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<p>The sounds produced by snapping shrimp (Alpheidae) are among the most common and dominant biological sources in shallow-water soundscapes worldwide and are closely linked to environmental variability, particularly in biodiverse coral reef habitats. In this study, a compact system was deployed at a coral reef station on the southeast coast of China to record the snap rate of local snapping shrimp over a three-month period, and the relationships between snap rate and temperature, salinity, turbidity, wind speed, chlorophyll, and dissolved oxygen were subsequently analyzed. Snaps were detected using a backpropagation network. Results showed snap rate was positively correlated with salinity and temperature but negatively correlated with dissolved oxygen and turbidity. More importantly, the permutational multivariate analysis of variance indicated a combined contribution of temperature and salinity to the variation in snap rate, revealing a critical temperature beyond which the snap rate declined with further increase in temperature. This critical temperature varied with salinity (‰; equivalent to ppt): It was observed at 28&#xa0;°C for the Low (31.40–32.78‰) and Medium (32.78–33.00‰) salinity groups but dropped to 27&#xa0;°C for the High salinity group (33.00–34.42‰). This study provides insight into the potential environmental drivers of changes in the snap rate of snapping shrimp, highlighting the synergistic contribution of these variables.</p>

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Acoustic reaction of snapping shrimp (Alpheidae) to changing environmental variables in a coral reef system

  • 期刊论文

  • 发表日期：

    2026年3月5日

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  • Yingnan Su,
  • Zhongchang Song,
  • Chichi Liu,
  • Fei Zhang,
  • Wenzhan Ou,
  • Shengyao Sun,
  • Yu Zhang

摘要

The sounds produced by snapping shrimp (Alpheidae) are among the most common and dominant biological sources in shallow-water soundscapes worldwide and are closely linked to environmental variability, particularly in biodiverse coral reef habitats. In this study, a compact system was deployed at a coral reef station on the southeast coast of China to record the snap rate of local snapping shrimp over a three-month period, and the relationships between snap rate and temperature, salinity, turbidity, wind speed, chlorophyll, and dissolved oxygen were subsequently analyzed. Snaps were detected using a backpropagation network. Results showed snap rate was positively correlated with salinity and temperature but negatively correlated with dissolved oxygen and turbidity. More importantly, the permutational multivariate analysis of variance indicated a combined contribution of temperature and salinity to the variation in snap rate, revealing a critical temperature beyond which the snap rate declined with further increase in temperature. This critical temperature varied with salinity (‰; equivalent to ppt): It was observed at 28 °C for the Low (31.40–32.78‰) and Medium (32.78–33.00‰) salinity groups but dropped to 27 °C for the High salinity group (33.00–34.42‰). This study provides insight into the potential environmental drivers of changes in the snap rate of snapping shrimp, highlighting the synergistic contribution of these variables.