Watercourt:
About 700 years ago the Calusa people of Southern Florida created large watercourts for capturing and storing live fish, according to a new archaeological study published in March by the Proceedings of the National Acadamy of Sciences. Although researchers have thought for years that these watercourts existed, this is the first archaeological study that documents when and how they were constructed, said archaeologist Victor Thompson of the University of Georgia, the lead author of the study. [“Ancient People Built Pens To Store Live Fish,” Paul Neely, American Archaeology (summer • 2020, print only).]
I did not find a congruent definition online; watercourt leads to articles concerning legal courts with jurisdiction over water rights.