Yellowbar Parrotfish have rough jaws of fused pebble-like teeth that scrape the stiff seaweed.

Yellowbar parrotfish are only found in the Northwestern Hawaiian Islands starting from O'ahu and moving northwest.

Specific conservation measures include preserving healthy populations with suitable fishing laws and education, in addition to common statewide and island conservation measures.

Reproductive data should be used to support management based on minimum size limitations, with size restrictions set to guarantee that at least a portion of the population of each species fished reaches sexual maturity prior to being subjected to fishing pressure.

Because members of this family spend the night in exposed reef crevices that are covered in a thin layer of mucus that they create, they are sensitive to nighttime spear fishing.