• 제목/요약/키워드: brackish waters

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Two Harpacticoid Species of Genera Nitokra and Ameira (Harpacticoida: Ameiridae) from Brackish Waters in Korea

  • Chang, Cheon-Young
    • Animal cells and systems
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    • 제11권2호
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    • pp.247-253
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    • 2007
  • A new species of Nitokra and Ameira parvula (Claus) belonging to the family Ameiridae are recorded from brackish waters in South Korea. Nitokra koreanus n. sp. most resembles N. spinipes and N. pietschmanni, however, it is characteristic in having the character combination of ellipsoidal P5 exopod and very short P1 enp 1. Ameira parvula is reported for the first time from the Northwestern Pacific. Description of the new species and the taxonomic accounts of both species are presented.

Newly Reported Diatoms (Bacillariophyta) in Korea from Random Collections in the Freshwater and Coastal Areas

  • Joh, Gyeongje;Lee, Ji-Young
    • 환경생물
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    • 제36권3호
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    • pp.241-251
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    • 2018
  • To find unrecorded diatom species, random materials were collected from the freshwater, brackish water, and coastal waters. Benthic and periphytic diatoms were sampled from twelve localities. Thirteen species belonging to eight genera are newly added to the national flora of diatom. In the intertidal areas, the five species are new to Korea, Anaulus minutus Grunow, Anaulus simonsenii Witkowski & Metzeltin, Eunotogramma laeve Grunow, Eunotogramma productum Grunow, and Nitzschia subcapitellata Hustedt. The following two species are new from brackish waters, Chamaepinnularia krookiformis (Krammer) Lange-Bertalot & Krammer and Cymatoneis ovalis Heiden. The following four species are new from mountain peatlands, Geissleria ignota (Krasske) Lange-Bertlaot & Metzeltin, Chamaepinnularia hassiaca (Krasske) Cantonati & Lange-Bertalot, Chamaepinnularia mediocris (Krasske) Lange-Bertalot and Pinnularia linearidivergens Kulikovskiy, Lange-Bertalot & Metzeltin. The following two species are new from river or streams, Cymbella hustedtii var. compacta Krammer and Cymbella stigmaphora ${\emptyset}strup$.

Three Miraciid Copepods (Harpacticoida, Miraciidae) from South Korea

  • Chang, Cheon-Young
    • 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.

Two Brackish Cyclopoid Copepods from Southern Coast of Korea

  • Yoon, Hong-Ju;Chang, Cheon-Young
    • Animal Systematics, Evolution and Diversity
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    • 제24권3호
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    • pp.241-250
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    • 2008
  • Two brackish cyclopoid species are reported mostly from the estuaries and salt marshes in the southern coast of Korea: Limnoithona sinensis (Burckhardt, 1913) and Apocyclops borneoensis Lindberg, 1954. The two species as well as the genera are newly added to Korean fauna. Herein, the redescription is provided with the systematic accounts and detailed illustrations of them.

New Record of brackish water snail, Iravadia (Fluviocingula) elegantula (Sorbeoconcha:Iravadiidae), in Korea

  • Lee, Jun-Sang;Min, Duk-Ki
    • 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.

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한국산(韓國産) 기수성(汽水性) 소각류(燒脚類) 분류학적(分類學的) 연구(硏究) 1. 한국(韓國)에 있어서 미기록종(未記錄種) Tortanus dextrilobatus Chen and Zhang, 1965 기재(記載)와 Eutortanus 아속(亞屬)의 지리분포(地理分布)에 대하여 (Taxonomic Studies on Brackish Copepods in Korean Waters. I Redescription of Tortanus dextrilobatus Chen and Zhang, 1965 from Korean Waters, with Remarks on Zoogeography of the subgenus Eutortanus)

  • ;윤양호
    • 한국해양학회지
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    • 제27권2호
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    • pp.112-122
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    • 1992
  • 한국남부의 수역에서 지금 까지는 중국남부에서만 출현보고가 있는 calanoid 요강 류 Tortanus dextrilobatus Chen and Jang, 1995가 발견되었기에 여기에 한국산 미기 록종으로 기재한다. 아울러 본 종의 속하는 아속의 표징을 기술함과 동시에 아속종들 의 분포에 대한 봉물지리학적인 고찰을 실시하였다.

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Newly recorded unarmored dinoflagellates in the family Kareniaceae(Gymnodiniales, Dinophyceae) in brackish and coastal waters of Korea

  • Cho, Minji;Choi, Hojoon;Nam, Seung Won;Kim, Sunju
    • 환경생물
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    • 제39권2호
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    • pp.236-244
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    • 2021
  • Unarmored dinoflagellates, in the family Kareniaceae, include harmful or toxic bloom-forming species, which are associated with massive fish kills and mortalities of marine organisms worldwide. The occurrence and distribution of the toxigenic species in the family Kareniaceae were investigated in the brackish and coastal waters of Korea between July 2018 and October 2020. During the survey, we collected seven newly recorded species; Karenia papilionacea, Karlodinium digitatum, Karl. veneficum, Karl. zhouanum, Takayama acrotrocha, T. helix, and T. tasmanica. A total of fifteen strains of the seven taxa were successfully established as clonal cultures and examined using LM, SEM, and molecular phylogeny inferred from LSU rDNA sequences. Herein, we present the taxonomic information, morphological features, and molecular phylogenetic positions of the unrecorded dinoflagellate species collected from Korean coastal waters.

담수와 기수성 남조류의 한국 미기록종 (Unreported Taxa in Freshwater and Brackish Blue-green Algae in South Korea)

  • 김용재;이동현;홍현철
    • 생태와환경
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    • 제56권1호
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    • pp.14-35
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    • 2023
  • 담수와 기수성(호수, 연못, 습지, 하천, 하구, 조간대 포함) 남조류는 2017년 3월부터 2018년 10월까지 43지점에서 채집되었다. 출현한 종수는 2017년도에 담수지점에서 223종류, 기수지점에서 230종류였고, 2018년도에 274종류로 국립생물자원관과 국립낙동강생물자원관에 보고되었다. 이 중에 20종류가 한국 미기록종으로 분류되었으며 다음과 같다. 한국 미기록은 Aphanocapsa marina, Calothrix fusca f. durabilis, Calothrix littoralis, Calothrix parva, Chamaesiphon minimus, Chroococcidiopsis cubana, Chroococcidiopsis fissurarum, Coelosphaerium aerugineum, Dolichospermum mendotae, Eucapsis alpine, Gomphosphaeria cordiformis, Gomphosphaeria natans, Merismopedia danubiana, Lyngbya aestuarii var. gaditana, Tolypothrix tenuis, Pseudocapsa maritima, Pseudocapsa sphaerica, Pseudophormidium tenue, Trichodesmus sp. and Woronichinia elorantae이다.

A Faunistic Study on the Brackish-water Calanoid Copepods from South Korea

  • Lee, Ji-Min;Yoon, Hong-Ju;Chang, Cheon-Young
    • Animal Systematics, Evolution and Diversity
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    • 제23권2호
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    • pp.135-154
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    • 2007
  • Eight calanoid species of 4 genera in 4 families are reported from the various brackish waters such as estuaries, brackish-water lakes, and coastal marshes in South Korea. Among them, Eurytemora affinis (Poppe) and Acartia (Acanthacartia) tsuensis Ito are newly added to Korean copepod fauna. Collection data, brief descriptions, illustrations and distribution maps for the eight species are prepared. A key to the genera and species of the brackish-water calanoids from Korea is also presented.

전기투석 막여과의 이온제거 특성 및 지하염수의 담수화효율 (Selectivity of cations in electrodialysis and its desalination efficiency on brackish water)

  • 최수영;권지향
    • 상하수도학회지
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    • 제27권4호
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    • pp.445-456
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    • 2013
  • In this study, desalination by electrodialysis with ion exchange membranes was applied to synthetic waters with various ion concentrations and also for ground waters from coastal areas in Korea. Electrodialysis performance on the synthetic solutions showed the similar tendency in operation time and current curves, i.e., shorter operation time and higher maximum current with increasing applied voltages. The ED results of synthetic waters with different ion compositions, i.e., $Na_2SO_4$, $MgSO_4$, $CaSO_4$, at the similar conductivity condition, i.e., $1,250{\mu}s/cm$ revealed that effects of mono- and divalent ions on water quality and performance in electrodialysis were different. The divalent ions had less efficiency in the ED compared to monovalent sodium ions and also divalent calcium ions showed better performance than Mg ions. The electrodialysis on the ground waters produced high quality of drinking water. The groundwater from SungRoe however showed a buildup of membrane resistance. Organic matter concentrations and great portions of divalent ions in the groundwater were possible causes of the deteriorated performance.