Fig. 5: Integrated application of underwater detection.

a The conceptual diagram of an ocean monitoring system based on biomimetic optical fiber neuromast (BOFN) (HFS high-frequency acoustic signals, LFS low-frequency water flow disturbance signals). b The application scenario diagram showing the model shark emitting sound waves at different locations as it swims. c The acoustic signals detected by the motorized fish during the movement of the model shark. d The water flow mechanical stimulation signals detected by the motorized fish as the shark moves. e The acoustic signals recorded by both the hydrophone and BOFN, demonstrating that BOFN exhibits higher sensitivity. f Reconstructed cross-section image of jellyfish objects obtained through ultrasound imaging by the bionic fish. g Real-time changes in optical attenuation of the BOFN attached to the moving motorized fish, reflecting the fish’s movement at various speeds.