Aquat. Living Resour.
Volume 30, 2017
|Number of page(s)||6|
|Published online||23 June 2017|
Study on different hook and bait types in the Persian Gulf hand line fishery: optimization and development☆
Fisheries Department, Gorgan University of Agricultural Sciences and Natural Resources,
Accepted: 26 February 2017
The hand line fishery in the Persian Gulf is considered a sustainable fishing practice. The aims of this study were to estimate catch composition, catch rates, length frequencies, and the percentage of individuals caught below length-at-maturity with two types of hooks, circle and J-style with natural and artificial bait by hand line fishing. Circle and J-style hooks with natural and artificial bait were alternated. Sampling operations were carried out on Qeshm Island, in the North of the Persian Gulf in spring 2015. Catch per unit effort for J-hooks with natural and artificial bait and circle hooks with natural and artificial bait differed significantly (p < 0.05); they were 0.9772 ± 0.25, 0.7772 ± 0.26, 0.5688 ± 0.32, and 0.4108 ± 0.23 kg/hook/h, respectively. Thus, the highest catch rates were obtained with J-style hooks with natural bait. Kolmogorov–Smirnov tests showed that the length frequency distributions for Lethrinus nebulosus, and Alectis indicus differed significantly between treatments (p < 0.05), while no significant differences were found for other species (p > 0.05). For most species (except L. nebulosus), there was no significant difference between circle and J-style hooks for the proportion of individuals smaller than length-at-maturity (p > 0.05).
Key words: Hook / Bait / Length frequency / Catch rate / Hand line / Persian Gulf
Supplementary material is only available in electronic form at www.alr-journal.org.
© EDP Sciences 2017
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.