AI SearchAn assessment of nitrogen and phosphorous losses through seepage in fertilized aquaculture ponds (Record no. 9244)
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| 000 -LEADER | |
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| fixed length control field | 04555nam a2200457 a 4500 |
| 005 - DATE AND TIME OF LATEST TRANSACTION | |
| control field | 20260817163619.0 |
| 008 - FIXED-LENGTH DATA ELEMENTS--GENERAL INFORMATION | |
| fixed length control field | 171114s2012 th ad ||| 000 0 eng d |
| 035 ## - SYSTEM CONTROL NUMBER | |
| System control number | .b12143492 |
| 099 #9 - LOCAL FREE-TEXT CALL NUMBER (OCLC) | |
| Classification number | AIT Thesis no.AQ-12-02 |
| 100 1# - MAIN ENTRY--PERSONAL NAME | |
| Personal name | Perera, Anusha Dilhani |
| 245 13 - TITLE STATEMENT | |
| Title | An assessment of nitrogen and phosphorous losses through seepage in fertilized aquaculture ponds |
| 260 ## - PUBLICATION, DISTRIBUTION, ETC. | |
| Place of publication, distribution, etc. | Pathum Thani, Thailand : |
| Name of publisher, distributor, etc. | Asian Institute of Technology, |
| Date of publication, distribution, etc. | 2012 |
| 300 ## - PHYSICAL DESCRIPTION | |
| Extent | 62 leaves : |
| Other physical details | col. ill., charts |
| 490 1# - SERIES STATEMENT | |
| Series statement | Thesis ; |
| Volume/sequential designation | no. AQ-12-02 |
| 500 ## - GENERAL NOTE | |
| General note | A thesis submitted in partial fulfillment of the requirements for thedegree of Master of Science inAquaculture and Aquatic Resource Management, School of Enviroment, Resources and Development |
| 502 ## - DISSERTATION NOTE | |
| Dissertation note | Thesis (M.Sc.) - Asian Institute of Technology, 2012 |
| 520 ## - SUMMARY, ETC. | |
| Summary, etc. | The present thesis studywas conducted in three 169.42 m2earthen ponds at Asian Institute of Technology, Thailand, to investigate nitrogen and phosphorus losses through seepage during the culture of sex reversed all male Nile tilapia (Oreochromis niloticus)at 3fish per m3 during initial experiment period. There were three treatments in triplicate each: (A) nutrient losses at 0.4-0.6 m depth range (B) nutrient losses at 0.6-0.8 m depth range (C) nutrient losses at 0.8-1.0 m depth range. Total nitrogen lost to air during the experiment period was also calculated.The study showed that 6.58 % of nitrogen and 17.15 ± 1.32 % of phosphorus were lost through seepage during initial experiment period. Nutrient budget revealed that there were significant difference (P<0.05) of both total nitrogen and total phosphorusseepage in different depths.Total phosphorus seepage was significantly higher than total nitrogen seepage. Nitrogen was become zero at 1.09 m bottom depth and phosphorous seepage was at 1.12 ± 0.04 m of bottom depth. Average monthly water seepage calculated from weekly sampling, it was 19.8% or 22.71cm/month from total input water. Initial soil analyses were showed that pond bottom was consists with 46.4 ± 0.7% of clay soil with 28.74 ± 1.13 % of moisture and 1.19 ± 0.04 gcm-3of bulk density, because ofwater seepage was depended on soil characteristics.The estimated N and P budgets in both inputs showed that fertilizer was the major source of nutrient accounting for 47.3 ± 0.76% N and 50.6 ± 1.65% P and were not significantly different (P>0.05). Totalnitrogen lost air to showed 3.066 ± 0.06 % including NH3 volatilization was 2.026% at 28 °C and 7.076 ± 0.4 pH. Water column results showed 8:1 of TN and TP during the initial experiment period. The study demonstrated nutrient losses in semi-intensive Nile tilapia culture system. However observation results, references results and mass balance equation showed balance nutrient budget in semi-intensive tilapia aquaculture ponds including main nutrient losses, such as nutrient seepage, nutrient in water column, nutrient deposited on soil, total nitrogen lost to air and nutrient deposited on fish body. |
| 650 #0 - SUBJECT ADDED ENTRY--TOPICAL TERM | |
| Topical term or geographic name entry element | Fish ponds |
| General subdivision | Fertilization |
| 650 #0 - SUBJECT ADDED ENTRY--TOPICAL TERM | |
| Topical term or geographic name entry element | Nitrogen |
| 650 #0 - SUBJECT ADDED ENTRY--TOPICAL TERM | |
| Topical term or geographic name entry element | Phosphorus |
| 650 #0 - SUBJECT ADDED ENTRY--TOPICAL TERM | |
| Topical term or geographic name entry element | Seepage |
| 700 1# - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Yakupitiyage, Amararatne, |
| Relator term | Chairperson |
| 700 1# - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Gallardo, Wenresti G., |
| Relator term | Examination Committee |
| 700 1# - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Dabbadie, Lionel, |
| Relator term | Examination committee |
| 710 2# - ADDED ENTRY--CORPORATE NAME | |
| Corporate name or jurisdiction name as entry element | ADB -Japan Scholarship Program (ADB-JSP), |
| Relator term | Scholarship donor |
| 810 2# - SERIES ADDED ENTRY--CORPORATE NAME | |
| Corporate name or jurisdiction name as entry element | Asian Institute of Technology. |
| Title of a work | Thesis ; |
| Volume/sequential designation | no. AQ-12-02 |
| 856 ## - ELECTRONIC LOCATION AND ACCESS | |
| Materials specified | Full-Text |
| Uniform Resource Identifier | <a href="http://203.159.5.9/ait-thesis/detail.php?q=B01804">http://203.159.5.9/ait-thesis/detail.php?q=B01804</a> |
| 907 ## - LOCAL DATA ELEMENT G, LDG (RLIN) | |
| a | .b12143492 |
| b | mnait |
| c | j |
| 902 ## - LOCAL DATA ELEMENT B, LDB (RLIN) | |
| a | 240404 |
| 998 ## - LOCAL CONTROL INFORMATION (RLIN) | |
| Operator's initials, OID (RLIN) | 0 |
| Cataloger's initials, CIN (RLIN) | 141114 |
| First date, FD (RLIN) | m |
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| 962 ## - | |
| -- | 000:001:PDF:b1214349:001842:0:0:0:0:0:0 |
| -- | Abstract -- AIT Thesis no. AQ-12-02 |
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| 945 ## - LOCAL PROCESSING INFORMATION (OCLC) | |
| l | mnait |
| 945 ## - LOCAL PROCESSING INFORMATION (OCLC) | |
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| 945 ## - LOCAL PROCESSING INFORMATION (OCLC) | |
| l | mnarc |
| 942 ## - ADDED ENTRY ELEMENTS (KOHA) | |
| Koha item type | 20-AIT Publication |
| 942 ## - ADDED ENTRY ELEMENTS (KOHA) | |
| Koha item type | 40-Archives |
| 909 ## - LOCAL ITEMS USED | |
| Barcode | Barcode : 30050120696223 |
| CREATED | CREATED : 2014-11-17 |
| RECORD Id | RECORD # : i12826984 |
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| 909 ## - LOCAL ITEMS USED | |
| Barcode | Barcode : 30050120696355 |
| CREATED | CREATED : 2014-11-17 |
| RECORD Id | RECORD # : i12826996 |
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| 909 ## - LOCAL ITEMS USED | |
| Barcode | Barcode : 30050120400527 |
| CREATED | CREATED : 2018-03-01 |
| RECORD Id | RECORD # : i13113616 |
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| Withdrawn status | Lost status | Damaged status | Not for loan | Home library | Current library | Shelving location | Date acquired | Cost, normal purchase price | Total checkouts | Full call number | Barcode | Date last seen | Copy number | Price effective from | Koha item type |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Available for Loans | Asian Institute of Technology Library | Asian Institute of Technology Library | AIT Publications | 17/08/2026 | 50.00 | AIT Thesis no.AQ-12-02 | 30050120696223 | 17/08/2026 | 1 | 17/08/2026 | 20-AIT Publication | ||||
| Available for Loans | Asian Institute of Technology Library | Asian Institute of Technology Library | AIT Publications | 17/08/2026 | 50.00 | AIT Thesis no.AQ-12-02 | 30050120696355 | 17/08/2026 | 2 | 17/08/2026 | 20-AIT Publication | ||||
| Available for Loans | Asian Institute of Technology Library | Asian Institute of Technology Library | Archives | 17/08/2026 | AIT Thesis no.AQ-12-02 | 30050120400527 | 17/08/2026 | 1 | 17/08/2026 | 40-Archives |