A5101895901- Marine Biology and Ecology Research
- Isotope Analysis in Ecology
- Marine Bivalve and Aquaculture Studies
- Marine and coastal plant biology
- Marine and Coastal Research
- Diamond and Carbon-based Materials Research
- Parasite Biology and Host Interactions
- Geology and Paleoclimatology Research
- Marine and coastal ecosystems
- Methane Hydrates and Related Phenomena
- Ocean Acidification Effects and Responses
- Cephalopods and Marine Biology
- Microbial Community Ecology and Physiology
- Crustacean biology and ecology
- Marine Biology and Environmental Chemistry
- Aquatic Invertebrate Ecology and Behavior
- Nematode management and characterization studies
- Coral and Marine Ecosystems Studies
- Ion-surface interactions and analysis
- Marine and fisheries research
- Carbon Nanotubes in Composites
- Plasma Diagnostics and Applications
- Injection Molding Process and Properties
- Nanofabrication and Lithography Techniques
- Calcium Carbonate Crystallization and Inhibition
Korea Institute of Ocean Science and Technology
2015-2024
Hanyang University
2024
Korea Maritime and Ocean University
2021-2022
Chung-Ang University
2010-2021
Los Alamos National Laboratory
2018-2020
Kumamoto University
2018
Korea Development Institute
2001
The University of Tokyo
1996
Eight species of copepods belonging to the family Dirivultidae (Siphonostomatoida) are described from deep-water hydrothermal vent fields on Central Indian Ridge in Ocean. Aphotopontius limatulus Humes, 1987, previously known only East Pacific, is included. The other seven new, as follows: kiost n. sp., A. muricatus Benthoxynus constrictus Stygiopontius spinifer S. horridus geminus and quadripaxillifer sp. copepodid I stage also described. This first record living
A large collection of kinorhynch specimens from coastal and subtidal localities around the Korean Peninsula in East China Sea was examined, material included several species undescribed or poorly known Echinoderes Claparède, 1863. The present paper is part a series dealing with echinoderid this material, inludes descriptions four new Echinoderes, E. aspinosus sp. nov., cernunnos microaperturus nov. obtuspinosus redescriprion tchefouensis Lou, 1934.
Abstract Four new hydrothermal vent fields were discovered on the slow spreading Central Indian Ridge (8–12°S; Segments 1–3), all located off‐axis abyssal hill structures or Ocean Core Complexes (OCCs). Each site was characterized using seafloor observation (towed camera system), plume chemistry (Fe, Mn, and CH 4 ; Conductivity, Temperature, Depth sensor [CTD]/Miniature Autonomous Plume Recorder [MAPR]), rock sampling (TVgrab/dredges). Different styles of venting each segment reflect...
The objective of this study was to prepare an angiotensin I-converting enzyme (ACE)-inhibitory peptide from the hydrothermal vent mussel, Gigantidas vrijenhoeki. G. vrijenhoeki protein hydrolyzed by various hydrolytic enzymes. peptic hydrolysate exhibited highest ACE-inhibitory activity and fractionated into four molecular weight ranges ultrafiltration. <1 kDa fraction ACE inhibitory found have 11 sequences. Among analyzed peptides, KLLWNGKM stronger IC50 value 0.007 μM. To investigate a...
A new kinorhynch species, Condyloderes megastigma sp. nov., is described from the Korea Strait. The species characterized by presence of 16 placids with either eight, four, or two knobby projections, middorsal and lateroventral acicular spines on segments 1 to 9, cuspidate segment 2 in females only, but otherwise 4 5, 8 9 both sexes. Unique for furthermore paired ventromedial appendages 7 8, giant sensory spots a terminal consisting one tergal sternal plate. mouth cone introvert armature are...
Four new species of Pycnophyes are described from Korean waters and the East China Sea. pardosi n. sp. is distinguished other congeners by presence a single paradorsal seta on segments 2-8 pair segment 9, combined with longitudinal cuticular thickenings dorsal ventral sides 10. chalgap easily shape its midsternal plate rounded posterior margin, extending beyond overlapping half following segment. cristatus recognized lack ventromedial setae 3-6 pointed middorsal processes that turn...
The recently discovered Onnuri hydrothermal vent field (OVF) is a typical off-axis ultramafic-hosted system, located on the summit of dome-like ocean core complex (OCC) at distance ∼12 km from ridge axis along middle region Central Indian Ridge (CIR). plume chemistry with high methane anomaly was consistent precursor activity; however, fundamental characteristic OVF such as circulation process and source heat, remains poorly understood. Here, we focus geochemical features surface sediments...
Abstract A new species of the rarely recorded kinorhynch genus Sphenoderes was collected in Korea Strait and East China Sea. The species, poseidon sp. nov., is distinguished by presence lateroventral cuspidate spines on segments 5 9 only, opposed to 5, 8 as found S. indicus. furthermore characterized having special head aperture that diagnostic for Sphenoderes, but yet possessing a segment 1 composed single, closed cuticular ring, rather than dorsal, ventral two lateral plates description...
A new kinorhynch species, Dracoderes nidhug nov. sp., is described from the East Sea, at 160 m depth, off Uljin, Korea. The species fourth that can be assigned to genus, and recognized by presence of dorsal spines on segments 3 9 (alternatingly displaced more paradorsal positions 8), subdorsal tubules segment 2, lateroventral 5 10, lateral accessory 8. shows two longitudinal, intracuticular markings ventral side 1, which could interpret as rudimentary plate joints, corresponding...
Animals living in extreme environments, such as hydrothermal vents, would be expected to have evolved protective shells or exoskeletons maintain homeostasis. The outer part of the exoskeleton vent crabs (Austinograea sp.) Indian Ocean was one hardest (approximately 7 GPa) biological materials ever reported. To explore exoskeletal characteristics which enable them adapt severe a comparative analysis conducted with Asian paddle crab (Charybdis japonica) coastal areas. Nanoindentation,...
Monstrilloid copepods of the genus Monstrillopsis Sars, 1921 are recorded from Korea, as well northwestern Pacific, for first time. Specimens were obtained using a light trap set overnight at piers or seawalls in small harbors. Males two new species found and described herein with remarks on their affinities detailed drawings SEM photographs morphological features. longilobata sp. nov. is allied to M. chathamensis Suárez-Morales & Morales-Ramírez, 2009 sarsi Isaac, 1974 having character...
Many plastics cause pollution in the marine environment, with microplastics (0.1 µm–5 mm) representing a key research focus. The number of sediments may increase rapidly, affecting organisms inhabiting sediments. aim this study was to determine how affect nematodes intertidal sand. We assessed: (1) intake microplastic particles (10 µm, 5 1 or 0.5 µm) by Enoplolaimus spp. over 48 h; (2) depending on feeding type (selective deposit feeders, non-selective epistrate predators/omnivores) and (3)...
Stable carbon and nitrogen isotope ratios of benthic invertebrates their potential food sources, such as suspended particulate organic matter (POM), microalgae, attached algae seagrass, were identified in Dong-dae Bay during the winter. The stable demonstrate that filter feeders, oysters (−19.5 ± 1.0‰), use microalgae (−21.2 0.2‰) a major food, polychaetes Glycera spp. (−14.0 0.6 ‰) preferentially meiofauna, nematodes 0.4‰) copepods (−13.3 1.0‰). These meiofauna may feed on mixed resources...
The rapid increase in carbon dioxide levels seawater is causing ocean acidification and expected to have significant effects on marine life. To explore the ability of harpacticoid copepod Tigriopus japonicus adapt an increased concentration dissolved (CO2) seawater, we compared survival rates adult nauplius stages at 400, 1000, 1550 ppm pCO2 over a 14-day period. rate T. dramatically decreased time with concentration. At ppm, showed decrease more than 20% end experimental period that 400...