Version 1
: Received: 7 February 2024 / Approved: 7 February 2024 / Online: 7 February 2024 (08:34:58 CET)
How to cite:
Campos, B.G.D.; Abessa, D.M.D.S.; Martins, R. Bioaccumulation and Trophic Transfer of Soluble and Nanostructured Forms of a Commercial Antifouling Biocide. Preprints2024, 2024020406. https://doi.org/10.20944/preprints202402.0406.v1
Campos, B.G.D.; Abessa, D.M.D.S.; Martins, R. Bioaccumulation and Trophic Transfer of Soluble and Nanostructured Forms of a Commercial Antifouling Biocide. Preprints 2024, 2024020406. https://doi.org/10.20944/preprints202402.0406.v1
Campos, B.G.D.; Abessa, D.M.D.S.; Martins, R. Bioaccumulation and Trophic Transfer of Soluble and Nanostructured Forms of a Commercial Antifouling Biocide. Preprints2024, 2024020406. https://doi.org/10.20944/preprints202402.0406.v1
APA Style
Campos, B.G.D., Abessa, D.M.D.S., & Martins, R. (2024). Bioaccumulation and Trophic Transfer of Soluble and Nanostructured Forms of a Commercial Antifouling Biocide. Preprints. https://doi.org/10.20944/preprints202402.0406.v1
Chicago/Turabian Style
Campos, B.G.D., Denis Moledo de Souza Abessa and Roberto Martins. 2024 "Bioaccumulation and Trophic Transfer of Soluble and Nanostructured Forms of a Commercial Antifouling Biocide" Preprints. https://doi.org/10.20944/preprints202402.0406.v1
Abstract
After the ban on tributyltin-based antifouling paints, DCOIT (4,5-Dichloro-2-octylisothiazol-3(2H)-one) became one of the most used antifouling biocides. DCOIT is a pseudo-persistent contaminant in port areas and is toxic to non-target species, but its ability to bioaccumulate and be transferred along the trophic chain remains unknown. This study aimed to preliminarily investigate the bioaccumulation, trophic transfer, and biomagnification of DCOIT and SiNC-DCOIT (DCOIT immobilized in silica mesoporous nanocapsules) from the microalga Tetraselmis chuii to the mussel Mytilus galloprovincialis during exposure experiments considering 24 h of uptake followed by 72 h depuration. Mussels rapidly internalized and metabolized both DCOIT and SiNC-DCOIT. The predator-prey biomagnification factors (BMFTL) suggested that both forms of the biocide can be trophically transferred, with higher concentrations of DCOIT and SiNC-DCOIT in mussels than in microalgae (BMFTL > 1). However, the bioaccumulation and bioconcentration factors indicated a low bioaccumulation capability in the short term, suggesting that the depuration rate overcomes the uptake. Our findings contribute to the development of environmental risk assessments for DCOIT and SiNC-DCOIT, but do not exclude the possibility of DCOIT bioaccumulation in the long-term in areas with constant input of DCOIT. Further studies are needed to understand these processes under continuous exposure scenarios to DCOIT.
Copyright:
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
