Loading…
Nutrient dynamics and successional changes in a lentic freshwater biofilm
SUMMARY 1. Colonisation, species composition, succession of microalgae and nutrient dynamics in biofilms grown under light and dark conditions were examined during the initial phases of biofilm development in a lentic freshwater environment. 2. Biofilms were developed on inert (perspex) panels under...
Saved in:
| Published in: | Freshwater biology 2002-10, Vol.47 (10), p.1893-1907 |
|---|---|
| Main Authors: | , , , |
| Format: | Article |
| Language: | English |
| Subjects: | |
| Citations: | Items that this one cites Items that cite this one |
| Online Access: | Get full text |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| cited_by | cdi_FETCH-LOGICAL-c5026-e464d55a0d773e9eec90344cc7c2b749e99296b83520380863849fabdf61e27d3 |
|---|---|
| cites | cdi_FETCH-LOGICAL-c5026-e464d55a0d773e9eec90344cc7c2b749e99296b83520380863849fabdf61e27d3 |
| container_end_page | 1907 |
| container_issue | 10 |
| container_start_page | 1893 |
| container_title | Freshwater biology |
| container_volume | 47 |
| creator | Sekar, R. Nair, K.V.K. Rao, V.N.R. Venugopalan, V.P. |
| description | SUMMARY 1. Colonisation, species composition, succession of microalgae and nutrient dynamics in biofilms grown under light and dark conditions were examined during the initial phases of biofilm development in a lentic freshwater environment.
2. Biofilms were developed on inert (perspex) panels under natural illuminated and experimental dark conditions and the panels were retrieved for analysis after different incubation periods. Analysed parameters included biofilm thickness, algal density, biomass, chlorophyll a, species composition, total bacterial density and nutrients such as nitrite, nitrate, phosphate and silicate.
3. Biofilm thickness, algal density, biomass, chlorophyll a and species richness were significantly higher in light‐grown biofilms, compared with dark‐grown biofilms. The light‐grown biofilms showed a three‐phased succession pattern, with an initial domination of Chlorophyceae followed by diatoms (Bacillariophyceae) and finally by cyanobacteria. Dark‐grown biofilms were mostly dominated by diatoms.
4. Nutrients were invariably more concentrated in biofilms than in ambient water. Nutrient concentrations were generally higher in dark‐grown biofilms except in the case of phosphate, which was more concentrated in light‐grown biofilms. Significant correlations between nutrients and biofilm parameters were observed only in light‐grown biofilms.
5. The N : P ratio in the biofilm matrix decreased sharply in the initial 4 days of biofilm growth; ensuing N‐limitation status seemed to influence biofilm community structure. The N : P ratios showed significant positive correlations with the chlorophycean fraction in both light and dark‐grown biofilms, and low N : P ratio in the older biofilms favoured cyanobacteria. Our data indicate that nutrient chemistry of biofilm matrix shapes community structure in microalgal biofilms. |
| doi_str_mv | 10.1046/j.1365-2427.2002.00936.x |
| format | article |
| fullrecord | <record><control><sourceid>proquest_cross</sourceid><recordid>TN_cdi_proquest_miscellaneous_18500454</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><sourcerecordid>219990891</sourcerecordid><originalsourceid>FETCH-LOGICAL-c5026-e464d55a0d773e9eec90344cc7c2b749e99296b83520380863849fabdf61e27d3</originalsourceid><addsrcrecordid>eNqNkE1v1DAQhi0EEkvLf7CQ4JYw_o4lLlDoB2rLhbZHy-tMqJds0tqJuvvv8bJVK3HiNCPN877SPIRQBjUDqT-uaia0qrjkpuYAvAawQtebF2TxdHhJFlDYSoGB1-RNzisAaJThC3J2OU8p4jDRdjv4dQyZ-qGleQ4Bc47j4Hsabv3wCzONA_W0L2wMtEuYbx_8hIku49jFfn1IXnW-z_j2cR6Qq-NvP49Oq_MfJ2dHn8-roIDrCqWWrVIeWmMEWsRgQUgZggl8aaRFa7nVy0YoDqKBRotG2s4v204z5KYVB-TDvvcujfcz5smtYw7Y937Acc6ONao8q2QB3_0DrsY5lYey44JJrZoGCtTsoZDGnBN27i7FtU9bx8DtBLuV23l0O49uJ9j9Few2Jfr-sd_n4Psu-SHE_JwXlhvOVOE-7bmH2OP2v_vd8c2XspR4tY_HPOHmKe7Tb6eNMMrdXJ44e3Fxzb6ecvdd_AEjNJv5</addsrcrecordid><sourcetype>Aggregation Database</sourcetype><iscdi>true</iscdi><recordtype>article</recordtype><pqid>231465880</pqid></control><display><type>article</type><title>Nutrient dynamics and successional changes in a lentic freshwater biofilm</title><source>Wiley-Blackwell Journals</source><creator>Sekar, R. ; Nair, K.V.K. ; Rao, V.N.R. ; Venugopalan, V.P.</creator><creatorcontrib>Sekar, R. ; Nair, K.V.K. ; Rao, V.N.R. ; Venugopalan, V.P.</creatorcontrib><description>SUMMARY 1. Colonisation, species composition, succession of microalgae and nutrient dynamics in biofilms grown under light and dark conditions were examined during the initial phases of biofilm development in a lentic freshwater environment.
2. Biofilms were developed on inert (perspex) panels under natural illuminated and experimental dark conditions and the panels were retrieved for analysis after different incubation periods. Analysed parameters included biofilm thickness, algal density, biomass, chlorophyll a, species composition, total bacterial density and nutrients such as nitrite, nitrate, phosphate and silicate.
3. Biofilm thickness, algal density, biomass, chlorophyll a and species richness were significantly higher in light‐grown biofilms, compared with dark‐grown biofilms. The light‐grown biofilms showed a three‐phased succession pattern, with an initial domination of Chlorophyceae followed by diatoms (Bacillariophyceae) and finally by cyanobacteria. Dark‐grown biofilms were mostly dominated by diatoms.
4. Nutrients were invariably more concentrated in biofilms than in ambient water. Nutrient concentrations were generally higher in dark‐grown biofilms except in the case of phosphate, which was more concentrated in light‐grown biofilms. Significant correlations between nutrients and biofilm parameters were observed only in light‐grown biofilms.
5. The N : P ratio in the biofilm matrix decreased sharply in the initial 4 days of biofilm growth; ensuing N‐limitation status seemed to influence biofilm community structure. The N : P ratios showed significant positive correlations with the chlorophycean fraction in both light and dark‐grown biofilms, and low N : P ratio in the older biofilms favoured cyanobacteria. Our data indicate that nutrient chemistry of biofilm matrix shapes community structure in microalgal biofilms.</description><identifier>ISSN: 0046-5070</identifier><identifier>EISSN: 1365-2427</identifier><identifier>DOI: 10.1046/j.1365-2427.2002.00936.x</identifier><identifier>CODEN: FWBLAB</identifier><language>eng</language><publisher>Oxford, UK: Blackwell Science Ltd</publisher><subject>Animal and plant ecology ; Animal, plant and microbial ecology ; Areal geology. Maps ; biofilm ; Biological and medical sciences ; Earth sciences ; Earth, ocean, space ; Exact sciences and technology ; Fresh water ecosystems ; freshwater ; Fundamental and applied biological sciences. Psychology ; Geologic maps, cartography ; microalgae ; nutrients ; succession ; Synecology</subject><ispartof>Freshwater biology, 2002-10, Vol.47 (10), p.1893-1907</ispartof><rights>2002 INIST-CNRS</rights><rights>Copyright Blackwell Science Ltd. Oct 2002</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c5026-e464d55a0d773e9eec90344cc7c2b749e99296b83520380863849fabdf61e27d3</citedby><cites>FETCH-LOGICAL-c5026-e464d55a0d773e9eec90344cc7c2b749e99296b83520380863849fabdf61e27d3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://onlinelibrary.wiley.com/doi/pdf/10.1046%2Fj.1365-2427.2002.00936.x$$EPDF$$P50$$Gwiley$$H</linktopdf><linktohtml>$$Uhttps://onlinelibrary.wiley.com/doi/full/10.1046%2Fj.1365-2427.2002.00936.x$$EHTML$$P50$$Gwiley$$H</linktohtml><link.rule.ids>315,786,790,27957,27958,50923,51032</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=13927215$$DView record in Pascal Francis$$Hfree_for_read</backlink></links><search><creatorcontrib>Sekar, R.</creatorcontrib><creatorcontrib>Nair, K.V.K.</creatorcontrib><creatorcontrib>Rao, V.N.R.</creatorcontrib><creatorcontrib>Venugopalan, V.P.</creatorcontrib><title>Nutrient dynamics and successional changes in a lentic freshwater biofilm</title><title>Freshwater biology</title><description>SUMMARY 1. Colonisation, species composition, succession of microalgae and nutrient dynamics in biofilms grown under light and dark conditions were examined during the initial phases of biofilm development in a lentic freshwater environment.
2. Biofilms were developed on inert (perspex) panels under natural illuminated and experimental dark conditions and the panels were retrieved for analysis after different incubation periods. Analysed parameters included biofilm thickness, algal density, biomass, chlorophyll a, species composition, total bacterial density and nutrients such as nitrite, nitrate, phosphate and silicate.
3. Biofilm thickness, algal density, biomass, chlorophyll a and species richness were significantly higher in light‐grown biofilms, compared with dark‐grown biofilms. The light‐grown biofilms showed a three‐phased succession pattern, with an initial domination of Chlorophyceae followed by diatoms (Bacillariophyceae) and finally by cyanobacteria. Dark‐grown biofilms were mostly dominated by diatoms.
4. Nutrients were invariably more concentrated in biofilms than in ambient water. Nutrient concentrations were generally higher in dark‐grown biofilms except in the case of phosphate, which was more concentrated in light‐grown biofilms. Significant correlations between nutrients and biofilm parameters were observed only in light‐grown biofilms.
5. The N : P ratio in the biofilm matrix decreased sharply in the initial 4 days of biofilm growth; ensuing N‐limitation status seemed to influence biofilm community structure. The N : P ratios showed significant positive correlations with the chlorophycean fraction in both light and dark‐grown biofilms, and low N : P ratio in the older biofilms favoured cyanobacteria. Our data indicate that nutrient chemistry of biofilm matrix shapes community structure in microalgal biofilms.</description><subject>Animal and plant ecology</subject><subject>Animal, plant and microbial ecology</subject><subject>Areal geology. Maps</subject><subject>biofilm</subject><subject>Biological and medical sciences</subject><subject>Earth sciences</subject><subject>Earth, ocean, space</subject><subject>Exact sciences and technology</subject><subject>Fresh water ecosystems</subject><subject>freshwater</subject><subject>Fundamental and applied biological sciences. Psychology</subject><subject>Geologic maps, cartography</subject><subject>microalgae</subject><subject>nutrients</subject><subject>succession</subject><subject>Synecology</subject><issn>0046-5070</issn><issn>1365-2427</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2002</creationdate><recordtype>article</recordtype><recordid>eNqNkE1v1DAQhi0EEkvLf7CQ4JYw_o4lLlDoB2rLhbZHy-tMqJds0tqJuvvv8bJVK3HiNCPN877SPIRQBjUDqT-uaia0qrjkpuYAvAawQtebF2TxdHhJFlDYSoGB1-RNzisAaJThC3J2OU8p4jDRdjv4dQyZ-qGleQ4Bc47j4Hsabv3wCzONA_W0L2wMtEuYbx_8hIku49jFfn1IXnW-z_j2cR6Qq-NvP49Oq_MfJ2dHn8-roIDrCqWWrVIeWmMEWsRgQUgZggl8aaRFa7nVy0YoDqKBRotG2s4v204z5KYVB-TDvvcujfcz5smtYw7Y937Acc6ONao8q2QB3_0DrsY5lYey44JJrZoGCtTsoZDGnBN27i7FtU9bx8DtBLuV23l0O49uJ9j9Few2Jfr-sd_n4Psu-SHE_JwXlhvOVOE-7bmH2OP2v_vd8c2XspR4tY_HPOHmKe7Tb6eNMMrdXJ44e3Fxzb6ecvdd_AEjNJv5</recordid><startdate>200210</startdate><enddate>200210</enddate><creator>Sekar, R.</creator><creator>Nair, K.V.K.</creator><creator>Rao, V.N.R.</creator><creator>Venugopalan, V.P.</creator><general>Blackwell Science Ltd</general><general>Blackwell Science</general><general>Wiley Subscription Services, Inc</general><scope>BSCLL</scope><scope>IQODW</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7QH</scope><scope>7SN</scope><scope>7SS</scope><scope>7UA</scope><scope>C1K</scope><scope>F1W</scope><scope>H95</scope><scope>L.G</scope><scope>M7N</scope></search><sort><creationdate>200210</creationdate><title>Nutrient dynamics and successional changes in a lentic freshwater biofilm</title><author>Sekar, R. ; Nair, K.V.K. ; Rao, V.N.R. ; Venugopalan, V.P.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c5026-e464d55a0d773e9eec90344cc7c2b749e99296b83520380863849fabdf61e27d3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2002</creationdate><topic>Animal and plant ecology</topic><topic>Animal, plant and microbial ecology</topic><topic>Areal geology. Maps</topic><topic>biofilm</topic><topic>Biological and medical sciences</topic><topic>Earth sciences</topic><topic>Earth, ocean, space</topic><topic>Exact sciences and technology</topic><topic>Fresh water ecosystems</topic><topic>freshwater</topic><topic>Fundamental and applied biological sciences. Psychology</topic><topic>Geologic maps, cartography</topic><topic>microalgae</topic><topic>nutrients</topic><topic>succession</topic><topic>Synecology</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Sekar, R.</creatorcontrib><creatorcontrib>Nair, K.V.K.</creatorcontrib><creatorcontrib>Rao, V.N.R.</creatorcontrib><creatorcontrib>Venugopalan, V.P.</creatorcontrib><collection>Istex</collection><collection>Pascal-Francis</collection><collection>CrossRef</collection><collection>Aqualine</collection><collection>Ecology Abstracts</collection><collection>Entomology Abstracts (Full archive)</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) Professional</collection><collection>Algology Mycology and Protozoology Abstracts (Microbiology C)</collection><jtitle>Freshwater biology</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Sekar, R.</au><au>Nair, K.V.K.</au><au>Rao, V.N.R.</au><au>Venugopalan, V.P.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Nutrient dynamics and successional changes in a lentic freshwater biofilm</atitle><jtitle>Freshwater biology</jtitle><date>2002-10</date><risdate>2002</risdate><volume>47</volume><issue>10</issue><spage>1893</spage><epage>1907</epage><pages>1893-1907</pages><issn>0046-5070</issn><eissn>1365-2427</eissn><coden>FWBLAB</coden><notes>ark:/67375/WNG-9MMV1DH2-J</notes><notes>ArticleID:936</notes><notes>istex:546FB6A95E7598CB749B01D713858F98645D386C</notes><notes>ObjectType-Article-2</notes><notes>SourceType-Scholarly Journals-1</notes><notes>ObjectType-Feature-1</notes><notes>content type line 23</notes><abstract>SUMMARY 1. Colonisation, species composition, succession of microalgae and nutrient dynamics in biofilms grown under light and dark conditions were examined during the initial phases of biofilm development in a lentic freshwater environment.
2. Biofilms were developed on inert (perspex) panels under natural illuminated and experimental dark conditions and the panels were retrieved for analysis after different incubation periods. Analysed parameters included biofilm thickness, algal density, biomass, chlorophyll a, species composition, total bacterial density and nutrients such as nitrite, nitrate, phosphate and silicate.
3. Biofilm thickness, algal density, biomass, chlorophyll a and species richness were significantly higher in light‐grown biofilms, compared with dark‐grown biofilms. The light‐grown biofilms showed a three‐phased succession pattern, with an initial domination of Chlorophyceae followed by diatoms (Bacillariophyceae) and finally by cyanobacteria. Dark‐grown biofilms were mostly dominated by diatoms.
4. Nutrients were invariably more concentrated in biofilms than in ambient water. Nutrient concentrations were generally higher in dark‐grown biofilms except in the case of phosphate, which was more concentrated in light‐grown biofilms. Significant correlations between nutrients and biofilm parameters were observed only in light‐grown biofilms.
5. The N : P ratio in the biofilm matrix decreased sharply in the initial 4 days of biofilm growth; ensuing N‐limitation status seemed to influence biofilm community structure. The N : P ratios showed significant positive correlations with the chlorophycean fraction in both light and dark‐grown biofilms, and low N : P ratio in the older biofilms favoured cyanobacteria. Our data indicate that nutrient chemistry of biofilm matrix shapes community structure in microalgal biofilms.</abstract><cop>Oxford, UK</cop><pub>Blackwell Science Ltd</pub><doi>10.1046/j.1365-2427.2002.00936.x</doi><tpages>15</tpages></addata></record> |
| fulltext | fulltext |
| identifier | ISSN: 0046-5070 |
| ispartof | Freshwater biology, 2002-10, Vol.47 (10), p.1893-1907 |
| issn | 0046-5070 1365-2427 |
| language | eng |
| recordid | cdi_proquest_miscellaneous_18500454 |
| source | Wiley-Blackwell Journals |
| subjects | Animal and plant ecology Animal, plant and microbial ecology Areal geology. Maps biofilm Biological and medical sciences Earth sciences Earth, ocean, space Exact sciences and technology Fresh water ecosystems freshwater Fundamental and applied biological sciences. Psychology Geologic maps, cartography microalgae nutrients succession Synecology |
| title | Nutrient dynamics and successional changes in a lentic freshwater biofilm |
| url | http://sfxeu10.hosted.exlibrisgroup.com/loughborough?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&ctx_tim=2024-09-22T18%3A30%3A38IST&url_ver=Z39.88-2004&url_ctx_fmt=infofi/fmt:kev:mtx:ctx&rfr_id=info:sid/primo.exlibrisgroup.com:primo3-Article-proquest_cross&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.atitle=Nutrient%20dynamics%20and%20successional%20changes%20in%20a%20lentic%20freshwater%20biofilm&rft.jtitle=Freshwater%20biology&rft.au=Sekar,%20R.&rft.date=2002-10&rft.volume=47&rft.issue=10&rft.spage=1893&rft.epage=1907&rft.pages=1893-1907&rft.issn=0046-5070&rft.eissn=1365-2427&rft.coden=FWBLAB&rft_id=info:doi/10.1046/j.1365-2427.2002.00936.x&rft_dat=%3Cproquest_cross%3E219990891%3C/proquest_cross%3E%3Cgrp_id%3Ecdi_FETCH-LOGICAL-c5026-e464d55a0d773e9eec90344cc7c2b749e99296b83520380863849fabdf61e27d3%3C/grp_id%3E%3Coa%3E%3C/oa%3E%3Curl%3E%3C/url%3E&rft_id=info:oai/&rft_pqid=231465880&rft_id=info:pmid/&rfr_iscdi=true |