1·The hectocotylus in benthic octopuses is usually the third right arm.
底栖章鱼中的交接腕通常是第三个右臂。
2·High abundance ratio between nematode and benthic copepoda at shrimp ponds was related to disturbance.
虾池海洋线虫与底栖挠足类丰度比率较高，与人为扰动有关。
3·The main objective of the present study is to investigate the concentrations and distribution of heavy metals in sediments and benthic organisms (aquatic oligochaetes) from sewage .
本文报道了广州市河涌沉积物及底栖生物的重金属含量及分布状况。
4·It lives near the lake bottom in the shallow water of the lake shore and feeds on benthic invertebrates.
它生活在湖边浅水区靠近湖底的水域，以底栖无脊椎动物为食。