732 



KEPORT OF COMMISSIONER OF FISH AND FISHERIES. 



[S] 



AURAT RIVEE AND DEPENDENCIES. 



Tears. 



1876. 



1877 



1878. 



1879. 



1880 



1881. 



^■■i 





C 3 

 MO 



S J. 

 <1 p, 



19, 974, 000 

 13,343,000 

 27, 145, 000 

 11, 173,000 

 8, 283, 000 

 11, 061, 000 



Francs. 

 21. 65 

 19.75 

 15.75 

 16.70 

 20.40 

 13.70 



t-. c8 

 Piia 



f-I^M 



cS O 



Francs. 

 432, 341 

 263, 652 

 427,841 

 186, 670 

 175, 263 

 157, 645 



TRINITY RIVER. 



1876, 



1877 , 



1878 . 

 1879 

 1880 

 1881 



133 

 115 

 154 

 135 



429 

 273 

 400 

 418 

 198 

 167 



108 



101 



79 



112 



10 30 



11 40 

 7 40 

 6 20 

 4 15 

 4 50 



2, 042, 000 

 2, 558, 000 

 2, 206, 000 

 1, 058, 000 

 257, 000 

 601, 000 



17.00 

 22.20 

 22.50 

 22.00 

 34.00 

 24.00 



31, 722 

 50, 232 

 49, 591 

 23, 330 

 8, 737 

 14, 670 



If these figures are referred to one scale, i. e., to the number of oysters 

 obtained by one dredger in an hour, the following are the results : — 



1877. 

 1878. 

 1879. 

 1880. 

 1881. 



1876. 



1877. 

 1878. 

 1879. 

 1880. 

 1881. 



AURAY RIVER. 



Oysters. 



One dredger in one hour produces 411 



One dredger in one hour produces 747 



One dredger in one hour produces 485 



One dredger in one hour produces 315 



One dredger in one hour produces 262 



TRINITY RIVER. 



Oysters. 



One dredger in one hour produces 453 



One dredger in one hour produces 453 



One dredger in one hour produces 712 



One dredger in one hour produces 566 



One dredger in one hour produces 322 



One dredger in one hour produces 444 



From the above it will be clearly seen that the beds are becoming 

 less productive; it is true that in the Trinity River the average revived 

 in 1881, but when it is considered how low the totals have been (in 1881 

 the total number of oysters dredged was only 601,000), the averages are 

 not very accurate. One portion of a bed, in fact, after remaining un- 

 dredged for several years, may yield a great quantity of oysters, and 

 thus raise the average considerably. 



