Article (Scientific journals)
Total tin (TSn) biomagnification: Evaluating organotin trophic flow and dispersion using hepatic TSn concentrations and stable isotope (C, N) data of nektonic organisms from Brazil
Dorneles, Paulo Renato; Schilithz, Priscila; de C. Paiva, Thais et al.
2020In Marine Environmental Research, 161, p. 105063
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Keywords :
dolphins; fish; trophic magnification; persistent bio accumulative toxicants; Southwest Atlantic Ocean; anti-fouling agents
Abstract :
[en] A previous investigation of our research team has demonstrated the suitability of using hepatic total tin (ΣSn) concentrations for evaluating dolphin exposure to organotins (OTs). The present study develops the previous technique into three different approaches that comprise data: (1) on hepatic ΣSn concentrations of 121 Guiana dolphins (Sotalia guianensis) from five different coastal areas (CAs): (2) on ΣSn, δ13C and δ15N for 40 dolphins from Rio de Janeiro state (RJ), including ten different delphinid species; as well as (3) on hepatic ΣSn concentrations and δ15N values on 31 individuals from five different fish species from Sepetiba Bay (SB, Rio de Janeiro-RJ, Brazil). Hepatic ΣSn concentrations of Guiana dolphins from Guanabara Bay (GB, RJ) were significantly higher than those found in other four CAs from S and SE Brazilian regions. Significant positive correlations were found between ΣSn concentrations and δ13C data in delphinid species, demonstrating a coast-ocean gradient in dolphin exposure to OTs in RJ state. Significant and positive correlations were observed between ΣSn concentrations and both δ15N and Trophic Position (TP) values of fish, as well as high values were found for Trophic Magnification Factor (TMF = 3.03) and Trophic Magnification Slope (TMS = 0.14), demonstrating OT biomagnification in SB ichthyofauna.
Research center :
FOCUS - Freshwater and OCeanic science Unit of reSearch - ULiège
Disciplines :
Aquatic sciences & oceanology
Environmental sciences & ecology
Author, co-author :
Dorneles, Paulo Renato ;  Université de Liège - ULiège > Département de Biologie, Ecologie et Evolution > Océanographie biologique
Schilithz, Priscila
de C. Paiva, Thais
Flach, Leonardo
Barbosa, Lupéricio
Domit, Camila
Cremer, Marta
Azevedo-Silva, Claudio
Azevedo, Alexandre
Malm, Olaf
Lepoint, Gilles  ;  Université de Liège - ULiège > Département de Biologie, Ecologie et Evolution > Océanographie biologique
Bisi, Tatiana
Das, Krishna  ;  Université de Liège - ULiège > Département de Biologie, Ecologie et Evolution > Océanographie biologique
Lailson-Brito, José
More authors (4 more) Less
Language :
English
Title :
Total tin (TSn) biomagnification: Evaluating organotin trophic flow and dispersion using hepatic TSn concentrations and stable isotope (C, N) data of nektonic organisms from Brazil
Publication date :
2020
Journal title :
Marine Environmental Research
ISSN :
0141-1136
Publisher :
Elsevier, Netherlands
Volume :
161
Pages :
105063
Peer reviewed :
Peer Reviewed verified by ORBi
Funders :
CNPq - Conselho Nacional de Desenvolvimento Científico e Tecnológico [BR]
CAPES - Coordenação de Aperfeicoamento de Pessoal de Nível Superior [BR]
WBI - Wallonie-Bruxelles International [BE]
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since 08 September 2020

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