Temporal variation in the vertical distribution of microphytobenthos in intertidal flats of the Nakdong River estuary, Korea
The vertical distribution of microphytobenthos (MPB) was investigated in intertidal flats of the Nakdong River estuary over different temporal periods. The MPB biomass were measured as chlorophyll a concentration in the sediment, and monitored at two different depth scales. From August 2006 to Augus...
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| Veröffentlicht in: | Estuarine, coastal and shelf science coastal and shelf science, 2010, Vol.86 (1), p.62-70 |
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| creator | Du, Guo Ying Son, Moonho An, Soonmo Chung, Ik Kyo |
| description | The vertical distribution of microphytobenthos (MPB) was investigated in intertidal flats of the Nakdong River estuary over different temporal periods. The MPB biomass were measured as chlorophyll
a concentration in the sediment, and monitored at two different depth scales. From August 2006 to August 2007, monthly sampling was carried out at four sites to a depth of 10
cm. The vertical distribution exhibited an exponential decline with depth and the slope was closely related to sediment composition and MPB biomass in the surface sediment. The two slightly muddy sand (5–25% mud, |
| doi_str_mv | 10.1016/j.ecss.2009.10.008 |
| format | Article |
| fullrecord | <record><control><sourceid>proquest_cross</sourceid><recordid>TN_cdi_proquest_miscellaneous_746001990</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><els_id>S0272771409004752</els_id><sourcerecordid>746001990</sourcerecordid><originalsourceid>FETCH-LOGICAL-c395t-22550c5249706c327d89676e4a0e1aeb67cbe8e95420fc6c8b304470fae3f27e3</originalsourceid><addsrcrecordid>eNp9kUFv1DAQhS0EEkvhD3DKBcGBLGMnsWOJC6poi6ioVJWz5TgT1ks2XmzvSpX48R2zFceeLM1882b8HmNvOaw5cPlpu0aX0loAaCqsAfpnbMVByxqAd8_ZCoQStVK8fclepbSlKu8asWJ_73C3D9HO1dFGb7MPS-WXKm-wOmLM3lFn9ClHPxz-NcNU7byLYb-5z2HAJW9CKhN-yYUfiZ9mm1MBi8oP-3sMy6_q1pNehSkfbLz_WH0PEe1r9mKyc8I3j-8Z-3nx9e78qr6-ufx2_uW6do3uci1E14HrRKsVSNcINfZaKomtBeQWB6ncgD3qrhUwOen6oYG2VTBZbCahsDlj70-6-xj-HOgGs_PJ4TzbBcMhGdVKMkRrIPLDkySXine0WytCxQklM1KKOJl99Dv6nOFgSihma0oopoRSahQKDb171LeJrJ2iXZxP_yeFED3lVe74fOKQbDl6jCY5j4vD0Ud02YzBP7XmATcIpCE</addsrcrecordid><sourcetype>Aggregation Database</sourcetype><iscdi>true</iscdi><recordtype>article</recordtype><pqid>1671567697</pqid></control><display><type>article</type><title>Temporal variation in the vertical distribution of microphytobenthos in intertidal flats of the Nakdong River estuary, Korea</title><source>Access via ScienceDirect (Elsevier)</source><creator>Du, Guo Ying ; Son, Moonho ; An, Soonmo ; Chung, Ik Kyo</creator><creatorcontrib>Du, Guo Ying ; Son, Moonho ; An, Soonmo ; Chung, Ik Kyo</creatorcontrib><description>The vertical distribution of microphytobenthos (MPB) was investigated in intertidal flats of the Nakdong River estuary over different temporal periods. The MPB biomass were measured as chlorophyll
a concentration in the sediment, and monitored at two different depth scales. From August 2006 to August 2007, monthly sampling was carried out at four sites to a depth of 10
cm. The vertical distribution exhibited an exponential decline with depth and the slope was closely related to sediment composition and MPB biomass in the surface sediment. The two slightly muddy sand (5–25% mud, <63
μm) sites presented similar trends of seasonal variation to a sediment depth of 10
cm, and no statistical difference was observed in their initial values and the slope of the exponential curves applied to each data set. The site with higher mud content also had higher surface biomass, and the fitted exponential curve had a larger slope than sites with more sand content. The seasonal variations of phaeo-pigments compared to chlorophyll
a revealed higher grazing stress on the MPB in summer at the three slightly muddy sand sites, and low grazing stress all year around at the sand (<5% mud) site. In January, April and October 2007, and January 2008, diurnal sampling was conducted at hourly intervals at one slightly muddy sand site. The investigation in January 2007 which was conducted at 1
cm intervals to a depth of 10
cm sediment showed the migration mainly existed in the upper 1
cm. The other diurnal sampling was undertaken to a 1
cm depth at 0.5
mm intervals. An evident migratory rhythm was present, with migration up to the surface during daytime emersion and down into deeper sediment during night and high tide submersion. Migrating cells could reach sediments as deep as 6 or even 10
mm. When the visible thick biofilms formed, the migratory rhythm changed by keeping higher biomass at the surface even at night and during high tide submersion. Generally, the MPB surface biomass was an important factor in structuring the MPB vertical distribution. The vertical distribution to depths of 10
cm was closely related to the sediment composition over the long term, while the MPB migration influenced the vertical distribution over the short term in the top 1
cm of the sediment.</description><identifier>ISSN: 0272-7714</identifier><identifier>EISSN: 1096-0015</identifier><identifier>DOI: 10.1016/j.ecss.2009.10.008</identifier><identifier>CODEN: ECSSD3</identifier><language>eng</language><publisher>Kidlington: Elsevier Ltd</publisher><subject>Animal and plant ecology ; Animal, plant and microbial ecology ; biofilm ; Biological and medical sciences ; Biomass ; Brackish ; Brackish water ecosystems ; diatoms ; Estuaries ; Fresh water ecosystems ; Freshwater ; Fundamental and applied biological sciences. Psychology ; Intervals ; microphytobenthos ; migration ; Mud ; Sampling ; Sand ; Sediments ; Synecology ; Vertical distribution</subject><ispartof>Estuarine, coastal and shelf science, 2010, Vol.86 (1), p.62-70</ispartof><rights>2009 Elsevier Ltd</rights><rights>2015 INIST-CNRS</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c395t-22550c5249706c327d89676e4a0e1aeb67cbe8e95420fc6c8b304470fae3f27e3</citedby><cites>FETCH-LOGICAL-c395t-22550c5249706c327d89676e4a0e1aeb67cbe8e95420fc6c8b304470fae3f27e3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://dx.doi.org/10.1016/j.ecss.2009.10.008$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>314,780,784,3550,4024,27923,27924,27925,45995</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=22280150$$DView record in Pascal Francis$$Hfree_for_read</backlink></links><search><creatorcontrib>Du, Guo Ying</creatorcontrib><creatorcontrib>Son, Moonho</creatorcontrib><creatorcontrib>An, Soonmo</creatorcontrib><creatorcontrib>Chung, Ik Kyo</creatorcontrib><title>Temporal variation in the vertical distribution of microphytobenthos in intertidal flats of the Nakdong River estuary, Korea</title><title>Estuarine, coastal and shelf science</title><description>The vertical distribution of microphytobenthos (MPB) was investigated in intertidal flats of the Nakdong River estuary over different temporal periods. The MPB biomass were measured as chlorophyll
a concentration in the sediment, and monitored at two different depth scales. From August 2006 to August 2007, monthly sampling was carried out at four sites to a depth of 10
cm. The vertical distribution exhibited an exponential decline with depth and the slope was closely related to sediment composition and MPB biomass in the surface sediment. The two slightly muddy sand (5–25% mud, <63
μm) sites presented similar trends of seasonal variation to a sediment depth of 10
cm, and no statistical difference was observed in their initial values and the slope of the exponential curves applied to each data set. The site with higher mud content also had higher surface biomass, and the fitted exponential curve had a larger slope than sites with more sand content. The seasonal variations of phaeo-pigments compared to chlorophyll
a revealed higher grazing stress on the MPB in summer at the three slightly muddy sand sites, and low grazing stress all year around at the sand (<5% mud) site. In January, April and October 2007, and January 2008, diurnal sampling was conducted at hourly intervals at one slightly muddy sand site. The investigation in January 2007 which was conducted at 1
cm intervals to a depth of 10
cm sediment showed the migration mainly existed in the upper 1
cm. The other diurnal sampling was undertaken to a 1
cm depth at 0.5
mm intervals. An evident migratory rhythm was present, with migration up to the surface during daytime emersion and down into deeper sediment during night and high tide submersion. Migrating cells could reach sediments as deep as 6 or even 10
mm. When the visible thick biofilms formed, the migratory rhythm changed by keeping higher biomass at the surface even at night and during high tide submersion. Generally, the MPB surface biomass was an important factor in structuring the MPB vertical distribution. The vertical distribution to depths of 10
cm was closely related to the sediment composition over the long term, while the MPB migration influenced the vertical distribution over the short term in the top 1
cm of the sediment.</description><subject>Animal and plant ecology</subject><subject>Animal, plant and microbial ecology</subject><subject>biofilm</subject><subject>Biological and medical sciences</subject><subject>Biomass</subject><subject>Brackish</subject><subject>Brackish water ecosystems</subject><subject>diatoms</subject><subject>Estuaries</subject><subject>Fresh water ecosystems</subject><subject>Freshwater</subject><subject>Fundamental and applied biological sciences. Psychology</subject><subject>Intervals</subject><subject>microphytobenthos</subject><subject>migration</subject><subject>Mud</subject><subject>Sampling</subject><subject>Sand</subject><subject>Sediments</subject><subject>Synecology</subject><subject>Vertical distribution</subject><issn>0272-7714</issn><issn>1096-0015</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2010</creationdate><recordtype>article</recordtype><recordid>eNp9kUFv1DAQhS0EEkvhD3DKBcGBLGMnsWOJC6poi6ioVJWz5TgT1ks2XmzvSpX48R2zFceeLM1882b8HmNvOaw5cPlpu0aX0loAaCqsAfpnbMVByxqAd8_ZCoQStVK8fclepbSlKu8asWJ_73C3D9HO1dFGb7MPS-WXKm-wOmLM3lFn9ClHPxz-NcNU7byLYb-5z2HAJW9CKhN-yYUfiZ9mm1MBi8oP-3sMy6_q1pNehSkfbLz_WH0PEe1r9mKyc8I3j-8Z-3nx9e78qr6-ufx2_uW6do3uci1E14HrRKsVSNcINfZaKomtBeQWB6ncgD3qrhUwOen6oYG2VTBZbCahsDlj70-6-xj-HOgGs_PJ4TzbBcMhGdVKMkRrIPLDkySXine0WytCxQklM1KKOJl99Dv6nOFgSihma0oopoRSahQKDb171LeJrJ2iXZxP_yeFED3lVe74fOKQbDl6jCY5j4vD0Ud02YzBP7XmATcIpCE</recordid><startdate>2010</startdate><enddate>2010</enddate><creator>Du, Guo Ying</creator><creator>Son, Moonho</creator><creator>An, Soonmo</creator><creator>Chung, Ik Kyo</creator><general>Elsevier Ltd</general><general>Elsevier</general><scope>IQODW</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>8FD</scope><scope>FR3</scope><scope>KR7</scope><scope>7QH</scope><scope>7SN</scope><scope>7TN</scope><scope>7UA</scope><scope>C1K</scope><scope>F1W</scope><scope>H95</scope><scope>H96</scope><scope>L.G</scope></search><sort><creationdate>2010</creationdate><title>Temporal variation in the vertical distribution of microphytobenthos in intertidal flats of the Nakdong River estuary, Korea</title><author>Du, Guo Ying ; Son, Moonho ; An, Soonmo ; Chung, Ik Kyo</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c395t-22550c5249706c327d89676e4a0e1aeb67cbe8e95420fc6c8b304470fae3f27e3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2010</creationdate><topic>Animal and plant ecology</topic><topic>Animal, plant and microbial ecology</topic><topic>biofilm</topic><topic>Biological and medical sciences</topic><topic>Biomass</topic><topic>Brackish</topic><topic>Brackish water ecosystems</topic><topic>diatoms</topic><topic>Estuaries</topic><topic>Fresh water ecosystems</topic><topic>Freshwater</topic><topic>Fundamental and applied biological sciences. Psychology</topic><topic>Intervals</topic><topic>microphytobenthos</topic><topic>migration</topic><topic>Mud</topic><topic>Sampling</topic><topic>Sand</topic><topic>Sediments</topic><topic>Synecology</topic><topic>Vertical distribution</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Du, Guo Ying</creatorcontrib><creatorcontrib>Son, Moonho</creatorcontrib><creatorcontrib>An, Soonmo</creatorcontrib><creatorcontrib>Chung, Ik Kyo</creatorcontrib><collection>Pascal-Francis</collection><collection>CrossRef</collection><collection>Technology Research Database</collection><collection>Engineering Research Database</collection><collection>Civil Engineering Abstracts</collection><collection>Aqualine</collection><collection>Ecology Abstracts</collection><collection>Oceanic Abstracts</collection><collection>Water Resources Abstracts</collection><collection>Environmental Sciences and Pollution Management</collection><collection>ASFA: Aquatic Sciences and Fisheries Abstracts</collection><collection>Aquatic Science & Fisheries Abstracts (ASFA) 1: Biological Sciences & Living Resources</collection><collection>Aquatic Science & Fisheries Abstracts (ASFA) 2: Ocean Technology, Policy & Non-Living Resources</collection><collection>Aquatic Science & Fisheries Abstracts (ASFA) Professional</collection><jtitle>Estuarine, coastal and shelf science</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Du, Guo Ying</au><au>Son, Moonho</au><au>An, Soonmo</au><au>Chung, Ik Kyo</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Temporal variation in the vertical distribution of microphytobenthos in intertidal flats of the Nakdong River estuary, Korea</atitle><jtitle>Estuarine, coastal and shelf science</jtitle><date>2010</date><risdate>2010</risdate><volume>86</volume><issue>1</issue><spage>62</spage><epage>70</epage><pages>62-70</pages><issn>0272-7714</issn><eissn>1096-0015</eissn><coden>ECSSD3</coden><abstract>The vertical distribution of microphytobenthos (MPB) was investigated in intertidal flats of the Nakdong River estuary over different temporal periods. The MPB biomass were measured as chlorophyll
a concentration in the sediment, and monitored at two different depth scales. From August 2006 to August 2007, monthly sampling was carried out at four sites to a depth of 10
cm. The vertical distribution exhibited an exponential decline with depth and the slope was closely related to sediment composition and MPB biomass in the surface sediment. The two slightly muddy sand (5–25% mud, <63
μm) sites presented similar trends of seasonal variation to a sediment depth of 10
cm, and no statistical difference was observed in their initial values and the slope of the exponential curves applied to each data set. The site with higher mud content also had higher surface biomass, and the fitted exponential curve had a larger slope than sites with more sand content. The seasonal variations of phaeo-pigments compared to chlorophyll
a revealed higher grazing stress on the MPB in summer at the three slightly muddy sand sites, and low grazing stress all year around at the sand (<5% mud) site. In January, April and October 2007, and January 2008, diurnal sampling was conducted at hourly intervals at one slightly muddy sand site. The investigation in January 2007 which was conducted at 1
cm intervals to a depth of 10
cm sediment showed the migration mainly existed in the upper 1
cm. The other diurnal sampling was undertaken to a 1
cm depth at 0.5
mm intervals. An evident migratory rhythm was present, with migration up to the surface during daytime emersion and down into deeper sediment during night and high tide submersion. Migrating cells could reach sediments as deep as 6 or even 10
mm. When the visible thick biofilms formed, the migratory rhythm changed by keeping higher biomass at the surface even at night and during high tide submersion. Generally, the MPB surface biomass was an important factor in structuring the MPB vertical distribution. The vertical distribution to depths of 10
cm was closely related to the sediment composition over the long term, while the MPB migration influenced the vertical distribution over the short term in the top 1
cm of the sediment.</abstract><cop>Kidlington</cop><pub>Elsevier Ltd</pub><doi>10.1016/j.ecss.2009.10.008</doi><tpages>9</tpages></addata></record> |
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| ispartof | Estuarine, coastal and shelf science, 2010, Vol.86 (1), p.62-70 |
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| source | Access via ScienceDirect (Elsevier) |
| subjects | Animal and plant ecology Animal, plant and microbial ecology biofilm Biological and medical sciences Biomass Brackish Brackish water ecosystems diatoms Estuaries Fresh water ecosystems Freshwater Fundamental and applied biological sciences. Psychology Intervals microphytobenthos migration Mud Sampling Sand Sediments Synecology Vertical distribution |
| title | Temporal variation in the vertical distribution of microphytobenthos in intertidal flats of the Nakdong River estuary, Korea |
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