Phytoplankton processes during a mesoscale iron enrichment in the NE subarctic Pacific: Part I—Biomass and assemblage
We report results from the Subarctic Ecosystem Response to Iron Enrichment Study (SERIES) experiment in waters of the NE subarctic Pacific in which a large scale iron (Fe) enrichment lead to a shift in the phytoplankton assemblage from pico- and nanophytoplankton to one dominated by large diatoms. T...
Gespeichert in:
| Veröffentlicht in: | Deep-sea research. Part II, Topical studies in oceanography Topical studies in oceanography, 2006-10, Vol.53 (20), p.2095-2113 |
|---|---|
| Hauptverfasser: | , , , , |
| Format: | Artikel |
| Sprache: | eng |
| Schlagworte: | |
| Online-Zugang: | Volltext |
| Tags: |
Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
|
| container_end_page | 2113 |
|---|---|
| container_issue | 20 |
| container_start_page | 2095 |
| container_title | Deep-sea research. Part II, Topical studies in oceanography |
| container_volume | 53 |
| creator | Marchetti, Adrian Sherry, Nelson D. Kiyosawa, Hiroshi Tsuda, Atsushi Harrison, Paul J. |
| description | We report results from the Subarctic Ecosystem Response to Iron Enrichment Study (SERIES) experiment in waters of the NE subarctic Pacific in which a large scale iron (Fe) enrichment lead to a shift in the phytoplankton assemblage from pico- and nanophytoplankton to one dominated by large diatoms. The phytoplankton response to the added Fe was monitored for 26 days following two infusions into a 77
km
2 patch of seawater. During the course of the experiment, the resulting algal bloom was constrained within the upper 30
m and spread to a region measuring over 1000
km
2. Phytoplankton chlorophyll
a (chl
a) increased from 0.3
mg
m
−3 to a peak of 6.3
mg
m
−3 18 days after the initial addition of Fe. Water-column integrated chl
a was enhanced 8-fold, reaching a maximum of 114
mg
m
−2 on day 17. The resulting bloom is described in two ecological phases based on dominant phytoplankton groups. In Phase I, which encompassed the initial infusion up to day 10, all size-fractions (0.2–2, 2–20 and >20
μm) increased in biomass as indicated by chl
a, contributing to a surface standing stock of 2
mg
m
−3. In Phase II, from days 10 to 18, the bloom was dominated by microphytoplankton (>20
μm), with a concomitant decrease in phytoplankton |
| doi_str_mv | 10.1016/j.dsr2.2006.05.038 |
| format | Article |
| fullrecord | <record><control><sourceid>proquest_cross</sourceid><recordid>TN_cdi_proquest_miscellaneous_20240466</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><els_id>S0967064506001846</els_id><sourcerecordid>20240466</sourcerecordid><originalsourceid>FETCH-LOGICAL-a420t-4e9278f63689f981e4705bde962c9ca06cc6e86bff3b722c83966ad8141f12803</originalsourceid><addsrcrecordid>eNp9kD2OFDEQhS0EEsPCBYgckXVTdve4bUQCqwVWWsEGEFvu6uodD_0zuDyLNuMQnJCT4NEQE70K3lfS-4R4qaBWoMzrfT1w0rUGMDVsa2jsI7FRtnMVKIDHYgPOdBWYdvtUPGPeA0DTGLcRP293D3k9TGH5ntdFHtKKxEwsh2OKy50MciZeGcNEMqbSoCVF3M20ZBkXmXckP19JPvYhYY4obwPGMeKbcqQsr__8-v0-rnNglmEZZEma-ync0XPxZAwT04t_eSG-fbj6evmpuvny8fry3U0VWg25asnpzo6mMdaNzipqO9j2Azmj0WEAg2jImn4cm77TGm3jjAmDVa0albbQXIhX579l2Y8jcfZzZKSpDKb1yF6DbqE1phT1uYhpZU40-kOKc0gPXoE_OfZ7f3LsT449bH1xXKC3Z4jKhPtIyTNGWpCGmAizH9b4P_wvQs6G7w</addsrcrecordid><sourcetype>Aggregation Database</sourcetype><iscdi>true</iscdi><recordtype>article</recordtype><pqid>20240466</pqid></control><display><type>article</type><title>Phytoplankton processes during a mesoscale iron enrichment in the NE subarctic Pacific: Part I—Biomass and assemblage</title><source>ScienceDirect Journals (5 years ago - present)</source><creator>Marchetti, Adrian ; Sherry, Nelson D. ; Kiyosawa, Hiroshi ; Tsuda, Atsushi ; Harrison, Paul J.</creator><creatorcontrib>Marchetti, Adrian ; Sherry, Nelson D. ; Kiyosawa, Hiroshi ; Tsuda, Atsushi ; Harrison, Paul J.</creatorcontrib><description>We report results from the Subarctic Ecosystem Response to Iron Enrichment Study (SERIES) experiment in waters of the NE subarctic Pacific in which a large scale iron (Fe) enrichment lead to a shift in the phytoplankton assemblage from pico- and nanophytoplankton to one dominated by large diatoms. The phytoplankton response to the added Fe was monitored for 26 days following two infusions into a 77
km
2 patch of seawater. During the course of the experiment, the resulting algal bloom was constrained within the upper 30
m and spread to a region measuring over 1000
km
2. Phytoplankton chlorophyll
a (chl
a) increased from 0.3
mg
m
−3 to a peak of 6.3
mg
m
−3 18 days after the initial addition of Fe. Water-column integrated chl
a was enhanced 8-fold, reaching a maximum of 114
mg
m
−2 on day 17. The resulting bloom is described in two ecological phases based on dominant phytoplankton groups. In Phase I, which encompassed the initial infusion up to day 10, all size-fractions (0.2–2, 2–20 and >20
μm) increased in biomass as indicated by chl
a, contributing to a surface standing stock of 2
mg
m
−3. In Phase II, from days 10 to 18, the bloom was dominated by microphytoplankton (>20
μm), with a concomitant decrease in phytoplankton <20
μm. Microphytoplankton, which initially accounted for 25% of the phytoplankton biomass and increased by a factor of 50, consisted primarily of the pennate diatom genera,
Pseudo-nitzschia, Neodenticula and
Thalassiothrix and the centric diatom genera,
Chaetoceros,
Rhizosolenia, and
Proboscia. Particulate carbon-to-chl
a (PC: chl
a) ratios for large cells (⩾5
μm) decreased 5-fold by day 18, indicative of enhanced cellular chl
a content and increased phytoplankton contributions to PC. Pennate diatoms were most abundant in the patch, although when converted to biovolume, centric diatoms contributed larger amounts of algal carbon (C) to the bloom. A rapid decline in chl
a on day 19 marked the onset of bloom decline. The magnitude, duration and composition of the phytoplankton response to the Fe enrichment clearly depicted a major shift in the structure of the algal assemblage and increased C export potential.</description><identifier>ISSN: 0967-0645</identifier><identifier>EISSN: 1879-0100</identifier><identifier>DOI: 10.1016/j.dsr2.2006.05.038</identifier><language>eng</language><publisher>Elsevier Ltd</publisher><subject>Carbon-to-chlorophyll ratios ; Chaetoceros ; chlorophyll a ; Diatoms ; Fe enrichment ; Marine ; NE subarctic Pacific ; Phytoplankton ; Proboscia ; Pseudo-nitzschia ; Rhizosolenia ; Thalassiothrix</subject><ispartof>Deep-sea research. Part II, Topical studies in oceanography, 2006-10, Vol.53 (20), p.2095-2113</ispartof><rights>2006 Elsevier Ltd</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-a420t-4e9278f63689f981e4705bde962c9ca06cc6e86bff3b722c83966ad8141f12803</citedby><cites>FETCH-LOGICAL-a420t-4e9278f63689f981e4705bde962c9ca06cc6e86bff3b722c83966ad8141f12803</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://dx.doi.org/10.1016/j.dsr2.2006.05.038$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>314,780,784,3550,27924,27925,45995</link.rule.ids></links><search><creatorcontrib>Marchetti, Adrian</creatorcontrib><creatorcontrib>Sherry, Nelson D.</creatorcontrib><creatorcontrib>Kiyosawa, Hiroshi</creatorcontrib><creatorcontrib>Tsuda, Atsushi</creatorcontrib><creatorcontrib>Harrison, Paul J.</creatorcontrib><title>Phytoplankton processes during a mesoscale iron enrichment in the NE subarctic Pacific: Part I—Biomass and assemblage</title><title>Deep-sea research. Part II, Topical studies in oceanography</title><description>We report results from the Subarctic Ecosystem Response to Iron Enrichment Study (SERIES) experiment in waters of the NE subarctic Pacific in which a large scale iron (Fe) enrichment lead to a shift in the phytoplankton assemblage from pico- and nanophytoplankton to one dominated by large diatoms. The phytoplankton response to the added Fe was monitored for 26 days following two infusions into a 77
km
2 patch of seawater. During the course of the experiment, the resulting algal bloom was constrained within the upper 30
m and spread to a region measuring over 1000
km
2. Phytoplankton chlorophyll
a (chl
a) increased from 0.3
mg
m
−3 to a peak of 6.3
mg
m
−3 18 days after the initial addition of Fe. Water-column integrated chl
a was enhanced 8-fold, reaching a maximum of 114
mg
m
−2 on day 17. The resulting bloom is described in two ecological phases based on dominant phytoplankton groups. In Phase I, which encompassed the initial infusion up to day 10, all size-fractions (0.2–2, 2–20 and >20
μm) increased in biomass as indicated by chl
a, contributing to a surface standing stock of 2
mg
m
−3. In Phase II, from days 10 to 18, the bloom was dominated by microphytoplankton (>20
μm), with a concomitant decrease in phytoplankton <20
μm. Microphytoplankton, which initially accounted for 25% of the phytoplankton biomass and increased by a factor of 50, consisted primarily of the pennate diatom genera,
Pseudo-nitzschia, Neodenticula and
Thalassiothrix and the centric diatom genera,
Chaetoceros,
Rhizosolenia, and
Proboscia. Particulate carbon-to-chl
a (PC: chl
a) ratios for large cells (⩾5
μm) decreased 5-fold by day 18, indicative of enhanced cellular chl
a content and increased phytoplankton contributions to PC. Pennate diatoms were most abundant in the patch, although when converted to biovolume, centric diatoms contributed larger amounts of algal carbon (C) to the bloom. A rapid decline in chl
a on day 19 marked the onset of bloom decline. The magnitude, duration and composition of the phytoplankton response to the Fe enrichment clearly depicted a major shift in the structure of the algal assemblage and increased C export potential.</description><subject>Carbon-to-chlorophyll ratios</subject><subject>Chaetoceros</subject><subject>chlorophyll a</subject><subject>Diatoms</subject><subject>Fe enrichment</subject><subject>Marine</subject><subject>NE subarctic Pacific</subject><subject>Phytoplankton</subject><subject>Proboscia</subject><subject>Pseudo-nitzschia</subject><subject>Rhizosolenia</subject><subject>Thalassiothrix</subject><issn>0967-0645</issn><issn>1879-0100</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2006</creationdate><recordtype>article</recordtype><recordid>eNp9kD2OFDEQhS0EEsPCBYgckXVTdve4bUQCqwVWWsEGEFvu6uodD_0zuDyLNuMQnJCT4NEQE70K3lfS-4R4qaBWoMzrfT1w0rUGMDVsa2jsI7FRtnMVKIDHYgPOdBWYdvtUPGPeA0DTGLcRP293D3k9TGH5ntdFHtKKxEwsh2OKy50MciZeGcNEMqbSoCVF3M20ZBkXmXckP19JPvYhYY4obwPGMeKbcqQsr__8-v0-rnNglmEZZEma-ync0XPxZAwT04t_eSG-fbj6evmpuvny8fry3U0VWg25asnpzo6mMdaNzipqO9j2Azmj0WEAg2jImn4cm77TGm3jjAmDVa0albbQXIhX579l2Y8jcfZzZKSpDKb1yF6DbqE1phT1uYhpZU40-kOKc0gPXoE_OfZ7f3LsT449bH1xXKC3Z4jKhPtIyTNGWpCGmAizH9b4P_wvQs6G7w</recordid><startdate>200610</startdate><enddate>200610</enddate><creator>Marchetti, Adrian</creator><creator>Sherry, Nelson D.</creator><creator>Kiyosawa, Hiroshi</creator><creator>Tsuda, Atsushi</creator><creator>Harrison, Paul J.</creator><general>Elsevier Ltd</general><scope>AAYXX</scope><scope>CITATION</scope><scope>7TN</scope><scope>8FD</scope><scope>F1W</scope><scope>FR3</scope><scope>H95</scope><scope>H99</scope><scope>L.F</scope><scope>L.G</scope><scope>M7N</scope><scope>P64</scope></search><sort><creationdate>200610</creationdate><title>Phytoplankton processes during a mesoscale iron enrichment in the NE subarctic Pacific: Part I—Biomass and assemblage</title><author>Marchetti, Adrian ; Sherry, Nelson D. ; Kiyosawa, Hiroshi ; Tsuda, Atsushi ; Harrison, Paul J.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-a420t-4e9278f63689f981e4705bde962c9ca06cc6e86bff3b722c83966ad8141f12803</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2006</creationdate><topic>Carbon-to-chlorophyll ratios</topic><topic>Chaetoceros</topic><topic>chlorophyll a</topic><topic>Diatoms</topic><topic>Fe enrichment</topic><topic>Marine</topic><topic>NE subarctic Pacific</topic><topic>Phytoplankton</topic><topic>Proboscia</topic><topic>Pseudo-nitzschia</topic><topic>Rhizosolenia</topic><topic>Thalassiothrix</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Marchetti, Adrian</creatorcontrib><creatorcontrib>Sherry, Nelson D.</creatorcontrib><creatorcontrib>Kiyosawa, Hiroshi</creatorcontrib><creatorcontrib>Tsuda, Atsushi</creatorcontrib><creatorcontrib>Harrison, Paul J.</creatorcontrib><collection>CrossRef</collection><collection>Oceanic Abstracts</collection><collection>Technology Research Database</collection><collection>ASFA: Aquatic Sciences and Fisheries Abstracts</collection><collection>Engineering Research Database</collection><collection>Aquatic Science & Fisheries Abstracts (ASFA) 1: Biological Sciences & Living Resources</collection><collection>ASFA: Marine Biotechnology Abstracts</collection><collection>Aquatic Science & Fisheries Abstracts (ASFA) Marine Biotechnology Abstracts</collection><collection>Aquatic Science & Fisheries Abstracts (ASFA) Professional</collection><collection>Algology Mycology and Protozoology Abstracts (Microbiology C)</collection><collection>Biotechnology and BioEngineering Abstracts</collection><jtitle>Deep-sea research. Part II, Topical studies in oceanography</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Marchetti, Adrian</au><au>Sherry, Nelson D.</au><au>Kiyosawa, Hiroshi</au><au>Tsuda, Atsushi</au><au>Harrison, Paul J.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Phytoplankton processes during a mesoscale iron enrichment in the NE subarctic Pacific: Part I—Biomass and assemblage</atitle><jtitle>Deep-sea research. Part II, Topical studies in oceanography</jtitle><date>2006-10</date><risdate>2006</risdate><volume>53</volume><issue>20</issue><spage>2095</spage><epage>2113</epage><pages>2095-2113</pages><issn>0967-0645</issn><eissn>1879-0100</eissn><abstract>We report results from the Subarctic Ecosystem Response to Iron Enrichment Study (SERIES) experiment in waters of the NE subarctic Pacific in which a large scale iron (Fe) enrichment lead to a shift in the phytoplankton assemblage from pico- and nanophytoplankton to one dominated by large diatoms. The phytoplankton response to the added Fe was monitored for 26 days following two infusions into a 77
km
2 patch of seawater. During the course of the experiment, the resulting algal bloom was constrained within the upper 30
m and spread to a region measuring over 1000
km
2. Phytoplankton chlorophyll
a (chl
a) increased from 0.3
mg
m
−3 to a peak of 6.3
mg
m
−3 18 days after the initial addition of Fe. Water-column integrated chl
a was enhanced 8-fold, reaching a maximum of 114
mg
m
−2 on day 17. The resulting bloom is described in two ecological phases based on dominant phytoplankton groups. In Phase I, which encompassed the initial infusion up to day 10, all size-fractions (0.2–2, 2–20 and >20
μm) increased in biomass as indicated by chl
a, contributing to a surface standing stock of 2
mg
m
−3. In Phase II, from days 10 to 18, the bloom was dominated by microphytoplankton (>20
μm), with a concomitant decrease in phytoplankton <20
μm. Microphytoplankton, which initially accounted for 25% of the phytoplankton biomass and increased by a factor of 50, consisted primarily of the pennate diatom genera,
Pseudo-nitzschia, Neodenticula and
Thalassiothrix and the centric diatom genera,
Chaetoceros,
Rhizosolenia, and
Proboscia. Particulate carbon-to-chl
a (PC: chl
a) ratios for large cells (⩾5
μm) decreased 5-fold by day 18, indicative of enhanced cellular chl
a content and increased phytoplankton contributions to PC. Pennate diatoms were most abundant in the patch, although when converted to biovolume, centric diatoms contributed larger amounts of algal carbon (C) to the bloom. A rapid decline in chl
a on day 19 marked the onset of bloom decline. The magnitude, duration and composition of the phytoplankton response to the Fe enrichment clearly depicted a major shift in the structure of the algal assemblage and increased C export potential.</abstract><pub>Elsevier Ltd</pub><doi>10.1016/j.dsr2.2006.05.038</doi><tpages>19</tpages></addata></record> |
| fulltext | fulltext |
| identifier | ISSN: 0967-0645 |
| ispartof | Deep-sea research. Part II, Topical studies in oceanography, 2006-10, Vol.53 (20), p.2095-2113 |
| issn | 0967-0645 1879-0100 |
| language | eng |
| recordid | cdi_proquest_miscellaneous_20240466 |
| source | ScienceDirect Journals (5 years ago - present) |
| subjects | Carbon-to-chlorophyll ratios Chaetoceros chlorophyll a Diatoms Fe enrichment Marine NE subarctic Pacific Phytoplankton Proboscia Pseudo-nitzschia Rhizosolenia Thalassiothrix |
| title | Phytoplankton processes during a mesoscale iron enrichment in the NE subarctic Pacific: Part I—Biomass and assemblage |
| url | https://sfx.bib-bvb.de/sfx_tum?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&ctx_tim=2025-01-05T22%3A34%3A25IST&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=Phytoplankton%20processes%20during%20a%20mesoscale%20iron%20enrichment%20in%20the%20NE%20subarctic%20Pacific:%20Part%20I%E2%80%94Biomass%20and%20assemblage&rft.jtitle=Deep-sea%20research.%20Part%20II,%20Topical%20studies%20in%20oceanography&rft.au=Marchetti,%20Adrian&rft.date=2006-10&rft.volume=53&rft.issue=20&rft.spage=2095&rft.epage=2113&rft.pages=2095-2113&rft.issn=0967-0645&rft.eissn=1879-0100&rft_id=info:doi/10.1016/j.dsr2.2006.05.038&rft_dat=%3Cproquest_cross%3E20240466%3C/proquest_cross%3E%3Curl%3E%3C/url%3E&disable_directlink=true&sfx.directlink=off&sfx.report_link=0&rft_id=info:oai/&rft_pqid=20240466&rft_id=info:pmid/&rft_els_id=S0967064506001846&rfr_iscdi=true |