{"refrec":{"BRefID":238500,"RR":"<b>Bisi, T.L.; Lepoint, G.; Azevedo, A.D.; Dorneles, P.R.; Flache, L.; Das, K.; Malm, O.; Lailson-Brito, J.</b> (2012). Trophic relationships and mercury biomagnification in Brazilian tropical coastal food webs. <i>Ecol. Indic. 18</i>: 291-302. <a href=\"http://dx.doi.org/10.1016/j.ecolind.2011.11.015\" target=\"_blank\">dx.doi.org/10.1016/j.ecolind.2011.11.015</a>","BEntID":230187,"PublicFlag":1,"CheckedFlag":1,"wosflag":1,"vabbflag":1,"RefStringPartII":". <i>Ecol. Indic. 18</i>: 291-302. <a href=\"https://dx.doi.org/10.1016/j.ecolind.2011.11.015\" target=\"_blank\">https://dx.doi.org/10.1016/j.ecolind.2011.11.015</a>","DocTypID":8,"DocType":"Journal article","MarineFlag":1,"FreshFlag":0,"BrackishFlag":0,"TerrestrialFlag":0,"Authorstring":"Bisi, T.L.; Lepoint, G.; Azevedo, A.D.; Dorneles, P.R.; Flache, L.; Das, K.; Malm, O.; Lailson-Brito, J.","OrigTitleTranslFlag":0,"Authorstringtrunc":"Bisi, T.L. <i>et al.</i>","Englishabstract":"The present study investigated trophic relationships and mercury flow through food webs of three tropical coastal ecosystems: Guanabara, Sepetiba and Ilha Grande bays. The investigation was carried out through carbon and nitrogen stable isotopes (d<sup>13</sup>C, d<sup>15</sup>N) and total mercury (THg) determination in muscle from 35 species, including crustacean, cephalopod, fish and dolphin species. Detritivorous species showed the lowest average d<sup>15</sup>N values in all bays. These species were <sup>13</sup>C enriched in Sepetiba and Ilha Grande bays, suggesting the presence of <sup>13</sup>C enriched macroalgae in their diet. The highest mean d<sup>15</sup>N values were found in fish and benthic invertebrate feeders, as well as in species presenting demerso-pelagic feeding habit. The carbon and nitrogen isotopic findings showed different trophic relationship in food webs from Sepetiba, Guanabara and Ilha Grande bays. Guanabara Bay showed to be depleted in d<sup>15</sup>N compared to both Sepetiba and Ilha Grande bays. The latter finding suggests substantial contribution of atmospheric nitrogen fixation by cyanobacteria. A positive linear relationship was found between log THg concentrations and d<sup>15</sup>N values for Guanabara and Ilha Grande bays, but not for Sepetiba Bay. Our findings showed trophic magnification factors (TMF) above 1, demonstrating that THg is being biomagnified up the food chains in Rio de Janeiro bays.","AbstractOtherLang":null,"BibLvlCode":"AS","StandardTitle":"Trophic relationships and mercury biomagnification in Brazilian tropical coastal food webs","OrigTitleLangCode":"en","OrigTitleLangCodeExtended":"eng","OrigTitleLangID":15,"DateLastModified":{"date":"2024-12-10 01:33:17.368041","timezone_type":1,"timezone":"+01:00"},"UserAccessRight":null,"UserAccID":null,"AuthorKeywords":"Tropical ecosystems; Food web; Stable isotope; Heavy metal;Bioaccumulation; Guiana dolphin","OtherDescriptors":null,"Notes":null,"AnaPub":2012,"MonPub":null,"DateUpdate":"2015-10-29","DateCreate":"2014-05-18","SecASFANote":null,"ConfID":null,"PeerRev":1,"VlizCoreFlag":1,"WoScode":"WOS:000303284500034","VABBcode":null,"OpenAcc":0,"DOI":"10.1016/j.ecolind.2011.11.015"},"refs":null,"anarec":{"AnaID":238500,"PubliDate":2012,"Pagination":"291-302","XtraPublOfAnaID":null,"ISBN":null,"Volume":"18","Issue":null,"BRefMon":null,"BRefMonRR":null,"BRefXtra":null,"BRefXtraRR":null,"SerBRefID":45477,"SerRR":"Ecological Indicators. 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