I have to wonder what is happening to Ukraine’s coast guard counterparts? I think this may be a sample.
“The flagship of Russia’s Black Sea fleet — the missile cruiser Moskva and the patrol ship Vasily Bykov — were reported in the area, according to the Ukrainians.” August 2012 Ministry of Defense photo from Wikipedia commons.
I heard that it is more like Crimea they had a Coast Guard dock when Russia fought in 2014 Russia placed a Frigate right in the way of any Launch
After annexation of Crimea the Coast Guard moved to the Port of Odessa for a few years
I do not have any details of hostilities and the role of any Russia deployments but I guess there is a simmilar situation for Odessa now
Another take on the story. https://cdrsalamander.blogspot.com/2022/02/fullbore-friday_25.html
Information on the fate of the Snake Island crew.