32 THE TARPON 



has an area of 100. It has a circumference of 

 40 which squared gives 1,600. So that the 

 square of the girth of a fish divided by 16 would 

 give the area of that section of the fish. Mul- 

 tiply the area of this section by half his length 

 and you will have the cubic volume of the fish. 



Girth 2 length 



.t ormula : x - = cubic volume 



lo 2 



The specific gravity of fish is approximately 

 1.15 so that about 25 cubic inches of fish weigh 

 29 of water or one pound. 



So that if you divide the number of cubic 

 inches in a fish by 25 you will have his weight 

 in pounds: 



_, Girth * length 1 . 



r ormula: -r x - x = weight in Ibs. 

 16 2 25 



which simplified is Girth 2 x length over 800. 



My friend says a more simple formula is: 

 i Girth 2 x 2 times length = weight. 



Tarpon must be measured when first taken 

 from the water in order to obtain their true 

 weight for they shrink when exposed to the air. 

 A heavy fish that is hung up over night will 

 stretch inches in length by the following morn- 

 ing. The length should be measured from the 

 tip of the closed mouth over the swell of the 

 fish to a line drawn between the flukes of the tail. 



