Performance of circle hooks in a mixed-species recreational fishery

被引：18

作者：

Alos, J. ^{[1
]}

Mateu-Vicens, G. ^{[2
]}

Palmer, M. ^{[1
]}

Grau, A. M. ^{[3
]}

Cabanellas-Reboredo, M. ^{[1
]}

Box, A. ^{[1
,2
]}

机构：

[1] IMEDEA CSIC UIB, Inst Mediterraneo Estudios Avanzados, S-07190 Esporles, Illes Balears, Spain

[2] Univ Illes Balears, Lab Biol Marina, Dept Biol, Palma de Mallorca, Illes Balears, Spain

[3] Govern Illes Balears, Direccio Gen Pesca, Palma de Mallorca, Illes Balears, Spain

来源：

JOURNAL OF APPLIED ICHTHYOLOGY | 2009年 / 25卷 / 05期

关键词：

CATCH-AND-RELEASE; SIZE-SELECTIVITY; CAPTURE EFFICIENCY; MORTALITY; INJURY; MARINE; BASS; CONSERVATION; MANAGEMENT; LOCATION;

D O I：

10.1111/j.1439-0426.2009.01272.x

中图分类号：

S9 [水产、渔业];

学科分类号：

0908 ;

摘要：

P>The effects of the circle-hook on hooking injury, fish size and catch rates were evaluated for mixed-species recreational boat fisheries in the Balearic Islands (NW Mediterranean). The relationships between deep-hooking incidence (the main cause of fish mortality) and hook type (circle hooks vs conventional J-hooks), fish size, and angler were tested. Results demonstrated that the size of the fish was the most important predictor of deep-hooking incidence, as a larger fish size resulted in an increase in deeper wounds. Hook type also had a significant effect on the deep-hooking rate. Specifically, the deep-hooking rate of the most frequently-caught species, Diplodus annularis (L.) and Coris julis (L.), was reduced by greater than half with the circle hooks. The mean size of the fish caught and the unhooking time were not affected by the use of circle hooks. Finally, their use resulted in no change in the catch per unit effort (CPUE) compared to conventional hooks for both univariate and multivariate procedures. Hence, circle hooks are a promising conservation tool for marine resources when linked with catch-and-release strategies.

引用

页码：565 / 570

页数：6