Buzzwords
Wikipedia: An estuary is a partly enclosed coastal body of brackish water with one or more rivers or streams flowing into it, and with a free connection to the open sea.
Elsewhere on the Web
Estuary Facts – NOAA
Soundsurvey.org.uk
http://www.soundsurvey.org.uk/index.php/tidal-thames/rachel-lichtenstein
New Zealand
https://www.doc.govt.nz/nature/habitats/estuaries/our-estuaries
The #OurEstuaries community resource will help you explore and learn more about our many estuaries. It includes a wealth of information to help us make a difference to these special places, including interactive maps and education resources: https://t.co/UrzVc7dmJQ pic.twitter.com/xS4bXWgCiv
— Department of Conservation (@docgovtnz) November 16, 2018
Wikipedia
Estuary
Planeta.com