The influence of heavy metals and water parameters on the composition and abundance of water bugs (insecta: hemiptera) in the Kerian River Basin, Perak, Malaysia

Mohd Ishadi, Nor Adibah and Md Rawi, Che Salmah and Ahmad, Abu Hassan and Abdul, Nurul Huda (2014) The influence of heavy metals and water parameters on the composition and abundance of water bugs (insecta: hemiptera) in the Kerian River Basin, Perak, Malaysia. Tropical Life Sciences Research, 25 (2). pp. 61-79. ISSN 1985-3718 E-ISSN 2180-4249

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Abstract

The hemipteran (Insecta) diversity in the upper part of the Kerian River Basin was low with only 8 families and 16 genera recorded at 4 study sites from 3 rivers. Water bug composition varied among sampling sites (Kruskal-Wallis χ² = 0.00, p<0.05) but was not affected by wet-dry seasons (Z = 0.00, p>0.05). All recorded water parameters were weakly associated with generic abundance but the biochemical oxygen demand (BOD), chemical oxygen demand (COD), Water Quality Index (WQI) and heavy metals (zinc and manganese) showed relatively strong positive or negative relations with hemipteran diversity and richness (H’ and R2). Within the ranges of measured water parameters, the WQI was negatively associated with hemipteran diversity and richness, implying the tolerance of the water bugs to the level of pollution encountered in the river basin. Based on its highest abundance and occurrence (ISI), Rhagovelia was the most important genus and along with Rheumatogonus and Paraplea, these genera were common at all study sites. In conclusion, habitat availability and suitability together with some environmental parameters influenced the abundance and composition of hemipterans in this river basin.

Item Type:	Article (Journal)
Additional Information:	8105/60380
Uncontrolled Keywords:	Hemiptera Akuatik, Kepelbagaian, Kekayaan, Parameter Air, Kesesuaian Habitat, Habitat Sungai
Subjects:	Q Science > Q Science (General)
Kulliyyahs/Centres/Divisions/Institutes (Can select more than one option. Press CONTROL button):	Kulliyyah of Science
Depositing User:	DR. NURUL HUDA ABDUL
Date Deposited:	26 Dec 2017 15:12
Last Modified:	26 Dec 2017 15:12
URI:	http://irep.iium.edu.my/id/eprint/60380

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