Bianchini Adalto, Fukushima Letícia May, Grillo Ana Carolina, Inagaki Kelly Yumi, Souza Juliana de Andrade, Bechara Ligia Salgado, Destri Giovanna, Picolotto Vitor André Passos, Vidal Thales Jean, Araújo Alessandra Lopes de, Fonseca Juliana da Silva, Calderon Emiliano Nicolas, Salvi Kely Paula, Lacerda Carlos Henrique Figueiredo, Costa Patrícia Gomes, Mies Miguel
Instituto de Ciências Biológicas, Universidade Federal do Rio Grande - FURG, Avenida Itália km 8, Campus Carreiros, 96.203-900, Rio Grande, RS, Brazil.
Instituto Coral Vivo, Rua dos Coqueiros 87, 45807-000, Santa Cruz Cabrália, BA, Brazil.
MethodsX. 2024 Sep 5;13:102949. doi: 10.1016/j.mex.2024.102949. eCollection 2024 Dec.
In 2015, a marine mesocosm facility was designed and implemented by the Coral Vivo Project in its research station (Porto Seguro, Bahia State, Brazil) to initially study the effects of global impacts, especially ocean warming and acidification, on coral reefs. However, local impacts, including seawater contamination with metal(loid)s, are considered as a major threat to coral reefs. Also, in 2015, the largest disaster involving a mining dam occurred in Brazil. Iron (Fe) mining tailings originated from the dam failure affected not only freshwater ecosystems (rivers, lakes and lagoons), but also adjacent beaches, mangroves, restingas, reefs and other marine systems. Seawater, sediments and biota were contaminated with metal(loid)s, especially Fe, arsenic (As), mercury (Hg) and manganese (Mn). Therefore, we aimed to adapt the marine mesocosm facility of the Coral Vivo Project to evaluate the bioaccumulation and biological impacts of increasing concentrations of dissolved Fe on a diversity of reef organisms. Results obtained indicate a great versatility and reliability of the marine mesocosm system for application in biological and ecological studies on the isolated effect of seawater dissolved Fe on reef organisms of different functional groups simultaneously.•Studies involving seawater enrichment with dissolved Fe can be performed using a marine mesocosm system.•The marine mesocosm is a reliable tool to study the isolated effects of metal(loid)s on reef organisms.
2015年,珊瑚活体项目在其研究站(巴西巴伊亚州塞古鲁港)设计并实施了一个海洋中宇宙设施,以初步研究全球影响,特别是海洋变暖和酸化对珊瑚礁的影响。然而,包括海水被金属(类金属)污染在内的局部影响被认为是对珊瑚礁的主要威胁。同样在2015年,巴西发生了涉及一座采矿大坝的最大灾难。大坝决堤产生的铁(Fe)矿尾矿不仅影响了淡水生态系统(河流、湖泊和泻湖),还影响了邻近的海滩、红树林、滨海平原、珊瑚礁和其他海洋系统。海水、沉积物和生物群被金属(类金属)污染,尤其是铁、砷(As)、汞(Hg)和锰(Mn)。因此,我们旨在对珊瑚活体项目的海洋中宇宙设施进行改造,以评估溶解态铁浓度增加对多种珊瑚礁生物的生物累积和生物学影响。获得的结果表明,海洋中宇宙系统在同时研究海水溶解态铁对不同功能组珊瑚礁生物的单独影响的生物学和生态学研究中具有很强的通用性和可靠性。
• 可以使用海洋中宇宙系统进行涉及用溶解态铁富集海水的研究。
• 海洋中宇宙是研究金属(类金属)对珊瑚礁生物的单独影响的可靠工具。