12 Report of the Board of Shell Fish Commissioners. 



For a detailed account of the investigations carried on to deter- 

 mine the value of each of the above factors and to develop methods 

 of securing the information needed concerning the condition of 

 oyster bottoms, reference should be made to the First Report of the 

 Shell Fish Commission, pages 32 to 69. 



Minimum livelihood of Tougman. 

 Minimum livelihood of Dredger.. 



.$ 277.75 

 . 1,S36.25 



Average prices received for oysters per bushel. 



Minimum livelihood expressed in bushels of oysters : 



.$ .GO to $1.00 



Price. 



$ .60 



.75 

 1.00 



Tongmen. 



402 bushels. 

 370 bushels. 

 27S bushels. 



Dredgers. 



3,066 bushels. 

 2,448 bushels. 

 1,S36 bushels. 



Number of marketable oysters, per bushel 329 



Minimum livelihood expressed in number of marketable oysters: 



Price. 



$ .60 



.75 



1.00 



Tongmen. 

 151,998 oysters. 

 121,730 oysters. 

 91,462 oysters. 



Dredgers. 

 1,00S,714 oysters. 

 805,392 oysters. 

 604,044 oysters. 



Number actual working days in tonging season 100 



Number actual working days in dredging season 58 



Unit of tonging operations the "grab" * 



Average area of oyster bottom covered, per "grab," with hand tongs : 



Depth of Water. Area Covered. 



1 to 



5 feet. 



feet. 



7 feet. 



8 feet. 



9 feet. 



10 feet. 



11 feet. 



12 feet. 



13 feet. 



14 feet. 



15 feet. 



16 feet. 



17 feet. 



18 feet. 



19 feet. 



20 feet. 



.79 sq. yd. 



.66 sq. yd. 



.55 sip yd. 



.46 sq. 



.40 sq. 



.35 sq. 



.31 sq. 



yd- 

 yd. 

 yd. 

 yd. 



- 14-foot shafts. 



.40 sq. yd. 



.36 sq. yd. 



.33 sq. yd. 



.30 sq. yd. 



.28 sq. yd. 



.25 sq. yd. 



.23 sq. 



.21 sq. 



.19 sq. 



yd. 

 yd. 

 yd. 



22-foot shafts. 



Area cpvered, per "grab," with patented tongs 1 to 1.3 sq. yd. 



*A "grab" is made when the tongs are placed upon the bottom, with the 

 heads open, and. the shafts closed once. 



