• Animal cells and systems
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• v.14 no.4
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• pp.351-360
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• 2010

A new species of the Cletopsyllidae belonging to the genus Isocletopsyllus Huys and Lee, 1999 is described from the materials collected from subtidal sandy bottoms at Jeju Island and Ulleung Island, Korea. So far, only two species of the genus Isocletopsyllus, viz. I. tertius (Por, 1964) from Israel and I. quartus (Soyer, 1966) from Banyuls-sur-Mer (France) are recorded, both from the Mediterranean Ocean. The new species can be clearly distinguished from its congeners by the combination of the following characters: (1) female antennule with a large process on the outer margin of first segment, (2) caudal rami with a bulbous proximal inner expansion, and shorter than those of other species (about four times long as wide in the new species), (3) second segment of P1 exopod with a short rod-like inner seta, (4) sexual dimorphism presented in the second endopodal segment of male P2, not in exopod of P4, and (6) female P5 with a very long exopod with very short second outer seta. A table comparing the modifications of swimming legs in the family Cletopsyllidae Huys and Lee, 1999 is presented. This is the first record of this family from Korea.

• Journal of Aquaculture
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• v.20 no.3
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• pp.168-172
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• 2007

Two zooplankton species Brachionus rotundiformis (rotifera) and Tigriopus japonicus (copepoda; harpacticoida) were commonly used as live food organisms in the marine larval rearing centers. The combination culture method of two live food organisms (B. rotundiformis and T. japonicus) was well known as very valuable for stable and mass cultures. In this study, we investigated the effects of photoperiod exchanges on the growth and interspecific relationship in the combination culture of two species. The results showed that, photoperiod condition can change copepod (and rotifer) density under the two species combination cultures. There is 200% higher maximum rotifer density on the 24L:0D photoperiod culture condition compare to 12L:12D condition. However, maximum density of copepod is observed highest on the 0L:24D photoperiod culture condition. In addition, it's differ in the culture densities of nauplii, copepodites and female carrying eggs on the each three photoperiod types.

• Animal Systematics, Evolution and Diversity
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• v.23 no.1
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• pp.57-68
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• 2007

A taxonomic study on the genera Phyllognathopus and Harpacticella has been accomplished as one of the serial researches on the freshwater harpacticoids in South Korea. As a result, four species belonging to the genera are clarified, three of which are new to Korean fauna: P. viguieri (Maupas), P. paludosus Mrazek, and H. paradoxa (Brehm).

• Ocean Science Journal
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• v.42 no.4
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• pp.255-267
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• 2007

Three brackish-water harpacticoid species belonging to the family Cletodidae are reported from the salt marshes in South Korea: Limnocletodes behningi Borutzky, 1926, L. angustodes Shen and Tai, 1963 and Kollerua longum (Shen and Tai 1979). Two genera, Limnocletodes and Kollerua, and the three species are newly added to Korean fauna. This paper deals with the redescription and systematic accounts of them, with detailed illustrations.

• Fisheries and Aquatic Sciences
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• v.2 no.2
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• pp.189-198
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• 1999

Three harpacticoid copepods, Dactylopodamphiascopsis latifolius (Sars, 1909), Diosaccus ezoensis Ito, 1974 and Ambunguipes rufocincta (Brady, 1880) are recorded as new to the Korean fauna with illustrations, on the basis of the specimens collected mainly from the marine macro algae during the period from June 1990 to September 1997.

• Animal Systematics, Evolution and Diversity
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• v.7 no.1
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• pp.73-80
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• 1991

A new species belonging to genus Harpacticella of Harpacticidae , collected from the Tamjin River and the Smjin River draining into the Korean Straits, is described and illustrated under the name of Harpacticella itoi. The present species is different from the other 5 congeners by the armatures of exopodites of female and male leg 5.

• Proceedings of the Korean Society of Fisheries Technology Conference
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• 2001.05a
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• pp.479-480
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• 2001

Harpacticoid copepods are one of the most important components in the benthic meiofaunal community. In spite of their numerical significance the study of harpacticoids in Korea, as distinct from meiofauna in general (Kim et al., 1998, 2000a, b), has been limited. During the course of investigation on ecological significance of harpacticoids in the intertidal sandy shore, a new species of the genus Rhizothrix was determined and described here. (omitted)

• Animal Systematics, Evolution and Diversity
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• v.22 no.2
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• pp.195-208
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• 2006

Five freshwater harpacticoid species of the genus Bryocamptus are identified as one of the serial taxonomic studies on the family Canthocamptidae in South Korea: B, zschokkei caucasicus (Borutzky, 1930), B. nivalis (Willey, 1925), B, pacificus Ishida, 1992, B. vejdovskyi (Mrazek, 1893) and B. umiatensis Wilson, 1958. Bryocamptus pacificus, B. vedjovskyi and B. umiatensis are newly known from Korea. A key to the species of the genus Bryocamptus in Korea is provided.

• Animal Systematics, Evolution and Diversity
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• v.17 no.1
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• pp.1-11
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• 2001

Conthocamptus mirabilis Sterba is redescribed on the basis of the material newly collected from the type locality near Bekijing, China, with an evaluation of the variability of several characters. C. mirabilis possesses the plesiomorphic characters of the round and narrow hyaline membrane and the unmodified outer terminal furcal setae, while it also bears the apomorphic ones of the male-type caudal rami in females and the modified outer terminal setae of male leg 4 exopod. the peculiar dorsal keel ornamented with spinule array on the female's caudal rami is the most significant feature differentiating this species from its relatives of the mirabilis group, which turned out to be a species group of closely related and largely allopatric or parapatric species. Affinities with the allies of the species group are discussed, and the morphological discrepancies differentiating the Japanese population are enumerated.

• The Sea:JOURNAL OF THE KOREAN SOCIETY OF OCEANOGRAPHY
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• v.2 no.1
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• pp.42-47
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• 1997

This study was carried out to investigate the faunal composition and distribution pattern of meiobenthic community in the deep sea sediments of northeastern Pacific Ocean. Faunal samples were collected at 10 stations using a multiple corer and a spade type box corer during May 1996. A total of 18 meiofaunal groups were found, and Sarcomastigophora was the most dominant group which accounted for 35.8% of total meiofaunal abundance. Nematoda (30.8%), Nauplius larvae of Crustacea (11.9%), Ciliophora (6.8%) and Harpacticoida (3.0%) which were also important components of the meiofaunal community. All of these five faunal groups comprised more than 90% of total meiofauna. The highest density of 195 ind./10 $cm^2$ was found at St. 4 (4960 m water depth), but the lowest one, 85 ind./10 $cm^2$ at St. 1 (4969 m water depth). The overall mean density of meiofauna was estimated as $1.34{\times}10^5\;ind./m^2$. The abundance of meiofauna showed a slow decreasing trend along the water depth. The highest density was observed in the upper 1 cm and density decreased drastically with increasing depth from the surface.