• 환경생물
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• 제25권3호
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• pp.279-287
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• 2007

1997년도 가을 (10월), 1998년도 여름 (1월), 2002년도의 봄 (5월)과 가을 (10월)의 4회에 걸쳐 함경남도 신포특구내 북청 남대천 수계, 현금호, 대인호 및 호만포호에서 어류상을 조사한 결과 총 11과 29종의 어류가 확인되었으며 이중 잉어과가 약 28%를 차지하였다. 천연기념물 및 희귀어류는 확인되지 않았으며 상업용도의 어류가 10종, 소하성어류가 5종, 기수역어류가 5종으로 나타났다. 식성에 있어서는 육식성어종이 11종, 초식성어종이 2종, 잡식성어종이 7종이었다. 지점별로는 남대천이 7과 20종, 현금호가 7과 21종, 대인호가 8과 23종, 호만포호가 6과 18종으로 나타났다. 종의 풍부도와 다양도 및 균등도는 대인호가 가장 높았으며 종의 우점도는 현금호가 가장 높게 나타났다.

• 한국패류학회지
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• 제25권3호
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• pp.211-212
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• 2009

One Iravadiid shell Iravadia (Fluviocingula) elegantula (A. Adams, 1861), from the brackish waters in Kangwon-do was recorded as new to the Korean molluscan fauna. The shell is typically solid and narrowely ovate-conic. The protoconch is small, planorboid to depressed dome-shaped, typically with a minute first whorl. Including the new records in this study, the family Iravadiidae contained 2 genera and 3 species in the Korean water.

• Animal Systematics, Evolution and Diversity
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• 제25권3호
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• pp.215-225
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• 2009

Three harpacticoid species of the family Miraciidae are reported from neritic and brackish waters in Korea: Amphiascus kawamurai Ueda and Nagai, 2005, Schizopera clandestina (Klie, 1924) and Schizopera neglecta Akatova, 1935. Amphiascus kawamurai is newly recorded from Korea. Redescription is provided with the systematic accounts and illustrations of them.

• Animal Systematics, Evolution and Diversity
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• 제33권1호
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• pp.37-44
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• 2017

The present census on freshwater bryozoans in the Han River, Geum River and in lentic water bodies in Gangwon Province revealed three gymnolaemate species. Two of them-Hislopia prolixa Hirose and Mawatari, 2011 and Victorella pavida Saville Kent, 1870 were recorded for the first time from South Korea. Paludicella articulata (Ehrenberg, 1831), on the other hand, had already been documented from a few sites since 1941. The bryozoans, all belonging to the order of Ctenostomata, were found on a variety of substrates in freshwater (H. prolixa and P. articulata) and brackish habitats (V. pavida). Hislopia prolixa had recently been established as a new species and this is the first record for an occurrence outside of Japan, where it had been newly described from Lake Biwa and nearby satellite lakes.

• Animal Systematics, Evolution and Diversity
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• 제8권2호
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• pp.325-330
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• 1992

1984년 4월에 강원도 일원의 경포호, 송지호, 영랑호 등의 기수역에서 채집된 윤형동물을 동정한 결과 Notholca liepetterseni, Keratella cruciformis eichwaldi, Dipleuchlanis propatula propatula의 2과 1종, 2아종이 확인되어 이들을 모두 재기재하였고 아울러 도판을 작성하였다. 이중 Notholca liepetterseni는 한국 미기록종이다.

• Animal cells and systems
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• 제12권4호
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• pp.249-259
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• 2008

A new laophontid copepod species, Apolethon articulatus n. sp., is described from the estuaries and salt marshes in South Korea. Apolethon articulatus is similar to the three congeneric species currently known in sharing the character combination of the elongate first endopodal segment of leg 1 with inner seta and the expansion of second endopodal segments of legs 2-4 with decrease in the number of setae on them. However, A. articulatus differs from them by the separate exopod of female leg 5 and the armature of mandibular palp with 6 setae. Description and taxonomic accounts of the new species are presented herein with detailed illustrations and SEM micrographs. As the true identity of the rarely known genus has not been clarified yet, a revised generic diagnosis is provided with a key to the species hitherto known in the genus.

• Parasites, Hosts and Diseases
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• 제21권1호
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• pp.6-10
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• 1983

경북 월성군 양북면을 관류하는 대종천에 괴식하는 담수어와 반철수어에서의 흡충류 피설유충 기생상을 알아 보기 위해 1982년 6월부터 10월까지 5개월간 대종천 유역의 3개동, 대본동, 구길동과 호암동에서 투강낚시, 사발모지 등으로 담수어와 반철수어를 채금하였다. 채집된 어류는 어종별로 분류한 다음 어체부위별로 흡충류 피낭유충의 기생상을 조사함과 동시에 신선한 어육 1 gram당 피설유충를 계산하여 감염정도를 추정하였다. 대종천에서 채집된 담수어는 붕어, 꼬치동자개, 버들치, 납지리, 메기 등 5종이었고. 반광수어는 은어와 숭어 2종이 었다. 채집된 7종의 어류에서 4종의 흡충류 피설유충, Exorchis cviformis, Metacercaria hasegawai, Metagonimus yokogawai, Metorchis orientalis와 소속미정 유충을 검출할 수 있었다. 인체에 기생하는 횡천흡충 피예유충은 수은의 담수어, 붕어, 봉치동자개, 떠들치와 1종의 반철수산어, 은어에서 검출할 수 있었으며, 그 기생률은 어종별로 크게 달랐다. 어흉 1 gram당 횡천흡충 피예유충의 평균수는 붕어, 꼬치동자개, 버들치에서는 모두 1개 이하였는데 비하여 은어에서는 109.2개로서 담수어보다 반섬수어에서 그 수가 많았다. 이상의 성적으로 미루어 보아 경북 대종천에 서식하고 있는 담수어와 반함수어의 회를 생식하면 횡천흡충에 감업될 것으로 추정된다.

• 한국재료학회지
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• 제29권1호
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• pp.16-22
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• 2019

Indirect oxidation using chlorine species oxidizing agents is often effective in wastewater treatment using an electrochemical oxidation process. When chlorine ions are contained in the wastewater, oxidizing agents of various chlorine species are produced during electrolysis. In a ballast water management system, it is also used to treat ballast water by electrolyzing seawater to produce a chlorine species oxidizer. However, ballast water in the brackish zone and some wastewater has a low chlorine ion concentration. Therefore, it is necessary to study the chlorine generation current efficiency at various chlorine concentration conditions. In this study, the chlorine generating current efficiency of a boron-doped diamond(BDD) electrode and insoluble electrodes are compared with various chloride ion concentrations. The results of this study show that the current efficiency of the BDD electrode is better than that of the insoluble electrodes. The chlorine generation current efficiency is better in the order of BDD, MMO(mixed metal oxide), $Ti/RuO_2$, and $Ti/IrO_2$ electrodes. In particular, when the concentration of sodium chloride is 10 g/L or less, the current efficiency of the BDD electrode is excellent.

• 환경생물
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• 제35권3호
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• pp.215-226
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• 2017

A study on indigenous diatoms was carried out at 10 sites from May 2014 to December 2016 in marine and freshwater in Korea. Seventeen species of diatoms are new to Korea and they are divided into 3 classes, 4 subclasses, 10 orders, 14 families, and 16 genera. The nomenclatures, references, dimensions, specimens examined, local habitat, distribution in Korea, and photograph are reported here. Seventeen species found in marine, freshwater, and brackish water showed species-specific habitats.

• 환경생물
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• 제36권3호
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• pp.271-276
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• 2018

Phytoplanktons were collected from various environments including small marshes, small ponds, reservoirs and brackish water from March 2017 to November 2017. In this study, five species of family Scenedesmaceae were newly recorded in Korea. The genus Desmodesmus was newly reported in Korea. The newly recorded species are Scenedesmus nanus, S. praetervisus, Desmodesmus costato-granulatus, D. lunatus and D. spinulatus. S. nanus and S. praetervisus are known to occur in freshwater, but they were found in the brackish water in this study.