• Animal Systematics, Evolution and Diversity
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• v.16 no.1
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• pp.113-122
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• 2000

Diaphanosoma dubium Manuilova, frequently confused with the species group of D. brachyurum Lieven and misidentified as an invalid species of D. leuchtenber-gianum Fischer in the Far East, was redescribed and illustrated. Redescription was based on the materials collected from various freshwater habitats at 76 localities in South Korea during the period from May 1978 to June 1999. Previous records of Diaphanosoma species from Korea were examined. D. dubium is well distinguished from other related species by having large head, longer swimming antennae with a thin seta on the outer distal side of basipod, carapace lacking dorsal spine at the posterior carapace margin, and fewer denticles on the ventro-posterior carapace margin.

• Animal Systematics, Evolution and Diversity
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• v.11 no.1
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• pp.65-77
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• 1995

The present faunistic study, on the marine harpacticoids of Chindo Island, Korea was based on the materials collected from various habitats during the periods from October 23-24 in 1993and July 23-25 in 1994. As a result of examining the specimens, 9 species or subspecies of 6 families were identified , of which 6 species or subspecies were newly recorded from Korea : Tachidius (Tachidius) discipes Giesbrecht, 1881 : T.(Neotachidius) triangularis Shen and Tai, 1963 ; Scutellidium longicauda acheloides Ito, 1976 ; Alteutha depressa (Baird, 1837) ; Amonardia normani (Brady, 1872) ; Onychocamptus bengalensis (Sewell, 1934).

• Korean journal of applied entomology
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• v.34 no.3
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• pp.206-217
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• 1995

A new species, Trichodorus jeonjuensis n. sp., resembles T. cedarus Yokoo, 1964, T. tricaulatus Shishida, 1979, and T. californicus Allen, 1957, from which it differs by male with three ventromedian cervical pores anterior to excretory pore. The spicules are straited all over and first supplement is located on half of spicules and the female has kidney shape vagina. T. tricaulatus Shishida, 1979 is newly reported from Korea. T. cedarus Yokoo, 1964 and paratrichodorus porosus (Alen, 1957) Siddigi, 1974 were found at several localities and some morphological data were compared by localities.

• Animal Systematics, Evolution and Diversity
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• v.8 no.1
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• pp.89-106
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• 1992

The specimens belonging to genus Mina collected from various freshwater habitats at 65 localties in South Korea during the period from July 1983 to July 1991 were examined. As a result of the present study, three species were identified and one of which was newly reported from Korea. We provided a key to four species of the genus Moina occurring in Korea and described and illustrated males and ephipoidal females poorly known in Korea as well as parthenogenetic females of the three species.

• Animal Systematics, Evolution and Diversity
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• v.15 no.1
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• pp.27-49
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• 1999

Thirteen species of Limnephilidae and two of Goeridae are recorded from South Korea. Among them, Brachypsyche schmidi, is described as new to science, and Limnephilus orientalis Martynov and Goera curvispina Martynov are reported for the first time from the Korean peninsula. In addition, Nemotalius mutatus MacLachlan, Asynarchus amurensis Ulmer, and Hydatophylax formosus Schmid are recognized as new to South Korean fauna. Diagnostic information with illustrations fo adults, genitalia of both sexes, and distribution data are provided.

• Animal Systematics, Evolution and Diversity
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• v.12 no.2
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• pp.101-105
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• 1996

A new genus and species belonging to the family Aphodiidae (Coleoptera) Koreoxyomus koreanus gen. et sp. nov., is described from Korea. And a genus known from Japan, Mozartius is discussed because it is almost same taxa with present new genus but its original description is not stable taxonomically.

• Proceedings of the Korea Water Resources Association Conference
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• 2020.06a
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• pp.82-82
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• 2020

수리모델링은 유사나 유사량에 따른 하상의 변화를 구현하고 예측하는데 활용하고 있다. 만약 수리모델링을 하천의 생태적 구조나 기능과 연계하여 해석할 수 있다면, 수리학적 모델의 활용 가능성은 무궁무진해 질 수 있다. 본 연구에서는 동일한 시기의 항공사진 영상과 하천단면 자료를 활용한 수리모델링 모의 결과를 이용하여 서식처 구조를 각각 분류하고, 비교 검토하여 수리모델링 모의 결과에서의 서식처 분류 방안을 제안한다. 대상지는 한국의 금강 지류인 갑천 약 2 km 구간이며, 2012년도의 항공사진과 Nays2D모델을 이용한다. 서식처는 여울, 소, 사주 위 웅덩이, 사주부 정수역(backwater) 등으로 구분한다.

• Korean Journal of Plant Taxonomy
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• v.32 no.4
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• pp.363-382
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• 2002

Morphological characters of three taxa belonging to three genera (Fuirena, Kobresia, and Scleria) in Korean Cyperaceae were reexamined. The anatomical patterns of stems and leaves, and epidermal patterns of achenes and leaves were investigated by a scanning electron microscope (SEM) and a light microscope (LM). Based upon the results, the scientific and Korean names, which have not been clearly established, were reviewed. Morphological characters such as length and width of stem, leaf, bract, scale, achene, and shape of achene, spikelet, style base, scale, perianth, and anatomical characters such as shape of stem and leaf, shape of achene epidermal cell and silica body of leaf, size and frequency of stomatal complex, presence of bulliform cell were useful for an identification of the three taxa.

• Korean Journal of Ecology and Environment
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• v.50 no.1
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• pp.137-147
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• 2017

The identity of toxin producers remains only hypothesis unless there were identified by strain isolation and analytical confirmation of both the cyanotoxin production and the genetic identity of the monoculture. The purposes of this study were to identify a morphologic and phylogenetic classification in Aphanizomenon flos-aquae strains isolated from the Nakdong River and to investigate the potential ability of the strains to produce toxins such as saxitoxin and cylindrospermopsin using target genes. The 16S rRNA and sxtA, sxtI, cyrA, cyrJ genes were analyzed on two strains (DGUC001, DGUC003) isolated from the Nakdong River. Morphological features of the strains were observed a shape of aggregated trichomes in parallel fascicles which can reach up to macroscopic size and a hyaline terminal cell without aerotope. In addition, the 16S rRNA phylogenetic analyses showed that the strains were identified as the same species with high genetic similarity of 98.4% and grouped within a monospecific andsupported cluster I of Aphanizomenon flos-aquae selected from GenBank of the NCBI. The cyrA and cyrJ genes encoding for the cylindrospermopsin-biosynthesis were not detected in the present study. The sxtA gene was in detected both the two strains, whereas the sxtI gene which had been suggested as a suitable molecular marker to detect saxitoxin-producing cyanobacteria was not found both the strains. Thus, the two strains isolated from Nakdong River were identified as the same species of Aphanizomenon flos-aquae Ralfs ex Bornet et Flahault 1888, the two strains were confirmed as potential non-producing strains of the saxitoxin and cylindrospermopsin.

• Animal Systematics, Evolution and Diversity
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• v.10 no.2
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• pp.231-243
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• 1994

Samples of Siberian chipmunks (Tamias sibiricus borberi ) from Korea were analyzed by multivariate, air-drying , and blot-hybridization methods in order to determine the degree of variations of morphological characters, chromosomal karyotype, and mtDNA restriction fragment patterns, respectively, Moreover, morphometric characters of samples of Siberian chipmunks from Manchuria(T.sibiricus orientalis) were also analyzed in order to clarify the taxonomic status of the subspecies barberi. Siberian chipmunks from six localities in Korea were in morphometric characters more or less similar with one another and Siberian chipmunks from Manchuria were not so distinct enough to from a subgroup. Siberian chipmunks from Four localities in Korea were identical in their karyotypes (2n=38) : samples from three localities in Korea were nore or less similar in their mtDNA fragment patterns. Siberian chipmunks from Korea appeared to be a omogeneous population and as noted by Corbet (1978) subspecies barberi is the synonym of subspecies orientalis. The scientific name of Siberian chipmunks from Korea and Manchuria is T. sibiricus orientalis, although systematic studies with the samples from North korea, Manchuria and China will be necessary for their taxonomic reconsideration.