Integrating multiple lines of evidence of sediment quality in a tropical bay (Guanabara Bay, Brazil)

Author(s)

de Campos, Bruno Galvao ^[1] ; Moreira, Lucas Buruaem ^[1] ; Eufrasio Pauly, Guacira de Figueiredo ^[1] ; Feitosa Cruz, Ana Carolina ^[1] ; Monte, Christiane do Nascimento ^{[2, 3]} ; Dias da Silva, Lilian Irene ^[4] ; de Castro Rodrigues, Ana Paula ^{[2, 5]} ; Machado, Wilson ^[2] ; de Souza Abessa, Denis Moledo ^[1]

Affiliation

^[1] Sao Paulo State Univ UNFSP, Praca Infante Dom Henrique S-N, BR-11330900 Sao Paulo - Brazil

^[2] Fluminense Fed Univ UFF, Program Geochem, Dept Geochem, BR-24020141 Niteroi, RJ - Brazil

^[3] West Para State Fed Univ UFOPA, Engn & Geosci Inst, BR-68040255 Santarem, Para - Brazil

^[4] Ctr Mineral Technol CETEM, Mineral Anal Coordinat, Av Pedro Calmon 900, Cidade Univ, BR-21941908 Rio De Janeiro, RJ - Brazil

^[5] Rio de Janeiro Fed Univ UFRJ, Hlth Sci Ctr, Av Carlos Chagas Filho 373, Cidade Univ, BR-24020141 Rio De Janeiro, RJ - Brazil

• Document type: Journal article
• Source: Marine Pollution Bulletin; v. 146, p. 925-934, SEP 2019.
• Web of Science Citations: 0

Abstract

The present study evaluated the ecological risk of metal contamination in sediments of Guanabara Bay (GB) by combining multiple lines of evidence (LOEs). Chemical analysis and a set of whole-sediment toxicity assays were conducted with Tiburonella viscana, Kalliapseudes schubartii, Anomalocardia flexuosa, and Nitocra sp. Results were integrated by multivariate analysis and qualitative methods. Additionally, a whole-sediment Toxicity Identification Evaluation technique (TIE) was applied to identify the chemical groups responsible for the effects. Sediments from harbor and industrial areas exhibited toxicity linked to moderate to high concentrations of Zn, Pb, Cu and Cr. The TIE technique confirmed such effects, but it also indicates the contribution of ammonia and organic compounds to the observed toxicity. Our results demonstrate that the combination of multiple LOEs improves the effectiveness of environmental risk assessment of chemical stressors and management of coastal ecosystems in tropical regions. (AU)

• FAPESP's process: 13/15482-0 - Establishment of site-specific sediment quality guidelines for the Coast of São Paulo state: scientific basis for the creation of a national legislation
• Grantee: Lucas Buruaem Moreira
• Support type: Scholarships in Brazil - Post-Doctorate
• FAPESP's process: 15/13143-0 - Ecotoxicological analysis of the Guanabara Bay (RJ) sediment through Bioaccumulation Test and Toxicity Evaluation Identification (TIE) method
• Grantee: Bruno Galvão de Campos
• Support type: Scholarships in Brazil - Master