Data were collected in the Texel-Oudeschild harbour on Texel in the Netherlands, using a SoundTrap ST600 (Ocean Instruments, New Zealand, sensitivity -177 dB/V re 1 uPa) deployed from 3 September to 9 September 2024 with continuous recording. The recorder was mounted on a floating pontoon in the harbour, 1 m below the water surface. The dataset contains the metadata and the annotations for 10 hours, randomly sampled across the week. The annotations are targeted to a sound assumed to be from a fish species and were done using the software Raven Pro 1.6 (Cornell Lab of Ornithology).