Berlin’s Viktoriapark was opened in 1894, and features a large manmade waterfall (Kreutzberger Wasserfall) and several ponds, statues, sculptures and monuments.
This bronze sculpture called Der Seltene Fang (The Rare Catch) by Ernst Herter was unveiled in 1896 in the lower pond, depicting a fisherman struggling to keep hold of a twin-tailed mermaid caught in his net. map
While most of Viktoriapark is at higher elevation, this pond and the statue are at street level, at the bottom of the waterfall.
GErnst Herter also created the Lorelei Fountain in The Bronx in New York, as a memorial to German poet Heinrich Heine.
References:
● https://en.wikipedia.org/wiki/Ernst_Herter
● The Mermaids of Earth coffee-table book: See page 55 in the book about this sculpture.