Greek limne lake + bios life.

Limnobionts are organisms (invertebrates, fish, mammals) that live in lakes.

Limnophiles (Greek limne lake + phileo love) plants and animals that prefer lakes as a habitat.

Limnophilic fish - fish living in standing waters, lakes, ponds (crucian carp, lake minnow, loach, bream, tench, etc.).