The utility model relates to benthic animal sampling device field, concretely relates to a sampling device suitable for large benthic
invertebrate investigation in flood period, including
cement fixed base, drift net and
buoy. The
cement fixed base is made of hollow
brick irrigation cement, its top surface central fixed has annular steel ring, and the edge is fixed with support rod, the drift net includes square net frame and net bag, and is fixed in the base side through support rod, the
buoy is connected with the annular steel ring of base through the
rope. The utility model discloses the self -weight of cement base resists the
impact of
water flow, solves the problem that the existing drift net is prone to lodging in flood period, and cannot be used in hard riverbed, and through the cooperation of
buoy and
rope, realizes the quick positioning and
recovery in
deep water environment, and the device is simple in structure, stable and reliable, and has wide bottom quality adaptability, and is suitable for benthic animal sampling in flood period, various bottom quality and complex
water flow conditions.