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首页> 外文期刊>Marine ecology progress series >Snapper Pagrus auratus (Sparidae) home range dynamics: acoustic tagging studies in a marine reserve
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Snapper Pagrus auratus (Sparidae) home range dynamics: acoustic tagging studies in a marine reserve

机译：鲷鱼Pagrus auratus（Sparidae）家庭范围动态：海洋保护区中的声学标签研究

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摘要

The home-range size and location of reef-associated snapper Pagrus auratus: Sparidae were investigated by use of a radio acoustic-positioning telemetry (RAPT) system. Tags were surgically implanted in 5 snapper that were subsequently monitored every minute for a period of 5 mo, and then intermittently over another 7 mo. Site fidelity was high amongst these fish, with home ranges not exceeding 650 m in diameter or 139 600 m~2 in area. Eleven other snapper received tags by feeding and were tracked for periods of up to 2.5 d. Site fidelity was also high for these fish, with standardised estimates of home-range size not differing between the 2 groups. Home ranges overlapped considerably, indicating that the fish were not territorial. The location of the home ranges generally remained stable throughout the entire tracking period, although 1 fish relocated its home range by ～220 m. A new method of home-range estimation was developed, which matched the level of detail provided by the RAPT system, to directly estimate the time spent in an area. The relevance of this method and the residential behaviour of these fish are discussed, with reference to the general understanding of animal behaviour, previous investigations into snapper movement, and the selective capacity that may be imposed by marine reserves on fish behaviour.
机译：通过使用无线电声定位遥测（RAPT）系统研究了与珊瑚礁相关的鲷鱼Pagrus auratus：Sparidae的家庭范围大小和位置。将标签通过外科手术植入5个鲷鱼中，随后每分钟进行5个月的监测，然后在另外7个月内进行间歇性监测。这些鱼类的部位保真度很高，其家境直径不超过650 m或面积不超过139 600 m〜2。其他11个鲷鱼通过进食获得标签，并被跟踪长达2.5 d。这些鱼的现场保真度也很高，两组的家庭范围大小的标准化估计没有差异。本垒重叠很多，表明该鱼不属于领土。尽管有1条鱼将其归巢范围移至了约220 m，但在整个跟踪期间，归巢范围的位置通常保持稳定。开发了一种新的家庭距离估计方法，该方法与RAPT系统提供的详细程度相匹配，可以直接估计在某个区域花费的时间。讨论了这种方法的相关性以及这些鱼类的栖息行为，并参考了对动物行为的一般理解，先前对鲷鱼运动的调查以及海洋保护区可能对鱼类行为施加的选择性能力。

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