• Journal of Species Research
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• 제11권1호
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• pp.61-66
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• 2022

Three localities of coastal sand-dunes along the western coastline of Korea: Sindu-ri, Sinhap-ri, and Jaeun-do, were surveyed for the lepidopteran fauna. This survey resulted in the records of five species new to Korea: a species of Cosmopterigidae, Cosmopterix flavidella Kuroko, 2011, based on eight specimens from Sinhap-ri and Jaeun-do; a species of Tortricidae, Noduliferola abstrusa Kuznetzov, 1973, based on five specimens from Sinhap-ri and Jaeun-do; a species of Pyralidae, Maliarpha borealis Sasaki, 2012, based on four specimens from Sindu-ri; and two species of Erebidae, Ectoblemma rosella Sugi, 1982 and Metachrostis miasma (Hampson, 1891), based on one specimen for each from Jaeun-do. Three genera, Noduliferola Kuznetzov, 1973, Maliarpha Ragonot, 1888 and Ectoblemma Sugi, 1982, are introduced for the first time to the Korean fauna. Two species, Noduliferola abstrusa and Maliarpha borealis, are suggested as the indicator species for coastal sand-dunes. The superficial and genital features of the five species found from this study are described and illustrated. A photograph of the female genitalia of Ectoblemma rosella is provided for the first time.

• Animal Systematics, Evolution and Diversity
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• 제40권1호
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• pp.35-41
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• 2024

Two species belonging to the genus Gregarinidra Barroso, 1949 (Bryozoa: Gymnolaemata: Flustridae) were first found in this study from Korean waters. Gregarinidra furcula n. sp. is new to science, and G. incrustans (Silén, 1941) is newly added to the Korean fauna. Species belonging to this genus are primarily distinguished by two characteristics: interzooidal avicularia and marginal spines. The pitchforked spines clearly distinguish G. furcula n. sp. from the other Gregarinidra species, and G. incrustans shows the difference by having blunt spines and short-triangular avicularia. Gregarinidra incrustans was known to be distributed only in Japan until this species was reported from the South Sea, Korea, in the present study. This study provides descriptions of two species with detailed illustrations by scanning electron microscopy, distributional data, and a taxonomic key to the Korean Gregarinidra species. With the addition of two species reported herein, four Korean Gregarinidra are recorded: G. corbula Seo, 1996, G. furcula new species, G. incrustans(Silén, 1941), and G. serrata (MacGillivray, 1869). Finally, Gregarinidra totals 10 species worldwide.

• 한국환경생태학회지
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• 제28권6호
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• pp.664-696
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• 2014

본 연구는 대청도와 소청도의 곤충다양성에 관한 연구를 위하여 실시하였으며 2011년 6월부터 10월까지 6회에 걸쳐 주간과 야간조사를 병행하여 실시하였다. 대청도에서 조사된 곤충은 총 9목 75과 286종이며 소청도에서 조사된 곤충은 총 8목 42과 106종으로 대청도와 소청도에서는 9목 78과 336종의 곤충이 서식하는 것으로 조사되었다. 기존 참고문헌을 포함하여 대청도와 소청도에 서식하는 전체 곤충을 정리하면 총 10목 103과 744종으로 나비목이 29과 439종으로 59%의 비율을 차지하며 우점하였고, 딱정벌레목이 27과 124종으로 16%의 비율로 조사되었다. 이 중에서 환경부 지정 멸종위기야생동물은 2종으로 애기뿔소똥구리와 왕은점표범나비가 확인되었다. 그 외 IUCN 적색목록에 포함된 종이 2종(봄처녀나비, 큰주홍부전나비), 국외반출승인대상종 25종, 고유종 5종, 한국적색목록 6종, 특정종 77종, 기후민감종이 2종으로 확인되었다. 본 조사에 새롭게 조사되어 신규등록된 곤충은 대청도에서 58과 147종이며 소청도에서 24과 43종으로 확인되었다.

• 한국패류학회지
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• 제16권1_2호
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• pp.55-60
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• 2000

동양에서 쓰이고 있는 약용패류는 육상 복족류 2과 5종, 담수 복족류 1과 2종, 해산 복족류 5과 23종, 담수 이매패류 3과 9종, 해산 이매패류 5과 24종 등 총 16과 63종이 약용패류로 사용되고 있었다. 이 중 한국산 약용패류는 담수 복족류 1종, 담수 이매패류 4종. 해산 복족류 7종, 해산 이매패류 10종 등 총 22종이 포함되었다. 앞으로 한국산 약용 연체동물 22종은 종 다양성 유지 및 그 보존적 차원에서 특별히 관리, 보존되어야 할 것으로 사료된다.

• 한국조경학회지
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• 제26권2호
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• pp.251-258
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• 1998

The purposes of this study was to investigate accuracy and indigenity of landscape plant species in planting design and construction at housing complex and offer basic data for improving precision of planting construction. The scientific name of landscape plant species was described in planting drawings at only two sites among twelve survey sites. According to analysis on indigenity of plant species in planting drawings, it was found that the component ratio of foreign species was the highest and the component ratio of native species at public housing complex was the lowest. The component ratio of landscape plant species in planting construction was severely differed to that of planting drawings. Also the component ratio of cultivar was higher than that of planting drawings due to planting of sevveral cultivars for one species in planting drawings. In the result of accuracy analysis on landscape plant species in planting construction, it was found that mean ratio of inacccurate species was 33.2% at public housing complex, 29.6% at local company housing complex and 26.4% at nationwide company housing complex. It was found that several cultivars were planted for one species in planting drawings. The representative species which were planted by several cultivars were Camellia japonica, Rododendron spp., Prunus spp. and Magnolia spp. and so on. In order to promote the precision and speciality of planting design and construction, scientific and cultivar name of plants should be described in planting drawings.

• ALGAE
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• 제31권1호
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• pp.41-48
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• 2016

The clonal seaweed Chondrus crispus (Rhodophyta, Gigartinales) forms extensive stands at low intertidal elevations on wave-sheltered rocky shores of the North Atlantic. This study investigates if this bushy alga acts as a foundation species in such habitats. The abundance (percent cover) of C. crispus, all other algae, and invertebrates was measured in 390 quadrats spanning 350 km of coast in Nova Scotia, Canada. In these low-intertidal habitats, fucoid algae are the largest organisms and can form extensive canopies, but their cover was unrelated to benthic species richness and to C. crispus cover. Species richness, however, increased with C. crispus cover from low to intermediate cover values, showing little change towards full C. crispus cover. Species composition (a combined measure of species identity and their relative abundance) differed between quadrats with low (0-1%) and high (60-100%) cover of C. crispus. High C. crispus cover was associated to more invertebrate species but fewer algal species than low C. crispus cover. However, the average abundance of algal and invertebrate species occurring in both cover groups was often higher under high C. crispus cover, contributing to a higher average richness at the quadrat scale. Overall, only 16% of the observed variation in species richness was explained by C. crispus cover. Therefore, this study suggests that C. crispus acts as a foundation species but with a moderate influence.

• ALGAE
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• 제22권3호
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• pp.221-228
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• 2007

Frequent occurrences of green tides caused by Ulva species (Ulvales, Ulvophyceae) associated with eutrophication along enclosed coasts are currently causing environmental problems in coastal ecosystems. In addition, increasing intercontinental introductions of coastal marine organisms, including Ulva, are also a serious issue. However, due to the considerable morphological plasticity of this genus, the taxonomy of Ulva species based on morphological studies is problematic. Therefore, in order to elucidate the species diversity and seasonal changes of the dominant Ulva species in Mikawa Bay, central Honshu, Japan, we made seasonal collections of Ulva species at seven localities, and identified the dominant species using the ITS2 rDNA region sequences. We identified the following nine taxa as common Ulva species in the area: 1) Ulva pertusa Kjellman; 2) U. ohnoi Hiraoka et Shimada; 3) U. linza L.; 4) U. californica Wille; 5) U. flexuosa Wulfen; 6) U. fasciata Delile; 7) U. compressa L.; 8) U. armoricana Dion et al.; 9) U. scandinavica Bliding. Among the species, U. pertusa was most common and dominant from spring to summer, and U. ohnoi from autumn to winter. Ulva californica and U. scandinavica have not been reported before from Japan.

• 한국환경과학회지
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• 제7권5호
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• pp.607-613
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• 1998

This study was carried out to investigate flora of phytoplankton in Milyang River from July 1996 to April 1997. Phytoplankton were identified 206 kinds and composed of 2 var.-for., 5 forms, 35 varieties, 164 species, 70 genera, 31 families, 14 orders, 6 classes and 5 phyla. According to the seasonal variation, 131 species were founded in summer, 109 species in spring, 108 species in autumn, and 100 species in winter, respectively. Seasonal and stationary variation of standing crops were between 10 and 5.600 cells/mι. At station 7, Cyclotella meneghiniana was bloomed 5,000 cells/mι(89.7%) in winter, and Stephanodiscus hantzschii was bloomed 3,400 cells/mι(74.3%) in spring. The number of species and standing crops were increased with proceeding from upper stream to lower stream. Important species of phytoplankton were 24 species, that are 4 species of Cyanophyta (Aphanocapsa elachista, Merismopedium glaucum, Lyngbya limnetica, Oscillatoria tenuis), 12 species of Crysophyta (Melosira varians, Stephanodiscus hantzschii, Cyclotalla meneghiniana, Fragilaria construens var. venter, Navicula cryptocephala, Cymbella ventricosa, Gomphonema olivaceum), and 8 species of Chlorophyta (Chlamydomonas reinhardi, Eudorina elegans, Pandorina morum, Oocystis borgei, Scenedesmus quadricauda, Microspora crassior). According to the similarity index among the stations, it was generally defind as two water areas such as upper stream(station 1~3) and lower stream(station 4~7).

• Asian-Australasian Journal of Animal Sciences
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• 제20권12호
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• pp.1887-1894
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• 2007

In this paper, a rapid and reliable gene-targeted species-specific polymerase chain reaction (PCR) technique based on a two-step process was established to identify bifidobacteria in dairy products. The first step was the PCR assay for genus Bifidobacterium with genus specific primers followed by the second step, which identified the species level with species-specific primer mixtures. Ten specific primer pairs, designed from nucleotide sequences of the 16-23S rRNA region, were developed for the Bifidobacterium species including B. angulatum, B. animalis, B. bifidum, B. breve, B. catenulatum, B. infantis, B. longum, B. minimum, B. subtile, and B. thermophilum. This technique was applied to the identification of Bifidobacterium species isolated from 6 probiotic products, and four different Bifidobacterium spp. (B. bifidum, B. longum, B. infantis, and B. breve) were identified. The findings indicated that the 16S-23S rDNA gene-targeted species-specific PCR technique is a simple and reliable method for identification of bifidobacteria in probiotic products. PCR combined with Denaturing Gradient Gel Electrophoresis (DGGE) for identification of the bifidobacteria was also evaluated and compared with the gene-targeted species-specific technique. Results indicated that for fermented milk products consistency was found for both species-specific PCR and PCR-DGGE in detecting species. However, in some lyophilized products, the bands corresponding to these species were not visualized in the DGGE profile but the specific PCR gave a positive result.

• 한국수산과학회지
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• 제42권4호
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• pp.387-394
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• 2009

Marine algal flora and community structure were examined seasonally at four study sites around Taean Power Plant, Korea from Jan. to Nov. 2006. A total of 73 algae species (12 green, 9 brown, 52 red) and 1 marine plant were identified. The number of species was maximal at the power plant Discharge (57 species) site followed by Hakampo (46 species), Intake (28 species) and Breakwater (15 species) sites during the study period. The average biomass in dry weight varied from 13.12g/m2 at Intake to 69.60g/m2 at Hakampo. Dominant and sub dominant species in terms of biomass were Gelidium divaricatum - Ulva pertusa at Intake, Chondria crassicaulis - Ulva pertusa at Discharge, Corallin a pilulifera - Chondrus ocellatus at Breakwater, and Corallina pilulifera - Sargassum thunbergii at Hakampo. Species richness of warm tolerant and green algae were greater at Discharge site than Hakampo, showing similar species richness. However, community indices were not distinguishable between Discharge and other study sites. In conclusion, species richness and biomass of seaweeds were greater at Discharge site compared to intake and breakwater sites, and the abundance of warm tolerant and green algal species were higher than Hakampo.