Universidade Federal Fluminense, Instituto de Geociências, Departamento de Geologia, Niterói, Rio de Janeiro, RJ, Brazil.
Universidade Federal Fluminense, Instituto de Geociências, Departamento de Geologia, Niterói, Rio de Janeiro, RJ, Brazil.
Mar Pollut Bull. 2022 Feb;175:113348. doi: 10.1016/j.marpolbul.2022.113348. Epub 2022 Feb 3.
Harbours are located in major urban centres around the world and are of great economic importance to the cities in their surroundings. However, the intense traffic of boats and ships can generate environmental impacts that can directly affect the local biota as well as the population that lives in surrounding areas. Therefore, this work aimed to analyse the surface sediment of the Niterói Harbour using chemical, biological and micropalaeontological tools to investigate the environmental condition of this important harbour in Rio de Janeiro State. The pseudototal trace metal data analysed in the surface samples showed values far above those of the greater Guanabara Bay background. These data were corroborated by a high mortality rate of Artemia sp. and elevated presence of the bacterium Vibrio fischeri, indicating a high rate of local pollution. Dinoflagellate cysts also showed a direct response to high values of pseudototal trace metals. The data obtained in this study emphasize a need for greater monitoring of ports since the experience gained through this study in a Brazilian harbour can serve as an example for the management of other harbours located in large urban centres around the world.
港口位于世界各地的主要城市中心，对周边城市具有重要的经济意义。然而，船只的密集交通可能会产生环境影响，直接影响当地生物群和生活在周边地区的人口。因此，本工作旨在利用化学、生物和微古生物学工具分析尼泰罗伊港的表层沉积物，以调查该里约热内卢州重要港口的环境状况。对表层样品进行的伪痕量金属分析数据显示，其值远高于大瓜纳巴拉湾的背景值。这些数据得到了卤虫高死亡率和发光杆菌 Vibrio fischeri 高存在率的证实，表明当地污染程度很高。甲藻孢囊也对伪痕量金属的高值表现出直接的响应。本研究获得的数据强调了需要加强对港口的监测，因为通过本研究在巴西港口获得的经验可以为管理世界上其他位于大城市中心的港口提供范例。
