|
|
| I thought I had this figured out, but I’ve found many others believe differently than I do. As water cools it becomes denser. That I believe is a fact. Where I find that some people disagree is how water density affects a lure’s buoyancy. Will a bait that perfectly suspends in 65-degree water rise or sink in 50-degree water? Thanks
|
|
| |
|
| Mike: It's hard to say will probably also depend on the amount of organic and other materials in the water as well, fill a bucket with water then heat or cool to 60 place the bait in it and measure how deep it sits in the water, then take the same bucket and cool to 50 and re-measure, I really don't think you will see much of a difference but then again what do I know I enjoy Muskie Fishing
|
|
| |
|
| Depends on what kinda "shape" you're in before you topple over board as to how fast they find ye![;)] |
|
| |
|
| Hey Mike,
Water is most dense at around 39.2 degrees F or 4 degrees C. As you go either way from there water is less dense. Which means a lure should have it’s greatest buoyancy at 39.2 degrees. So a neutrally buoyant lure would be less positive as the temp goes up from 39.2. But the numbers we are looking at are extremely small. For example:
32 = density of .9998425 g/cm3
35 = density of .9999310 g/cm3
39.2 = density of .9999750 g/cm3
45 = density of .9998938 g/cm3
50 = density of .9997026 g/cm3
60 = density of .9990170 g/cm3
70 = density of .9979713 g/cm3
An extra half inch of leader material would probably have a greater effect on a lure then the density change because of temp.
That being said I have a couple Suicks that I can only get to work how I like them to work after turnover. Is that because of density or maybe I only have confidence in them at that time of the year. Problem is I try and use those baits in July and they just don’t seem to run right.
I got that density info off the following web site, check it out:
http://antoine.frostburg.edu/chem/senese/101/measurement/faq/water-...
Nail a Pig!
Mike
|
|
| |
|
| Thank you Mike. That is what I thought – the colder the water the more buoyant a lure would be. I met a few last weekend that swore their experience showed the opposite to be true. Perhaps the greater resistance of “thicker” water caused their lures to behave differently; thus their beliefs?
Thanks again |
|
| |
|
| I'm a scientist....so let me shed some more light on this:
If something floats in water, that means it displaces water so that it can float. Take a boat for example....if a boat is floating in water and you freeze the water around it and magically pull the boat out of the ice, the crater in the ice left by your boat tells you how much your boat weight. If you take that crater in the ice, fill it with water and weight the water you added, it will weight the same amount as your boat does.
The same thing happens if you fill a swimming pool all the way to the top, so that it cannot hold one more drop of water, and if you gently get into the pool and submerge yourself, the amount of water that will run over the sides of the pool will weight exactly the same as you do.
With that being said, cooler water weighs more; therefore, an object will displace less cold water, than it will warmer water. Huge freighters ride higher in the water at as they go north, and lower in the water as they move towards the equator.
As far as musky lures go, water temperature would effect bouyancy. As water gets colder, it becomes more dense, and the lure doesn't have to displace as much water to float, making a neutrally bouyant lure want to float. Warm water will make a neutrally bouyant lure want to sink because the water is less dense and the lure will begin to submerge because it cannot displace it's weight before it's totally submerged in water (sinking).
Very few lures will actually sit still in the water w/o sinking or rising at some rate. If a lure does, you're just lucky because the weight of your leader and line is enough to throw it off. So is the water temp. If you want a particular lure to be neutrally bouyant at all times, you better have a way of fine tuning it's weight.
|
|
| |
|
| One more thing to add Mike and I didn’t think of this for the original post, but all materials increase in density as they get colder. Water is the only material that actually has a decrease in density after that 39.2 degree mark.
So depending on the material a bait could become less buoyant as the temp drops, if the materials density increases faster than waters density with regard to temp. NO CLUE IF THIS IS THE CASE OR NOT. Also once you get below that 39.2 degree mark other materials continue to get an increase in density.
So now we need to get a materials list and figure density with regard to temp for the many different types of wood and plastics being used to manufacture baits. Don’t know where that could be found.
This is all just theory on my part to explain that phenomenon, if I get the chance I will at least try and compare water and air. As some materials have lots of trapped air which accounts for there boyance.
Other things that would effect density are dissolved materials in the water. I.E. salt water is more dense than fresh water. I don’t know if dissolved oxygen content would effect density, but I imagine it would. Lots of variable to think about if where going to measure things down to the .00001 grams.
I am sure that doesn’t help, but it’s more info.
Nail A Pig!
Mike
|
|
| |
|
| Thanks again Mike, I guess I understand those thoughts too – It always hurts more when you get punched on a cold day –ha-ha. [:knockout:] |
|
| |
|
| Surely the water that comes out of a full pool if you get in will be the same volume as you, not nessecarily weigh the same? If you put a 1" square block of lead in water it would displace the same amount of water as a 1" block of polystyrene (if you held it under) but the water displaced would weigh the same? |
|
| |
|
| All very scientific, but I'll bet the muskies don't care much!
Doug Johnson |
|
| |
|
| One thing I noticed this year were that alot of wood baits that cracked on me this fall. I think it wa more the fact they were frozen and i put them in the warmer water. Not all my wood baits cracked though, all my slammers came through it unscathed. |
|
| |
|
| Come on Doug you always have to come in with a reality check.
They might care if that crank bait is slowly rising on the pause or slowly sinking on the pause. Maybe, possibly, perhaps, little bit likely, OK they probably don’t really care. They do like baits that hang in there face though, you can’t talk me out of that one.
Nail A Pig!
Mike
|
|
| |
