Universidade Estadual do Maranhão, Programa de Pós-Graduação em Biodiversidade e Biotecnologia - REDE BIONORTE, São Luís, MA, Brasil.
Universidade Estadual do Maranhão, Programa de Pós-Graduação Mestrado em Ecologia e Conservação da Biodiversidade, São Luís, MA, Brasil.
Braz J Biol. 2023 May 22;83:e271232. doi: 10.1590/1519-6984.271232. eCollection 2023.
Enzymatic (glutathione S-transferase, GST and catalase, CAT) and histological biomarkers in S. herzbergii are important for the analysis of impacted estuaries in port regions of the Brazilian Amazon coast. Fish specimens were collected in two areas in the rainy and dry seasons: Porto Grande (potentially impacted region) and Ilha dos Caranguejos (less impacted region). Sediment samples were collected for chemical analysis. Morphometric, histological, and enzymatic biomarker analyzes were performed. The analysis of the sediments collected in the potentially impacted region showed levels of iron, aluminum and polycyclic aromatic hydrocarbons above the limits allowed by CONAMA legislation. Histological changes in the gills and liver, as well as GST and CAT activities, were high in fish collected at the port. Analyzes suggest that fish in the potentially impacted region are subject to pollutants that compromise their health.
在巴西亚马逊海岸的港口地区，研究受影响河口时，赫氏溪蟹体内的酶（谷胱甘肽 S-转移酶、GST 和过氧化氢酶、CAT）和组织学生物标志物非常重要。在雨季和旱季，我们在两个区域采集了赫氏溪蟹标本：大波特港（受潜在影响的区域）和螃蟹岛（受影响较小的区域）。我们还采集了沉积物样本进行化学分析。我们进行了形态计量学、组织学和酶生物标志物分析。对潜在受影响区域采集的沉积物的分析表明，铁、铝和多环芳烃的含量均高于 CONAMA 法规允许的限度。在港口采集的鱼的鳃和肝脏组织发生了变化，GST 和 CAT 的活性也很高。分析表明，潜在受影响区域的鱼类受到了污染物的影响，健康受到了威胁。
