A report on the 0:N:P ratios of Philippine and adjacent waters / Teodoro G. Megia and Ricardo G. Lao

By:

Megia, Teodoro G

Contributor(s):

Lao, Ricardo G [author]

Material type: Article

ArticlePublisher: Quezon City, Philippines : Bureau of Fisheries and Aquatic Resources , 1955Content type:

text

Media type:

computer

Carrier type:

online resource

ISSN:

2672-2836 (Online)

Subject(s):

Online resources:

Online access

In: Philippines. The Philippine Journal of Fisheries Volume 3, Issue no. 1 (January - June 1955), page 55-64Abstract: The composition of sea water in the marine environment with respect to nitrogen and phosphorus is known to be regulated in a large measure by the growth and activity of organisms. The cycle of synthesis and decomposition involves the absorption of these nutrients by growing plants and the release upon decay of their tissues. The first phase takes place within the photosynthetic zone, and the second phase largely in the “zone of decay” below this productive zone. Oxidative processes during the decomposition phase entail the utilization of oxygen which, as a by-product of the synthesis phase, is conditioned by the oxygen exchange between the atmosphere and the surface layer of water with which it is in contact. In the underlying zone of decay the amounts of dissolved oxygen and the nutrient salts can be accounted for by the mineralization of organic matter and the addition of new supplies of these materials due to water circulation.

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Holdings
Item type	Current library	Collection	Call number	Vol info	Status	Date due	Barcode
Journal Article	NFRDI Central Office NFRDI KMRC Indexed Materials Collection	Electronic		Volume 3, Issue no. 1 (January - June 1955), page 55-64	Available		IMC000031
Journal	NFRDI Central Office NFRDI KMRC Institutional Repository Collection	Electronic	SH 1 .B9524 1955 vol. 3 no. 1 (Browse shelf(Opens below))	Volume 3, No. 1 (January - June 1955)	Available		IRC00005

Includes bibliographical references

The composition of sea water in the marine environment with respect to nitrogen and phosphorus is known to be regulated in a large measure by the growth and activity of organisms. The cycle of synthesis and decomposition involves the absorption of these nutrients by growing plants and the release upon decay of their tissues. The first phase takes place within the photosynthetic zone, and the second phase largely in the “zone of decay” below this productive zone. Oxidative processes during the decomposition phase entail the utilization of oxygen which, as a by-product of the synthesis phase, is conditioned by the oxygen exchange between the atmosphere and the surface layer of water with which it is in contact. In the underlying zone of decay the amounts of dissolved oxygen and the nutrient salts can be accounted for by the mineralization of organic matter and the addition of new supplies of these materials due to water circulation.

English eng

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