• Animal Systematics, Evolution and Diversity
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• v.30 no.3
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• pp.215-224
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• 2014

A newly recorded ampithoid species, Ampithoe akuolaka Barnard, 1970 from Korean waters is reported with a description and illustrations. This species is distinguished from other congeneric species by the following characteristic features: the apical lobules of the lower lip are separated, but short and tumid; the posterodistal corner of the carpus on gnathopod 1 has a triangular extension in mature males; and the palm of gnathopod 2 is largely bifid in mature males. We examine the fine structures that are not mentioned in the original description using scanning electron microscopy for a better observation, and present a changed key to Korean ampithoid species.

• Animal Systematics, Evolution and Diversity
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• v.30 no.3
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• pp.196-205
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• 2014

This paper describes six new species of sponges in the genus Agelas from Kosrae Island, The Federated States of Micronesia. Most Agelasid sponges are known from only tropical regions. All the new Agelas species; A. fragum n. sp., A. kosrae n. sp., A. purpurea n. sp., A. bakusi n. sp., A. vansoesti n. sp. and A. incrustans n. sp. are compared with other valid species that were studied. Six new species differ from the other species by morphology, growth form, skeletal fibres, habitats and spicule size. Agelas fragum n. sp. is characterized by its tuberculate surface and primary fibres with brush-like spicules. Agelas kosrae n. sp. is differs in skeletal structure and have tertiary fibres. Agelas purpurea n. sp. is characterized by primary, secondary and tertiary fibres are all cored with spicules. Agelas bakusi n. sp. is similar to Agelas clathrodes in shape, but differs in the primary fibres. Agelas vansoesti n. sp. is characterized by having acanthostrongyles. Agelas incrustans n. sp. is distinguished by its encrusting and not cavernous interior.

• Ocean Science Journal
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• v.40 no.3
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• pp.119-125
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• 2005

Qualitative and quantitative composition of meiobenthos was studied in Amursky Bay (Peter the Great Bay, the East Sea). Ten taxonomic groups were found, where nematodes were dominant. Density of meiobenthos in ground sediments of the Bay were not uniform, and the average density was measured at $126.4{\pm}62.3ind.mo^{-2}$. 56 species of nematodes were detected, and dominant species were Sabatieria palmaris, Paracanthonchus macrodon, Sphaerolaimus limosus, S. gracilis and Oncholaimium ramosum. Five taxocenes of nematodes were allocated based on the results of cluster analysis and species domination according to density. Low diversity in species composition of nematodes was noted in the northwestern part of the Bay, which is a zone of desalination, and in the eastern part, which is exposed to household drains.

• Animal Systematics, Evolution and Diversity
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• v.18 no.1
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• pp.135-141
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• 2002

One of bryozoans collected from the subtidal zone of Manjae Island on Aug. 23, 1988 was identified. Parasmittina delicatula (Busk, 1884) turned out to be new to the Korean fauna. Therefore, twelve bryozoan species are reported from Manjae Island so far. Ten species including the present one among them were recorded only from the Pacific Ocean. They consisted of four tropical, three cold temperate and four endemic species to Korea and Japan. It is quite probable that Manjae Island, which is influenced by both warm and cold water currents, seems to be unique and significant area in terms of marine zoogeography.

• Animal Systematics, Evolution and Diversity
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• v.19 no.1
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• pp.125-131
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• 2003

Taxonomic study for the comatulid crinoids collected from the Korea Strait and Jeju Island was conducted. Two species of comatulids, Captoptometra rubroflava belongs to the family Zygometridae and Gephyrometra versicolor belongs to the family Calometridae, were identified and both of them were turned out to be new to the Korean fauna. The family Zygometridae is newly reported in Korea.

• Animal Systematics, Evolution and Diversity
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• v.31 no.2
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• pp.101-106
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• 2015

The Remora brachyptera and R. osteochir, belonging to the family Echeneidae were collected for the first time off Jeju Island, Korea, in July and August 2013 and off Ganggu-myeon, Yeongdeok-gun, Gyeongsangbuk-do in June 2014. Remora brachyptera is characterized by a sucker with 16 pairs of disc laminae and a dorsal fin that originates anterior of the origin of the anal fin. Remora osteochir is characterized by a sucker with 18 pairs of disc laminae and a sucking disc that extends beyond the posterior end of the pectoral fin. New Korean names proposed for the species are "Meo-ri-ppal-pan-i" for R. brachyptera and "Ppyeo-dae-ppal-pan-i" for R. osteochir.

• Animal Systematics, Evolution and Diversity
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• v.34 no.2
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• pp.79-91
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• 2018

Three new genera and species of siphonostomatoid copepods are described as associates of sponges from shallow water of Samar Island in the Philippines: Samarus filipes n. gen., n. sp., Paurocheres dentatus n. gen., n. sp., and Platymyzon umbonatum n. gen., n. sp. A new family Samarusidae is proposed to accommodate Samarus n. gen. which has rudimentary legs 1-5 represented only by filiform setae. Paurocheres n. gen. is characterized by 2-segmented endopod of leg 4 and reduced setation of legs, and Platymyzon n. gen. by missing of mandibular gnathobase.

• Proceedings of the Korean Society of Fisheries Technology Conference
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• 2001.05a
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• pp.471-472
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• 2001

Recently many studies show that genetic characters can be used to provide unambiguous taxonomic discrimination when morphological characters are not practical for routine identification to species level (Bucklin et al., 1996, 1998; Lindeque et al., 1999). The internal transcribed spacer (ITS) regions of the nuclear ribosomal DNA are also one of appropriate markers for species-level studies because it contains sufficient diversity to address intra- and interspecific phylogenetic relationships in invertebrates (Odorico and Miller,1997; Schizas et al., 1999). (omitted)

• Nuclear Engineering and Technology
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• v.34 no.1
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• pp.9-21
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• 2002

Recently each domestic NPP has achieved zero release in liquid effluent activity. However, when looking back past experiences in world nuclear power operation, it is thought that another maximum activity reduction in the released liquid effluent just prior to falling it into environment, if possible, will bring a good effect in PA viewpoint. As the intent of applying the safety concept of diversity to conducting the above activity reduction measure, a scheme passing that effluent through the Deposition Bed just before discharging it into ocean environment was divised. Both Zeolite and ＂the mixed ＂Anthracite-sand＂ were derived as the main activity adsorption medium used in the Deposition Bed, and the schematic drawings of this Bed were presented.

• Animal Systematics, Evolution and Diversity
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• v.33 no.2
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• pp.73-99
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• 2017

Six new species of siphonostomatoid copepods are described from sponges collected in the Philippines and Vietnam. Two new genera of Asterocheridae, Andapontius and Holobinus, are proposed. The new species are Andapontius granulatus n. gen. n. sp., Holobinus angustus n. gen. n. sp. and Dermatomyzon boxshalli n. sp. in the family Asterocheridae and Entomopsyllus brevicaudatus n. sp., Paralepeopsyllus leei n. sp. and P. dambayensis n. sp. in the family Entomolepididae. Doropontius denticornis Thompson and Scott, 1903, is redescribed for the first time since its original record.