162 
Fishery Bulletin 1 10(2) 
Recreational Charter 
Circle J Circle J 
Hook type 
Figure 2 
Plots of the average catch per trip (±standard error) on circle hooks (open bars) and J 
hooks (gray bars). Data for each species are from both directed and nondirected trips 
for that species. Plots are broken down by user group (recreational [left column, panels 
A-C] and charter [right column, panels D-F]) and species (dolphinfish [Coryphaena 
hippurus] [A, D], yellowfin tuna [Thunnus albacares] [B, E], and wahoo [ Acanthocybium 
solandri] [C, F] ). The legend denoting fill pattern for each leader type applies to all 
panels. No bar for a particular hook-type + species+user-group+leader-type combination 
indicates no catch. 
with hook-user, hook-leader, and hook-species interac- 
tions each received a relatively small amount of sup- 
port. Greater numbers of strikes occurred 1) on charter 
boats (owing to a greater number of rods fished), 2) 
when using monofilament leaders, and 3) from dolphin- 
fish than any other species. As with the three species 
data, there was little difference in the average strikes 
per trip between circle and J hooks for each taxa (Fig. 
5). Similarly, the model that best fitted strike data for 
the taxa was the base model with hook, but the base 
model without hook received only slightly less support 
(Table 3; Fig. 5). Models with hook-user, hook-species, 
and hook-leader interactions received relatively minor 
support. 
The second mechanism contributing to catch was 
hook-up. J hooks were more effective at hooking fish 
for many user group-species combinations (Fig. 6). 
Hook was a main effect in the model that best fit- 
ted the proportional hook-up data (Table 4). Models 
that received less support included hook-user, hook- 
species, hook-leader, and hook-species + hook-user 
interactions. The base model received no support. 
There was a reduction of hook-ups for dolphinfish 
when circle hooks were used on both recreational and 
