• Title/Summary/Keyword: copepoda

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Study on Resources Annexation in Tongyeong Marine Ranching II. Change of Growth and Stomach Contents on Night-lights and Feeding Condition of Black Rockfish Sebastes inermis (통영 바다목장 자원조성을 위한 연구 II. 야간점등과 먹이공급 조건에 따른 볼락의 성장과 위내용물 변화)

  • Yoon, Ho-Seop;Choi, Sang-Duk
    • Korean Journal of Environmental Biology
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    • v.24 no.2 s.62
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    • pp.138-146
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    • 2006
  • The effects of night-lights on feeding by the black rockfish Sebastes inermis in the cage of the Tongyeong marine ranching area were investigated by analyzing the stomach contents of 200 individuals from July 2004 to August 2004. In night-lights groups, black rockfish consumed mainly copepoda, amphipoda and polychaeta; also those in control area fed on copepods, amphipods and polychaets. Copepods (57%) and amphipods (32%) were the major prey organisms for all study period in night-lights. While, major prey items in control area were copepods (88%). Growth of the black rockfish reared in night-lights conditions were significantly higher than that of those in control area.

Three Miraciid Copepods (Harpacticoida, Miraciidae) from South Korea

  • Chang, Cheon-Young
    • Animal Systematics, Evolution and Diversity
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    • v.25 no.3
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    • pp.215-225
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    • 2009
  • Three harpacticoid species of the family Miraciidae are reported from neritic and brackish waters in Korea: Amphiascus kawamurai Ueda and Nagai, 2005, Schizopera clandestina (Klie, 1924) and Schizopera neglecta Akatova, 1935. Amphiascus kawamurai is newly recorded from Korea. Redescription is provided with the systematic accounts and illustrations of them.

Taxonomy and distribution of Corycaeidae (Copepoda: Cyclopoida) in the Korean Waters in Summer (한국 연근해에서 하계에 출현하는 Corycaeidae (Copepoda : Cyclopoida)의 분류 및 분포)

  • KANG, YOUNG SHIL;HUH, SUNG-HOI;LEE, SAM SEUK
    • 한국해양학회지
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    • v.25 no.2
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    • pp.49-61
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    • 1990
  • The family Corycaeidae in the neighbouring seas of Korea was taxonomically studied based on the zooplankton samples collected in August, 1986. In this study, nine species belonging to two genera and three subgenera of the Corycaeidae were identified and described with illustrations; Corycaeus (Corycaeus) speciosus, G.(C.) crassiusculus, C. (Ditrichocorycaeus) affinis, C.(D.) andrewsi, C.(D.) erythraeus, C.(Onychocorycaeus) pacificus, c.(O.) catus, C.(O.) agilis, and Farranula gibbula. The distribution patterns of these species showed that C.(D.) affinis appeared to be and indicator species of the coastal waters, and C.(C.) speciosus, C.(C.) crassiusculus, c.(O.) catus, C.(D.) andrewsi, and Farranula gibbula appeared to be indicator species of the warm-oceanic waters.

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Two New Species of Orecturus (Copepoda: Siphonostomatoida: Asterocheridae) Associated with Octocorals from Korea (한국의 팔방산호류에 공생하는 넓은가슴노벌레속(대롱입요각목: 불가사리이과)의 요각류 2신종)

  • Il-Hoi Kim;Jun Im Song
    • Animal Systematics, Evolution and Diversity
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    • v.19 no.2
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    • pp.177-188
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    • 2003
  • Two new species of the genus Orecturus are described os associates of octocorals in Cheju Island, Korea. Orecturus longicaudatus n. sp. associated with a gorgonacean coral differs from its congeners by having a large body and a long anal somite. Orecturus similis n. sp., associated with an alcyonacean coral, is similar to O. excavatus but can be distinguished from it by possessing a single seta on the second segment of maxilla, the terminal claw of maxilliped which is evenly tapering, and the different ornamentation in legs 1 and 4.

On the Feeding Behavior of Zooplankton in Lake Soyang (소양호에서 동물 플랑크톤의 섭식작용에 관한 연구)

  • 심두섭;안태석
    • Korean Journal of Microbiology
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    • v.30 no.2
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    • pp.129-133
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    • 1992
  • Zooplankton feeding was investigated with epilluorescence microscope in Lake Soyang in August 1991. Zooplankton. which ingested fluorescence bead or fluorescently labeled bacteria (FLB). was regarded as bacterivore. The algavores wert. easily distinguished with autofluorescence of chlorophyll in gut. Copepoda nauplius and Copepodids. 7'hermocyclop.s spp, Pleosomcl spp. Brachionus spp were algavores. and DuphnB hpp. Bosmincr spp. Kerutrlla spp and Hrxuthru spp werc identified as bacterivc~res.T he mixo\ory was not detected. The percentages of algavores and bacterivores in Lake Hoyang were 65 7% and 34.3%. respectively. The bacterivorous zooplankton had trend to ingcst the beads bigger than 0.5 pm. Use of 0.5 pm bead as grazing tracer gave similar estin~ates of ingestion to FLR.

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