Mercury bioaccumulation in dragonflies (Odonata: Anisoptera): Examination of life stages and body regions
Dragonflies (Odonata: Anisoptera) are an important component of both aquatic and terrestrial food webs and are vectors for methylmercury (MeHg) biomagnification. Variations in mercury content with life stage and body regions may affect the relative transfer of mercury to aquatic or terrestrial food...
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| Veröffentlicht in: | Environmental toxicology and chemistry 2014-09, Vol.33 (9), p.2047-2054 |
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| creator | Buckland‐Nicks, Amy Hillier, Kirk Neil Avery, Trevor S O'Driscoll, Nelson J |
| description | Dragonflies (Odonata: Anisoptera) are an important component of both aquatic and terrestrial food webs and are vectors for methylmercury (MeHg) biomagnification. Variations in mercury content with life stage and body regions may affect the relative transfer of mercury to aquatic or terrestrial food webs; however, there has been little research on this subject. Also, little is known about mercury bioaccumulation in different body regions of dragonflies. To address these knowledge gaps, dragonfly naiads, adults, and exuviae were collected at 2 lakes in Kejimkujik National Park, Nova Scotia, Canada, and mercury concentrations in different life stages and body regions were quantified. Mean whole body concentrations of MeHg were substantial in naiads (232 ± 112 ng g⁻¹ dry wt, n = 66), emerging adults (236 ± 50 ng g⁻¹ dry wt, n = 10), and mature adults (231 ± 74 ng g⁻¹ dry wt, n = 20). Mean MeHg concentrations in exuviae (5.6 ± 4.3 ng g⁻¹, n = 32) were 40‐fold lower than in naiads and adults. Emerging adults had 2‐fold to 2.5‐fold higher Hg(II) concentrations than naiads, mature adults, and exuviae. In body regions of both naiads and adults, some abdomens contained significantly higher concentrations of Hg(II) than heads or thoraces, and this trend was consistent across families. Across families, Aeshnidae had significantly higher concentrations of MeHg and total Hg than Gomphidae and Libellulidae, but not higher than Cordulidae. The Hg(II) concentrations were lower in Aeshnidae and Libellulidae than in Gomphidae and Cordulidae. Shedding of exuviae presents a possible mechanism for mercury detoxification, but mercury concentrations and burdens in exuviae are low in comparison with naiads and adults. Dragonfly adults retain a high potential for transferring substantial amounts of MeHg to their predators. Environ Toxicol Chem 2014; 33:2047–2054. © 2014 SETAC |
| doi_str_mv | 10.1002/etc.2653 |
| format | Article |
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Variations in mercury content with life stage and body regions may affect the relative transfer of mercury to aquatic or terrestrial food webs; however, there has been little research on this subject. Also, little is known about mercury bioaccumulation in different body regions of dragonflies. To address these knowledge gaps, dragonfly naiads, adults, and exuviae were collected at 2 lakes in Kejimkujik National Park, Nova Scotia, Canada, and mercury concentrations in different life stages and body regions were quantified. Mean whole body concentrations of MeHg were substantial in naiads (232 ± 112 ng g⁻¹ dry wt, n = 66), emerging adults (236 ± 50 ng g⁻¹ dry wt, n = 10), and mature adults (231 ± 74 ng g⁻¹ dry wt, n = 20). Mean MeHg concentrations in exuviae (5.6 ± 4.3 ng g⁻¹, n = 32) were 40‐fold lower than in naiads and adults. Emerging adults had 2‐fold to 2.5‐fold higher Hg(II) concentrations than naiads, mature adults, and exuviae. In body regions of both naiads and adults, some abdomens contained significantly higher concentrations of Hg(II) than heads or thoraces, and this trend was consistent across families. Across families, Aeshnidae had significantly higher concentrations of MeHg and total Hg than Gomphidae and Libellulidae, but not higher than Cordulidae. The Hg(II) concentrations were lower in Aeshnidae and Libellulidae than in Gomphidae and Cordulidae. Shedding of exuviae presents a possible mechanism for mercury detoxification, but mercury concentrations and burdens in exuviae are low in comparison with naiads and adults. Dragonfly adults retain a high potential for transferring substantial amounts of MeHg to their predators. Environ Toxicol Chem 2014; 33:2047–2054. © 2014 SETAC</description><identifier>ISSN: 0730-7268</identifier><identifier>EISSN: 1552-8618</identifier><identifier>DOI: 10.1002/etc.2653</identifier><identifier>PMID: 24890113</identifier><identifier>CODEN: ETOCDK</identifier><language>eng</language><publisher>Pensacola, FL: Pergamon</publisher><subject>Adults ; Aeshnidae ; Animal, plant and microbial ecology ; Animals ; Anisoptera ; Applied ecology ; Aquatic insects ; Bioaccumulation ; Biological and medical sciences ; Biological magnification ; body regions ; Canada ; Concentration (composition) ; Detoxification ; Drag (hindrance) ; Dragonflies ; Drying ; Ecotoxicology, biological effects of pollution ; Effects of pollution and side effects of pesticides on protozoa and invertebrates ; Food Chain ; Food chains ; Food webs ; Foods ; Fundamental and applied biological sciences. Psychology ; Gomphidae ; Insects ; integument ; Invertebrates ; lakes ; Lakes - analysis ; Libellulidae ; Mercury ; Mercury (metal) ; Mercury - analysis ; Mercury - metabolism ; Methylmercury ; methylmercury compounds ; Methylmercury Compounds - analysis ; Methylmercury Compounds - metabolism ; Naiad ; National parks ; Odonata ; Odonata - anatomy & histology ; Odonata - chemistry ; Odonata - growth & development ; Odonata - metabolism ; Predators ; Water Pollutants, Chemical - analysis ; Water Pollutants, Chemical - metabolism ; Water pollution</subject><ispartof>Environmental toxicology and chemistry, 2014-09, Vol.33 (9), p.2047-2054</ispartof><rights>2014 SETAC</rights><rights>2015 INIST-CNRS</rights><rights>2014 SETAC.</rights><rights>Copyright Blackwell Publishing Ltd. Sep 2014</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c5403-b09ca73eccbf5d6572bb4d76b9045b9eae4bad82e3915334c1bb749511ba60a23</citedby><cites>FETCH-LOGICAL-c5403-b09ca73eccbf5d6572bb4d76b9045b9eae4bad82e3915334c1bb749511ba60a23</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://onlinelibrary.wiley.com/doi/pdf/10.1002%2Fetc.2653$$EPDF$$P50$$Gwiley$$H</linktopdf><linktohtml>$$Uhttps://onlinelibrary.wiley.com/doi/full/10.1002%2Fetc.2653$$EHTML$$P50$$Gwiley$$H</linktohtml><link.rule.ids>314,780,784,1417,27924,27925,45574,45575</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=28756465$$DView record in Pascal Francis$$Hfree_for_read</backlink><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/24890113$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Buckland‐Nicks, Amy</creatorcontrib><creatorcontrib>Hillier, Kirk Neil</creatorcontrib><creatorcontrib>Avery, Trevor S</creatorcontrib><creatorcontrib>O'Driscoll, Nelson J</creatorcontrib><title>Mercury bioaccumulation in dragonflies (Odonata: Anisoptera): Examination of life stages and body regions</title><title>Environmental toxicology and chemistry</title><addtitle>Environ Toxicol Chem</addtitle><description>Dragonflies (Odonata: Anisoptera) are an important component of both aquatic and terrestrial food webs and are vectors for methylmercury (MeHg) biomagnification. Variations in mercury content with life stage and body regions may affect the relative transfer of mercury to aquatic or terrestrial food webs; however, there has been little research on this subject. Also, little is known about mercury bioaccumulation in different body regions of dragonflies. To address these knowledge gaps, dragonfly naiads, adults, and exuviae were collected at 2 lakes in Kejimkujik National Park, Nova Scotia, Canada, and mercury concentrations in different life stages and body regions were quantified. Mean whole body concentrations of MeHg were substantial in naiads (232 ± 112 ng g⁻¹ dry wt, n = 66), emerging adults (236 ± 50 ng g⁻¹ dry wt, n = 10), and mature adults (231 ± 74 ng g⁻¹ dry wt, n = 20). Mean MeHg concentrations in exuviae (5.6 ± 4.3 ng g⁻¹, n = 32) were 40‐fold lower than in naiads and adults. Emerging adults had 2‐fold to 2.5‐fold higher Hg(II) concentrations than naiads, mature adults, and exuviae. In body regions of both naiads and adults, some abdomens contained significantly higher concentrations of Hg(II) than heads or thoraces, and this trend was consistent across families. Across families, Aeshnidae had significantly higher concentrations of MeHg and total Hg than Gomphidae and Libellulidae, but not higher than Cordulidae. The Hg(II) concentrations were lower in Aeshnidae and Libellulidae than in Gomphidae and Cordulidae. Shedding of exuviae presents a possible mechanism for mercury detoxification, but mercury concentrations and burdens in exuviae are low in comparison with naiads and adults. Dragonfly adults retain a high potential for transferring substantial amounts of MeHg to their predators. Environ Toxicol Chem 2014; 33:2047–2054. © 2014 SETAC</description><subject>Adults</subject><subject>Aeshnidae</subject><subject>Animal, plant and microbial ecology</subject><subject>Animals</subject><subject>Anisoptera</subject><subject>Applied ecology</subject><subject>Aquatic insects</subject><subject>Bioaccumulation</subject><subject>Biological and medical sciences</subject><subject>Biological magnification</subject><subject>body regions</subject><subject>Canada</subject><subject>Concentration (composition)</subject><subject>Detoxification</subject><subject>Drag (hindrance)</subject><subject>Dragonflies</subject><subject>Drying</subject><subject>Ecotoxicology, biological effects of pollution</subject><subject>Effects of pollution and side effects of pesticides on protozoa and invertebrates</subject><subject>Food Chain</subject><subject>Food chains</subject><subject>Food webs</subject><subject>Foods</subject><subject>Fundamental and applied biological sciences. Psychology</subject><subject>Gomphidae</subject><subject>Insects</subject><subject>integument</subject><subject>Invertebrates</subject><subject>lakes</subject><subject>Lakes - analysis</subject><subject>Libellulidae</subject><subject>Mercury</subject><subject>Mercury (metal)</subject><subject>Mercury - analysis</subject><subject>Mercury - metabolism</subject><subject>Methylmercury</subject><subject>methylmercury compounds</subject><subject>Methylmercury Compounds - analysis</subject><subject>Methylmercury Compounds - metabolism</subject><subject>Naiad</subject><subject>National parks</subject><subject>Odonata</subject><subject>Odonata - anatomy & histology</subject><subject>Odonata - chemistry</subject><subject>Odonata - growth & development</subject><subject>Odonata - metabolism</subject><subject>Predators</subject><subject>Water Pollutants, Chemical - analysis</subject><subject>Water Pollutants, Chemical - metabolism</subject><subject>Water pollution</subject><issn>0730-7268</issn><issn>1552-8618</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2014</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><recordid>eNqF0l1rFDEUBuAgil1XwV-gAyLUi6n5nknvSmnrR7WgFi_DSSazpM4kazJDu_--Kbu2IIg3yUWec07CG4ReEnxAMKbv3WQPqBTsEVoQIWjdStI-RgvcMFw3VLZ76FnOVxgTqZR6ivYobxUmhC2Q_-KSndOmMj6CtfM4DzD5GCofqi7BKoZ-8C5X-xddDDDBYXUUfI7rySV4d1id3MDow7Yi9tXge1flCValAkJXmdhtquRW5Tg_R096GLJ7sduX6PL05Mfxh_r84uzj8dF5bQXHrDZYWWiYs9b0opOiocbwrpFGYS6McuC4ga6ljikiGOOWGNNwJQgxIDFQtkT7277rFH_PLk969Nm6YYDg4pw1kZwyIgUm_6dCypaqshb65i96FecUykOKEpK1jHP50NCmmHNyvV4nP0LaaIL1XVK6JKXvkir01a7hbEbX3cM_0RTwdgcgWxj6BMH6_ODaRkheOi1RvXXXfnCbfw7UxewG77zPk7u595B-admwRuifX890i799Ep_VqVbFv976HqKGVSp3uPxOMeHlOzHVUMFuAQUlwLM</recordid><startdate>201409</startdate><enddate>201409</enddate><creator>Buckland‐Nicks, Amy</creator><creator>Hillier, Kirk Neil</creator><creator>Avery, Trevor S</creator><creator>O'Driscoll, Nelson J</creator><general>Pergamon</general><general>Blackwell Publishing Ltd</general><general>SETAC</general><scope>FBQ</scope><scope>BSCLL</scope><scope>IQODW</scope><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>7QO</scope><scope>7SN</scope><scope>7SS</scope><scope>7ST</scope><scope>7T7</scope><scope>7TK</scope><scope>7U7</scope><scope>8FD</scope><scope>C1K</scope><scope>FR3</scope><scope>K9.</scope><scope>P64</scope><scope>RC3</scope><scope>SOI</scope><scope>7TV</scope><scope>F1W</scope><scope>H95</scope><scope>L.G</scope><scope>7SU</scope><scope>KR7</scope></search><sort><creationdate>201409</creationdate><title>Mercury bioaccumulation in dragonflies (Odonata: Anisoptera): Examination of life stages and body regions</title><author>Buckland‐Nicks, Amy ; Hillier, Kirk Neil ; Avery, Trevor S ; O'Driscoll, Nelson J</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c5403-b09ca73eccbf5d6572bb4d76b9045b9eae4bad82e3915334c1bb749511ba60a23</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2014</creationdate><topic>Adults</topic><topic>Aeshnidae</topic><topic>Animal, plant and microbial ecology</topic><topic>Animals</topic><topic>Anisoptera</topic><topic>Applied ecology</topic><topic>Aquatic insects</topic><topic>Bioaccumulation</topic><topic>Biological and medical sciences</topic><topic>Biological magnification</topic><topic>body regions</topic><topic>Canada</topic><topic>Concentration (composition)</topic><topic>Detoxification</topic><topic>Drag (hindrance)</topic><topic>Dragonflies</topic><topic>Drying</topic><topic>Ecotoxicology, biological effects of pollution</topic><topic>Effects of pollution and side effects of pesticides on protozoa and invertebrates</topic><topic>Food Chain</topic><topic>Food chains</topic><topic>Food webs</topic><topic>Foods</topic><topic>Fundamental and applied biological sciences. Psychology</topic><topic>Gomphidae</topic><topic>Insects</topic><topic>integument</topic><topic>Invertebrates</topic><topic>lakes</topic><topic>Lakes - analysis</topic><topic>Libellulidae</topic><topic>Mercury</topic><topic>Mercury (metal)</topic><topic>Mercury - analysis</topic><topic>Mercury - metabolism</topic><topic>Methylmercury</topic><topic>methylmercury compounds</topic><topic>Methylmercury Compounds - analysis</topic><topic>Methylmercury Compounds - metabolism</topic><topic>Naiad</topic><topic>National parks</topic><topic>Odonata</topic><topic>Odonata - anatomy & histology</topic><topic>Odonata - chemistry</topic><topic>Odonata - growth & development</topic><topic>Odonata - metabolism</topic><topic>Predators</topic><topic>Water Pollutants, Chemical - analysis</topic><topic>Water Pollutants, Chemical - metabolism</topic><topic>Water pollution</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Buckland‐Nicks, Amy</creatorcontrib><creatorcontrib>Hillier, Kirk Neil</creatorcontrib><creatorcontrib>Avery, Trevor S</creatorcontrib><creatorcontrib>O'Driscoll, Nelson J</creatorcontrib><collection>AGRIS</collection><collection>Istex</collection><collection>Pascal-Francis</collection><collection>Medline</collection><collection>MEDLINE</collection><collection>MEDLINE (Ovid)</collection><collection>MEDLINE</collection><collection>MEDLINE</collection><collection>PubMed</collection><collection>CrossRef</collection><collection>Biotechnology Research Abstracts</collection><collection>Ecology Abstracts</collection><collection>Entomology Abstracts (Full archive)</collection><collection>Environment Abstracts</collection><collection>Industrial and Applied Microbiology Abstracts (Microbiology A)</collection><collection>Neurosciences Abstracts</collection><collection>Toxicology Abstracts</collection><collection>Technology Research Database</collection><collection>Environmental Sciences and Pollution Management</collection><collection>Engineering Research Database</collection><collection>ProQuest Health & Medical Complete (Alumni)</collection><collection>Biotechnology and BioEngineering Abstracts</collection><collection>Genetics Abstracts</collection><collection>Environment Abstracts</collection><collection>Pollution Abstracts</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>Environmental Engineering Abstracts</collection><collection>Civil Engineering Abstracts</collection><jtitle>Environmental toxicology and chemistry</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Buckland‐Nicks, Amy</au><au>Hillier, Kirk Neil</au><au>Avery, Trevor S</au><au>O'Driscoll, Nelson J</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Mercury bioaccumulation in dragonflies (Odonata: Anisoptera): Examination of life stages and body regions</atitle><jtitle>Environmental toxicology and chemistry</jtitle><addtitle>Environ Toxicol Chem</addtitle><date>2014-09</date><risdate>2014</risdate><volume>33</volume><issue>9</issue><spage>2047</spage><epage>2054</epage><pages>2047-2054</pages><issn>0730-7268</issn><eissn>1552-8618</eissn><coden>ETOCDK</coden><abstract>Dragonflies (Odonata: Anisoptera) are an important component of both aquatic and terrestrial food webs and are vectors for methylmercury (MeHg) biomagnification. Variations in mercury content with life stage and body regions may affect the relative transfer of mercury to aquatic or terrestrial food webs; however, there has been little research on this subject. Also, little is known about mercury bioaccumulation in different body regions of dragonflies. To address these knowledge gaps, dragonfly naiads, adults, and exuviae were collected at 2 lakes in Kejimkujik National Park, Nova Scotia, Canada, and mercury concentrations in different life stages and body regions were quantified. Mean whole body concentrations of MeHg were substantial in naiads (232 ± 112 ng g⁻¹ dry wt, n = 66), emerging adults (236 ± 50 ng g⁻¹ dry wt, n = 10), and mature adults (231 ± 74 ng g⁻¹ dry wt, n = 20). Mean MeHg concentrations in exuviae (5.6 ± 4.3 ng g⁻¹, n = 32) were 40‐fold lower than in naiads and adults. Emerging adults had 2‐fold to 2.5‐fold higher Hg(II) concentrations than naiads, mature adults, and exuviae. In body regions of both naiads and adults, some abdomens contained significantly higher concentrations of Hg(II) than heads or thoraces, and this trend was consistent across families. Across families, Aeshnidae had significantly higher concentrations of MeHg and total Hg than Gomphidae and Libellulidae, but not higher than Cordulidae. The Hg(II) concentrations were lower in Aeshnidae and Libellulidae than in Gomphidae and Cordulidae. Shedding of exuviae presents a possible mechanism for mercury detoxification, but mercury concentrations and burdens in exuviae are low in comparison with naiads and adults. Dragonfly adults retain a high potential for transferring substantial amounts of MeHg to their predators. Environ Toxicol Chem 2014; 33:2047–2054. © 2014 SETAC</abstract><cop>Pensacola, FL</cop><pub>Pergamon</pub><pmid>24890113</pmid><doi>10.1002/etc.2653</doi><tpages>8</tpages></addata></record> |
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| ispartof | Environmental toxicology and chemistry, 2014-09, Vol.33 (9), p.2047-2054 |
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| subjects | Adults Aeshnidae Animal, plant and microbial ecology Animals Anisoptera Applied ecology Aquatic insects Bioaccumulation Biological and medical sciences Biological magnification body regions Canada Concentration (composition) Detoxification Drag (hindrance) Dragonflies Drying Ecotoxicology, biological effects of pollution Effects of pollution and side effects of pesticides on protozoa and invertebrates Food Chain Food chains Food webs Foods Fundamental and applied biological sciences. Psychology Gomphidae Insects integument Invertebrates lakes Lakes - analysis Libellulidae Mercury Mercury (metal) Mercury - analysis Mercury - metabolism Methylmercury methylmercury compounds Methylmercury Compounds - analysis Methylmercury Compounds - metabolism Naiad National parks Odonata Odonata - anatomy & histology Odonata - chemistry Odonata - growth & development Odonata - metabolism Predators Water Pollutants, Chemical - analysis Water Pollutants, Chemical - metabolism Water pollution |
| title | Mercury bioaccumulation in dragonflies (Odonata: Anisoptera): Examination of life stages and body regions |
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