Seasonal patterns and individual differences in the calls of male haddock Melanogrammus aeglefinus
Seasonal patterns and individual differences in the calls of male haddock Melanogrammus aeglefinus
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DOI：
10.1111/jfb.12740
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发表时间：
2015-09-01
影响因子：
2
通讯作者：
Hawkins, A. D.
中科院分区：
文献类型：
--
作者：
Casaretto, L.;Picciulin, M.;Hawkins, A. D.
在圈养条件下观察到的雄性黑线鳕全年发声活跃，但在2月至4月产卵季节达到最高发声水平。在这个季节，最常见的声音类型包括规则重复的、几乎相同的双脉冲敲击(KN)。这些序列大多与一种特定的行为模式有关，即巡逻显示，此前已表明，这在领地和产卵方面发挥着关键作用。两种不同的统计方法证明了三个雄性个体产生的双脉冲KN的差异，这表明这些差异可能使个体雄性被其他鱼类区分，可能传递与发送者健康相关的信息。叫声的某些方面发生了季节性变化，或许反映了观察到的击鼓肌肉质量的变化。当使用被动监听来定位麦长管海龟产卵场时，声音的物理特征可能表明个体雄鱼与产卵的距离有多近。
Haddock Melanogrammus aeglefinus males observed in captivity proved to be vocally active throughout the whole year, although the highest levels of vocal activity were reached in the spawning season between February and April. During this season, the most common type of sound consisted of sequences of regularly repeated, almost identical, double-pulsed knocks (KN). These sequences were mostly associated with a particular behaviour pattern, the patrolling display, which has previously been shown to play a key role in territoriality and spawning. Differences in the double-pulsed KNs produced by three individual males were demonstrated by two different statistical methods and it is suggested that these differences may allow individual males to be discriminated by other fish, perhaps conveying fitness-related information on the sender. Some aspects of the calls changed seasonally, perhaps reflecting observed variations in the mass of the drumming muscles. When using passive listening to locate M. aeglefinus spawning grounds, the physical characteristics of the sounds may indicate how close the individual males are to spawning.