. Condition and extent of the oyster beds of James river, Virginia. Oyster culture. 68 OYSTEE BEDS OF JAMES RIVER, VIRGINIA. It is necessary, therefore, in the discussion of the productiveness of this part of the James River oyster grounds, to adopt a different standard of productiveness. The whole oyster product of whatever size is involved in the question of the present value of the beds, whereas in the areas previously discussed the- market oysters only could be considered, and the quantity of young was of interest merely as indicating the probability of the beds being maintained or replete
. Condition and extent of the oyster beds of James river, Virginia. Oyster culture. 68 OYSTEE BEDS OF JAMES RIVER, VIRGINIA. It is necessary, therefore, in the discussion of the productiveness of this part of the James River oyster grounds, to adopt a different standard of productiveness. The whole oyster product of whatever size is involved in the question of the present value of the beds, whereas in the areas previously discussed the- market oysters only could be considered, and the quantity of young was of interest merely as indicating the probability of the beds being maintained or repleted. In the discussion which follows here the maximum potential yield is considered as the production in excess of that which will give the tonger 4 bushels of oysters per day of tonging, not taking into con- sideration the time emplo}^ed in culling out the shells and returning them to the beds. This part of Ground Xo. 1 includes all oyster rocks on the left bank of the James River, from the mouth of Warwick River to the upper limit of oyster growth, near Deepwater Shoals Light-House. The following is a summary of the extent of the several rocks and the barren bottoms embraced within the Bavlor lines: Areas of Oyster Growth, Public Ground Xo. Deep Creek. 1 Warwick County, Above. It will be noticed at once that the proportion of barren bottom to that actually included in the rocks as determined by the survey is somewhat smaller than in the grounds previously discussed, consti- tuting about 53 per cent of the total. The depleted bottom, which, with practically no exceptions, is at present and potentially valueless, covers an additional 12 or 13 per cent, so that, assuming all the rest to be at present productive or capable of becoming so in the future, the oyster bottom covers about 35 per cent of the whole. The following table exhibits the estimated total content of the sev- eral rocks and their subdivisions at the opening of the oyster season on September 15, 1909:. Please note t
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