Effects of Weir Construction on Phytoplankton Assemblages and Water Quality in a Large River System
Flow regulation is one of the most common anthropogenic factors affecting rivers worldwide. In Korea, 16 weirs were constructed along four major rivers from 2009 to 2012. This study aimed to elucidate initial changes in physical, chemical, and biological variables after the construction of consecuti...
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| Veröffentlicht in: | International journal of environmental research and public health 2018-10, Vol.15 (11), p.2348 |
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| creator | Lee, Hae-Jin Park, Hae-Kyung Cheon, Se-Uk |
| description | Flow regulation is one of the most common anthropogenic factors affecting rivers worldwide. In Korea, 16 weirs were constructed along four major rivers from 2009 to 2012. This study aimed to elucidate initial changes in physical, chemical, and biological variables after the construction of consecutive weirs on the Nakdong River, a major large river system. Water quality variables and phytoplankton cell densities were investigated at eight representative sites and compared with the data recorded before the weir construction. There were spatial and temporal changes in the hydraulic retention time (HRT), total phosphorus (TP), and chlorophyll
concentrations among the eight weir sections. HRT increased after the weir construction, while TP and chlorophyll
tended to decrease from the middle to lower section of the Nakdong River. Furthermore, differences were observed in the phytoplankton community composition between 2006⁻2007 and 2013. There was a marginal decrease in the duration of centric diatom (
) blooms after weir construction. However,
proliferated more extensively during summer and autumn than it did before the weir construction. Our results suggest that changes in hydrological factors, in response to consecutive weir construction, may contribute to greater physical, chemical, and ecological variability. |
| doi_str_mv | 10.3390/ijerph15112348 |
| format | Article |
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concentrations among the eight weir sections. HRT increased after the weir construction, while TP and chlorophyll
tended to decrease from the middle to lower section of the Nakdong River. Furthermore, differences were observed in the phytoplankton community composition between 2006⁻2007 and 2013. There was a marginal decrease in the duration of centric diatom (
) blooms after weir construction. However,
proliferated more extensively during summer and autumn than it did before the weir construction. Our results suggest that changes in hydrological factors, in response to consecutive weir construction, may contribute to greater physical, chemical, and ecological variability.</description><identifier>ISSN: 1660-4601</identifier><identifier>ISSN: 1661-7827</identifier><identifier>EISSN: 1660-4601</identifier><identifier>DOI: 10.3390/ijerph15112348</identifier><identifier>PMID: 30356004</identifier><language>eng</language><publisher>Switzerland: MDPI AG</publisher><subject>Anthropogenic factors ; Biota ; Chemical oxygen demand ; Chlorophyll ; Community composition ; Construction ; Cyanobacteria - physiology ; Hydraulic retention time ; Hydraulics ; Hydrology ; Hypotheses ; Microcystis ; Nitrogen ; Nutrients ; Phosphorus ; Phytoplankton ; Phytoplankton - physiology ; Plankton ; Population Density ; Precipitation ; Republic of Korea ; Retention time ; Rivers ; Rivers - chemistry ; Software ; Surface water ; Water Cycle ; Water Quality ; Water temperature ; Watersheds ; Weirs</subject><ispartof>International journal of environmental research and public health, 2018-10, Vol.15 (11), p.2348</ispartof><rights>2018 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.</rights><rights>2018 by the authors. 2018</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c418t-fa76f8b9765a8411daa0dbee83a6c4eead72cd471f0df6b3d51586debda1e2df3</citedby><cites>FETCH-LOGICAL-c418t-fa76f8b9765a8411daa0dbee83a6c4eead72cd471f0df6b3d51586debda1e2df3</cites><orcidid>0000-0003-2871-8770 ; 0000-0002-0380-7024</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://www.ncbi.nlm.nih.gov/pmc/articles/PMC6265701/pdf/$$EPDF$$P50$$Gpubmedcentral$$Hfree_for_read</linktopdf><linktohtml>$$Uhttps://www.ncbi.nlm.nih.gov/pmc/articles/PMC6265701/$$EHTML$$P50$$Gpubmedcentral$$Hfree_for_read</linktohtml><link.rule.ids>230,314,723,776,780,881,27901,27902,53766,53768</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/30356004$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Lee, Hae-Jin</creatorcontrib><creatorcontrib>Park, Hae-Kyung</creatorcontrib><creatorcontrib>Cheon, Se-Uk</creatorcontrib><title>Effects of Weir Construction on Phytoplankton Assemblages and Water Quality in a Large River System</title><title>International journal of environmental research and public health</title><addtitle>Int J Environ Res Public Health</addtitle><description>Flow regulation is one of the most common anthropogenic factors affecting rivers worldwide. In Korea, 16 weirs were constructed along four major rivers from 2009 to 2012. This study aimed to elucidate initial changes in physical, chemical, and biological variables after the construction of consecutive weirs on the Nakdong River, a major large river system. Water quality variables and phytoplankton cell densities were investigated at eight representative sites and compared with the data recorded before the weir construction. There were spatial and temporal changes in the hydraulic retention time (HRT), total phosphorus (TP), and chlorophyll
concentrations among the eight weir sections. HRT increased after the weir construction, while TP and chlorophyll
tended to decrease from the middle to lower section of the Nakdong River. Furthermore, differences were observed in the phytoplankton community composition between 2006⁻2007 and 2013. There was a marginal decrease in the duration of centric diatom (
) blooms after weir construction. However,
proliferated more extensively during summer and autumn than it did before the weir construction. Our results suggest that changes in hydrological factors, in response to consecutive weir construction, may contribute to greater physical, chemical, and ecological variability.</description><subject>Anthropogenic factors</subject><subject>Biota</subject><subject>Chemical oxygen demand</subject><subject>Chlorophyll</subject><subject>Community composition</subject><subject>Construction</subject><subject>Cyanobacteria - physiology</subject><subject>Hydraulic retention time</subject><subject>Hydraulics</subject><subject>Hydrology</subject><subject>Hypotheses</subject><subject>Microcystis</subject><subject>Nitrogen</subject><subject>Nutrients</subject><subject>Phosphorus</subject><subject>Phytoplankton</subject><subject>Phytoplankton - physiology</subject><subject>Plankton</subject><subject>Population Density</subject><subject>Precipitation</subject><subject>Republic of Korea</subject><subject>Retention time</subject><subject>Rivers</subject><subject>Rivers - chemistry</subject><subject>Software</subject><subject>Surface water</subject><subject>Water Cycle</subject><subject>Water Quality</subject><subject>Water temperature</subject><subject>Watersheds</subject><subject>Weirs</subject><issn>1660-4601</issn><issn>1661-7827</issn><issn>1660-4601</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2018</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><sourceid>BENPR</sourceid><recordid>eNpdkd1rFDEUxYMotlZffZSAL75szcckM_MilKV-wILf9DHcSW52s85M1iRT2P_eSGtphQu54fxyyOEQ8pKzcyl79jbsMR12XHEuZNM9Iqdca7ZqNOOP7-0n5FnOe8Zk1-j-KTmRTCrNWHNK7KX3aEum0dMrDImu45xLWmwJcaZ1vuyOJR5GmH-VervIGadhhC1mCrOjV1Aw0a8LjKEcaZgp0A2kLdJv4boK34-54PScPPEwZnxxe56Rn-8vf6w_rjafP3xaX2xWtuFdWXlote-GvtUKuoZzB8DcgNhJ0LZBBNcK65qWe-a8HqRTXHXa4eCAo3BenpF3N76HZZjQWZxLgtEcUpggHU2EYB4qc9iZbbw2WmjVMl4N3twapPh7wVzMFLLFsabHuGQjuFCSKdaLir7-D93HJc01nhGqEx3ve6UqdX5D2RRzTujvPsOZ-dufedhfffDqfoQ7_F9h8g_ouZnY</recordid><startdate>20181024</startdate><enddate>20181024</enddate><creator>Lee, Hae-Jin</creator><creator>Park, Hae-Kyung</creator><creator>Cheon, Se-Uk</creator><general>MDPI AG</general><general>MDPI</general><scope>CGR</scope><scope>CUY</scope><scope>CVF</scope><scope>ECM</scope><scope>EIF</scope><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>3V.</scope><scope>7X7</scope><scope>7XB</scope><scope>88E</scope><scope>8C1</scope><scope>8FI</scope><scope>8FJ</scope><scope>8FK</scope><scope>ABUWG</scope><scope>AFKRA</scope><scope>AZQEC</scope><scope>BENPR</scope><scope>CCPQU</scope><scope>DWQXO</scope><scope>FYUFA</scope><scope>GHDGH</scope><scope>K9.</scope><scope>M0S</scope><scope>M1P</scope><scope>PIMPY</scope><scope>PQEST</scope><scope>PQQKQ</scope><scope>PQUKI</scope><scope>PRINS</scope><scope>7X8</scope><scope>5PM</scope><orcidid>https://orcid.org/0000-0003-2871-8770</orcidid><orcidid>https://orcid.org/0000-0002-0380-7024</orcidid></search><sort><creationdate>20181024</creationdate><title>Effects of Weir Construction on Phytoplankton Assemblages and Water Quality in a Large River System</title><author>Lee, Hae-Jin ; Park, Hae-Kyung ; Cheon, Se-Uk</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c418t-fa76f8b9765a8411daa0dbee83a6c4eead72cd471f0df6b3d51586debda1e2df3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2018</creationdate><topic>Anthropogenic factors</topic><topic>Biota</topic><topic>Chemical oxygen demand</topic><topic>Chlorophyll</topic><topic>Community composition</topic><topic>Construction</topic><topic>Cyanobacteria - physiology</topic><topic>Hydraulic retention time</topic><topic>Hydraulics</topic><topic>Hydrology</topic><topic>Hypotheses</topic><topic>Microcystis</topic><topic>Nitrogen</topic><topic>Nutrients</topic><topic>Phosphorus</topic><topic>Phytoplankton</topic><topic>Phytoplankton - physiology</topic><topic>Plankton</topic><topic>Population Density</topic><topic>Precipitation</topic><topic>Republic of Korea</topic><topic>Retention time</topic><topic>Rivers</topic><topic>Rivers - chemistry</topic><topic>Software</topic><topic>Surface water</topic><topic>Water Cycle</topic><topic>Water Quality</topic><topic>Water temperature</topic><topic>Watersheds</topic><topic>Weirs</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Lee, Hae-Jin</creatorcontrib><creatorcontrib>Park, Hae-Kyung</creatorcontrib><creatorcontrib>Cheon, Se-Uk</creatorcontrib><collection>Medline</collection><collection>MEDLINE</collection><collection>MEDLINE (Ovid)</collection><collection>MEDLINE</collection><collection>MEDLINE</collection><collection>PubMed</collection><collection>CrossRef</collection><collection>ProQuest Central (Corporate)</collection><collection>Health & Medical Collection</collection><collection>ProQuest Central (purchase pre-March 2016)</collection><collection>Medical Database (Alumni Edition)</collection><collection>Public Health Database</collection><collection>Hospital Premium Collection</collection><collection>Hospital Premium Collection (Alumni Edition)</collection><collection>ProQuest Central (Alumni) (purchase pre-March 2016)</collection><collection>ProQuest Central (Alumni Edition)</collection><collection>ProQuest Central UK/Ireland</collection><collection>ProQuest Central Essentials</collection><collection>ProQuest Central</collection><collection>ProQuest One Community College</collection><collection>ProQuest Central Korea</collection><collection>Health Research Premium Collection</collection><collection>Health Research Premium Collection (Alumni)</collection><collection>ProQuest Health & Medical Complete (Alumni)</collection><collection>Health & Medical Collection (Alumni Edition)</collection><collection>Medical Database</collection><collection>Publicly Available Content Database</collection><collection>ProQuest One Academic Eastern Edition (DO NOT USE)</collection><collection>ProQuest One Academic</collection><collection>ProQuest One Academic UKI Edition</collection><collection>ProQuest Central China</collection><collection>MEDLINE - Academic</collection><collection>PubMed Central (Full Participant titles)</collection><jtitle>International journal of environmental research and public health</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Lee, Hae-Jin</au><au>Park, Hae-Kyung</au><au>Cheon, Se-Uk</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Effects of Weir Construction on Phytoplankton Assemblages and Water Quality in a Large River System</atitle><jtitle>International journal of environmental research and public health</jtitle><addtitle>Int J Environ Res Public Health</addtitle><date>2018-10-24</date><risdate>2018</risdate><volume>15</volume><issue>11</issue><spage>2348</spage><pages>2348-</pages><issn>1660-4601</issn><issn>1661-7827</issn><eissn>1660-4601</eissn><abstract>Flow regulation is one of the most common anthropogenic factors affecting rivers worldwide. In Korea, 16 weirs were constructed along four major rivers from 2009 to 2012. This study aimed to elucidate initial changes in physical, chemical, and biological variables after the construction of consecutive weirs on the Nakdong River, a major large river system. Water quality variables and phytoplankton cell densities were investigated at eight representative sites and compared with the data recorded before the weir construction. There were spatial and temporal changes in the hydraulic retention time (HRT), total phosphorus (TP), and chlorophyll
concentrations among the eight weir sections. HRT increased after the weir construction, while TP and chlorophyll
tended to decrease from the middle to lower section of the Nakdong River. Furthermore, differences were observed in the phytoplankton community composition between 2006⁻2007 and 2013. There was a marginal decrease in the duration of centric diatom (
) blooms after weir construction. However,
proliferated more extensively during summer and autumn than it did before the weir construction. Our results suggest that changes in hydrological factors, in response to consecutive weir construction, may contribute to greater physical, chemical, and ecological variability.</abstract><cop>Switzerland</cop><pub>MDPI AG</pub><pmid>30356004</pmid><doi>10.3390/ijerph15112348</doi><orcidid>https://orcid.org/0000-0003-2871-8770</orcidid><orcidid>https://orcid.org/0000-0002-0380-7024</orcidid><oa>free_for_read</oa></addata></record> |
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| ispartof | International journal of environmental research and public health, 2018-10, Vol.15 (11), p.2348 |
| issn | 1660-4601 1661-7827 1660-4601 |
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| source | MDPI - Multidisciplinary Digital Publishing Institute; MEDLINE; EZB-FREE-00999 freely available EZB journals; PubMed Central; Free Full-Text Journals in Chemistry; PubMed Central Open Access |
| subjects | Anthropogenic factors Biota Chemical oxygen demand Chlorophyll Community composition Construction Cyanobacteria - physiology Hydraulic retention time Hydraulics Hydrology Hypotheses Microcystis Nitrogen Nutrients Phosphorus Phytoplankton Phytoplankton - physiology Plankton Population Density Precipitation Republic of Korea Retention time Rivers Rivers - chemistry Software Surface water Water Cycle Water Quality Water temperature Watersheds Weirs |
| title | Effects of Weir Construction on Phytoplankton Assemblages and Water Quality in a Large River System |
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