View Single Post
Old 11-20-2011, 07:45 PM
MadisonBoats's Avatar
MadisonBoats MadisonBoats is offline
Senior Member
Join Date: Nov 2008
Location: Norris, TN
Posts: 2,102

Originally Posted by kentuckytroutbum View Post
From thermodynamics, air will move from hot to cold, high pressure to low pressure. What that means is that an east wind indicates the location of a low pressure system somewhere to the west of your location. Fish somehow sense an approaching low pressure system, stop feeding, and move to deeper water. Since low pressure systems tend to move generally toward the northeast, and spin counterclockwise, how do the fish know?

I've never understood how fish can sense an approaching low, and run for cover. Water has a uniform pressure as depth increases. How can a drop (or dropping) in air pressure cause this effect?

I hope I can help elaborate on your post with my personal view of the topic. That idea generally applies to deep water or water more than 10' deep. Also; it depends on a many conditions that influence the properties of water (salinity, temperature, altitude, moon phase, oxygen content, etc.). Shallow water is very impressionable and atmospheres of pressure can be amplified in shallow water. The speed the changes occur influence the fish's ability to feed and not to feed. Kind of like our ability to adjust to altitude. Also; high pressures usually move in steadily and move out steadily. In contrast; low pressures move in rapidly and with extreme changes in atmospheres (barometric pressure). This is my opinion on my research and from digesting my fishing reports as a whole.
“Every human has four endowments- self awareness, conscience, independent will, & creative imagination.
These give us the ultimate human freedom... The
to choose, to respond, to change.”

Reply With Quote