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Tuesday, February 07, 2006

Barometric Pressure and Fishing

Must be the season for articles on how barometric pressure affects fishing.
Two posts feature a common myth to explain why fishing seems to get better when barometric pressure drops;

The other kind of fishing pressure

A Fishing Jones link to a similar story

Both these stories trot out the apparently solid advice that it is changes in Barometric pressure detected via a fishes bladder that triggers changes in feeding habit. Trouble is there is no scientific eveidence for this theory, as can be seen here: Midcurrent

Now, to clarify something here, the anecdotal evidence is overwheming that fish often start feeding more aggressively as barometric pressure drops, this being true in both fresh and salt water. But the myth given to explain this behaviour is just that, a myth. It may be a myth that has in fact hindered us from exploring this aspect of fishes' behaviour more fully, and more accurately.


5 Comments:

Blogger Pete said...

Here's another site offering an explanation that was forwarded to me:

http://www.humminbird.com/generic.asp?ID=404

Pete
Fishing Jones

Thursday, February 09, 2006  
Anonymous Anonymous said...

I've always believed that freshwater fishing got harder on a dropping barometer when fishing for resident fish and better when fishing for spawning run fish.

Thursday, March 09, 2006  
Blogger Bishfish said...

Yea, I have to say that I have to say that I have heard the same theory regarding the difference between bite enthusiasm for spawning and 'resident' fish.
But using a vast sample of one, my diaries, I see little difference between the two.
Short answer is, I do not think there is a short answer. So much that happens underwater is a complete mystery to us who generally live above it.

Thursday, March 09, 2006  
Anonymous Anonymous said...

the links doesn't work..

Laurent from france

Sunday, May 20, 2007  
Blogger Bishfish said...

The Midcurrent link is broken, sorry about that. Will try and track the correct link down.
The other two appear OK.

Monday, May 21, 2007  

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