8 1/2 foot thresher on bass gear

[Van]

I'm trying to find a reference to give its weight vs length. No luck so far. But I found this:

Common threshers are dark green (More in Pacific side)
Bigeye threshers are brown and
Pelagic threshers are generally blue. (This one looks blue)

and

The pelagic thresher is the smallest of the thresher sharks, averaging 3 m (10 ft) in length and 69.5 kg (153.3 lb) in weight.

So if a 10 footer is 153 lbs, thats 15.3 pounds per foot X 8.5 I got would be 130 pounds.

Does that seem right ????