X, D, 5 Day: Culture of the Bangos, or Milkfish 313 



and could be purchased for 800 pesos. The owner says that the 

 blue crab, Neptunus pelagicus, and hawks catch some of the small 

 fish. 



SUBIC, POND NO. G 



Pond No. 6 is the property of Mr. Pedro Villamor, with an area 

 of 3 hectares. It yields 600 pesos per annum. 



SUBIC, POND NO. 7 



Mr. Pedro Villamor also owns pond No. 7. It has an area 

 of about one hectare. The two ponds, numbers 6 and 7, are 

 considered by the owner to be more profitable because there is 

 a mud bottom, and the fish eat the small algae growing on the 

 bottom. The algal growth is found also at the surface. The 

 1-year-old fish are 60 centimeters long and sell at 50 centavos 

 each. On the day I visited this pond. May 17, 1915, the owner 

 had 10,000 fish, about 5 centimeters long and 21 days old, in a 

 small pond about 9 by 12 meters. These were to be placed in 

 the pond in June. The ponds of Subic numbered 5, 6, and 7 

 are in no danger of flooding by the river and so are stocked early. 



Regarding feeding, the owner of ponds Nos. 5, 6, and 7 says 

 the fish do not eat for about two or three hours while the water 

 is entering the pond, as they are trying to find a way of escape 

 while the water is in great commotion. Otherwise they eat at 

 any time, either night or day. 



CONCLUSION 



At the beginning of this report it is stated that certain dif- 

 ficulties in the culture of bangos have been encountered at Subic 

 and at Iba, Zambales, especially at the latter place. The chief of 

 these was thought to be due to the unfavorable conditions present 

 that would not permit the necessary growth of algae for food. 

 It was thought that because of the sandy nature of the soil the 

 algae would not grow. It was held to be necessary to have a 

 muddy bottom for a sufficient algal growth. And it was insisted 

 by some fish growers that it is necessary at the time of removing 

 the large fish for market not only to empty the pond of water, 

 but to leave it empty long enough to dry the bottom, and even to 

 scrape the bottom thoroughly. There is, however, a difference 

 of opinion about the character of the bottom. Some engaged in 

 fish culture hold that a clean sandy bottom is necessary, and 

 others contend that a mud bottom is much better. In this con- 

 nection it is interesting to note that those holding these opposite 

 views get what seem to them to be satisfactory results. But the 



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