Artigo Revisado por pares

BENTHIC FORAMINIFERA AS BIOINDICATORS OF SALINITY VARIATION IN LAKE SHIHWA, SOUTH KOREA

2015; Cushman Foundation for Foraminiferal Research; Volume: 45; Issue: 3 Linguagem: Inglês

10.2113/gsjfr.45.3.235

ISSN

1943-264X

Autores

Yeon Gyu Lee, Shin Kim, Yong Wan Kim, Da Un Jeong, Jung Sick Lee, Han Jun Woo, Hyun Chool Shin,

Tópico(s)

Marine and coastal plant biology

Resumo

Research Article| July 01, 2015 BENTHIC FORAMINIFERA AS BIOINDICATORS OF SALINITY VARIATION IN LAKE SHIHWA, SOUTH KOREA Yeon Gyu Lee; Yeon Gyu Lee 6 1Faculty of Marine Technology, College of Fisheries and Ocean Science, Chonnam National University, 550-749, Dundeok-Dong Yeosu, Korea 6Correspondence author. E-mail: lyg6342@jnu.ac.kr Search for other works by this author on: GSW Google Scholar Shin Kim; Shin Kim 2National Institute of Environmental Research (NIER), Nakdong River Environmental Research Center, 24 Pyeongri-1, Goryeong-gun, Republic of Korea Search for other works by this author on: GSW Google Scholar Yong Wan Kim; Yong Wan Kim 3Center for Research Facilities, Chonnam National University, 550-749, Dundeok-Dong Yeosu, Korea Search for other works by this author on: GSW Google Scholar Da Un Jeong; Da Un Jeong 1Faculty of Marine Technology, College of Fisheries and Ocean Science, Chonnam National University, 550-749, Dundeok-Dong Yeosu, Korea Search for other works by this author on: GSW Google Scholar Jung Sick Lee; Jung Sick Lee 4Department of Aqualife Medicine, Chonnam National University, 550-749, Dundeok-Dong Yeosu, Korea Search for other works by this author on: GSW Google Scholar Han Jun Woo; Han Jun Woo 5Principal Research Scientiest, Korean Sea Geosystem Research Unit, Korea Institute of Ocean Science & Technology (KIOST), 426-744, Ansan, Korea Search for other works by this author on: GSW Google Scholar Hyun Chool Shin Hyun Chool Shin 1Faculty of Marine Technology, College of Fisheries and Ocean Science, Chonnam National University, 550-749, Dundeok-Dong Yeosu, Korea Search for other works by this author on: GSW Google Scholar Author and Article Information Yeon Gyu Lee 6 1Faculty of Marine Technology, College of Fisheries and Ocean Science, Chonnam National University, 550-749, Dundeok-Dong Yeosu, Korea Shin Kim 2National Institute of Environmental Research (NIER), Nakdong River Environmental Research Center, 24 Pyeongri-1, Goryeong-gun, Republic of Korea Yong Wan Kim 3Center for Research Facilities, Chonnam National University, 550-749, Dundeok-Dong Yeosu, Korea Da Un Jeong 1Faculty of Marine Technology, College of Fisheries and Ocean Science, Chonnam National University, 550-749, Dundeok-Dong Yeosu, Korea Jung Sick Lee 4Department of Aqualife Medicine, Chonnam National University, 550-749, Dundeok-Dong Yeosu, Korea Han Jun Woo 5Principal Research Scientiest, Korean Sea Geosystem Research Unit, Korea Institute of Ocean Science & Technology (KIOST), 426-744, Ansan, Korea Hyun Chool Shin 1Faculty of Marine Technology, College of Fisheries and Ocean Science, Chonnam National University, 550-749, Dundeok-Dong Yeosu, Korea 6Correspondence author. E-mail: lyg6342@jnu.ac.kr Publisher: Cushman Foundation for Foraminiferal Research Received: 11 Mar 2014 Accepted: 10 Sep 2014 First Online: 13 Jul 2017 Online ISSN: 1943-264X Print ISSN: 0096-1191 © 2015 Cushman Foundation for Foraminiferal Research Journal of Foraminiferal Research (2015) 45 (3): 235–249. https://doi.org/10.2113/gsjfr.45.3.235 Article history Received: 11 Mar 2014 Accepted: 10 Sep 2014 First Online: 13 Jul 2017 Cite View This Citation Add to Citation Manager Share Icon Share Facebook Twitter LinkedIn Email Permissions Search Site Citation Yeon Gyu Lee, Shin Kim, Yong Wan Kim, Da Un Jeong, Jung Sick Lee, Han Jun Woo, Hyun Chool Shin; BENTHIC FORAMINIFERA AS BIOINDICATORS OF SALINITY VARIATION IN LAKE SHIHWA, SOUTH KOREA. Journal of Foraminiferal Research 2015;; 45 (3): 235–249. doi: https://doi.org/10.2113/gsjfr.45.3.235 Download citation file: Ris (Zotero) Refmanager EasyBib Bookends Mendeley Papers EndNote RefWorks BibTex toolbar search Search Dropdown Menu toolbar search search input Search input auto suggest filter your search All ContentBy SocietyJournal of Foraminiferal Research Search Advanced Search Abstract Lake Shihwa suffers from trace-metal pollution discharged from the Banweol stream and the Shihwa Industrial Complex. Installation of floodgates in 2001 increased water exchange and decreased trace-metal content, thereby improving the benthic environment within the lake. We analyzed surface sediments (including grain size, pH, trace-metal concentrations), water-quality data, and the assemblages of, and prevalence of deformities in, the benthic foraminifera, to understand the effects of recent changes in salinity variability. Since spatial and temporal distributions of benthic foraminifera are known to vary in response to both biotic and abiotic environmental variables, they are useful indicators of environmental change.Since the installation of floodgates, surface-sediment composition coarsened from silt to sandy mud/muddy sand in response to increased water flow. Trace-metal contaminants (Ni, Cu and Zn) have decreased and are close to the Effect Range-Low (ER-L) designation. We identified 15 species of benthic foraminifera (3 agglutinated, 10 calcareous-hyaline, and 2 calcareous-porcelaneous). Buccella frigida and Elphidium albiumbilicatum were dominant, but seven sampling localities formed a nearly abiotic zone. Although trace contaminants have decreased, a high prevalence of test deformities (up to 65%) was observed, mostly in E. albiumbilicatum. Our findings suggest these abnormalities may be strongly related to the effects of seasonal variation of salinity in Lake Shihwa. 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