m 



PEOPAGATION OF PENOBSCOT SALMON IN 1879-'80. 



727 



From this total we deduce the following averages : 



Average number of eggs per mother fish 11, 141 



Average number of eggs per pound weight of mother fish 745 



Average number of eggs per pound of spawn 2, 981 



The weight of males was not recorded. It was intended to weigh them 

 all at last, but as they were chafing badly they were turned down the 

 brook November 13, with a few exceptions, and we saw but few of 

 them afterwards; and the ice having become troublesome, we did not 

 think it worth while to try to catch them. (Mr. Buck's notes.) 



Mr. Buck's success in impregnation of the eggs was equal to the best 

 I ever knew. The following estimate comes, I think, pretty near the 

 facts: At the time of packing the eggs there were picked out 3,408 un- 

 impregnated eggs. If we assume that half of all those previously taken 

 out were unimpregnated, we have a total of 7,329 unimpregnated eggs, 

 equal to 3.46 per cent., from which it follows that 96.54 per cent, were 

 impregnated. 



5. — Transfer and hatching of the eggs. 



Of the total number of eggs, 211,692, there were picked out 11,192, 

 and the remainder, 200,500, distributed among the subscribers, as in 

 subjoined Table II. There died in transitu 8,673, of which 8,000 hatched 

 out in the moss, being too near their maturity for transportation. There 

 were further losses of 4,268 before hatching, and 7,011 after hatching, 

 leaving 180,264 healthy fish which were turned free. Thus of the orig- 

 inal number 5 per cent, were rejected before shipping; 4 per cent, were 

 lost in transitu; 2 per cent, more died in the troughs before hatching; 

 3£ per cent, died after hatching, and 85 per cent, reached the feeding 

 age and were liberated. 



Appended will be found a series of tables, from I to VI, exhibiting in 

 detail the principal operations of the year, and observations noted. 



Table I. — Statement of salmon bought alive at Bucksport in 1879. 



Bate. 



Whence received. 



Weight of salmon. 



Several •weights. 



Daily summary. 



Weights. 



Date. 



1879. 

 June 10 

 10 



10 



10 



10 



10 



A. H. W 

 J.W.... 



H. W . . . 



P.A.... 



J.A 



R.A.... 



Pounds. 

 23,20,15,12,12,11,11,10,8.. 

 18, 12, 11J, 114, 11, 11, 104, 



104, 10, 10. 

 22, 20, 19, 13, 12, 12, 12, 11, 11, 



10, 10, 10. 

 21, 20, 19, 11, 11, 11, 10, 10, 10, 



10, 10, 10, 10, 9, 9, 9, 9, 9, 8. 



12,11,11,10,10 



20,11,10,10,9 



Lbs. 

 122 

 116 



162 



216 



54 

 60 



Lbs. 

 13.55 

 11.60 



13.50 



11.37 



10.80 

 12.00 



Lbs. 



Lbs. 



1879. 



30 12. 17 June 10 



