Faria Mafalda S, Lopes Ricardo J, Malcato João, Nogueira António J A, Soares Amadeu M V M
CESAM & Departamento de Biologia da Universidade de Aveiro, Campus de Santiago, 3810-193 Aveiro, Portugal.
Environ Pollut. 2008 Jan;151(1):213-21. doi: 10.1016/j.envpol.2007.01.050. Epub 2007 May 7.
In this study we evaluate the ability of an in situ bioassay with Chironomus riparius larvae, using larval development and growth as endpoints, to biomonitor water quality and to assess the biological recovery of metal contaminated freshwater ecosystems of mine areas that are subject of restoration measures. The bioassay was carried out in streams located near an abandoned goldmine in North Portugal, throughout an environmental rehabilitation of the mine (2002-2004). During this period, a decrease in the inhibition of larval growth in the metal contaminated stream was observed. The bioassay was also performed in streams located near an active tungsten mine in Central Portugal. Larval growth and development were highly inhibited in the stream that receives acid drainage from the tungsten mine and treated water from the AMD treatment station. The results indicate that the bioassay can be used to evaluate the efficiency of environmental restoration measures in mining areas.
在本研究中，我们评估了以摇蚊幼虫进行原位生物测定的能力，该生物测定以幼虫发育和生长作为终点指标，用于生物监测水质，并评估正在采取修复措施的矿区受金属污染的淡水生态系统的生物恢复情况。生物测定是在葡萄牙北部一座废弃金矿附近的溪流中进行的，贯穿了该矿山的环境修复期（2002年至2004年）。在此期间，观察到在受金属污染的溪流中幼虫生长抑制有所下降。生物测定还在葡萄牙中部一座活跃钨矿附近的溪流中进行。在接收来自钨矿的酸性排水和来自酸性矿山排水处理站的处理水的溪流中幼虫生长和发育受到高度抑制。结果表明，该生物测定可用于评估矿区环境修复措施的效率。
