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Old 06-23-2020, 09:27 AM   #1
ttaylor21
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High Pressure

What is the best way to catch fish when there is a high pressure system hovering over where you are fishing? Is it true that fish don't bite during high pressure?
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Old 06-23-2020, 10:21 AM   #2
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They still have to eat, but since their swim bladder is compressed a bit by the higher pressure, it makes them a little less buoyant and they are more comfortable in a bit deeper water. Fish the guts and drains instead of the open flats during a high pressure pattern.
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Old 06-23-2020, 11:00 AM   #3
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There was a good discussion on this a while back. Sharkchum had some pretty good thoughts on this and the thread grew fairly rapidly... Wonder if you could revive that thread.. Sitting dentist office or I would search myself...

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Old 06-23-2020, 11:12 AM   #4
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Found it: "I'll try to explain. The "low means slow" is wrong. I don't know where you read that, but whoever wrote it must be smoking crack. Barometric pressure is simply " the weight of air". Imagine if you will a 300lb bean bag strapped to you body, you could still move around, you could still eat, but you wouldn't feel like doing anything because you would be so uncomfortable. The fish feel the same way when the pressure is high. A high or rising barometer puts pressure on the fish's swim bladder making them uncomfortable and instead of feeding they spend there time trying laying around. Right before a front hits the pressure drops the lowest and the fish are actively feeding, after a front the pressure remains high for 3 or 4 days and the fish become lethargic, when the pressure returns to normal the fish become active again. "

Thanks...
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Old 06-23-2020, 12:19 PM   #5
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Quote:
Originally Posted by ttaylor21 View Post
What is the best way to catch fish when there is a high pressure system hovering over where you are fishing? Is it true that fish don't bite during high pressure?
Depends on the fish. As mentioned fish with bladders are more affected by high pressure. Flounder don't have swim bladders and therefore aren't as affected. I believe reds are not as affected by HP as trout. Most fish will move into deeper water. I've caught fish with high pressure I just fished the stronger current periods and slowed down the presentation.
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Old 06-23-2020, 02:59 PM   #6
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tarpon ??

Quote:
Originally Posted by ttaylor21 View Post
Found it: "I'll try to explain. The "low means slow" is wrong. I don't know where you read that, but whoever wrote it must be smoking crack. Barometric pressure is simply " the weight of air". Imagine if you will a 300lb bean bag strapped to you body, you could still move around, you could still eat, but you wouldn't feel like doing anything because you would be so uncomfortable. The fish feel the same way when the pressure is high. A high or rising barometer puts pressure on the fish's swim bladder making them uncomfortable and instead of feeding they spend there time trying laying around. Right before a front hits the pressure drops the lowest and the fish are actively feeding, after a front the pressure remains high for 3 or 4 days and the fish become lethargic, when the pressure returns to normal the fish become active again. "

Thanks...
fish go on a hard feed when the pressure is rising or dropping, the standing high is the slower bite. best to go deep on high pressure.
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Old 06-23-2020, 03:58 PM   #7
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So, a high pressure system means the air weighs more and pressed harder on the water making some fish at some depths (presumably very shallow depths) more uncomfortable, right? So as discussed, some fish tend to migrate to deeper water. At what water depth does the effect of a high pressure system lose its punch (I know, it depends on how high the pressure is)? However, because water doesn't really compress, or if it does, it's so minor a fish should be able to 'maintain' its comfort level fairly easily by moving around just a bit. Thus, it shouldn't be 'uncomfortable' any longer and, in theory should feel like feeding.....right?
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Old 06-23-2020, 04:03 PM   #8
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tarpon google your friend

several articles to help.

https://www.google.com/search?source...4dUDCAk&uact=5
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Old 06-23-2020, 04:26 PM   #9
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I place very little value on barometric pressure as it relates to fishing. My time is better spent focusing on the weather deltas, wind, tides, structure, and bait movements.

Swim bladders are regulating mechanism for hydrostatic pressure. Hydrostatic pressure is hundreds of times greater than atmospheric pressure. To believe that barometric pressure change impacts a fish is quite a stretch when you consider the considerable water pressure changes that occur from being in deeper water vs shallow water (e.g. 10 ft of water vs 2 ft of water). It's hard to fathom how an atmospheric change would be felt when hydrostatic change is so much greater.

Kind of anecdotal but somewhat relevant. I raised marine fish for many years. While I controlled many aspects of their environment (water temp, salinity, light/dark cycles and their duration, water quality), I could not control atmospheric pressure. I never witnessed different behavior or eating patterns from my critters during weather barometric pressure changes.

Fish eat whenever they can. They seek after and follow food. They sense changes in the seasons through length of daylight and moon cycles. Temperature changes during certain times of these seasons validates the changes they see in the light and dark/moon cycles. The tides are driven by the moon and gravity and thus those naturally coincide too.

In the grand scheme of things IMO, barometric pressure borders on insignificant.

Here is one point of view to consider in your search for information: https://midcurrent.com/science/the-pressure-myth/
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Old 06-23-2020, 05:04 PM   #10
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Quote:
Originally Posted by habanerojooz View Post
I place very little value on barometric pressure as it relates to fishing. My time is better spent focusing on the weather deltas, wind, tides, structure, and bait movements.

Swim bladders are regulating mechanism for hydrostatic pressure. Hydrostatic pressure is hundreds of times greater than atmospheric pressure. To believe that barometric pressure change impacts a fish is quite a stretch when you consider the considerable water pressure changes that occur from being in deeper water vs shallow water (e.g. 10 ft of water vs 2 ft of water). It's hard to fathom how an atmospheric change would be felt when hydrostatic change is so much greater.

Kind of anecdotal but somewhat relevant. I raised marine fish for many years. While I controlled many aspects of their environment (water temp, salinity, light/dark cycles and their duration, water quality), I could not control atmospheric pressure. I never witnessed different behavior or eating patterns from my critters during weather barometric pressure changes.

Fish eat whenever they can. They seek after and follow food. They sense changes in the seasons through length of daylight and moon cycles. Temperature changes during certain times of these seasons validates the changes they see in the light and dark/moon cycles. The tides are driven by the moon and gravity and thus those naturally coincide too.

In the grand scheme of things IMO, barometric pressure borders on insignificant.

Here is one point of view to consider in your search for information: https://midcurrent.com/science/the-pressure-myth/
Weather/wind conditions and barometric pressure are interrelated, so if you are tuned into the weather you are indirectly tuned into pressure.
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