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首页> 外文期刊>Turkish Journal of Fisheries & Aquatic Sciences >Selectivity and Catch Efficiency of Three Spinner Hook Sizes in Angling for Rainbow Trout (Oncorhynchus mykiss Walbaum, 1792) in Karakaya Dam Lake (Eastern Turkey)
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Selectivity and Catch Efficiency of Three Spinner Hook Sizes in Angling for Rainbow Trout (Oncorhynchus mykiss Walbaum, 1792) in Karakaya Dam Lake (Eastern Turkey)

机译：卡拉卡亚水坝湖（土耳其东部）中三种虹鳟鱼垂钓虹鳟的选择性和捕捞效率（Oncorhynchus mykiss Walbaum，1792年）

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摘要

The aim of this study was to determine the relationship between spinner hook sizes (2, 3 and 4) and hook selectivity for Oncorhynchus mykiss (rainbow trout), a species important to recreational fisheries in Karakaya Dam Lake in Eastern Turkey. A total of 24 sampling trips were carried out twice per month by the same three anglers from May 2013 to April 2014. The SELECT method was used to determine the selectivity parameters. An analysis to determine the differences in the catch per unit effort (CPUE), yield per unit effort (YPUE) and condition factor values based on different hook sizes was conducted using one-way ANOVA. During the spinner hook-size experiments, we captured 202 Oncorhynchus mykiss, which ranged from 14.5 cm to 46.0 cm TL in length and weight 30.2 g to 1320.2 g. The mean lengths (+/- SE) of Oncorhynchus mykiss captured on the three spinner hook sizes were determined. The optimum lengths calculated by log-normal model were found to be 18.28, 27.41 and 36.55 cm for No 2, No 3 and No 4 hook sizes, respectively.
机译：这项研究的目的是确定微调钩大小（2、3和4）与钩吻选择性对Oncorhynchus mykiss（虹鳟）的关系，该物种对土耳其东部Karakaya Dam Lake的休闲渔业很重要。从2013年5月至2014年4月，相同的三个钓鱼者每月共进行两次采样旅行，共两次。使用SELECT方法确定选择性参数。使用单向方差分析（ANOVA）进行了分析，以确定基于不同吊钩尺寸的单位捕获量（CPUE），单位捕获量（YPUE）和条件因子值之间的差异。在旋转钩大小的实验中，我们捕获了202个Oncorhynchus mykiss，长度从14.5 cm至46.0 cm TL，重量从30.2 g至1320.2 g。确定了在三个旋转钩尺寸上捕获的Oncorhynchus mykiss的平均长度（+/- SE）。通过对数正态模型计算得出的最佳长度分别是No 2，No 3和No 4钩尺寸的18.28、27.41和36.55 cm。

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