Within the preferred depths of a species, either BRFA location, habitat type, or the interaction of these 2 factors had an effect on the relative abundance of 3 of the 4 species studied (Table 1).
BRFA location, habitat type, and the interaction of these 2 factors were significant for Ehu.
In our evaluation of mean lengths, BRFA location, protection, and habitat type were all important factors, and the interactions between them were sometimes significant (Table 2).
BRFA location, habitat type, and the interaction of BRFA location and protection were significant for Kalekale.
The Niihau BRFA has been closed to fishing since 1998.
Protection is designated as inside (in) or outside (out) a BRFA.
These BRFAs, which took effect on June 1, 1998, were designed to protect 20% of deepwater areas in the depth range of 100-400 m, where most Onaga and Ehu are found (Parke, 2007).