National Marine Biodiversity Institute of Korea

Seocheon, South Korea

National Marine Biodiversity Institute of Korea

Seocheon, South Korea
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Choi H.K.,National Marine Biodiversity Institute of Korea | Jung T.W.,National Marine Biodiversity Institute of Korea | Yoon S.M.,Chosun University
Zootaxa | Year: 2017

A new pectinariid polychaete, Lagis plurihamus sp. nov., is reported from intertidal habitats in the southern and western coasts of Korea. Lagis plurihamus sp. nov. is clearly distinguished from its congeners by a combination of the following morphological features: the cephalic veil bears usually 10-15 cirri; two pairs of thoracic branchiae are present on the segments 3 and 4; the scaphe is robust with 9-14 delicate scaphal hooks; the scaphal anal flap has a dorsal anal cirrus and fringed margin. Previously described species of Lagis from East Asia, L. bocki (Hessle, 1917) and L. crenulatus Sun & Qiu 2012 together with the newly described species L. plurihamus sp. nov., all have both short, recurved notochaetae with bordered serrations and long, straight notochaetae with fine serrations. We provide detailed description and illustrations with SEM photographs for the new species. A revised key to all Lagis species is also provided with a comparison of the morphological characteristics of them. © 2017 Magnolia Press.


Hyeon J.W.,Chung - Ang University | Jeong S.E.,Chung - Ang University | Baek K.,National Marine Biodiversity Institute of Korea | Jeon C.O.,Chung - Ang University
International Journal of Systematic and Evolutionary Microbiology | Year: 2017

A Gram-staining-negative, strictly aerobic bacterial strain, designated MA7-20T, was isolated from a marine alga, Porphyridium marinum, in Korea. Cells showing oxidase-positive and catalase-positive activities were motile rods with bipolar flagella. Growth of strain MA7-20T was observed at 15–45 °C (optimum, 30–37 °C), at pH 6.0–10.5 (optimum, pH 7.0–8.0) and in the presence of 0–7% (w/v) NaCl (optimum, 2–3%). Strain MA7-20T contained summed feature 8 (comprising C18 :1ω7c/ C18 :1ω6c), 11-methyl C18 :1ω7c and C18 :0 as the major fatty acids and ubiquinone-10 as the sole isoprenoid quinone. The major polar lipids were phosphatidylcholine, phosphatidylglycerol, diphosphatidylglycerol, phosphatidylethanolamine and phosphatidyl-N-methylethanolamine. The G+C content of the genomic DNA was 61.5 mol%. Strain MA7-20T was most closely related to Hoeflea suaedae YC6898T, Oricola cellulosilytica CC-AMH-0T and Nitratireductor basaltis J3T with 96.0, 95.8 and 95.8% 16S rRNA gene sequence similarities, respectively, but the strain formed a distinct phylogenetic lineage from them within the family Phyllobacteriaceae with a low bootstrap value. H. suaedae also formed a clearly distinct phylogenetic lineage from other members of the genus Hoeflea and closely related genera. On the basis of phenotypic, chemotaxonomic and molecular properties, strain MA7-20T represents a novel species of a new genus of the family Phyllobacteriaceae, for which the name Roseitalea porphyridii gen. nov., sp. nov. is proposed. The type strain is MA7-20T (=KACC 18807T=JCM 31538T). In addition, H. suaedae is also reclassified as Pseudohoeflea suaedae gen. nov., comb. nov. (type strain YC6898T=KACC 14911T =NBRC 107700T). © 2017 IUMS.


Back J.,National Marine Biodiversity Institute of Korea | Lee W.,Hanyang University
ZooKeys | Year: 2017

Two new species of Leptopsyllus are described from the subtidal zone of Korea. Both species were assigned to the subgenus Leptopsyllus (Leptopsyllus) T. Scott, 1894, based on following three characters: two-seg-mented rami of P1, absence of endopod on P2 and P3, and presence of one-segmented endopod of P4. L. (L.) pundius sp. n. is most closely related to L. (L.) punctatus Mielke, 1894, however clearly distinguishable from it based on mandibular exopod with two setae, shape of P6, and caudal seta III ornamented with spinules in the new species. L. (L.) koreanus sp. n. is clearly distinguishable from its congeners by the second segment of P1 endopod armed with one element, male baseoendopod of P5 with one seta, and one segmented endopod of mandibular palp. The world distribution and updated key to the species of the genus Leptopsyllus are provided. © Jinwook Back, Wonchoel Lee.


Lee S.,National Institute of Biological Resources | Kim J.H.,Korea Research Institute of Bioscience and Biotechnology | Song H.Y.,National Marine Biodiversity Institute of Korea
Mitochondrial DNA Part B: Resources | Year: 2016

The Korean torrent catfish (Liobagrus andersoni), an endemic species in Korea, is a member of the family Amblycipitidae. Herein, we report the first sequencing and assembly of the complete mitochondrial genome of L. andersoni. The complete mitochondrial genome is 16,514 bp long, consisting of 13 protein-coding genes, 22 tRNA genes, two rRNA genes, and a control region. It has the typical vertebrate mitochondrial gene arrangement. Phylogenetic analysis using mitochondrial genomes of 21 species showed that L. andersoni was clustered with L. marginatoides and L. nigricauda. This mitochondrial genome provides potentially important resources for addressing taxonomic issues and studying molecular evolution. © 2016 The Author(s).


Lee S.,National Institute of Biological Resources | Song H.Y.,National Marine Biodiversity Institute of Korea
Mitochondrial DNA Part B: Resources | Year: 2016

The Korean oily shinner (Sarcocheilichthys nigripinnis morii) is a subspecies belonging to the subfamily Gobioninae in the family Cyprinidae and is endemic to Korea. Herein, we report the first sequencing and assembly of the complete mitochondrial genome of S. nigripinnis morii. The complete mitochondrial genome is 16,679 bp long, consisting of 13 protein-coding genes, 22 tRNA genes, 2 rRNA genes, and a control region. It has the typical vertebrate mitochondrial gene arrangement. Phylogenetic analysis using mitogenomes of 16 species showed that S. nigripinnis morii was clustered with S. nigripinnis and S. variegatus microoculus and grouped with the other Cyprinidae species. © 2016 The Author(s).


Wi J.H.,Chonnam National University | Jeong M.-K.,Chonnam National University | Jeong H.G.,National Marine Biodiversity Institute of Korea
Marine Biodiversity | Year: 2016

Two new species of Zeuxo Templeton 1840 are described from the western and southern coast of Korea (North West Pacific). Zeuxo gracilis n. sp. and Z. spina n. sp. belong to the “Z. normani species complex”. Zeuxo gracilis is distinguished from species within this complex by the following morphological combination in females: the spine row of the left mandible bears a bifid spiniform seta; pleonites 4 and 5 bear one and two lateral setae, respectively; the cheliped merus bears two ventral and two inner setae; and pereopods 2–6 bear a distal simple seta on merus. Zeuxo spina shows unique features characterized by a serrated ventral seta on each propodus of pereopods 2 and 3 and the cheliped merus bearing two ventral and one inner setae. Additional character states are proposed for defining new and/or sibling species within the Z. normani species complex. In order to confirm the presence/absence of morphological variations of Zeuxo, detailed morphological features between same- and different-sized females of Z. gracilis are compared and discussed. © 2016 Senckenberg Gesellschaft für Naturforschung and Springer-Verlag Berlin Heidelberg


Yi C.H.,National Marine Biodiversity Institute of Korea | Kim J.H.,Sungkyunkwan University
Ocean Science Journal | Year: 2016

In 2007–2008, a population outbreak of the solitary ascidian Herdmania momus was observed along the coasts of Jeju Island and the ascidians became the top dominant species in macrobenthic communities. We conducted field experiments on population dynamics and demographic parameters including seasonal density fluctuation, vertical distribution, recruitment patterns, mortality, and growth rate. Recruitment continued year-round except in April following the lowest water temperature season in February. Population density was highest in August-October, concomitantly with the peak in recruitment, related to the highest water temperature. The lowest density was observed in February-April when the water temperature was lowest. In April all individuals disappeared from all permanent plots, resulting in a maximum life span of 10–12 months. Individuals of newly recruited H. momus grew to have an adult size of 4–6 cm in only 3–4 months. Higher densities were observed in the shallower areas (5 m) compared to the deeper zones. More recruitment occurred on vertical slopes than horizontal substrates, but substrate pre-occupancy caused no difference in recruitment. This is the first report on H. momus population-level investigation in Korea, which provides valuable baseline information on the current status of population demography and their potential community-level influence on Jeju coasts. © 2016, Korea Ocean Research & Development Institute (KORDI) and the Korean Society of Oceanography (KSO) and Springer Science+Business Media Dordrecht.


Jung T.W.,National Marine Biodiversity Institute of Korea | Yoon S.M.,Chosun University
Journal of Natural History | Year: 2015

The family Nuuanuidae Lowry and Myers, 2013 is first reported from Korean waters by the discovery of Nuuanu paracyclodactyla sp. nov. and Parvipalpus gen. nov., erected with the description of Parvipalpus holocaudatus sp. nov., along with their detailed descriptions and illustrations. The monotypic genus, Parvipalpus gen. nov., is characterized by the bi-articulate mandibular palp, the uni-articulate outer ramus of uropod 3, and no cleft telson. The new species, Nuuanu paracyclodactyla sp. nov., is very similar to Gammarella cyclodactyla (Hirayama, 1978) in the peculiar shape of propodus and dactylus on gnathopod 2 in mature males, but the former is distinguished readily by the absence of dorsal keels on the pleons and urosomite 1. New keys to genera of this family and to species of the genus Nuuanu are provided. © 2015 The Author(s). Published by Taylor & Francis.


Baek K.,Chung - Ang University | Baek K.,National Marine Biodiversity Institute of Korea | Jeon C.O.,Chung - Ang University
International Journal of Systematic and Evolutionary Microbiology | Year: 2015

A Gram-stain-negative, strictly aerobic, non-pigmented, motile bacterium with a single polar flagellum, designated H29T, was isolated from coastal sediment of Jeju Island, South Korea. Cells were non-spore-forming rods showing catalase- and oxidase-positive reactions. Growth of strain H29T was observed at 10–40 8C (optimum, 20–25 8C) and pH 6.0–9.0 (optimum, pH 7.0–8.0), and in the presence of 1–4% (w/v) NaCl (optimum, 2–3 %). Strain H29T contained C16:0, iso-C15:0 3-OH and summed feature 3 (comprising C16:1ω7c/C16:1ω6c) as the major fatty acids and ubiquinone-8 (Q-8) as the sole isoprenoid quinone. Phosphatidylethanolamine and phosphatidylglycerol were identified as the major polar lipids. The G+C content of the genomic DNA was 46.5 mol%. Phylogenetic analyses based on 16S rRNA gene sequences showed that strain H29T formed a phyletic lineage with Rheinheimera hassiensis E48T within the genus Rheinheimera of the family Chromatiaceae. Strain H29T was most closely related to Rheinheimera pacifica KMM 1406T, Rheinheimera muenzenbergensis E49T, Rheinheimera hassiensis E48T and Rheinheimera baltica OSBAC1T with 97.8 %, 97.6 %, 97.4% and 97.2% 16S rRNA gene sequence similarities, respectively. However, DNA–DNA hybridization values of strain H29T with type strains of these species were lower than 70 %. On the basis of the phenotypic, chemotaxonomic and molecular properties, strain H29T represents a novel species of the genus Rheinheimera, for which the name Rheinheimera aestuarii sp. nov. is proposed. The type strain is H29T (5KACC 18251T5JCM 30404T). © 2015 IUMS.


Kwun H.J.,National Marine Biodiversity Institute of Korea | Park J.,National Marine Biodiversity Institute of Korea | Kim H.S.,National Marine Biodiversity Institute of Korea
Marine Biodiversity | Year: 2016

We report the first record of partial albinism in Dictyosoma rubrimaculatum, collected from Jeju Island, Korea, in July 2015. This specimen has yellowish white coloration of the body, head, and all fins, except for dark stripes on the snout and anterior region of the opercle, dark blotches on the anterior tip of the lower jaw, black eyes, and small melanophores on the posterior region of the body. © 2016 Senckenberg Gesellschaft für Naturforschung and Springer-Verlag Berlin Heidelberg

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