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首页> 外文期刊>Aquatic Biology >Sound production by red hind Epinephelus guttatus in spatially segregated spawning aggregations
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Sound production by red hind Epinephelus guttatus in spatially segregated spawning aggregations

机译：在空间上分离的产卵集合体中，红色后肢的Epinephelus guttatus产生声音

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ABSTRACT: Many fishes, including groupers, produce sounds associated with mating behavior; recording and analyzing the occurrence of these sounds can provide long time-series records of grouper use of spawning habitat. Red hind Epinephelus guttatus sound production was recorded on spawning aggregation sites off the west coast of Puerto Rico and at Mona Island, Puerto Rico. Audio-video recordings were used to identify a species-specific sound produced by male red hind, most commonly during territorial patrols, and also during interactions with females. This sound is low in frequency (50 to 400 Hz) and consists of a series of pulses repeated at a variable rate. Long-term acoustic recorders were placed off the west coast of Puerto Rico at Abrir La Sierra and at Mona Island to record the timing of red hind sound production from January through March. Red hind sounds were detected at all times of the day, with peaks in sound production just before dusk. Monthly peaks in sound production were evident in each time series, but the monthly peak in sound production at Abrir La Sierra was 6 d later than the peak at Mona Island, suggesting that the timing of spawning of these 2 aggregations, while on a lunar schedule, was not broadly synchronized during this time period. This research lays the groundwork for both long-term monitoring and mapping of red hind spawning sites that will be useful for managing spawning aggregations, especially in remote areas.
机译：摘要：许多鱼，包括石斑鱼，都会发出与交配行为有关的声音;记录和分析这些声音的发生可以提供长时间的石斑鱼产卵栖息地记录。在波多黎各西海岸外和波多黎各的莫娜岛上的产卵聚集点记录了红色后肢的产卵声音。音频视频记录被用来识别雄性红后代产生的特定物种的声音，最常见的是在领土巡逻期间以及与雌性互动时产生的声音。该声音的频率较低（50至400 Hz），由一系列以可变速率重复的脉冲组成。长期的录音机放置在波多黎各西海岸的Abrir La Sierra和Mona岛上，以记录从一月到三月产生红色后声音的时间。在一天中的所有时间都检测到红色后背的声音，并且黄昏之前声音的产生达到峰值。在每个时间序列中，声音产生的每月峰值都明显，但是Abrir La Sierra的声音产生的每月峰值比Mona岛的峰值晚6 d，这表明这两个集合的产卵时间是按农历时间表，在此期间未广泛同步。该研究为红色后代产卵场的长期监测和制图奠定了基础，这将有助于管理产卵聚集，特别是在偏远地区。

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