Lox are slow and have poor visual range. They tend to respawn in the same spots each time creatures can respawn after being cleared out so where ever they were standing when you first saw them is where you should place a few camp fires or a work bench or 2. Then they won't respawn there. Any lox that then spawn will do so at the next nearest lox spawn point.

Alternatively you can waste quite a bit of time and tame the ones that are there. They won't wander far from the spawn point and new wild ones won't spawn there as long as the tame ones are on the spawn point.