Mathematical evaluation of behavioral deterrent systems to disrupt fish movement

摘要: Abstract Although behavioral deterrent systems, directed at exploiting fish sensory are the common place in fisheries management, little is understood about link between imposed signals (e.g., sound intensity) and resulting movements. Here, an advection–diffusion equation, incorporating a stimuli specific repulsive flux, coupled with calculation of generated stimulus field order to model movement near system. A stability analysis this then used determine effectiveness disrupt natural fish. Results laboratory experiments bubble curtain inhibit carp, Cyprinus carpio, develop verify predictions. This experimental data demonstrate that acoustic (sound pressure levels) produced by systems can be sufficient i.e. passage. In addition, sensitivity investigate how impacted changes behaviors (i.e. diffusion advection rates). coupling could find general application assessment particular sites where long term physical testing may impractical.