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首页> 外文期刊>The Open Fish Science Journal >Use of external Indicators to Evaluate Stress of Largemouth (Micropterussalmoides) and Smallmouth (M. dolomieu) Bass at Tournaments
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Use of external Indicators to Evaluate Stress of Largemouth (Micropterussalmoides) and Smallmouth (M. dolomieu) Bass at Tournaments

机译：使用外部指标评估比赛中大嘴鲈（Micropterussalmoides）和小嘴鲈（M. dolomieu）的压力

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The popularity of catch and release tournaments targeting largemouth (Micropterus salmoides) and smallmouth(M. dolomieu) bass has continued to increase over the past few decades. In 2008, Lake Champlain hosted 95 tournaments,including several large-scale events hosted in Plattsburgh, NY. As in any catch-and-release fishery, released fish exhibitvarying amounts and types of stress, potentially generating sub-lethal population-level impacts. Due to the large volumeof fish that move through catch and release tournaments, blood chemistry analysis is generally outside of the temporal andfinancial constraints of tournament organizers. External indicators of stress can be used to determine stress levels in largenumbers of fish. We adapted some of these indicators (e.g., wounding, response to stimuli) from research in marine andcommercial fisheries to assess fish stress following weigh-in at Plattsburgh-based catch and release tournaments. Additionally,we collected data including fish measurements, lake temperature, fish capture locations, and information on tournamenthandling practices to determine which external factors influenced fish stress levels. Generalized linear modelsshowed increased likelihood of elevated stress levels as a positive function of ambient lake temperature, fish size, andlivewell transport distance. Comparison of results with existing research on bass stress are consistent with our models, indicatingthat external signs of stress can be used to evaluate black bass stress levels at catch-and-release tournaments.
机译：在过去的几十年中，针对大嘴鲈（Micropterus salmoides）和小嘴鲈（M. dolomieu）低音的擒拿和释放比赛的流行一直在增加。 2008年，尚普兰湖（Lake Champlain）举办了95场比赛，其中包括在纽约州普拉茨堡举办的几场大型赛事。像在任何捕捞和释放渔业中一样，释放的鱼类表现出不同的数量和类型的压力，有可能产生亚致死种群水平的影响。由于大量鱼在捕捞和释放比赛中移动，血液化学分析通常不在比赛组织者的时间和财务限制范围之内。外部压力指标可用于确定大量鱼类的压力水平。我们根据海洋和商业渔业研究中的一些指标（例如，伤害，对刺激的反应）进行了调整，以评估在基于普拉茨堡的捕捞和释放比赛中权衡后的鱼类压力。此外，我们收集了数据，包括鱼类测量值，湖泊温度，鱼类捕获位置以及比赛处理方法的信息，以确定哪些外部因素影响了鱼类的压力水平。广义线性模型显示，应力水平升高的可能性随着周围湖泊温度，鱼类大小和活井运输距离的正函数而增加。将结果与现有有关低音压力的研究进行的比较与我们的模型相符，表明可以使用外部压力迹象来评估接发球赛中的黑色低音压力水平。

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