Go to:
Logótipo
Comuta visibilidade da coluna esquerda
Você está em: Start > Publications > View > Challenges in assessing the toxic effects of polycyclic aromatic hydrocarbons to marine organisms: A case study on the acute toxicity of pyrene to the European seabass (Dicentrarchus labrax L.)
Publication

Publications

Challenges in assessing the toxic effects of polycyclic aromatic hydrocarbons to marine organisms: A case study on the acute toxicity of pyrene to the European seabass (Dicentrarchus labrax L.)

Title
Challenges in assessing the toxic effects of polycyclic aromatic hydrocarbons to marine organisms: A case study on the acute toxicity of pyrene to the European seabass (Dicentrarchus labrax L.)
Type
Article in International Scientific Journal
Year
2012
Authors
Almeida, JR
(Author)
Other
The person does not belong to the institution. The person does not belong to the institution. The person does not belong to the institution. View Authenticus page Without ORCID
Gravato, C
(Author)
Other
The person does not belong to the institution. The person does not belong to the institution. The person does not belong to the institution. Without AUTHENTICUS Without ORCID
Journal
Title: ChemosphereImported from Authenticus Search for Journal Publications
Vol. 86
Pages: 926-937
ISSN: 0045-6535
Publisher: Elsevier
Other information
Authenticus ID: P-002-CM9
Abstract (EN): The acute toxicity (96 h) of pyrene (PY) to European seabass (Dicentrachus labrax) juveniles assessed in a semi-static bioassay (SSB) with medium renewal at each 12 h, and in a static bioassay (SB) without medium renewal was compared in laboratorial conditions (water PY concentrations: 0.07-10 mg L-1). Main findings in the SSB that assessed mainly the toxicity of PY and its metabolites were: increased levels of bile PY metabolites in good agreement with the profile of lipid peroxidation levels (LPO) in exposed fish relating PY exposure and oxidative damage; increased levels of PY-type compounds in the brain indicating their ability to cross the blood-brain barrier; increased levels of these substances in liver and muscle which are edible tissues for humans thus raising concern on potential adverse effects on consumers of fish from PY contaminated areas; a significant inhibition of glutathione S-transferase activity suggesting its involvement in PY detoxication as toxicant scavenger: finally, an almost complete impairment of the swimming velocity at all the PY concentrations linking sub-individual to higher population level effects. In the SB, where the overall toxicity of PY, its metabolites and environmental degradation products was evaluated, 19% and 79% of PY decay in test media was found at 12 and 96 h, respectively. In general, the effects were similar to those of SSB but with significant effects being induced at higher PY concentrations indicating that the parental compound is more toxic than its environmental degradation products. The other main differences relatively to the SSB were: increased levels of PY-type substances in the liver suggesting more accumulation in this organ. Therefore, these findings highlight the need of carefully considering experimental design options when assessing the toxicity of readily degradable substances to marine fish, and stress the importance of taking into consideration the toxicity of environmental degradation products in addition to toxic effects of the parental substance and its metabolites for marine ecological risk assessment.
Language: English
Type (Professor's evaluation): Scientific
No. of pages: 12
Documents
We could not find any documents associated to the publication.
Related Publications

Of the same authors

Swimming velocity, avoidance behavior and biomarkers in Palaemon serratus exposed to fenitrothion (2013)
Article in International Scientific Journal
Oliveira, C; Almeida, JR; Guilhermino, L.; Soares, AMVM; Gravato, C

Of the same journal

Photocatalytic removal of pharmaceutical water pollutants by TiO2-Carbon dots nanocomposites: A review (2022)
Another Publication in an International Scientific Journal
Sendao, RMS; Joaquim C G E Esteves da Silva; da Silva, LP
Mode of action and fate of microcystins in the complex soil-plant ecosystems (2019)
Another Publication in an International Scientific Journal
Redouane, E; Zerrifi, SE; El Khalloufi, F; Oufdou, K; Oudra, B; Lahrouni, M; Alexandre Campos; Vitor Vasconcelos
Establishing the state-of-the-art on the adsorption of coexisting pnictogens in water: A literature review (2022)
Another Publication in an International Scientific Journal
Ariana Pintor; Tomasi, IT; Boaventura, RAR; Cidália Botelho
Acute effects of copper and mercury on the estuarine fish Pomatoschistus microps: Linking biomarkers to behaviour (2009)
Another Publication in an International Scientific Journal
Vieira, LR; Gravato, C; Soares, AMVM; Morgado, F; Guilhermino, L.
Vapor pressures, thermodynamic stability, and fluorescence properties of three 2,6-alkyl naphthalenes (2016)
Article in International Scientific Journal
Santos, AFLOM; Oliveira, JASA; Maria D M C R Ribeiro da Silva; Manuel J S Monte

See all (140)

Recommend this page Top
Copyright 1996-2025 © Faculdade de Direito da Universidade do Porto  I Terms and Conditions  I Acessibility  I Index A-Z
Page created on: 2025-07-25 at 09:02:09 | Privacy Policy | Personal Data Protection Policy | Whistleblowing