Used for “semi-quantitative” analysis of benthic stream organisms. Can be used in silt or large cobble. Substrates contained within the 12” x 12” folding brass frame are agitated to dislodge insects while water flow transports animals into plankton net. Heavy-duty Nitex® mesh net is supported by perpendicular frame members. Nylon carrying bag also included.
HP. 08118780111 atau 081213112111
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