OYSTER BEDS OF JAMES RIVER, VIRGINIA. 



35 



presently and prospectively productive. The following data were 

 obtained from the examinations made: 



Details of Examination op Kettle Hole Rock. 



Station 

 num- 



Date of ex- 

 amination. 



Mean 

 depth 

 of wa- 

 ter. 



Character of growth 

 of market oysters. 



Oysters caught per 

 square yard. 



Estimated quantity oys- 

 ters per acre. 



ber. 



Spat. 



Culls. 



Counts. 



Seed. 



Market. 



Total. 



133 



Aug. 17,1909 



do 



do 



do 



do 



Aug. 26,1909 



do 



do 



do 



do 



do 



Aug. 17,1909 

 Aug. 18,1909 

 Aug. 26,1909 

 Aug. 17,1909 



do 



do 



do 



Aug. 26,1909 

 Aug. 18,1909 



do 



Feet. 

 10.0 

 13.5 

 11.5 

 11.5 

 9.5 

 11.5 

 11.5 

 10.5 

 8.5 

 7.5 

 8.0 

 12.5 

 17.0 

 11.0 

 11.0 

 13.0 

 11.5 

 11.5 

 11.5 

 14.0 

 16.0 





8.5 



5.0 



1.5 



.0 



.0 



5.0 



2.1 



8.1 



6.5 



7.6 



9.6 



5.0 



.7 



.9 



.0 



.4 



1.1 



.2 



7.9 



.0 



.0 



47.5 

 62.0 

 29.9 

 32.0 

 44.6 

 27.5 

 18.5 

 54.6 

 47.2 

 46.7 

 72.4 

 34.6 

 50.0 

 3.8 

 16.0 

 43.3 

 13.3 

 24.0 

 30.0 

 .0 

 .0 



10.0 

 7.5 

 7.8 

 8.0 

 .7 

 11.7 

 7.6 

 9.6 

 6.1 

 7.9 

 6.5 

 5.5 

 6.9 

 5.4 

 4.0 

 2.1 

 3.0 

 3.3 

 2.9 

 .0 

 .0 



Bush. 

 364 

 436 

 204 

 208 

 290 

 211 

 134 

 408 

 349 

 353 

 533 

 257 

 334 



31 

 104 

 284 



95 



169 



246 











Bush. 



138 



104 



108 



111 



10 



161 



105 



133 



84 



109 



90 



76 



95 



75 



55 



29 



41 



46 



40 











Bush. 

 502 



155 

 156 

 157 

 159 

 360 

 361 

 362 

 363 

 364 

 365 

 158 



do 



do 



do 



do 



do 



do 



do 



do 



do 



do 



Scattering 



540 

 312 

 319 

 300 

 372 

 239 

 541 

 433 

 462 

 623 

 333 



163 

 359 



do 



do 



429 

 106 



151 

 152 

 153 

 154 

 369 

 164 



Very scattering 



do 



do 



do 



do 



159 

 313 

 136 

 215 



286 

 



165 



do 







THOMAS POINT ROCK. 



As explained in the discussion of the preceding bed, there may be 

 some question as to the name of this one, which lies between what 

 has been called Kettle Hole Rock and Blunt Point Rock. It is 

 entirely separated from the former by a swash channel carrying 

 from 12 to 21 feet of water, but is connected with Blunt Point Rock 

 by a narrow ridge of depleted bottom. The bed lies on and about 

 two shoals which extend from the edge of the channel lying north 

 of White Shoal Light. Its extent and condition are as follows: 



Oyster Growth on Thomas Point Rock. 



Character of growth of market oysters. 



Area. 



Oysters per acre. 



Estimated 

 content of 



Seed. 



Market. 



market 



oysters. 





Acres. 

 76 

 118 

 100 

 127 



Bushels. 

 168 

 170 

 103 

 80 



Bushels. 

 11,- 

 71 

 51 

 21 



Bushels. 



8 745 



Scattering 



8,378 



Very scattering 



;>. 100 



Depleted 



2,667 







Total 



421 







24,890 











The dense growth of market oysters is in three patches, all lying on 

 or close to the shoaler parts of the bed in water ranging from 5 to 8 

 feet at low tide. The growth is sufficiently prolific (o yield to the 

 tonger about 10 bushels of marketable oysters per day. 



