The Role of Temperature on the Impact of Remediated Water towards Marine Organisms

Author:

Coppola Francesca,Bessa Ana,Henriques BrunoORCID,Russo Tania,Soares Amadeu M. V. M.ORCID,Figueira Etelvina,Pereira Eduarda,Marques PaulaORCID,Polese GianlucaORCID,Freitas RosaORCID

Abstract

Marine organisms are frequently exposed to pollutants, including trace metals, derived from natural and anthropogenic activities. In order to prevent environmental pollution, different approaches have been applied to remove pollutants from waste water and avoid their discharge into aquatic systems. However, organisms in their natural aquatic environments are also exposed to physico-chemical changes derived from climate change-related factors, including temperature increase. According to recent studies, warming has a negative impact on marine wildlife, with known effects on organisms physiological and biochemical performance. Recently, a material based on graphene oxide (GO) functionalized with polyethyleneimine (PEI) proved to be effective in the remediation of mercury (Hg) contaminated water. Nevertheless, no information is available on the toxic impacts of such remediated water towards aquatic systems, neither under actual nor predicted temperature conditions. For this, the present study assessed the toxicity of seawater, previously contaminated with Hg and remediated by GO-PEI, using the clam species Ruditapes philippinarum exposed to actual and a predicted temperature conditions. The results obtained demonstrated that seawater contaminated with Hg and/or Hg+GO-PEI induced higher toxicity in clams exposed to 17 and 22 °C compared to organisms exposed to remediated seawater at the same temperatures. Moreover, similar histological and biochemical results were observed between organisms exposed to control and remediated seawater, independently of the temperatures (17 and 21 °C), highlighting the potential use of GO-PEI to remediate Hg from seawater without significant toxicity issues to the selected marine species.

Publisher

MDPI AG

Subject

Water Science and Technology,Aquatic Science,Geography, Planning and Development,Biochemistry

Reference90 articles.

1. Northern cod species face spawning habitat losses if global warming exceeds 1.5°C

2. Climate Change 2007: The Physical Science Basis. Contribution of Work Group I to the Fourth Assessment Report of the Intergovernmental Panel on Climate,2007

3. Global Warming of 1.5 °C. An IPCC Special Report on the Impacts of Global Warming of 1.5°C above Pre-Industrial Levels and Related Global Greenhouse Gas Emission Pathways, in the Context of Strengthening the Global Response to the Threat of Climate Change, Sustainable Development, and Efforts to Eradicate Poverty,2018

4. Global warming and environmental contaminants in aquatic organisms: The need of the etho-toxicology approach

5. Interactive effects of metal pollution and temperature on metabolism in aquatic ectotherms: implications of global climate change

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