After the Annapolis was sunk, a study was launched to study the fish and other marine life in the area. The Annapolis Biodiversity Index Study (ABIS) ran from 2015 to 2021 and used a team of divers to consistently check on the local marine life that had made the Annapolis their home. The study found that around 179 different species lived on the sunken ship. You can read the report here and more information on the ARSBC website here.
Gavin