• Title/Summary/Keyword: New Caledonia

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Copepods (Crustacea) Associated with Marine Invertebrates from New Caledonia (뉴칼레도니아의 해산 무척추동물에 공생하는 요각류(갑각강))

  • Kim, Il-Hoi
    • Animal Systematics, Evolution and Diversity
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    • no.spc4
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    • pp.1-167
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    • 2003
  • Copepods associated with marine invertebrates are recorded from New Caledonia. Included are three new genera and 30 new species which are distributed in the poecilostomatoid and siphonostomatoid genera Anchimolgus (5 new species), Jamescookina (2), Odontomologus (2), Schedomolgus (3), and Scyphuliger (5) in the Anchimolgidae; Pterioidicola n. gen. (1) in the Lichomolgidae; Critomolgus (3), Doridicola (1), Paramolgus (1), and Pachysericola n. gen. (1) in the Rhynchomolgidae; Ruhtra n. gen. (1) in an uncertain family; and Asteropontius (5) in the Asterocheridae. Copepods new to New Caledonia and new host records are also included. Lists of 251 species of copepods known hitherto from New Caledonia and their 163 species of invertebrate hosts are provided, as well.

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

  • Kim Il-Hoi
    • Animal Systematics, Evolution and Diversity
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    • v.20 no.2
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    • pp.141-154
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    • 2004
  • Six new species of the genus Enalcyonium are described as parasites of octocorals of New Caledonia. They are Enalcyonium lobophyti, E. humesi, E. caledonensis, and E. auriculatum from the alcyonacean Lobophyton schoedei Moser, E. capillatum from the gorgonacean Rumphella antipathes (L.), and E. bullatum from the gorgonacean Siphonogorgia variabilis (Hickson). This is the first record on the species of Enalcyonium from the South Pacific.

A New Species of Arca L., 1758 (Bivalvia: Arcidae) from New Caledonia, with Comments on the Genus

  • Lutaenko, Konstantin A.;Maestrati, Philippe
    • The Korean Journal of Malacology
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    • v.23 no.2
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    • pp.155-164
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    • 2007
  • A new species, Arca koumaci Lutaenko et Maestrati n. sp. (Bivalvia: Arcidae), is described from New Caledonia. The species is characterized by the small size, the convex shell with a strong posterior umbonal ridge covered by spikes, the widely curved ventral margin, and presence of cancellate sculpture and convergent marginal teeth. Presence of spikes on the posterior ridge is a unique morphological feature recorded for the first time in the genus. It is proposed that the only subgenus, namely Pliocene A. (Arcoptera) Heilprin, 1887, apart from nominative, can be recognized in the genus. Three morphological types are distinguished within the genus based on shell shape and sculpture. Bathymetric analysis shows that representatives of Arca inhabit water depths down to 175 m, and more than half of Recent species were found below 50 m. Types of A. bouvieri P. Fischer, 1874, Arca boucardi Jousseaume, 1894, Arca avellana Lamarck, 1819, and Arca retusa Lamarck, 1819 are illustrated.

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Immunogenicity and protective effects of a novel reassortant influenza live virus, NC-22-8

  • Chung, Young-Mee;Kim, Seong-Woo;Chun, Hyung-Ok;Kim, Young-Gi;Kim, Hyun-Ah;Kim, Yeon-Hee;Ha, Suk-Hoon;Chae, Myeong-Yun;Park, Wan-Je
    • Proceedings of the PSK Conference
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    • 2003.10b
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    • pp.135.3-136
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    • 2003
  • In the present study, type A influenza live virus, NC-22-8, which is a combination of a cold-adapted attenuated donor virus (HTCA-A101) and a wild type virus (A/New Caledonia/20/99), was constructed and the efficacy of this new virus was assessed by immunogenicity and protection tests in the mouse model. NC-22-8 (1'$10^7, 1'10^5, 1'10^3$ pfu/mouse) was intranasally administered to mice. Four weeks later, the titers of specific IgG and haemagglutinin inhibiton (HI) were measured from blood and the titer of secretary IgA (sIgA) was also detected from boncho alveolar lavage (BAL) and mucosal fluid. (omitted)

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Mineralogy of Garnierite from New Caledonian Ni Lateritic Ore (뉴칼레도니아 니켈 라테라이트 광석 내 가니어라이트의 광물학적 특징)

  • Cho, Hyen-Goo;Kim, Soon-Oh;Kim, Sang-Bae
    • Journal of the Mineralogical Society of Korea
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    • v.24 no.4
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    • pp.253-263
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    • 2011
  • Mineralogical characteristics of garnierite ores from the Nakety, Kouaoua, and Ouaco Ni laterite deposits in New Caledonia are investigated using optical microscopy, powder X-ray diffractometer, and electron proble microanalyzer. Green garnierite ores have colloform, cellular, and boxwork texture, which are formed by precipitation under low temperature surface environment. They are mainly composed of Ni-bearing talc~willemseite series mineral and partly of lizardite. In Ni-bearing talc~willemseite series mineral, NiO contents are Ouaco (average 40.63%), Nakety (average 28.58%), and Kouaoua (average 24.90%), in descending order. Ni atomic percentage replacing Mg in octahedral site are 43.5~85.0%. Dark brown garnierite ores show cellular or boxwork texture, and consist of lizardite~Ni lizardite with some Ni-bearing talc~willemseite series mineral. Ni contents in lizardite~Ni lizardite are 1.14~4.06 wt. % and Ni atomic percentage replacing Mg in octahedral site 1.7~6.8%. Low NiO content in dark brown garnierite attributes to high Fe content replacing Mg in octahedral site.

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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    • v.31 no.3
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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.

Asbestos and Environmental Disease (석면과 환경성 질환)

  • Ahn, Jong-Ju
    • Journal of Environmental Health Sciences
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    • v.35 no.6
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    • pp.538-541
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    • 2009
  • Humans have a long history of asbestos use. There are reports from the Roman era, of asbestos victims among the slaves who worked in asbestos mines. The fact that asbestos can induce lung cancer and mesothelioma was verified epidemiologically in the 1960s. Asbestos related diseases are predominantly occupational in nature but can be caused by environmental exposure. Environmental mesothelioma is mainly associated with tremolite asbestos and this information comes from many countries including Turkey, Greece, Corsica, New Caledonia and Cyprus. In 1993, the first case of mesothelioma in Korea was reported in an asbestos textile worker. Recently, some asbestos disease victims who lived near an asbestos factory have their cases before the courts. A series of recent asbestos-related events in Korea, for example, the shocking revelation of asbestos containing talc in baby powders have caused the general public to become aware of the health risks of asbestos exposure. Asbestos related diseases are characterized by a long latency period, especially, mesothelioma which has no threshold of safety. Hence the best strategy for preventing asbestos related diseases is to decrease asbestos exposure levels to as low as possible.

Phylogenetic Analysis of Hepatitis B Virus Genome Isolated from Korean Patient Serum

  • Kim, Seon-Young;Kang, Hyen-Sam;Kim, Yeon-Soo
    • Journal of Microbiology and Biotechnology
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    • v.10 no.6
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    • pp.823-828
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    • 2000
  • The complete nucleotide sequence of hepatitis B virus DNA isolated from Korean patient serum was determined and characterized, and its phylogenetic relation was then investigated. The viral genome was 3,215 base pairs long and included four well known open reading frames (i.e. surface antigens, core antigens, X protein and DNA polymerase). The sequence of the surface antigen showed that the HBV genome under investigation, designated HBV 315, was characteristic of subtype adr. A phylogenetic analysis using the total genome sequence revealed that HBV315 was grouped into genomic group C together with isolates from Japan, China, Thailand, Polynesia, and New Caledonia. The mean percent similarity between HBV315 and other HBV isolates in genomic group C was 97.25%, and that with other genomic groups ranged from 86.16% to 91.25%. The predicted amino acid sequences of HBV315 were compared with two closely related subtype adr isolates, M38636 and D12980. The results showed that the X gene product was identical in the three strains, while there were significant amino acid sequence differences between HBV315 and M38636 in the Pre-S1 and Pre-S2 regions.

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Molecular Characterization and Phylogenetic Analysis of Season Influenza Virus Isolated in Busan during the 2006-2008 Seasons (부산지역에서 유행한 계절인플루엔자바이러스의 유전자 특성 및 계통분석('06-'08 절기))

  • Park, Yon-Koung;Kim, Nam-Ho;Choi, Seung-Hwa;Lee, Mi-Oak;Min, Sang-Kee;Kim, Seong-Joon;Cho, Kyung-Soon;Na, Young-Nan
    • Journal of Life Science
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    • v.20 no.3
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    • pp.365-373
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    • 2010
  • To monitor newly emerged influenza virus variants and to investigate the prevalence pattern, our laboratory performed isolation of the viruses from surveillance sentinel hospitals. In the present study, we analysed influenza A/H1N1, A/H3N2, B viruses isolated in Busan during the 2006/07 and 2007/08 seasons by sequence analysis of the hemagglutinin (HA1 subunit) and neuraminidase (NA) genes. The isolates studied here were selected by the stratified random sample method from a total of 277 isolates, in which 15 were A/H1N1, 16 were A/H3N2 and 29 were B. Based on the phylogenetic tree, the HA1 gene showed that A/H1N1 isolates had a 96.7% to 97.7% homology with the A/Brisbane/59/2007, A/H3N2 isolates had a 98.4% to 99.7% homology with the A/Brisbane/10/2007, and B isolates had a 96.5% to 99.7% homology with the B/Florida/4/2006(Yamagata lineage), which are all the vaccine strains for the Northern Hemisphere in 2008~2009 season. In the case of the NA gene, A/H1N1 isolates had 97.8% to 98.5% homologies, A/H3N2 isolates had 98.9% to 99.4% homologies, and B isolates had 98.9% to 100% homologies with each vaccine strain in the 2008~2009 season, respectively. Characterization of the hemagglutinin gene revealed that amino acids at the receptor-binding site and N-linked glycosylation site were highly conserved. These results provide useful information for the control of influenza viruses in Busan and for a better understanding of vaccine strain selection.

Species Identification and Molecular Phylogenetic Position of Korean Damselfishes (Pomacentridae: Chrominae) Based on DNA Bioinformation (DNA 생물정보를 이용한 한국산 자리돔과 어류의 분류 및 분자계통학적 위치)

  • Koh, Jeong Rack;Park, Yung Chul
    • Korean Journal of Ichthyology
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    • v.19 no.4
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    • pp.274-285
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    • 2007
  • The subfamily Chrominae of damselfishes (Teleostei: Pomacentridae) includes the genus Chromis and Dascyllus. They are found throughout the tropical oceans and form a major component of coral reef communities. There are 5 species of the Chrominae currently recognized in Korea. This study was conducted to infer phylogenetic position of two Korean Chromis species and one Dascyllus species within general category of their each genus in worldwide level. This study also includes one species of Japanese Dascyllus. In the phylogenetic analysis, the Japanese D. aruanus grouped with D. aruanus previously reported from French Polynesia. Korean Chromis fumea grouped with Australian C. nitida and the p-distance value between the two species is relatively very low (0.047). Korean C. notatus grouped together with C. flavomaculata (New Caledonia). In the sequence analysis of some Korean and Japanese damselfishes, there was no sequence variation between D. melanurus (Jeju, Korea) and D. melanurus (Indo-Pacific), but the sequences of the two populations were different in only one nucleotide sites from that of D. melanurus in Indonesian Archipelago. The sequences of Dascyllus aruanus (Japan) were different in two nucleotide sites from it in French Polynesia. There were high difference between the sequences of two Korean species, Chromis fumea and Korean C. notatus. The variations among mitochondrial cytochrome b sequences indicate that the gene sequence could be used as DNA barcode for identification of local populations of D. aruaus and D. melanurus as well as species level.