1. The Knysna Estuary A review

2. The main hydrographic divisions

3. Flushing rate in days

4. Distribution of salinity with low river inflow

5. Salinity distribution during high flows and floods

7. Distribution of dissolved nitrogen salts

8. Distribution of soluble inorganic phosphorus salts

9. Suspended solids The data so far presented tells us that the estuary is not enriched (as yet) but it says nothing about the variation in light climate due to suspended solids borne in the flood waters. The next slide shows how critical this can be! The data so far presented tells us that the estuary is not enriched (as yet) but it says nothing about the variation in light climate due to suspended solids borne in the flood waters. The next slide shows how critical this can be!

10. The Bongani stream delta, Nov 2007

11. An eelgrass bed at high tide

12. An eelgrass bed partially collapsed at low tide – Kingfisher Creek

15. Collections of macroalgae from intertidal flats of Ashmead each is from 1 sq metre