. California fish and game. Fisheries -- California; Game and game-birds -- California; Fishes -- California; Animal Population Groups; Pêches; Gibier; Poissons. BARBED AND BARBLESS HOOK EFFICIENCY 109 TABLE 1. Comparison of Hook Types Selected by San Francisco Bay Area Salmon Charter- boat Anglers. Date of Hook type used sample Barbed Barbless Total 18 Feb 84 29 28 57 5 May 84 106 119 225 9 Sept 84 67 67 134 Total 202 214 416 ^j^*#*' 4^.. FIGURE 3. Sinker release with kg ball sinker (top) and Deep Six diving plane (bottom). Photograph by author (January 1985). Results and Discussion There
. California fish and game. Fisheries -- California; Game and game-birds -- California; Fishes -- California; Animal Population Groups; Pêches; Gibier; Poissons. BARBED AND BARBLESS HOOK EFFICIENCY 109 TABLE 1. Comparison of Hook Types Selected by San Francisco Bay Area Salmon Charter- boat Anglers. Date of Hook type used sample Barbed Barbless Total 18 Feb 84 29 28 57 5 May 84 106 119 225 9 Sept 84 67 67 134 Total 202 214 416 ^j^*#*' 4^.. FIGURE 3. Sinker release with kg ball sinker (top) and Deep Six diving plane (bottom). Photograph by author (January 1985). Results and Discussion There were no statistically significant differences in the catches of chinook or coho salmon using barbed or barbless hooks for any size class examined, except for sublegal chinook off Eureka, where 28 were caught using barbless hooks compared to 12 caught using barbed hooks (Table 2). The sample size of the fish, however, was very small (n = 40). It was expected that barbless hooks might catch fewer coho than barbed hooks because coho are more active fighters than chinook and would more likely throw a barbless hook. The data, however, indicated no significant difference between the two hook types for either species. Butler and Loeffel (1972) conducted a barbless hook study on salmon caught off Oregon using commercial troll gear and found that , , and 52% of the legal size chinook, sublegal chinook, and legal coho, respectively, were caught using barbed hooks. Only coho were caught in significantly higher num- bers (P < ). Richard Hallock of the California Department of Fish and Game compared the effectiveness of barbless hooks in a 1950 study off northern California using commercial gear and found that 56% of the chinook and 57% of the coho were caught on barbless hooks (Table 3). He could not explain why more salmon were caught on barbless hooks, but concluded that barbless hooks were at least as efficient as barbed hooks in catching chinook or coho salmon on comme
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