Programa de Pós-Graduação em Biodiversidade Neotropical (PPGBIO), Universidade Federal do Estado do Rio de Janeiro (UNIRIO), Brazil.
Programa de Pós-Graduação em Biodiversidade Neotropical (PPGBIO), Universidade Federal do Estado do Rio de Janeiro (UNIRIO), Brazil.
Mar Pollut Bull. 2021 Aug;169:112508. doi: 10.1016/j.marpolbul.2021.112508. Epub 2021 May 25.
The present study aimed to assess corocoro grunt use as bioindicator of Hg contamination in coastal marine systems by testing environmental (seasons) and biological effects (sexual maturity, size and weight) on THg accumulation and assessing human health risk. Fish was captured in winter and summer seasons at Vermelha Beach, Rio de Janeiro, Southeast Brazil. Adult O. ruber showed significantly higher THg than juveniles, and THg concentrations were positively correlated to fish length and weight. Fish THg concentrations did not differ between seasons and were below the accepted limit for human consumption. Human exposure risk by fish consumption was 0.31 μg MeHg kg week and the hazard quotient was 0.44 (0.11-1.84). Our results confirm the applied use of O. ruber as sentinel species for Hg contamination monitoring and highlight concern for its consumption, especially for local fishermen populations that highly consume this fish and may be more susceptible to Hg adverse effects.
本研究旨在评估科罗科罗呼噜声（Corocoro grunt）在沿海海洋系统中作为汞污染生物指标的作用，通过测试环境（季节）和生物效应（性成熟、大小和体重）对总汞（THg）积累的影响，并评估人类健康风险。在巴西东南部里约热内卢的 vermelha 海滩，于冬季和夏季捕获鱼类。成年 O. ruber 的总汞含量明显高于幼鱼，并且总汞浓度与鱼的长度和重量呈正相关。鱼类的总汞浓度在季节之间没有差异，并且低于人类可接受的食用限量。通过食用鱼类，人类的暴露风险为 0.31μgMeHgkg 周，危害系数为 0.44（0.11-1.84）。我们的结果证实了 O. ruber 作为汞污染监测的指示物种的应用，并强调了对其食用的关注，特别是对于当地渔民群体，他们大量食用这种鱼，可能更容易受到汞的不利影响。
