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Old 08-22-2006, 12:05 PM   #16
Fish_Eye
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Sound is important too!

Quote:
Tried wading up on a pod of bait last night to get a better look .. I move ,, it moves,,I move ,,it moves..
Tagger you're observations show the schooling ability of bait when they sense (feel/hear) a threat.

Baitfish such as herring, alewives and anchovies are considered “hearing specialists” because their swimbladder, lateral line, and inner ear are all connected and they also have a pair of prootic auditory bullae which acts as pressure-to-motion transducers. This helps explain why when one moves they all move simultaneously. Recently they proved that American Shad can hear ultrasound of 180 kHz and Gulf Menhaden also have ultrasonic hearing. What does this all mean? Don’t drop the tackle box in your tin boat when you’re trying to snag bait, or don’t crank up the Aerosmith tunes or you’ll drive away the fish.

Stripers have medium hearing yet their lateral line can determine the direction of the current and the presence of nearby objects, as well as sense vibration. Their lateral line functions best within the zone nearest the sound source, the inner ear performs best in the far edges of the near field and outward. Their lateral line does not respond directly to the acoustic-pressure component of sound fields. In the case of vibrating sources, the lateral line is only directly stimulated at very short distances from the source where the generated acoustic field behaves like an incompressible flow. Unless your lure or live bait offering is close to the striper it is likely to depend on its inner ear to detect and direct it to the source of the sound. Therefore, in dirty water a popper, spook, or lure that creates a lot of surface splashing and vibration will be first heard, and then “felt” as the striper locks in on it and then strikes.

Bait such as herring, alewives and anchovies have a distinct hearing advantage over stripers however, at periods of low light, and changing lighting conditions like dusk and dawn, the striper’s excellent vision gives them an upper hand (fin).

And yes, stripers spend lot of their time looking up for prey.
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