110 MANGROVE SWAMPS 
but little supervision and so this item is probably very small. 
From the figures given in Tables XVI and XVII, it would appear 
that raising bakauan should be profitable. It would appear 
further that it is much more profitable to market the crop in 
Manila than where it is grown. This is brought out in Table 
XVIII, in which the cost and selling price in Bataan are shown. 
TABLE XVIII.—Cost and selling prices in Bataan of the crop of bakawan 
on 1 hectare, based on figures in Table XIII for crop 8 years old. 
SELLING PRICE. 


134,000 first-grade rajitas at 2 pesos per 1,000..:..¢2 2 ee 268.00 
234,000 second-grade rajitas at 1 peso per 1,000... 234.00 
18,000 third-grade rajitas at 2 pesos per 10,000_..-......00000022.. ae 4.00 
Stumps, 34.2 cubic meters at 2 pesos per cubic meter........................ 17.00 
otal. ‘selling price!:.2'9-. 28 a eee 523.00 
Cost of clearing, seedlings, planting, and harvesting, with interest 
one planibimip es es a ote, aS yee ee 355.00 
Wore pronts-. Se Ae ee 168.00 
PROG ET IVCAN oa. giao 6s Loo eats ae eee eee ee 21.00 
Profit per year based on original planting cost (per cent)................ 16 
If sold in Manila, it will be seen that the profit per year, based 
on the planting cost, is 32 per cent plus 5 per cent compound 
interest, which is calculated in the tables as a part of the cost. 
When the wood is sold where grown, the calculated profit per 
year is 16 per cent plus the interest on the planting cost. 
About half of the original planting cost as calculated is due 
to clearing, which is frequently not necessary, perhaps never so 
for the second crop, if the planting is done at the right time. 
Where clearing is unnecessary, the percentage of profit would 
be much greater than that calculated. 
When bakauan is planted on bare ground in shallow water, 
the roots by holding sand or mud on the area have a tendency 
to raise the level of the ground. When the land has been raised 
to about the level of high tide, the bakauan is frequently cut 
for firewood and the area made into fish ponds by the construction 
of dikes. The water in these ponds is usually brackish. In the 
Philippines, there is a considerable industry in the raising of the 
fish Chanos chanos Forskal, locally known as bangés, in such 
ponds. As the raising of fish is a very profitable business, old 
bakauan plantations are frequently converted into fish ponds. 
In many places the growing of a crop of bakauan and the sub- 
sequent use of the land for fish ponds should be an exceptionally 
profitable investment. There are large areas in Manila Bay 
where this could be undertaken. 
