| Habitat type | Standard sampling | Complementary sampling |
|---|---|---|
| Rock bottoms | D-frame net per time unit | Rinse and dislodge organisms from rocks |
| Submerged vegetation | D-frame net per time unit | 25 cm 2 to 64 cm 2 plant collection (according microhabitat availability) |
| Debris | D-frame net per time unit | 200 ml flask full of litter, or rinse and dislodge organisms from roots, branches and logs |
| Aquatic mosses | D-frame net per time unit | 25 cm 2 to 64 cm 2 moss collection (according microhabitat availability) |