Having trouble with the link 
The link is working for me. I launches a PDF file.
If you don’t have adobe acrobat reader you will need to download that first.
Should get you close but there are more than a few of us that believe those Rainy River/LOW Sturgeon are much heavier for their length than the St. Croix Sturgeon.
The sturgeon from up north are absolute sows IMO compared to the St. Croix fish.
I’m sure they are, but it gives you a range, so if you look on the low end of the range, it’ll probably get you close 
Better, IMO, than hooking one up to a scale and injuring it.
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Should get you close but there are more than a few of us that believe those Rainy River/LOW Sturgeon are much heavier for their length than the St. Croix Sturgeon.
Thats what the GIRTH part of the chart is for!
Good point. I guess it can’t get you exact, but with the length and girth, it should be pretty accurate.
I totally agree with you guys that it will get you “close”.
But… these fish swim in 2 totally different bodies of water over 300 miles apart. Water quality is different, forage base is different, water temperature is different, summer growing season is different. There are many different factors that come into play when comparing these fish.
The point I’m trying to make is that the “body shape” of the up north sturgeon is much different. When I say they are sows, they truly are sows. The girth on these fish extends much further back towards the tail than what I’ve seen of the St. Croix fish.
If you take a St. Croix fish and a Rainy River fish of equal length and equal girth, the Rainy fish will be much heavier.
Perhaps, but you also have to sit in the truck for God knows how long to catch one of those fish 
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Perhaps, but you also have to sit in the truck for God knows how long to catch one of those fish
What does sitting in the truck have to do with the perceived accuracy of a length/girth formula? 
Nothing Just saying I’m not gonna complain that our St. Croix fish are skinnier because it’s a whole lot more accessible to me than Rainy River. I could never make it up there after work on a Wednesday.
I understand where everyone is coming from. The rainy fish may have more weight on average for length, but I think its pretty accurate when the girth measurements are taken into consideration. There is a huge weight difference on an upper 40″ class fish at various girths. Although more girthy fish are comon to the north for some reason, there are still some skinny fish that will be lighter than the average fish.
The only way to see how accurate/inaccurate the chart is.. make some type of weighing apparatus and weigh a number of the larger fish. All of the large fish in my boat this year were VERY girthy, but I have caught long skinny fish in the past. I am sure its likely something due to growth rates that attribute to length/girth ratio’s in the long run. My guess would be is St Croix sturgeon grow much faster with the longer period of warmer water, and a very good forage base of shad(endless), and crawdads.
I will strongly agree with RW on one point.. its an awesome fishery right out our back door. I can go fishing on a good day and drive there, catch 5-40 fish, and have my boat back on the trialer by the time your getting close to rainy! An average smaller girth or not, they fight like heck once they hit the mid 30″ range, and by the time they hit the 50″ range they are nothing but power and speed, the 60+ fish will make you remember them for a few days with your arms still worn out.
My average trip expense.. $12 truck gas, $2.50 boat gas, $10 bait, $2.50 sandwich, $2 pop… or about $30 I can go fishing 30 minutes from home and have a blast!
Hanson I thought the same thing till last weekend 
I wish I would have measured the girth but we got her right back in the water asap after a few pics. Not your standard fish from the Croix but you can never rule out the river for big fish.
Hey! Hey!
Now thats a fatty! Definitely not your “typical” St. Croix Sturgeon. That sucker has some girth waaaaaayyyyy back into the tail.
I know that spot!!!! It was dead Monday nite!!! 
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