The website for the Beacon app states that each water spawn group uses a special value, called "Min Height" in the app, where it tests the depth of the water for whether it is allowed to spawn or not.

To quote the Animals of Atlas documentation:
"Spawns: Island/Rag/Center/Valg Oceans, Aberration Fertile Lake , Genesis Ocean Biome"

I took 'Aberration Fertile Lake' as the big lake, which has no exclusive spawner. Either way, once I have a method to properly extract the exact values mods use, I can make an update that makes this mod mimic them as accurately as possible.

The squids from Animals of Atlas now spawn in the shallow rivers in the Aberration Green Zone. Looks rather strange.