Affiliation:
1. Instituto Hippocampus Ipojuca Pernambuco Brazil
2. Departamento de Estatística e Ciências Atuárias Universidade Federal de Sergipe São Cristóvão, Sergipe Brazil
3. Departamento de Zoologia, Centro de Biociências Universidade Federal de Pernambuco Recife Pernambuco Brazil
Abstract
AbstractIn 2019, there was an environmental catastrophe in Brazil, when more than 5000 tons of unknown origin crude oil invaded beaches and mangroves. Two years later, two monitoring areas were selected to study seahorses’ offspring: Massangana River estuary (apparently healthy area) and Cocaia Island (affected area). Thirty‐six reproductive events of Hippocampus reidi (Syngnathidae) couples from these two areas were monitored to analyze the offspring. At the apparently healthy area, no newborns with malformations were found. However, the offspring from Cocaia Island showed a mean of 19.73% (±5.23) malformations in newborns. It is argued that the toxic/teratogenic effects of polycyclic aromatic hydrocarbons have affected the population in two ways: directly through the induction of mutations in the germ cells of the species and through a drastic reduction of the population (bottleneck effect) whose density observed today recovered through consanguineous couplings, potentiating deleterious genotypes in the offspring. Environ Toxicol Chem 2024;43:1996–2004. © 2024 SETAC
Reference50 articles.
1. Toxicity of effluents from gasoline stations oil-water separators to early life stages of zebrafish Danio rerio
2. Araújo‐Castro C. M. V.(2008).Padronização e aplicação do copépodo marinho bentônico Tisbe biminiensis como organismo‐teste em avaliações toxicológicas de sedimentos estuarinos [Unpublished doctoral dissertation]. Universidade Federal de Pernambuco.
3. Evaluation of Fish Early Life-Stage Toxicity Models of Chronic Embryonic Exposures to Complex Polycyclic Aromatic Hydrocarbon Mixtures
4. Brazilian Institute of the Environment and Renewable Natural Resources [IBAMA]. (2020). Instituto Brasileiro do Meio Ambiente e dos Recursos Naturais Renováveis.Manchas de óleo no litoral Brasileiro. Fauna atingida.http://www.ibama.gov.br/manchasdeoleo-fauna-atingida
5. Fish embryos are damaged by dissolved PAHs, not oil particles