气候变化领域集成服务门户(CCPortal): Ecological and biological factors associated to mercury accumulation in batoids (Chondrichthyes: Batoidea) from northeastern Brazil

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DOI	10.1016/j.marpolbul.2020.111761
	Ecological and biological factors associated to mercury accumulation in batoids (Chondrichthyes: Batoidea) from northeastern Brazil
	Moura V.L.; Rabelo J.N.; Bezerra M.F.; Silva G.B.D.; Faria V.V.; Rezende C.E.; Bastos W.R.; Lacerda L.D.D.
发表日期	2020
ISSN	0025326X
卷号	161
英文摘要	The present study aims to understand how ecological and biological factors affect the Hg levels in stingrays occurring in the Northeastern Brazilian coast. Total mercury (Hg), methylmercury (MeHg) and stable isotope (δ13C and δ15N) analyses were performed in five species. Hypanus americanus and Gymnura micrura showed the highest total Hg concentrations (300 and 176 ng.g−1, respectively). Hypanus guttatus exhibited a significant correlation between total Hg and size. Both species of the genus Hypanus presented the highest percentage of MeHg, around 100%, whereas the other species showed median percentages below 50%. The δ13C and δ15N signatures suggest that all studied species present the same foraging habitat but different trophic positions. Trophic position and animal size were the main factors influencing total Hg and MeHg concentrations in batoid species. The genus Hypanus, present in the Brazilian fish markets, showed concentrations above the accepted limits for human consumption. © 2020
英文关键词	Bioaccumulation; Hg; MeHg; Stable isotopes; Stingray
语种	英语
scopus关键词	Mercury (metal); Mercury compounds; Biological factors; Hg concentrations; Human consumption; Mercury accumulation; Northeastern Brazil; Stable isotopes; Total mercuries; Trophic position; Ecology; bioaccumulation; body size; concentration (composition); environmental factor; fish; mercury (element); methylmercury; stable isotope; trophic status; Brazil; Animalia; Batoidea; Chondrichthyes; Dasyatidae; Gymnura micrura
来源期刊	Marine Pollution Bulletin
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/148435
作者单位	Instituto de Ciências do Mar, Universidade Federal do Ceará, Fortaleza, CE, Brazil; Department of Biology, San Diego State University, San Diego, CA, United States; Universidade Federal Rural do Semiárido, Mossoró, RN, Brazil; Departamento de Biologia, Universidade Federal do Ceará, Fortaleza, CE, Brazil; Centro de Biociências e Biotecnologia, Universidade Estadual do Norte Fluminense Darcy Ribeiro, Campos dos Goytacazes, RJ, Brazil; Laboratório de Biogeoquímica Ambiental WCP, Universidade Federal de Rondônia, Porto Velho, RO, Brazil
推荐引用方式 GB/T 7714	Moura V.L.,Rabelo J.N.,Bezerra M.F.,et al. Ecological and biological factors associated to mercury accumulation in batoids (Chondrichthyes: Batoidea) from northeastern Brazil[J],2020,161.
APA	Moura V.L..,Rabelo J.N..,Bezerra M.F..,Silva G.B.D..,Faria V.V..,...&Lacerda L.D.D..(2020).Ecological and biological factors associated to mercury accumulation in batoids (Chondrichthyes: Batoidea) from northeastern Brazil.Marine Pollution Bulletin,161.
MLA	Moura V.L.,et al."Ecological and biological factors associated to mercury accumulation in batoids (Chondrichthyes: Batoidea) from northeastern Brazil".Marine Pollution Bulletin 161(2020).