
  • Two species of the parasitc copepods, Clavellopsis hugu (Lemaeopodidae; Siphonostomatoida) and Taeniacanthus yamagutii (Taeniacanthidae; Poecilostomatoida) from cultured Korean fish, Takifugu obscurus, is described and reported for the first time in Korea. The parasite was recovered from the buccal cavity, nose and skin. Clavellopsis hugu is easily identified by the body shape, 2nd antenna, mandible and 2nd maxillae. In female, cephalothorax flexed dorsally, second antenna biramose, mandible with serrate blade, second maxillae completely fused at base of cephalothorax. In male, cephalothorax and trunk fused into an ovoid, two pairs of maxillipeds chelate. The most distinctive features of Taeniacanthus yamagutii are terminal process of second maxilla stout, maxilliped claw with conspicuous digitiform process at base and a setiform element at the tip of each exopod spine of legs 2-4. Both parasitic copepod species are new to the Korean fauna. The korean fish, Takifugu obscurus should be considered as an additional host of this species because these parasite were recovered from the western coast of Korea (Boryung Hatchery).

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