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| one publication added to basket [337640] |
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, P.R.; Schilithz, P.F.; Paiva, T.d.C.; Flach, L.; Barbosa, L.A.; Domit, C.; Cremer, M.J.; Azevedo-Silva, C.E.; Azevedo, A.F.; Malm, O.; Lepoint, G.; Bisi, T.L.; Das, K.; Lailson-Brito, J. (2020). 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. Mar. Environ. Res. 161: 105063. https://hdl.handle.net/10.1016/j.marenvres.2020.105063
In: Marine Environmental Research. Applied Science Publishers: Barking. ISSN 0141-1136; e-ISSN 1879-0291, meer
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| Trefwoorden |
Delphinidae Gray, 1821 [WoRMS]; Pisces [WoRMS]
Marien/Kust |
| Author keywords |
Dolphins; Fish; Trophic magnification; Persistent bioaccumulative toxicants; Southwest Atlantic Ocean; Antifouling agents |
| Auteurs | | Top |
- Dorneles, P.R.
- Schilithz, P.F.
- Paiva, T.d.C.
- Flach, L.
- Barbosa, L.A.
|
- Domit, C.
- Cremer, M.J.
- Azevedo-Silva, C.E.
- Azevedo, A.F.
- Malm, O.
|
- Lepoint, G.
- Bisi, T.L.
- Das, K.
- Lailson-Brito, J.
|
| Abstract |
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. |
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