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首页> 外文期刊>ICES Journal of Marine Science >Ultrasonic tracking reveals multiple behavioural modes of snapper (Pagrus auratus) in a temperate no-take marine reserve
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Ultrasonic tracking reveals multiple behavioural modes of snapper (Pagrus auratus) in a temperate no-take marine reserve

机译：超声波跟踪揭示了温带不摄海洋保护区中鲷鱼（Pagrus auratus）的多种行为模式

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摘要

Interactions between marine reserve populations and non-reserve populations of exploited fishes have generally been modelled using simplistic assumptions about behaviour. Consequently, there is a recognized need for better information on fish movement behaviour at the appropriate spatial scales to generate more realistic interaction models. Automated ultrasonic tracking of marine fish, applied in this study, offers the potential to continuously track individuals for periods of up to several years within the study area. Snapper (Pagrus auratus) (FL: 33-68 cm) were surgically implanted with individually coded ultrasonic transmitters to monitor their movement within the Cape Rodney to Okakari Point Marine Reserve in northeast New Zealand from October 2001 to September 2002. The range of movement patterns observed includes some fish resident for the entire tracking period, while others were more mobile. Of the latter group, some fish left the array permanently while others returned after up to 83 days of continuous absence. Nearly all fish showed some level of site fidelity for varying periods of the time they were tracked. Fish activity peaked in the summer, when highest densities are known to occur. Results suggest that snapper behaviour is variable, and that patterns of habitat utilization vary between fish and also seasonally. Such a complex range of behaviours may be a key component for achieving desirable outcomes for both conservation and fisheries in marine reserves.
机译：海洋保护区种群和非保护区鱼类种群之间的相互作用通常采用关于行为的简单假设来模拟。因此，人们认识到需要在适当的空间尺度上提供有关鱼类运动行为的更好信息，以产生更现实的相互作用模型。在这项研究中应用的自动超声波跟踪海水鱼类提供了在研究区域内连续跟踪个体长达数年的潜力。鲷鱼（Pagrus auratus）（FL：33-68 cm）手术植入了单独编码的超声波发射器，以监视它们从2001年10月至2002年9月在新西兰东北部的罗德尼角至Okakari Point Marine Reserve内的运动。运动模式的范围观察到的鱼包括整个追踪期内的一些鱼类，而另一些则更易流动。在后一组中，一些鱼类永久性地离开了鱼群，而其他鱼类在连续缺水长达83天后返回。几乎所有鱼类在被追踪的不同时间段内都表现出一定程度的部位保真度。当已知密度最高时，鱼类活动在夏季达到峰值。结果表明，鲷鱼的行为是可变的，鱼类和季节之间的栖息地利用方式也各不相同。如此复杂的行为范围可能是为海洋保护区的保护和渔业取得理想成果的关键组成部分。

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