Advanced search
Start date
Betweenand
Related content
(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Detection of rare-earth elements using fiddler crabs Leptuca leptodactyla (Crustacea: Ocypodidae) as bioindicators in mangroves on the coast of Sao Paulo, Brazil

Full text
Author(s):
Lavezzo, Bruna [1] ; Kinoshita, Angela [2, 1] ; Figueiredo, Ana Maria G. [3] ; Pinheiro, Mayara Maezano Faita [2] ; Santana, William [1]
Total Authors: 5
Affiliation:
[1] UNISAGRADO, Ctr Univ Sagrado Coracao, Lab Sistemat Zool, Proreitoria Pesquisa & Posgrad, Bauru, SP - Brazil
[2] Univ Western Sao Paulo, UNOESTE, Program Environm & Reg Dev, Presidente Prudente, SP - Brazil
[3] IPEN CNEN, Inst Pesquisas Energet & Nucl, Sao Paulo - Brazil
Total Affiliations: 3
Document type: Journal article
Source: Science of The Total Environment; v. 738, OCT 10 2020.
Web of Science Citations: 0
Abstract

Rare-earth elements have gained significant attention as they are currently widely used in high tech, chemical, and pharmaceutical industries. Here we used the fiddler crabs Leptuca leptodactyla as bioindicators to verify the presence of rare-earth elements in two mangrove areas of the Ubatuba, northern littoral of Sao Paulo state, Brazil. The specimens were collected in the mangrove areas of the Tavares River and Quiririm-Puruba river system, separated by season (dry and rainy). A total of 243 individuals were collected and analyzed. For determination and quantification of the elements we used the instrumental neutron activation analysis (INAA) technique. In both the dry and rainy season, the elements La, Ce, Sm, Eu, Tb, Yb and Sc were detected in samples of both mangroves, with La and Ce presenting higher concentrations. Samples from Tavares River mangrove had higher concentration levels of rare-earth elements than those of the Quiririm-Puruba river system. That is probably due to the central geographic position of the Tavares River in Ubatuba, which crosses a large portion of the city and receives a great amount of sewage. On the other hand, the Quiririm-Puruba river system has less anthropogenic inputs, thus, it receives much fewer rare-earth elements when compared to the Tavares River. (C) 2020 Elsevier B.V. All rights reserved. (AU)

FAPESP's process: 13/01201-0 - Biodiversity and endemic patterns of Majoidea (Crustacea, Decapoda, Brachyura) in Brazil
Grantee:William Ricardo Amancio Santana
Support Opportunities: BIOTA-FAPESP Program - Regular Research Grants