Surely like a string instrument a thiner string (or in this case line) gives off a higher frequency than a thicker string that gives off a lower note?? Which is better I do not know? A lower frequecny = a longer wavelength that will travel futher in water I think. And thus a higher frequency will travel shorter but be more intense.
Nice one Ben. I hadn't considered different sound wavelengths and distances travelled quite yet. Sound vibrations obviously travel more quickly (the speed of sound +plus some because they're in water) than the vibrations created by the line (or a lure!), so it is always going to be the fastest giveaway for a fish to the location of the lure. No doubt you're right about them feeling the sound waves (and hearing them between certain minimal (low) frequencies - research Dicentarchus Labrax ears) and being able to pinpoint their direction. The line (or lure's) 'movement' vibrations will actually be felt later when they reach the fish having travelled more slowly. It gets a little off topic when I/we start considering lure noise/rattles and sound in water though... Like Mike said earlier, real can of worms.
I'm not sure if we can look at the movement
vibration waves the same as sound
vibrations waves as they move though the water? It must almost be the opposite
of sound in that more intense movement vibrations (higher frequency) actually travel FURTHER through water because of their intensity - while a lower frequency 'movement' wave travels less far because it is more easily diluted ('diluted' isn't the word but I'm not actually that scientific)? This is the whole point of vibration baits!? And this is the opposite of sound waves - where the longer wavelengths travel further through water. I may be totally wrong about all of that though as I don't quite understand myself how they CAN be different?! - they're both 'waves'. Is there a certain wave frequency (somewhere between a low frequency noise wavelength and a long 'movement' wavelength (very, very, very low frequency)) that travels the furthest through water? This would explain the above scenario.
Its a tricky one to get your head around. Sound is ultimately just a wave that we pick up in our ears. Under water, if we had the ability to 'feel' waves through our bodies, then 'hearing (as we know it) isn't actually necessary - which is why I assume Bass (only repeating what I've read here) only 'hear' a very small span of (low) frequencies, but can 'feel' almost any wave frequency. They really don't need their ears! ...although saying that, they still have them, so either they're still evolving or they DO need them for something.
Line noise... all I can deduce so far is that they probably do feel