Water quality and aquatic insects study at the Lower Kinabatangan River Catchment, Sabah: in response to weak La Niña event
A study on water quality and aquatic insects has been conducted at the Lower Kinabatangan River Catchment, Sabah, Malaysia. The quality of water surface and aquatic insects’ composition were studied in streams near to oil palm plantation (OP), secondary forest (SF) and oxbow lake (OB). The study...
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| Format: | Article |
| Language: | English |
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Universiti Kebangsaan Malaysia
2015
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| Online Access: | http://journalarticle.ukm.my/8632/1/09_Sahana_Harun.pdf |
| _version_ | 1825726297374982144 |
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| author | Sahana Harun, Salman Abdo Al-Shami, Ramzah Dambul, Maryati Mohamed, Mohd Harun Abdullah, |
| author_facet | Sahana Harun, Salman Abdo Al-Shami, Ramzah Dambul, Maryati Mohamed, Mohd Harun Abdullah, |
| author_sort | Sahana Harun, |
| collection | UKM |
| description | A study on water quality and aquatic insects has been conducted at the Lower Kinabatangan River Catchment, Sabah,
Malaysia. The quality of water surface and aquatic insects’ composition were studied in streams near to oil palm plantation
(OP), secondary forest (SF) and oxbow lake (OB). The study also aims to identify the seasonal variation in the aquatic
insects’ composition during the weak La Niña event. A total of 135 water samples and 1678 aquatic insect individuals
(four orders and 14 families) were collected during fieldwork campaign that spanned over the inter-monsoonal period,
wet and dry seasons between October 2004 and June 2005. OP has the highest abundance of aquatic insects particularly
during the dry season. Biological indices showed that all stations were in moderate water category. The water quality
index (WQI) was calculated and indicated that the quality of the river categorised into Class II. Discriminant analysis
(DA) was employed to classify the independent variables into mutually-exclusive groups. Suspended sediment (SS) and
chemical oxygen demand (COD) were high during the wet season. Suspended sediment was high in oxbow lake and could
be a strong reason behind low abundance of aquatic insects. Precipitation anomalies were found to affect seasonal
variations of water quality and aquatic insects at the Lower Kinabatangan River. |
| first_indexed | 2024-03-06T04:08:46Z |
| format | Article |
| id | ukm.eprints-8632 |
| institution | Universiti Kebangsaan Malaysia |
| language | English |
| last_indexed | 2024-03-06T04:08:46Z |
| publishDate | 2015 |
| publisher | Universiti Kebangsaan Malaysia |
| record_format | dspace |
| spelling | ukm.eprints-86322016-12-14T06:47:44Z http://journalarticle.ukm.my/8632/ Water quality and aquatic insects study at the Lower Kinabatangan River Catchment, Sabah: in response to weak La Niña event Sahana Harun, Salman Abdo Al-Shami, Ramzah Dambul, Maryati Mohamed, Mohd Harun Abdullah, A study on water quality and aquatic insects has been conducted at the Lower Kinabatangan River Catchment, Sabah, Malaysia. The quality of water surface and aquatic insects’ composition were studied in streams near to oil palm plantation (OP), secondary forest (SF) and oxbow lake (OB). The study also aims to identify the seasonal variation in the aquatic insects’ composition during the weak La Niña event. A total of 135 water samples and 1678 aquatic insect individuals (four orders and 14 families) were collected during fieldwork campaign that spanned over the inter-monsoonal period, wet and dry seasons between October 2004 and June 2005. OP has the highest abundance of aquatic insects particularly during the dry season. Biological indices showed that all stations were in moderate water category. The water quality index (WQI) was calculated and indicated that the quality of the river categorised into Class II. Discriminant analysis (DA) was employed to classify the independent variables into mutually-exclusive groups. Suspended sediment (SS) and chemical oxygen demand (COD) were high during the wet season. Suspended sediment was high in oxbow lake and could be a strong reason behind low abundance of aquatic insects. Precipitation anomalies were found to affect seasonal variations of water quality and aquatic insects at the Lower Kinabatangan River. Universiti Kebangsaan Malaysia 2015-04 Article PeerReviewed application/pdf en http://journalarticle.ukm.my/8632/1/09_Sahana_Harun.pdf Sahana Harun, and Salman Abdo Al-Shami, and Ramzah Dambul, and Maryati Mohamed, and Mohd Harun Abdullah, (2015) Water quality and aquatic insects study at the Lower Kinabatangan River Catchment, Sabah: in response to weak La Niña event. Sains Malaysiana, 44 (4). pp. 545-558. ISSN 0126-6039 http://www.ukm.my/jsm/malay_journals/jilid44bil4_2015/KandunganJilid44Bil4_2015.html |
| spellingShingle | Sahana Harun, Salman Abdo Al-Shami, Ramzah Dambul, Maryati Mohamed, Mohd Harun Abdullah, Water quality and aquatic insects study at the Lower Kinabatangan River Catchment, Sabah: in response to weak La Niña event |
| title | Water quality and aquatic insects study at the Lower Kinabatangan River
Catchment, Sabah: in response to weak La Niña event |
| title_full | Water quality and aquatic insects study at the Lower Kinabatangan River
Catchment, Sabah: in response to weak La Niña event |
| title_fullStr | Water quality and aquatic insects study at the Lower Kinabatangan River
Catchment, Sabah: in response to weak La Niña event |
| title_full_unstemmed | Water quality and aquatic insects study at the Lower Kinabatangan River
Catchment, Sabah: in response to weak La Niña event |
| title_short | Water quality and aquatic insects study at the Lower Kinabatangan River
Catchment, Sabah: in response to weak La Niña event |
| title_sort | water quality and aquatic insects study at the lower kinabatangan river catchment sabah in response to weak la nina event |
| url | http://journalarticle.ukm.my/8632/1/09_Sahana_Harun.pdf |
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