Dragonflies (Insecta: Odonata) As Heavy Metal Biological Indicator In Freshwater Ecosystem

Aquatic insects are a useful biological indicator in river biomonitoring. Therefore, a this study was conducted on Odonata larvae and their responses to the heavy metals exposure found in most rivers. Four species of dragonflies larvae, including a Coenagrionid family (Pseudagrion microcephalum, Pru...

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Main Author:	Juma’at, Ahmad Hadri
Format:	Thesis
Language:	English
Published:	2021
Subjects:	QH1 Natural history (General - Including nature conservation geographical distribution)
Online Access:	http://eprints.usm.my/52454/1/AHMAD%20HADRI%20BIN%20JUMAAT%20-%20TESIS24.pdf
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id	my-usm-ep.52454
record_format	uketd_dc
spelling	my-usm-ep.524542022-04-30T04:59:16Z Dragonflies (Insecta: Odonata) As Heavy Metal Biological Indicator In Freshwater Ecosystem 2021-10 Juma’at, Ahmad Hadri QH1 Natural history (General - Including nature conservation, geographical distribution) Aquatic insects are a useful biological indicator in river biomonitoring. Therefore, a this study was conducted on Odonata larvae and their responses to the heavy metals exposure found in most rivers. Four species of dragonflies larvae, including a Coenagrionid family (Pseudagrion microcephalum, Pruinsoum fraseri and Ischnura senegalensis) and Platycnemidid (Copera marginipes), were collected from three different rivers in Kedah. Based on the Water Quality Index (WQI), all the three rivers were categorized as “moderately clean” (Class III) and all the environmental parameters showed significant spatial variation among the three rivers (F2,8= 7.90, P= 0.00) except temperature. Inductively Coupled Plasma Optical Emission Spectrometry (ICP-OES) was used to analyze four heavy metals (Cd, Mn, Zn and Cd) concentrations in water, sediment and Odonata larvae. This metal analysis showed that all the metals were found in water, sediment, and the tissue of the Odonata larvae. However, most heavy metals concentrations were found greatest in Odonata tissue, specifically Mn and Zn. Analysis of variance (ANOVA) showed that all the concentration of metals in C. marginipes were statistically significant in all three rivers compared to the other two species studied. Further test using correlation and regression analysis found that the accumulation of Zn and Mn metals in water and sediment had significantly influenced the content of metals on both larvae, P. fraseri and C. marginipes, with a significant r-value at P < 0.05. 2021-10 Thesis http://eprints.usm.my/52454/ http://eprints.usm.my/52454/1/AHMAD%20HADRI%20BIN%20JUMAAT%20-%20TESIS24.pdf application/pdf en public masters Universiti Sains Malaysia Pusat Pengajian Sains Kajihayat
institution	Universiti Sains Malaysia
collection	USM Institutional Repository
language	English
topic	QH1 Natural history (General - Including nature conservation geographical distribution)
spellingShingle	QH1 Natural history (General - Including nature conservation geographical distribution) Juma’at, Ahmad Hadri Dragonflies (Insecta: Odonata) As Heavy Metal Biological Indicator In Freshwater Ecosystem
description	Aquatic insects are a useful biological indicator in river biomonitoring. Therefore, a this study was conducted on Odonata larvae and their responses to the heavy metals exposure found in most rivers. Four species of dragonflies larvae, including a Coenagrionid family (Pseudagrion microcephalum, Pruinsoum fraseri and Ischnura senegalensis) and Platycnemidid (Copera marginipes), were collected from three different rivers in Kedah. Based on the Water Quality Index (WQI), all the three rivers were categorized as “moderately clean” (Class III) and all the environmental parameters showed significant spatial variation among the three rivers (F2,8= 7.90, P= 0.00) except temperature. Inductively Coupled Plasma Optical Emission Spectrometry (ICP-OES) was used to analyze four heavy metals (Cd, Mn, Zn and Cd) concentrations in water, sediment and Odonata larvae. This metal analysis showed that all the metals were found in water, sediment, and the tissue of the Odonata larvae. However, most heavy metals concentrations were found greatest in Odonata tissue, specifically Mn and Zn. Analysis of variance (ANOVA) showed that all the concentration of metals in C. marginipes were statistically significant in all three rivers compared to the other two species studied. Further test using correlation and regression analysis found that the accumulation of Zn and Mn metals in water and sediment had significantly influenced the content of metals on both larvae, P. fraseri and C. marginipes, with a significant r-value at P < 0.05.
format	Thesis
qualification_level	Master's degree
author	Juma’at, Ahmad Hadri
author_facet	Juma’at, Ahmad Hadri
author_sort	Juma’at, Ahmad Hadri
title	Dragonflies (Insecta: Odonata) As Heavy Metal Biological Indicator In Freshwater Ecosystem
title_short	Dragonflies (Insecta: Odonata) As Heavy Metal Biological Indicator In Freshwater Ecosystem
title_full	Dragonflies (Insecta: Odonata) As Heavy Metal Biological Indicator In Freshwater Ecosystem
title_fullStr	Dragonflies (Insecta: Odonata) As Heavy Metal Biological Indicator In Freshwater Ecosystem
title_full_unstemmed	Dragonflies (Insecta: Odonata) As Heavy Metal Biological Indicator In Freshwater Ecosystem
title_sort	dragonflies (insecta: odonata) as heavy metal biological indicator in freshwater ecosystem
granting_institution	Universiti Sains Malaysia
granting_department	Pusat Pengajian Sains Kajihayat
publishDate	2021
url	http://eprints.usm.my/52454/1/AHMAD%20HADRI%20BIN%20JUMAAT%20-%20TESIS24.pdf
_version_	1747822183193772032

Dragonflies (Insecta: Odonata) As Heavy Metal Biological Indicator In Freshwater Ecosystem

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