| PN21541 | Indicator guidelines: extent and distribution of key habitat types | |
| PN21545 | Indicator guidelines: nutrient concentrations in the water column and/or sediments | |
| PN21535 | Indicator guidelines: animal or plant species abundance | |
| PN21539 | Indicator guidelines: dissolved oxygen | |
| PN21553 | Indicator guidelines: water clarity | |
| PN21543 | Indicator guidelines: presence of litter (rubbish and marine debris) | |
| PN21537 | Indicator guidelines: surface water chlorophyll a concentrations | |
| PN21551 | Indicator guidelines: toxicant concentrations | |
| PN21549 | Indicator guidelines: sedimentation/erosion rates | |
| PN21547 | Indicator guidelines: pest species | |
