• 제목/요약/키워드: Marine animal

검색결과 740건 처리시간 0.022초

Growth and Estimated Production of Acanthogobius flavimanus in an Eelgrass (Zostera marina) Bed and Unvegetated Tidal Flat of Dongdae Bay

  • Kwak, Seok-Nam;Huh, Sung-Hoi;Kim, Ha-Won
    • Animal cells and systems
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    • 제13권3호
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    • pp.315-321
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    • 2009
  • The growth and estimated production of Acanthogobius flavimanus (1.9${\sim}$24.7 cm TL) were investigated in an eelgrass bed and unvegetated tidal flat of Dongdae Bay, Korea from March 2006 to February 2007. Growth in fish total length was expressed by the von Bertalanffy's growth equation as: $L_t=43.238(1-e^{-03138(t+02507)})$. Estimated densities, biomass, daily and annual production, and P/B ratio were higher at eelgrass bed than those of at unvegetated tidal flat. Monthly variation in daily production was large; the peak numbers occurred in November 2006 ($0.0014g/m^2$/day) at eelgrass bed, whereas was $0.002g/m^2$/day in July 2006 at unvegetated tidal flat. The eelgrass bed has been supported to maintain capacity of higher production of A. flavimanus than those of in unvegetated tidal flat.

한국산 돌기 발갯고사리류와 단단한갯고사리류(극피동물문, 바다나리강, 바다나리목)의 2미기록종 (Two Newly Recorded Species of Colobometridae and Calometridae(Echinodermata, Crinoidea, Comantulida) in Korea)

  • Sook Shin;Won, Jung-Hye
    • Animal Systematics, Evolution and Diversity
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    • 제18권2호
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    • pp.245-252
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    • 2002
  • 제주도와 거문도 욕지도의 조하대에서 채집된 갯고사리류를 동정 분류한 결과, 바다나리목 (Comantulida), 돌기발갯고사리과 (Colobometridae)의 범무늬갯고사리 Oligometra chinensis A. H. Clark 1918와 단단한갯고사리과 (Calometridae)의 비단갯고사리 Neometra multicolor (A. H. Clark. 1907)가 한국 미기록종으로 밝혀져 보고한다. 그리고 단단한갯고사리과는 우리나라에서 처음으로 보고된다.

울릉도 해안 익형아강(연체동물문: 이매패강) (Pteriomorphia (Mollusca : Bivalvia) from Ullng Island , Korea)

  • Byung Lae Choe;Won Kim;Jong Rak Lee;Sook Hee Yoon
    • Animal Systematics, Evolution and Diversity
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    • 제10권1호
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    • pp.61-83
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    • 1994
  • 1989년 6월부터 1992년 8월까지 울릉도의 13개 지점에서 채집된 해산 이매패류를 조사한 결과 익형아강(Pteriomorphia)에 속하는 9과 33종(아종)이 채집되었다. 이들은 모두 울릉도 미기록 종이며, 이들 중 Modiolus(Modiolus) comptus Sowerby, 1915, Gregariella coralliophaga(Gmelin, 1971), Musculus(Musculus) laevigatus(Gray, 1824), Chlamys(Coralichlamys) jousseaumei Bavay, 1904, Spondylus(Spondylus) varius Sowerby, 1829 등 5종은 한국 미기록종으로 밝혀졌기에 이들을 재기재 하였다.

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한국 해산 오수무척추동물의 생물계통학적 연구 - 춘도(온산만) 해초류의 분류 - (Biosystematic Studies on the Marine Fouling Invertebrates in Korea- A Systematic Study on the Ascidians from Chundo Island(Onsan Bay), Korea-)

  • 노분조;최병래;송준임
    • Animal Systematics, Evolution and Diversity
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    • 제12권3호
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    • pp.221-235
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    • 1996
  • "한국 해산 오수무척추동물의 생물계통학적 연구"의 일환으로서 공업단지로 둘러싸 인 온산만의 춘도를 택하여 1995년 2월과 7월, 그리고 1996년 2월에 위 연구의 SCIBA Team에 의해 수심 10m 미만에서 채집된 해초류를 분류하였다. 그 결과 6과 8속 15종이 밝 혀졌으며 이들 중 2종은 한국미기록종이었다. 이들은 Ascidia sydneiensis Stimpson(꾸러기 대추멍게)와 Ascidia zara Oka(자라대추멍게)이며 이들 종에 대하여는 간단한 기재와 그림 을 그려 설명하였고 그 외 13종의 기지종에 대하여는 춘도 이외의 지역에서 보고된 기재와 차이가 나는 점을 "특기"로 하여 설명하였다.;특기"로 하여 설명하였다.명하였다.

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First Record of Aliaporcellana and Lissoporcellana (Crustacea: Decapoda: Porcellanidae) from Korea

  • Lee, Sanghui;Park, Jin-Ho;Kim, Won
    • Animal Systematics, Evolution and Diversity
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    • 제31권3호
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    • pp.191-200
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    • 2015
  • Two porcelain crab species, Aliaporcellana pygmaea (De Man, 1902) and Lissoporcellana nakasonei (Miyake, 1978), are reported here for the first time from Korean waters based on specimens collected from Jeju Island, Korea. The genus Aliaporcellana Nakasone and Miyake, 1969, and Lissoporcellana Haig, 1978 are also reported here for the first time in Korea. Aliaporcellana pygmaea has a wide distribution. The specimen reported here is the most northern record of this species. While, Lissoporcellana nakasonei, associated with anthozoans, was known for distributing range from New Caledonia to southern Japan. As a result, the distribution rage of L. nakasonei is changed to Korea. Now, 12 species of porcelain crabs have been reported in Korean waters.

A Report on Five New Records of Nudibranch Molluscs from Korea

  • Jung, Daewui;Lee, Jongrak;Kim, Chang-Bae
    • Animal Systematics, Evolution and Diversity
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    • 제30권2호
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    • pp.124-131
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    • 2014
  • The Korean nudibranch faunal study has been conducted since 2011 and five species including Dermatobranchus otome Baba, 1992, Mexichromis festiva (Angas, 1864), Noumea nivalis Baba, 1937, Hoplodoris armata (Baba, 1993), and Okenia hiroi (Baba, 1938) were newly reported with re-descriptions and figures. Also, Noumea purpurea Baba, 1949 was re-described with illustrations because previous records for this species were given without a description. Two congeneric species in the genus Noumea could be distinguished by ground color, dorsal markings, color of the mantle edge and gills, and mantle and dorsal marking. In addition, mitochondrial cytochrome c oxidase subunit I (COI) sequences of five species were provided for further molecular identification study. Consequently, a total of 43 species have been reported for the Korean nudibranch fauna.

Dendrodasys duplus, a New Gastrotrich Species (Macrodasyida: Dactylopodolidae) from South Korea

  • Lee, Jimin;Chang, Cheon Young;Kim, Dongsung
    • Animal Systematics, Evolution and Diversity
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    • 제30권2호
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    • pp.103-107
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    • 2014
  • A new gastrotrich species of the genus Dendrodasys (Dactylopodolidae) is described on the basis of specimens collected from sublittoral fine sandy bottoms at Uljin, East Sea and at Gujwa, the northeastern coast of Jeju Island, South Korea. Dendrodasys duplus is characterized by a triangular head with lateral lobes extending outward, two pairs of pestle organs posterior to the lateral cephalic lobes, a pair of anterior adhesive tubes, the absence of dorsal, lateral and ventral adhesive tubes, large posterior adhesive tubes arising from the anterior third of the caudal peduncle, and paired testes of different lengths. The genus Dendrodasys is recorded for the first time in East Asia.

First Zoeal Stage of Camptandrium sexdentatum (Crustacea: Decapoda: Camptandriidae)

  • Park, Jay Hee;Ko, Hyun Sook
    • Animal Systematics, Evolution and Diversity
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    • 제30권4호
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    • pp.235-239
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    • 2014
  • The first zoea of Camptandrium sexdentatum is described for the first time with a digital image of live zoeas. An ovigerous crab of C. sexdentatum was collected at the muddy sand flat in Namhaedo Island on 2 June 2012 and hatched in the laboratory on 6 June 2012. In Camptandriidae, the first zoea of C. sexdentatum is distinguished from the first zoeas of Cleistostoma dilatatum and Deiratonotus cristatum by having no dorsal and lateral carapace spines, an abdomen significantly broadened posteriorly, and a subovoid telson without forks. Especially, the finding of a subovoid telson without forks is the first report in brachyuran zoeas.

적조생물구제농도의 Sodium Hypochlorite(NaOCl)의 노출에 따른 조피볼락 및 바지락의 조직학적 영향 (Histological Effect of Sodium Hypochlorite (NaOCl), Exposed at Red Tide-killing Concentrations, in Rockfish and Little Neck Clam)

  • 한조희;김영석;허민도;정해진;박관하
    • Environmental Analysis Health and Toxicology
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    • 제16권2호
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    • pp.67-74
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    • 2001
  • In a previous study by Kim et al. (2000), sodium hypochlorite (NaOCl) has been demonstrated to be effective against algae that cause red tides. To secure the environmental safely of the chemical in practical use, effect of NaOCl, at concentrations required for algicidal activity, on the histology of rockfish and little neck clam was examined. When the animals were exposed to NaOCl at concentrations of 0.5 or 2ppm for 1 hr, there was no exposure-associated histological change in either animal. As the experimental exposure condition was set in consideration of the use, our results provide safety information necessary for practical application to marine fields.

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Taxonomic study on bryozoans - new additions to the Korean fauna and new species of Petraliella from Seogwipo waters of Jeju Island

  • Chae, Hyun Sook;Kil, Hyun Jong;Seo, Ji Eun
    • Journal of Species Research
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    • 제5권3호
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    • pp.551-565
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    • 2016
  • This study aims to clarify the diversity of bryozoans which were collected from Seogwipo waters in Jeju Island, Korea. A total of 78 species has been reported from Seogwipo waters so far. In the present study, 63 species were found from nine sites of Seogwipo waters from 2008 to 2012, including six newly added species to the Korean bryozoan fauna and twelve species new to Seogwipo waters. As a result of this study, the bryozoans from Seogwipo waters were turned out to be 96 species, 64 genera, 42 families, three orders and two classes.