Mercury concentrations, biomagnification and isotopic discrimination factors in two seabird species from the Humboldt Current ecosystem
Assessing mercury (Hg) biomagnification requires the description of prey-predator relationships, for each species and ecosystem, usually based on carbon and nitrogen isotope analyses. Here, we analyzed two seabirds from the Humboldt Current ecosystem, the Guanay cormorant (Phalacrocorax bougainvilli...
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| Veröffentlicht in: | Marine pollution bulletin 2022-04, Vol.177, p.113481-113481, Article 113481 |
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| creator | Le Croizier, Gaël Point, David Renedo, Marina Munaron, Jean-Marie Espinoza, Pepe Amezcua-Martinez, Felipe Lanco Bertrand, Sophie Lorrain, Anne |
| description | Assessing mercury (Hg) biomagnification requires the description of prey-predator relationships, for each species and ecosystem, usually based on carbon and nitrogen isotope analyses. Here, we analyzed two seabirds from the Humboldt Current ecosystem, the Guanay cormorant (Phalacrocorax bougainvillii) and the Peruvian booby (Sula variegata), as well as their main prey, the Peruvian anchovy (Engraulis ringens). We reported Hg concentrations, Hg biomagnification (BMF) and isotopic discrimination factors (Δ13C and Δ15N) in seabird whole blood. BMFs and Δ13C in our study (on wild birds where diet was not controlled) were similar to other piscivorous seabirds previously studied in captive settings, but Δ15N were lower than most captive experiments. We observed lower Hg concentrations in Humboldt seabirds compared to other oligotrophic ecosystems, possibly due to Hg biodilution in the high biomass of the first trophic levels. This work calls for a better characterization of Hg trophic dynamics in productive upwelling ecosystems.
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•Hg levels, biomagnification and isotopic discrimination factors in Humboldt seabirds•BMFs, Δ13C and Δ15N differed from other seabirds previously studied.•Lower Hg concentrations in Humboldt seabirds compared to other regions•Potential Hg biodilution in the high biomass of the first trophic levels |
| doi_str_mv | 10.1016/j.marpolbul.2022.113481 |
| format | Article |
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[Display omitted]
•Hg levels, biomagnification and isotopic discrimination factors in Humboldt seabirds•BMFs, Δ13C and Δ15N differed from other seabirds previously studied.•Lower Hg concentrations in Humboldt seabirds compared to other regions•Potential Hg biodilution in the high biomass of the first trophic levels</description><identifier>ISSN: 0025-326X</identifier><identifier>EISSN: 1879-3363</identifier><identifier>DOI: 10.1016/j.marpolbul.2022.113481</identifier><identifier>PMID: 35245770</identifier><language>eng</language><publisher>England: Elsevier Ltd</publisher><subject>Anchovy ; Aquatic birds ; Bioaccumulation ; Biodiversity and Ecology ; Biological magnification ; Booby ; Carbon and nitrogen stable isotopes ; Cormorant ; Discrimination ; Ecosystems ; Environmental Sciences ; Food chains ; Global Changes ; Mercury ; Mercury (metal) ; Nitrogen isotopes ; Ocean circulation ; Predators ; Prey ; Seabirds ; Trophic discrimination factors ; Trophic levels ; Upwelling</subject><ispartof>Marine pollution bulletin, 2022-04, Vol.177, p.113481-113481, Article 113481</ispartof><rights>2022 Elsevier Ltd</rights><rights>Copyright © 2022 Elsevier Ltd. All rights reserved.</rights><rights>Copyright Elsevier BV Apr 2022</rights><rights>Distributed under a Creative Commons Attribution 4.0 International License</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c433t-d58717a36c467777fb937f3211ab852b6280f89c7d015fcb982821650870018e3</citedby><cites>FETCH-LOGICAL-c433t-d58717a36c467777fb937f3211ab852b6280f89c7d015fcb982821650870018e3</cites><orcidid>0000-0002-1289-2072 ; 0000-0002-5218-7781 ; 0000-0003-1976-3799</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://www.sciencedirect.com/science/article/pii/S0025326X22001631$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>230,314,776,780,881,3537,27901,27902,65534</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/35245770$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink><backlink>$$Uhttps://hal.umontpellier.fr/hal-03622225$$DView record in HAL$$Hfree_for_read</backlink></links><search><creatorcontrib>Le Croizier, Gaël</creatorcontrib><creatorcontrib>Point, David</creatorcontrib><creatorcontrib>Renedo, Marina</creatorcontrib><creatorcontrib>Munaron, Jean-Marie</creatorcontrib><creatorcontrib>Espinoza, Pepe</creatorcontrib><creatorcontrib>Amezcua-Martinez, Felipe</creatorcontrib><creatorcontrib>Lanco Bertrand, Sophie</creatorcontrib><creatorcontrib>Lorrain, Anne</creatorcontrib><title>Mercury concentrations, biomagnification and isotopic discrimination factors in two seabird species from the Humboldt Current ecosystem</title><title>Marine pollution bulletin</title><addtitle>Mar Pollut Bull</addtitle><description>Assessing mercury (Hg) biomagnification requires the description of prey-predator relationships, for each species and ecosystem, usually based on carbon and nitrogen isotope analyses. Here, we analyzed two seabirds from the Humboldt Current ecosystem, the Guanay cormorant (Phalacrocorax bougainvillii) and the Peruvian booby (Sula variegata), as well as their main prey, the Peruvian anchovy (Engraulis ringens). We reported Hg concentrations, Hg biomagnification (BMF) and isotopic discrimination factors (Δ13C and Δ15N) in seabird whole blood. BMFs and Δ13C in our study (on wild birds where diet was not controlled) were similar to other piscivorous seabirds previously studied in captive settings, but Δ15N were lower than most captive experiments. We observed lower Hg concentrations in Humboldt seabirds compared to other oligotrophic ecosystems, possibly due to Hg biodilution in the high biomass of the first trophic levels. This work calls for a better characterization of Hg trophic dynamics in productive upwelling ecosystems.
[Display omitted]
•Hg levels, biomagnification and isotopic discrimination factors in Humboldt seabirds•BMFs, Δ13C and Δ15N differed from other seabirds previously studied.•Lower Hg concentrations in Humboldt seabirds compared to other regions•Potential Hg biodilution in the high biomass of the first trophic levels</description><subject>Anchovy</subject><subject>Aquatic birds</subject><subject>Bioaccumulation</subject><subject>Biodiversity and Ecology</subject><subject>Biological magnification</subject><subject>Booby</subject><subject>Carbon and nitrogen stable isotopes</subject><subject>Cormorant</subject><subject>Discrimination</subject><subject>Ecosystems</subject><subject>Environmental Sciences</subject><subject>Food chains</subject><subject>Global Changes</subject><subject>Mercury</subject><subject>Mercury (metal)</subject><subject>Nitrogen isotopes</subject><subject>Ocean circulation</subject><subject>Predators</subject><subject>Prey</subject><subject>Seabirds</subject><subject>Trophic discrimination factors</subject><subject>Trophic levels</subject><subject>Upwelling</subject><issn>0025-326X</issn><issn>1879-3363</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2022</creationdate><recordtype>article</recordtype><recordid>eNqFkctu1DAUhi0EotPCK4AlNlQigy_xJcvRqGWQpuoGJHaW7TjUoyQOtlM0T8Br4yFlFmw4G0vH37n85wfgLUZrjDD_eFgPOk6hN3O_JoiQNca0lvgZWGEpmopSTp-DFUKEVZTwbxfgMqUDQkgQgV-CC8pIzYRAK_DrzkU7xyO0YbRuzFFnH8b0ARofBv199J23f1JQjy30KeQweQtbn2z0gx-Xv07bHGKCfoT5Z4DJaeNjC9PkrHcJdjEMMD84uJsHE_o2w-0cY5kGnQ3pmLIbXoEXne6Te_30XoGvtzdftrtqf__p83azr2xNaa5aJgUWmnJbc1GiMw0VHSUYayMZMZxI1MnGihZh1lnTSCIJ5gxJgRCWjl6B66Xvg-7VVCToeFRBe7Xb7NUphygnJdgjLuz7hZ1i-DG7lNVQZLu-16MLc1KEU45rJmld0Hf_oIcwx7EoKRSjTNas4YUSC2VjSCm67rwBRurkqzqos6_q5KtafC2Vb576z2Zw7bnur5EF2CyAK8d79C6qVE5fLG19dDarNvj_DvkNwOO43g</recordid><startdate>20220401</startdate><enddate>20220401</enddate><creator>Le Croizier, Gaël</creator><creator>Point, David</creator><creator>Renedo, Marina</creator><creator>Munaron, Jean-Marie</creator><creator>Espinoza, Pepe</creator><creator>Amezcua-Martinez, Felipe</creator><creator>Lanco Bertrand, Sophie</creator><creator>Lorrain, Anne</creator><general>Elsevier Ltd</general><general>Elsevier BV</general><general>Elsevier</general><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7ST</scope><scope>7T7</scope><scope>7TN</scope><scope>7TV</scope><scope>7U7</scope><scope>8FD</scope><scope>C1K</scope><scope>F1W</scope><scope>FR3</scope><scope>M7N</scope><scope>P64</scope><scope>SOI</scope><scope>7X8</scope><scope>1XC</scope><orcidid>https://orcid.org/0000-0002-1289-2072</orcidid><orcidid>https://orcid.org/0000-0002-5218-7781</orcidid><orcidid>https://orcid.org/0000-0003-1976-3799</orcidid></search><sort><creationdate>20220401</creationdate><title>Mercury concentrations, biomagnification and isotopic discrimination factors in two seabird species from the Humboldt Current ecosystem</title><author>Le Croizier, Gaël ; Point, David ; Renedo, Marina ; Munaron, Jean-Marie ; Espinoza, Pepe ; Amezcua-Martinez, Felipe ; Lanco Bertrand, Sophie ; Lorrain, Anne</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c433t-d58717a36c467777fb937f3211ab852b6280f89c7d015fcb982821650870018e3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2022</creationdate><topic>Anchovy</topic><topic>Aquatic birds</topic><topic>Bioaccumulation</topic><topic>Biodiversity and Ecology</topic><topic>Biological magnification</topic><topic>Booby</topic><topic>Carbon and nitrogen stable isotopes</topic><topic>Cormorant</topic><topic>Discrimination</topic><topic>Ecosystems</topic><topic>Environmental Sciences</topic><topic>Food chains</topic><topic>Global Changes</topic><topic>Mercury</topic><topic>Mercury (metal)</topic><topic>Nitrogen isotopes</topic><topic>Ocean circulation</topic><topic>Predators</topic><topic>Prey</topic><topic>Seabirds</topic><topic>Trophic discrimination factors</topic><topic>Trophic levels</topic><topic>Upwelling</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Le Croizier, Gaël</creatorcontrib><creatorcontrib>Point, David</creatorcontrib><creatorcontrib>Renedo, Marina</creatorcontrib><creatorcontrib>Munaron, Jean-Marie</creatorcontrib><creatorcontrib>Espinoza, Pepe</creatorcontrib><creatorcontrib>Amezcua-Martinez, Felipe</creatorcontrib><creatorcontrib>Lanco Bertrand, Sophie</creatorcontrib><creatorcontrib>Lorrain, Anne</creatorcontrib><collection>PubMed</collection><collection>CrossRef</collection><collection>Environment Abstracts</collection><collection>Industrial and Applied Microbiology Abstracts (Microbiology A)</collection><collection>Oceanic Abstracts</collection><collection>Pollution Abstracts</collection><collection>Toxicology Abstracts</collection><collection>Technology Research Database</collection><collection>Environmental Sciences and Pollution Management</collection><collection>ASFA: Aquatic Sciences and Fisheries Abstracts</collection><collection>Engineering Research Database</collection><collection>Algology Mycology and Protozoology Abstracts (Microbiology C)</collection><collection>Biotechnology and BioEngineering Abstracts</collection><collection>Environment Abstracts</collection><collection>MEDLINE - Academic</collection><collection>Hyper Article en Ligne (HAL)</collection><jtitle>Marine pollution bulletin</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Le Croizier, Gaël</au><au>Point, David</au><au>Renedo, Marina</au><au>Munaron, Jean-Marie</au><au>Espinoza, Pepe</au><au>Amezcua-Martinez, Felipe</au><au>Lanco Bertrand, Sophie</au><au>Lorrain, Anne</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Mercury concentrations, biomagnification and isotopic discrimination factors in two seabird species from the Humboldt Current ecosystem</atitle><jtitle>Marine pollution bulletin</jtitle><addtitle>Mar Pollut Bull</addtitle><date>2022-04-01</date><risdate>2022</risdate><volume>177</volume><spage>113481</spage><epage>113481</epage><pages>113481-113481</pages><artnum>113481</artnum><issn>0025-326X</issn><eissn>1879-3363</eissn><abstract>Assessing mercury (Hg) biomagnification requires the description of prey-predator relationships, for each species and ecosystem, usually based on carbon and nitrogen isotope analyses. Here, we analyzed two seabirds from the Humboldt Current ecosystem, the Guanay cormorant (Phalacrocorax bougainvillii) and the Peruvian booby (Sula variegata), as well as their main prey, the Peruvian anchovy (Engraulis ringens). We reported Hg concentrations, Hg biomagnification (BMF) and isotopic discrimination factors (Δ13C and Δ15N) in seabird whole blood. BMFs and Δ13C in our study (on wild birds where diet was not controlled) were similar to other piscivorous seabirds previously studied in captive settings, but Δ15N were lower than most captive experiments. We observed lower Hg concentrations in Humboldt seabirds compared to other oligotrophic ecosystems, possibly due to Hg biodilution in the high biomass of the first trophic levels. This work calls for a better characterization of Hg trophic dynamics in productive upwelling ecosystems.
[Display omitted]
•Hg levels, biomagnification and isotopic discrimination factors in Humboldt seabirds•BMFs, Δ13C and Δ15N differed from other seabirds previously studied.•Lower Hg concentrations in Humboldt seabirds compared to other regions•Potential Hg biodilution in the high biomass of the first trophic levels</abstract><cop>England</cop><pub>Elsevier Ltd</pub><pmid>35245770</pmid><doi>10.1016/j.marpolbul.2022.113481</doi><tpages>1</tpages><orcidid>https://orcid.org/0000-0002-1289-2072</orcidid><orcidid>https://orcid.org/0000-0002-5218-7781</orcidid><orcidid>https://orcid.org/0000-0003-1976-3799</orcidid></addata></record> |
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| ispartof | Marine pollution bulletin, 2022-04, Vol.177, p.113481-113481, Article 113481 |
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| source | Elsevier ScienceDirect Journals |
| subjects | Anchovy Aquatic birds Bioaccumulation Biodiversity and Ecology Biological magnification Booby Carbon and nitrogen stable isotopes Cormorant Discrimination Ecosystems Environmental Sciences Food chains Global Changes Mercury Mercury (metal) Nitrogen isotopes Ocean circulation Predators Prey Seabirds Trophic discrimination factors Trophic levels Upwelling |
| title | Mercury concentrations, biomagnification and isotopic discrimination factors in two seabird species from the Humboldt Current ecosystem |
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