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Vessel noise exposures of harbour seals from the Wadden Sea|海洋生态数据集|噪音污染数据集
收藏DataONE2023-04-19 更新2024-06-08 收录
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https://search.dataone.org/view/sha256:c634f90e9c576d27072d3d26767236a19912b23760668e158b4a0b238466a297
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The North Sea faces intense ship traffic owing to increasing human activities at sea. As harbour seals (Phoca vitulina) are abundant top predators in the North Sea, it is hypothesised that they experience repeated, high-amplitude vessel exposures. Here, we test this hypothesis by quantifying vessel noise exposures from deployments of long-term sound and movement tags (DTAGs) on nine harbour seals from the Wadden Sea. An automated tool was developed to detect intervals of elevated noise in the sound recordings. An assessment by multiple raters was performed to classify the source as either vessels or other sounds. A total of 133 vessel passes were identified with received levelsâ>97 dB re 1µPa RMS in the 2 kHz decidecade band and with ambient noiseâ>6 dB below this detection threshold. Tagged seals spent most of their time within Marine Protected Areas (89â±â13%, meanâ±âSD) and were exposed to high-amplitude vessel passes 4.3â±â1.6 times per day. Only 32% of vessel passes were plau..., ,
创建时间：
2023-11-29
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