Photo credit via Merriam Webster
Clean oceans must continue being bastions for fish to survive.
Definition
(noun)
A place or system in which something continues to survive.
Sentence
Clean oceans must continue being bastions for fish to survive.
The Declaration • March 25, 2022 • https://thedeclarationatcoloniahigh.com/56488/wordoftheday/bastion/
Bastion