Effects of copper and reduced salinity on grazing activity and macroalgae production: a short-term study on a mollusc grazer, Trochus maculatus, and two species of macroalgae in the inner Gulf of Thailand
Grazing is an important structuring process in the marine environment, especially in the tropics where macroalgal standing crop is maintained at low levels by intense herbivory, often despite relatively high levels of primary production. There are several empirical examples of phase shifts following...
Gespeichert in:
| Veröffentlicht in: | Marine biology 2002-05, Vol.140 (5), p.913-919 |
|---|---|
| Hauptverfasser: | , |
| Format: | Artikel |
| Sprache: | eng |
| Schlagworte: | |
| Online-Zugang: | Volltext |
| Tags: |
Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
|
| container_end_page | 919 |
|---|---|
| container_issue | 5 |
| container_start_page | 913 |
| container_title | Marine biology |
| container_volume | 140 |
| creator | ELFWING, T TEDENGREN, M |
| description | Grazing is an important structuring process in the marine environment, especially in the tropics where macroalgal standing crop is maintained at low levels by intense herbivory, often despite relatively high levels of primary production. There are several empirical examples of phase shifts following reductions in herbivory, where hard coral cover decreases while the abundance of large, fleshy macroalgae increases. In the present work the physiological effects of sublethal levels of copper (20 mu g Cu super(2+) l super(-1)) and lowered salinity (20 psu) were studied on the grazer Trochus maculatus and two species of macroalgae, Gracilaria tenuistipitataand Enteromorpha intestinalis.The study was performed in the inner Gulf of Thailand, a polluted area that frequently experiences salinity drops. The two stress factors were applied both in isolation and in combination to evaluate possible synergistic effects. Stress indices used were scope for growth for the grazer and ratios of gross production to respiration for the algae. This study indicates that moderate disturbance in terms of freshwater runoff and ecologically relevant amounts of the heavy metal copper can reduce grazing activity without a corresponding decrease in macroalgae production. |
| doi_str_mv | 10.1007/s00227-001-0763-8 |
| format | Article |
| fullrecord | <record><control><sourceid>proquest_cross</sourceid><recordid>TN_cdi_proquest_miscellaneous_18851359</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><sourcerecordid>131300941</sourcerecordid><originalsourceid>FETCH-LOGICAL-c395t-61ff20ac8ce36424e0e22b73dc9faab0eed65bab8bb8fcdf99f0fc4c21cdc4533</originalsourceid><addsrcrecordid>eNqNks2KFDEUhQtRsB19AHdBUGYxpfmpSiXuZBhHYcBNuw63Ukl3hlSlzY8yPuM8lKnuAcWFuLok9zsn94bTNC8JfkswHt4ljCkdWoxJiwfOWvGo2ZCO0ZYMkj1uNrXdt4xw-rR5ltItrueBsk1zf2Wt0TmhYJEOh4OJCJYJRTMVbSaUwLvF5TsUFrSL8NMtOwQ6u-_r3QrOoGMAvwODDjFUUXZheY8ApX2Iuc0mzijlMh0dAM3B-5L00cvEC7SNQe9LWm2Kh1zSxdE1_wgoHYx25jjYH4-4BeX9WpY66XXxdu1v9-B81T1vnljwybx4qGfN149X28tP7c2X68-XH25azWSfW06spRi00IbxjnYGG0rHgU1aWoARGzPxfoRRjKOwerJSWmx1pynRk-56xs6aNyffuvK3YlJWs0va-DqDCSUpIkRPWC__A2Syk0NXwfN_g5z3naSiX9FXf6G3ocSl7qsoFngghA8VIieoflxK0Vh1iG6GeKcIVmtg1CkwqgZGrYFRompePxhD0uBthEW79FvIBJecCvYLjoLE6A</addsrcrecordid><sourcetype>Aggregation Database</sourcetype><iscdi>true</iscdi><recordtype>article</recordtype><pqid>208071167</pqid></control><display><type>article</type><title>Effects of copper and reduced salinity on grazing activity and macroalgae production: a short-term study on a mollusc grazer, Trochus maculatus, and two species of macroalgae in the inner Gulf of Thailand</title><source>SpringerLink Journals - AutoHoldings</source><creator>ELFWING, T ; TEDENGREN, M</creator><creatorcontrib>ELFWING, T ; TEDENGREN, M</creatorcontrib><description>Grazing is an important structuring process in the marine environment, especially in the tropics where macroalgal standing crop is maintained at low levels by intense herbivory, often despite relatively high levels of primary production. There are several empirical examples of phase shifts following reductions in herbivory, where hard coral cover decreases while the abundance of large, fleshy macroalgae increases. In the present work the physiological effects of sublethal levels of copper (20 mu g Cu super(2+) l super(-1)) and lowered salinity (20 psu) were studied on the grazer Trochus maculatus and two species of macroalgae, Gracilaria tenuistipitataand Enteromorpha intestinalis.The study was performed in the inner Gulf of Thailand, a polluted area that frequently experiences salinity drops. The two stress factors were applied both in isolation and in combination to evaluate possible synergistic effects. Stress indices used were scope for growth for the grazer and ratios of gross production to respiration for the algae. This study indicates that moderate disturbance in terms of freshwater runoff and ecologically relevant amounts of the heavy metal copper can reduce grazing activity without a corresponding decrease in macroalgae production.</description><identifier>ISSN: 0025-3162</identifier><identifier>EISSN: 1432-1793</identifier><identifier>DOI: 10.1007/s00227-001-0763-8</identifier><identifier>CODEN: MBIOAJ</identifier><language>eng</language><publisher>Heidelberg: Springer</publisher><subject>Algae ; Animal, plant and microbial ecology ; Applied ecology ; Biological and medical sciences ; Copper ; Ecotoxicology, biological effects of pollution ; Enteromorpha intestinalis ; Fundamental and applied biological sciences. Psychology ; Gracilaria tenuistipitata ; Grazing ; Herbivory ; Marine ; Marine and brackish environment ; Marine biology ; Marine environment ; Mollusks ; Primary production ; Shellfish ; Trochus maculatus ; Tropical environments</subject><ispartof>Marine biology, 2002-05, Vol.140 (5), p.913-919</ispartof><rights>2002 INIST-CNRS</rights><rights>Springer-Verlag 2002</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c395t-61ff20ac8ce36424e0e22b73dc9faab0eed65bab8bb8fcdf99f0fc4c21cdc4533</citedby></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,780,784,27923,27924</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=13869628$$DView record in Pascal Francis$$Hfree_for_read</backlink></links><search><creatorcontrib>ELFWING, T</creatorcontrib><creatorcontrib>TEDENGREN, M</creatorcontrib><title>Effects of copper and reduced salinity on grazing activity and macroalgae production: a short-term study on a mollusc grazer, Trochus maculatus, and two species of macroalgae in the inner Gulf of Thailand</title><title>Marine biology</title><description>Grazing is an important structuring process in the marine environment, especially in the tropics where macroalgal standing crop is maintained at low levels by intense herbivory, often despite relatively high levels of primary production. There are several empirical examples of phase shifts following reductions in herbivory, where hard coral cover decreases while the abundance of large, fleshy macroalgae increases. In the present work the physiological effects of sublethal levels of copper (20 mu g Cu super(2+) l super(-1)) and lowered salinity (20 psu) were studied on the grazer Trochus maculatus and two species of macroalgae, Gracilaria tenuistipitataand Enteromorpha intestinalis.The study was performed in the inner Gulf of Thailand, a polluted area that frequently experiences salinity drops. The two stress factors were applied both in isolation and in combination to evaluate possible synergistic effects. Stress indices used were scope for growth for the grazer and ratios of gross production to respiration for the algae. This study indicates that moderate disturbance in terms of freshwater runoff and ecologically relevant amounts of the heavy metal copper can reduce grazing activity without a corresponding decrease in macroalgae production.</description><subject>Algae</subject><subject>Animal, plant and microbial ecology</subject><subject>Applied ecology</subject><subject>Biological and medical sciences</subject><subject>Copper</subject><subject>Ecotoxicology, biological effects of pollution</subject><subject>Enteromorpha intestinalis</subject><subject>Fundamental and applied biological sciences. Psychology</subject><subject>Gracilaria tenuistipitata</subject><subject>Grazing</subject><subject>Herbivory</subject><subject>Marine</subject><subject>Marine and brackish environment</subject><subject>Marine biology</subject><subject>Marine environment</subject><subject>Mollusks</subject><subject>Primary production</subject><subject>Shellfish</subject><subject>Trochus maculatus</subject><subject>Tropical environments</subject><issn>0025-3162</issn><issn>1432-1793</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2002</creationdate><recordtype>article</recordtype><sourceid>8G5</sourceid><sourceid>ABUWG</sourceid><sourceid>AFKRA</sourceid><sourceid>AZQEC</sourceid><sourceid>BENPR</sourceid><sourceid>CCPQU</sourceid><sourceid>DWQXO</sourceid><sourceid>GNUQQ</sourceid><sourceid>GUQSH</sourceid><sourceid>M2O</sourceid><recordid>eNqNks2KFDEUhQtRsB19AHdBUGYxpfmpSiXuZBhHYcBNuw63Ukl3hlSlzY8yPuM8lKnuAcWFuLok9zsn94bTNC8JfkswHt4ljCkdWoxJiwfOWvGo2ZCO0ZYMkj1uNrXdt4xw-rR5ltItrueBsk1zf2Wt0TmhYJEOh4OJCJYJRTMVbSaUwLvF5TsUFrSL8NMtOwQ6u-_r3QrOoGMAvwODDjFUUXZheY8ApX2Iuc0mzijlMh0dAM3B-5L00cvEC7SNQe9LWm2Kh1zSxdE1_wgoHYx25jjYH4-4BeX9WpY66XXxdu1v9-B81T1vnljwybx4qGfN149X28tP7c2X68-XH25azWSfW06spRi00IbxjnYGG0rHgU1aWoARGzPxfoRRjKOwerJSWmx1pynRk-56xs6aNyffuvK3YlJWs0va-DqDCSUpIkRPWC__A2Syk0NXwfN_g5z3naSiX9FXf6G3ocSl7qsoFngghA8VIieoflxK0Vh1iG6GeKcIVmtg1CkwqgZGrYFRompePxhD0uBthEW79FvIBJecCvYLjoLE6A</recordid><startdate>20020501</startdate><enddate>20020501</enddate><creator>ELFWING, T</creator><creator>TEDENGREN, M</creator><general>Springer</general><general>Springer Nature B.V</general><scope>IQODW</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>3V.</scope><scope>7QG</scope><scope>7SN</scope><scope>7ST</scope><scope>7TN</scope><scope>7U7</scope><scope>7XB</scope><scope>88A</scope><scope>8AO</scope><scope>8FD</scope><scope>8FE</scope><scope>8FH</scope><scope>8FK</scope><scope>8G5</scope><scope>ABUWG</scope><scope>AEUYN</scope><scope>AFKRA</scope><scope>AZQEC</scope><scope>BBNVY</scope><scope>BENPR</scope><scope>BHPHI</scope><scope>BKSAR</scope><scope>C1K</scope><scope>CCPQU</scope><scope>DWQXO</scope><scope>F1W</scope><scope>FR3</scope><scope>GNUQQ</scope><scope>GUQSH</scope><scope>H95</scope><scope>HCIFZ</scope><scope>L.G</scope><scope>LK8</scope><scope>M2O</scope><scope>M7N</scope><scope>M7P</scope><scope>MBDVC</scope><scope>P64</scope><scope>PCBAR</scope><scope>PQEST</scope><scope>PQQKQ</scope><scope>PQUKI</scope><scope>Q9U</scope><scope>R05</scope><scope>RC3</scope><scope>SOI</scope><scope>7UA</scope><scope>H97</scope></search><sort><creationdate>20020501</creationdate><title>Effects of copper and reduced salinity on grazing activity and macroalgae production: a short-term study on a mollusc grazer, Trochus maculatus, and two species of macroalgae in the inner Gulf of Thailand</title><author>ELFWING, T ; TEDENGREN, M</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c395t-61ff20ac8ce36424e0e22b73dc9faab0eed65bab8bb8fcdf99f0fc4c21cdc4533</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2002</creationdate><topic>Algae</topic><topic>Animal, plant and microbial ecology</topic><topic>Applied ecology</topic><topic>Biological and medical sciences</topic><topic>Copper</topic><topic>Ecotoxicology, biological effects of pollution</topic><topic>Enteromorpha intestinalis</topic><topic>Fundamental and applied biological sciences. Psychology</topic><topic>Gracilaria tenuistipitata</topic><topic>Grazing</topic><topic>Herbivory</topic><topic>Marine</topic><topic>Marine and brackish environment</topic><topic>Marine biology</topic><topic>Marine environment</topic><topic>Mollusks</topic><topic>Primary production</topic><topic>Shellfish</topic><topic>Trochus maculatus</topic><topic>Tropical environments</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>ELFWING, T</creatorcontrib><creatorcontrib>TEDENGREN, M</creatorcontrib><collection>Pascal-Francis</collection><collection>CrossRef</collection><collection>ProQuest Central (Corporate)</collection><collection>Animal Behavior Abstracts</collection><collection>Ecology Abstracts</collection><collection>Environment Abstracts</collection><collection>Oceanic Abstracts</collection><collection>Toxicology Abstracts</collection><collection>ProQuest Central (purchase pre-March 2016)</collection><collection>Biology Database (Alumni Edition)</collection><collection>ProQuest Pharma Collection</collection><collection>Technology Research Database</collection><collection>ProQuest SciTech Collection</collection><collection>ProQuest Natural Science Collection</collection><collection>ProQuest Central (Alumni) (purchase pre-March 2016)</collection><collection>Research Library (Alumni Edition)</collection><collection>ProQuest Central (Alumni Edition)</collection><collection>ProQuest One Sustainability</collection><collection>ProQuest Central UK/Ireland</collection><collection>ProQuest Central Essentials</collection><collection>Biological Science Collection</collection><collection>ProQuest Central</collection><collection>Natural Science Collection</collection><collection>Earth, Atmospheric & Aquatic Science Collection</collection><collection>Environmental Sciences and Pollution Management</collection><collection>ProQuest One Community College</collection><collection>ProQuest Central Korea</collection><collection>ASFA: Aquatic Sciences and Fisheries Abstracts</collection><collection>Engineering Research Database</collection><collection>ProQuest Central Student</collection><collection>Research Library Prep</collection><collection>Aquatic Science & Fisheries Abstracts (ASFA) 1: Biological Sciences & Living Resources</collection><collection>SciTech Premium Collection</collection><collection>Aquatic Science & Fisheries Abstracts (ASFA) Professional</collection><collection>ProQuest Biological Science Collection</collection><collection>Research Library</collection><collection>Algology Mycology and Protozoology Abstracts (Microbiology C)</collection><collection>Biological Science Database</collection><collection>Research Library (Corporate)</collection><collection>Biotechnology and BioEngineering Abstracts</collection><collection>Earth, Atmospheric & Aquatic Science 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 Basic</collection><collection>University of Michigan</collection><collection>Genetics Abstracts</collection><collection>Environment Abstracts</collection><collection>Water Resources Abstracts</collection><collection>Aquatic Science & Fisheries Abstracts (ASFA) 3: Aquatic Pollution & Environmental Quality</collection><jtitle>Marine biology</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>ELFWING, T</au><au>TEDENGREN, M</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Effects of copper and reduced salinity on grazing activity and macroalgae production: a short-term study on a mollusc grazer, Trochus maculatus, and two species of macroalgae in the inner Gulf of Thailand</atitle><jtitle>Marine biology</jtitle><date>2002-05-01</date><risdate>2002</risdate><volume>140</volume><issue>5</issue><spage>913</spage><epage>919</epage><pages>913-919</pages><issn>0025-3162</issn><eissn>1432-1793</eissn><coden>MBIOAJ</coden><abstract>Grazing is an important structuring process in the marine environment, especially in the tropics where macroalgal standing crop is maintained at low levels by intense herbivory, often despite relatively high levels of primary production. There are several empirical examples of phase shifts following reductions in herbivory, where hard coral cover decreases while the abundance of large, fleshy macroalgae increases. In the present work the physiological effects of sublethal levels of copper (20 mu g Cu super(2+) l super(-1)) and lowered salinity (20 psu) were studied on the grazer Trochus maculatus and two species of macroalgae, Gracilaria tenuistipitataand Enteromorpha intestinalis.The study was performed in the inner Gulf of Thailand, a polluted area that frequently experiences salinity drops. The two stress factors were applied both in isolation and in combination to evaluate possible synergistic effects. Stress indices used were scope for growth for the grazer and ratios of gross production to respiration for the algae. This study indicates that moderate disturbance in terms of freshwater runoff and ecologically relevant amounts of the heavy metal copper can reduce grazing activity without a corresponding decrease in macroalgae production.</abstract><cop>Heidelberg</cop><cop>Berlin</cop><pub>Springer</pub><doi>10.1007/s00227-001-0763-8</doi><tpages>7</tpages></addata></record> |
| fulltext | fulltext |
| identifier | ISSN: 0025-3162 |
| ispartof | Marine biology, 2002-05, Vol.140 (5), p.913-919 |
| issn | 0025-3162 1432-1793 |
| language | eng |
| recordid | cdi_proquest_miscellaneous_18851359 |
| source | SpringerLink Journals - AutoHoldings |
| subjects | Algae Animal, plant and microbial ecology Applied ecology Biological and medical sciences Copper Ecotoxicology, biological effects of pollution Enteromorpha intestinalis Fundamental and applied biological sciences. Psychology Gracilaria tenuistipitata Grazing Herbivory Marine Marine and brackish environment Marine biology Marine environment Mollusks Primary production Shellfish Trochus maculatus Tropical environments |
| title | Effects of copper and reduced salinity on grazing activity and macroalgae production: a short-term study on a mollusc grazer, Trochus maculatus, and two species of macroalgae in the inner Gulf of Thailand |
| url | https://sfx.bib-bvb.de/sfx_tum?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&ctx_tim=2025-01-11T09%3A23%3A46IST&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=Effects%20of%20copper%20and%20reduced%20salinity%20on%20grazing%20activity%20and%20macroalgae%20production:%20a%20short-term%20study%20on%20a%20mollusc%20grazer,%20Trochus%20maculatus,%20and%20two%20species%20of%20macroalgae%20in%20the%20inner%20Gulf%20of%20Thailand&rft.jtitle=Marine%20biology&rft.au=ELFWING,%20T&rft.date=2002-05-01&rft.volume=140&rft.issue=5&rft.spage=913&rft.epage=919&rft.pages=913-919&rft.issn=0025-3162&rft.eissn=1432-1793&rft.coden=MBIOAJ&rft_id=info:doi/10.1007/s00227-001-0763-8&rft_dat=%3Cproquest_cross%3E131300941%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=208071167&rft_id=info:pmid/&rfr_iscdi=true |