Variability in the mating calls of the Lusitanian toadfish Halobatrachus didactylus: cues for potential individual recognition
Variability in the mating calls of the Lusitanian toadfish Halobatrachus didactylus: cues for potential individual recognition
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DOI：
10.1111/j.1095-8649.2008.01974.x
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发表时间：
2008-10-01
影响因子：
2
通讯作者：
Vasconcelos, R. O.
中科院分区：
文献类型：
--
作者：
Amorim, M. C. P.;Vasconcelos, R. O.
在塔霍河口的码头上记录到筑巢的蝠鲼科 Halobatrachus didactylus 雄性的交配声音（船哨）。对 13 名雄性鱼（每条鱼有 16 个船哨）进行了 20 项声学特征分析。所有变量的男性间变异均大于男性内变异，并且个体间差异显着。判别函数分析 (DFA) 考虑其中的七个变量，将 90-100% 的船哨分配给正确的个体，具体取决于模型中包含的男性数量和每个男性的声音数量。一致地最好区分个体的声学特征是船哨中间音调部分的主导频率（P-2）和主导频率调制，其次是P-2脉冲周期、幅度调制和声音持续时间。这些结果表明基于声音线索进行个体识别的可能性。(C) 2008 作者杂志汇编 (C) 2008 不列颠群岛渔业协会
The mating sounds (boatwhistles) of nesting batrachoidid Halobatrachus didactylus males were recorded in the Tagus Estuary from piers. Thirteen males with 16 boatwhistles per fish were analysed for 20 acoustic features. All variables showed larger between-male than within-male variation and differed significantly among individuals. Discriminant function analyses (DFA) considering seven of these variables assigned 90-100% of boatwhistles to the correct individual, depending on the number of males and number of sounds per male included in the model. The acoustic features that consistently best discriminated individuals were the dominant frequency of the middle tonal segment of the boatwhistle (P-2) and dominant frequency modulation, followed by P-2 pulse period, amplitude modulation and sound duration. These results suggest the possibility of individual recognition based on acoustic cues.(C) 2008 The Authors Journal compilation (C) 2008 The Fisheries Society of the British Isles