Figure 2. Detailed illustrations of double-netting, first section. (A) Dissected parts individually placed inside a capped plastic bottle half-filled with tap water; (B) capped plastic bottle shaken 10 consecutive times in an up–down motion; (C) or in a half-filled dissection tray shaken by hand in a lateral motion; (D) two hand-nets overlapped to create a double net; (E) water left in the plastic bottle filtered by the double net, after removal of big dissected pieces; (F) or water in the tray filtered with the double net; (G) nets washed in circular motion with gentle flow of tap water; (H, I) Petri dish filled to less than one-third with tap water. Black arrows indicate the directions to shake the dissected parts (B, C) and to wash the nets (G).