This was so interesting I have to share.

 

https://igfa.org/2021/02/26/hearing-in-the-underwater-world/

Great article!

According to Prof. Jimmy Liao of Fish Code Studios, one thing that makes bladed jigs so deadly is they vibrate around 30hz, which is within the lateral line's sensitivity range:

 

I was snorkeling in a clear water creek at a campground . Every laydown that looked like it should hold bass did . Anyway , I would repeatedly  tap my fingernail against my watch crystal , then bass would come out and look at my finger and watch every time , then swim back . Repeated tapping got ignored .

6 hours ago, scaleface said:

I was snorkeling in a clear water creek at a campground . Every laydown that looked like it should hold bass did . Anyway , I would repeatedly  tap my fingernail against my watch crystal , then bass would come out and look at my finger and watch every time , then swim back . Repeated tapping got ignored .

supposedly that type of sound mimics crawfish.