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Environmental problems - Chemical approaches
RESEARCH ARTICLE

Assessment of trace element content throughout the white shrimp (Litopenaeus vannamei) farming cycle

Wladiana O. Matos https://orcid.org/0000-0002-7514-6034 A , Francisco L. F. da Silva https://orcid.org/0000-0003-3519-3191 A B , Savarin Sinaviwat https://orcid.org/0000-0003-2452-686X C , Andrea Raab https://orcid.org/0000-0003-2058-0105 D , Eva M. Krupp C , Gisele S. Lopes https://orcid.org/0000-0002-9495-1207 A , Ana R. A. Nogueira https://orcid.org/0000-0003-3648-2956 E and Joerg Feldmann https://orcid.org/0000-0002-0524-8254 D *
+ Author Affiliations
- Author Affiliations

A Laboratório de Estudos em Química Aplicada (LEQA), Departamento de Química Analítica e Físico-Química, Universidade Federal do Ceará, Campus do Pici, 60455-760, Fortaleza-CE, Brazil.

B Faculdade de Educação de Crateús (FAEC), Universidade Estadual do Ceará, Rua Dr. José Sabóia Livreiro, 1480, Altamira, Crateús, Ceará, Brazil.

C Trace Element Speciation Laboratory, Department of Chemistry, Meston Walk, University of Aberdeen, Aberdeen AB24 3UE, Scotland, UK.

D TESLA – Analytical Chemistry, Institute of Chemistry, University of Graz, Universitätsplatz 1, 8010 Graz, Austria.

E EMBRAPA Pecuária Sudeste, Rodovia Washington Luiz, Km 234, P.O. Box 339, 13560-970, São Carlos-SP, Brazil.

* Correspondence to: joerg.feldmann@uni-graz.at

Handling Editor: Jamie Lead

Environmental Chemistry 20(2) 44-54 https://doi.org/10.1071/EN22098
Submitted: 22 August 2022  Accepted: 7 February 2023   Published: 4 May 2023

© 2023 The Author(s) (or their employer(s)). Published by CSIRO Publishing.

Environmental context. Intensive aquaculture is the main source of fisheries products. Thus, investigating the food safety of these products and the environmental impacts of the farms on mangroves is necessary. A shrimp productive cycle was evaluated with a focus on trace element accumulation in shrimps and effluent. The results revealed secure levels of elements in the final product; however, the effluent produced in farms is an important source of contamination to mangrove environment.

Rationale. Aquaculture systems have increased in the last years due to the high demand for seafood consumption, this could impact the environment and subject fisheries to accumulation of toxic elements. To understand some parameters of food safety and environmental impact, the present study evaluated the concentration of trace elements (Al, As, Cd, Co, Cr, Cu, Mn, Mo, Pb, Se, V and Zn) throughout the production cycle of shrimp.

Methodology. About 50 shrimps per cycle were collected in a shrimp farm in Brazil and their trace element contents were determined by inductively coupled plasma–tandem mass spectrometry (ICP-MS/MS) and microwave-induced plasma–optical emission spectroscopy (MIP-OES).

Results. At their final lifecycle stage, shrimp samples present a content (mg g−1) of elements following the trend: Cu (102 ± 12) > Al (20.06 ± 4.24) > Zn (14.82 ± 2.46) > Mn (6.24 ± 0.94) > As (2.65 ± 0.42) > Se (0.932 ± 0.140) > Co (0.380 ± 0.05) > Mo (0.254 ± 0.03) > V (0.204 ± 0.02).

Discussion. The content of Cd and Pb are in allowance with Brazil and USA legislation for crustaceans, however, the content of As is 3–4-fold higher than that allowed by guidelines in all stages of the growth of the shrimp. The final effluent of the shrimp’s pond into the mangroves shows a high mass fraction of Zn and Mn that could be a source of contamination. Some correlations between some elements in the shrimp samples were found, such as As–Se, Se–Co and Se–V. This study was a scoping experiment to study the content of trace elements throughout the farming cycle of shrimps, encouraging the researcher to undergo a wide survey to evaluate the environmental impact of aquaculture shrimp farming.

Keywords: aquaculture, bioaccumulation, Litopenaeus vannamei, mangrove, shrimp, shrimp farm, trace elements.


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