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Hydrobiology of wastewater-fed man-made lotic fish culture ponds in relation to pollution physico-chemical characteristics. 6

By: Manna, N. K. 4 0 16, [, ] | [, ] |

Contributor(s): 5 6 [] |

Language: Unknown language code Summary language: Unknown language code Original language: Unknown language code Series: ; 46Edition: Description: Content type: text Media type: unmediated Carrier type: volumeISBN: ISSN: 2Other title: 6 []Uniform titles: | | Related works: 1 40 Banerjee, S.;Bhowmik, M. L. 6 []Subject(s): -- 2 -- 0 -- -- | -- 2 -- 0 -- 6 -- | 2 0 -- | -- -- 20 -- | | -- -- Sewage.;Aquaculture. -- -- 20 -- | -- -- -- 20 -- --Genre/Form: -- 2 -- Additional physical formats: DDC classification: | LOC classification: | | 2Other classification:

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Action note: In: Philippine Journal of Science Summary: Other editions:

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Item type	Current location	Home library	Collection	Call number	Status	Date due	Barcode	Item holds
Book	PLM	PLM Periodicals Section	Periodicals	Q75.P538 (Browse shelf)	Available		PER 1255T

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ABSTRACT The present investigation was undertaken with the aim to study the importance of different physico-chemical parameters of water related with recycling of organic waste through aquaculture in a man-made lotic biological sewage treatment system. Water samples were collected once a month from subsurface area of four serially made maturation cum fish ponds from September 1995 to August 1997. The levels of parameters such as water temperature, transparency, pH, dissolved oxygen, free carbon dioxide, total alkalinity, total hardness, calcium hardness, chloride ion, nitrite nitrogen, nitrate nitrogen, ammonium nitrogen, orthophosphate, biochemical oxygen demand, dissolved organic matter, and primary productivity do not significantly indicate a pollution problem. Although higher levels of carbon dioxide and lower levels of dissolved oxygen caused asphyxiation in early hours of some days, fish mortality was not observed probably due to flowing nature of water. 56

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