First approaches to the depuration process of trace metals in the burrowing crab Neohelice granulata from a temperate we
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RESEARCH ARTICLE
First approaches to the depuration process of trace metals in the burrowing crab Neohelice granulata from a temperate wetland in South America: Bahía Blanca estuary, Argentina Pía Simonetti 1
&
Daniela M. Truchet 1,2 & Natalia S. Buzzi 1,2 & Jorge E. Marcovecchio 1,3,4
Received: 10 October 2019 / Accepted: 16 June 2020 # Springer-Verlag GmbH Germany, part of Springer Nature 2020
Abstract Trace metal contamination is among the major concerns of stakeholders due to its potential adverse effects on biota and humans, even at low concentrations. Few studies have recently focused on the ability of organisms to depurate trace metals from different tissues. Therefore, we carried out this study to evaluate the bioconcentration of trace metals (Cd, Zn, Pb, Ni, Mn, Fe, Cr, Cu) and the depuration process of these pollutants in two tissues (soft tissue and carapace) in an estuarine benthic crab model, Neohelice granulata. The results indicate that Cu and Zn were the highest bioconcentrated metals in crab tissues, while other metals, such as Pb and Cr, were found in sediments but were not bioconcentrated. On the other hand, Cd was found in crabs but not in sediments. The depuration indicates a total decline in Ni and a significant decrease in Cu and Fe in the soft tissues after the experiment. However, the concentration of the trace metals in the carapace before and after the depuration did not show any significant variation except in the Mn, in which the levels decreased significantly at the end of the depuration. Thus, we recommend continuing to explore metal detoxification in bioindicator species, such as N. granulata, in order to understand the efficiency of the mechanisms of depuration of trace metals. Keywords Depuration process . BCF . Trace metals . Biomonitoring . Estuarine and coastal pollution
Introduction Several coastal areas are subjected to an increase in human activities, such as industrial development with demographic demands and the urbanization process, that might act as human-induced stressors to wetlands (Verdonschot et al. Responsible Editor: Philippe Garrigues * Pía Simonetti [email protected] 1
Área de Oceanografía Química, CCT-CONICET, Instituto Argentino de Oceanografía (IADO), Camino La Carrindanga, km 7.5, Edificio E1, B8000FWB Bahía Blanca, Pcia. de Bs. As., Argentina
2
Departamento de Biología, Bioquímica y Farmacia, Universidad Nacional del Sur (UNS), San Juan 670, B8000ICN Bahía Blanca, Pcia. de Bs. As., Argentina
3
Universidad Tecnológica Nacional (UTN-FRBB), 11 de abril 461, B8000LMI Bahía Blanca, Pcia. de Bs. As., Argentina
4
Universidad FASTA, Gascón 3145, B7600FNK Mar del Plata, Pcia. de Bs. As., Argentina
2013). In the case of trace metals, these pressures come from different sources, e.g., sediment erosion, wastewater discharges, agriculture and changes in land use, and industrial and port activities, among others. Therefore, they remain as a concern due to their hazardous effects at low concentrations and their persistence in the environment (Marcovecchi
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