Spatial Variations in Water Quality of Batang Ai Reservoir, Lubok Antu, Sarawak, Malaysia
In Sarawak, the Batang Ai Reservoir has been utilized for cage culture activities for many years since its impoundment in 1985. A few sites in the reservoir have been used for cage culture and one site has been abandoned. This study was carried out to document the water quality at three existing...
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| Format: | Final Year Project Report / IMRAD |
| Language: | English English |
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Universiti Malaysia Sarawak, (UNIMAS)
2014
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| Online Access: | http://ir.unimas.my/id/eprint/8278/ http://ir.unimas.my/id/eprint/8278/1/Spatial%20Variations%20in%20Water%20Quality%20of%20Batang%20Ai%20Reservoir%2C%20Lubok%20Antu%2C%20Sarawak%2C%20Malaysia%2824pgs%29.pdf http://ir.unimas.my/id/eprint/8278/2/Spatial%20Variations%20in%20Water%20Quality%20of%20Batang%20Ai%20Reservoir%2C%20Lubok%20Antu%2C%20Sarawak%2C%20Malaysia.pdf |
| _version_ | 1848836342803333120 |
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| author | Nurul Safinaz, binti Mohamad Kamal |
| author_facet | Nurul Safinaz, binti Mohamad Kamal |
| author_sort | Nurul Safinaz, binti Mohamad Kamal |
| building | UNIMAS Institutional Repository |
| collection | Online Access |
| description | In Sarawak, the Batang Ai Reservoir has been utilized for cage culture activities for many years since
its impoundment in 1985. A few sites in the reservoir have been used for cage culture and one site has
been abandoned. This study was carried out to document the water quality at three existing
aquaculture sites, one abandoned site, and one station further from cage cultures activities. Results
showed the thermocline formation at 10 – 14 m depth. DO concentration of 0.32 – 2.25 mg/L at 10 m
depth was not suitable for fish survival. Highest chlorophyll a (0.023 mg/L) was recorded at 20 m
depth with significant positive correlation with total phosphorus and ammonia. High water level in
October 2013 within reservoir may have caused dilution of major nutrients. The cage culture
activities at Batang Ai Reservoir had impacted on the water quality at the cage culture sites. Hence,
proper site selection should be determined, moderate carrying capacity for cage culture should be
considered, extensive feeding during drought should be controlled in order to reduce the impact of
cage culture on the water quality of Batang Ai Reservoir. |
| first_indexed | 2025-11-15T06:22:15Z |
| format | Final Year Project Report / IMRAD |
| id | unimas-8278 |
| institution | Universiti Malaysia Sarawak |
| institution_category | Local University |
| language | English English |
| last_indexed | 2025-11-15T06:22:15Z |
| publishDate | 2014 |
| publisher | Universiti Malaysia Sarawak, (UNIMAS) |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | unimas-82782015-09-14T01:29:56Z http://ir.unimas.my/id/eprint/8278/ Spatial Variations in Water Quality of Batang Ai Reservoir, Lubok Antu, Sarawak, Malaysia Nurul Safinaz, binti Mohamad Kamal SH Aquaculture. Fisheries. Angling In Sarawak, the Batang Ai Reservoir has been utilized for cage culture activities for many years since its impoundment in 1985. A few sites in the reservoir have been used for cage culture and one site has been abandoned. This study was carried out to document the water quality at three existing aquaculture sites, one abandoned site, and one station further from cage cultures activities. Results showed the thermocline formation at 10 – 14 m depth. DO concentration of 0.32 – 2.25 mg/L at 10 m depth was not suitable for fish survival. Highest chlorophyll a (0.023 mg/L) was recorded at 20 m depth with significant positive correlation with total phosphorus and ammonia. High water level in October 2013 within reservoir may have caused dilution of major nutrients. The cage culture activities at Batang Ai Reservoir had impacted on the water quality at the cage culture sites. Hence, proper site selection should be determined, moderate carrying capacity for cage culture should be considered, extensive feeding during drought should be controlled in order to reduce the impact of cage culture on the water quality of Batang Ai Reservoir. Universiti Malaysia Sarawak, (UNIMAS) 2014 Final Year Project Report / IMRAD NonPeerReviewed text en http://ir.unimas.my/id/eprint/8278/1/Spatial%20Variations%20in%20Water%20Quality%20of%20Batang%20Ai%20Reservoir%2C%20Lubok%20Antu%2C%20Sarawak%2C%20Malaysia%2824pgs%29.pdf text en http://ir.unimas.my/id/eprint/8278/2/Spatial%20Variations%20in%20Water%20Quality%20of%20Batang%20Ai%20Reservoir%2C%20Lubok%20Antu%2C%20Sarawak%2C%20Malaysia.pdf Nurul Safinaz, binti Mohamad Kamal (2014) Spatial Variations in Water Quality of Batang Ai Reservoir, Lubok Antu, Sarawak, Malaysia. [Final Year Project Report / IMRAD] (Unpublished) |
| spellingShingle | SH Aquaculture. Fisheries. Angling Nurul Safinaz, binti Mohamad Kamal Spatial Variations in Water Quality of Batang Ai Reservoir, Lubok Antu, Sarawak, Malaysia |
| title | Spatial Variations in Water Quality of Batang Ai Reservoir, Lubok Antu, Sarawak, Malaysia |
| title_full | Spatial Variations in Water Quality of Batang Ai Reservoir, Lubok Antu, Sarawak, Malaysia |
| title_fullStr | Spatial Variations in Water Quality of Batang Ai Reservoir, Lubok Antu, Sarawak, Malaysia |
| title_full_unstemmed | Spatial Variations in Water Quality of Batang Ai Reservoir, Lubok Antu, Sarawak, Malaysia |
| title_short | Spatial Variations in Water Quality of Batang Ai Reservoir, Lubok Antu, Sarawak, Malaysia |
| title_sort | spatial variations in water quality of batang ai reservoir, lubok antu, sarawak, malaysia |
| topic | SH Aquaculture. Fisheries. Angling |
| url | http://ir.unimas.my/id/eprint/8278/ http://ir.unimas.my/id/eprint/8278/1/Spatial%20Variations%20in%20Water%20Quality%20of%20Batang%20Ai%20Reservoir%2C%20Lubok%20Antu%2C%20Sarawak%2C%20Malaysia%2824pgs%29.pdf http://ir.unimas.my/id/eprint/8278/2/Spatial%20Variations%20in%20Water%20Quality%20of%20Batang%20Ai%20Reservoir%2C%20Lubok%20Antu%2C%20Sarawak%2C%20Malaysia.pdf |