Environmental bioindicator环境生物指示器
The species of less Niche breadth, which has certain restrictive demand sometimes to the environment, are the bioindicator of aquatic organism monitoring.
生态位宽度较小的种，往往对环境有一定的限制性要求，可做为水体生物监测的指示生物。
参考来源 - 农业面源水污染对水生昆虫的波动性不对称的影响