Mini Secchi vs CERF 2025

The Secchi disk is a white disk that is lowered into the water and the depth at which it disappears and reappears from sight is logged. This depth is proportional to the clarity or transparency of the water. The Forel Ule colour scale is used to classify the colour of natural waters.It consists of 21 colours ranging from blue to green to yellow to brown, and is used alongside the Secchi disk with the observer typically recording the colour of a submerged Secchi disk with this app. The app will guide you through each measurement, store location data, photos and additional observations.

Please join us at the CERF 2025 conference on 9–13 November 2025 in Richmond, Virginia, USA. We come together in an inclusive and welcoming space to network, celebrate our work, learn from each other, and grow within our amazing field as we endeavor to connect science and society in the collective goals of preserving coastal and estuarine habitats, resources, and heritage.The app will allow you to sign-in and favorite sessions or presentations allowing you to create your own custom itinerary. Filter the sessions, presentations, or participants to drill down and find the information you are looking for. Update your profile and create virtual badge.Post on the social feed for the conference to engage with your community and presenters.