Study On The Biology And Heavy Metal Toxicity On Chironomus Kiiensis Tokunanga And Chironomus Javanus Kieffer (Diptera: Chironomidae)

Chironomus kiiensis Tokunanga and Chironomus javanus Kieffer were found to be suitable for use as test organism in both aquatic and sediment toxicity tests. Both species have a relatively short life cycle (C. kiiensis = 20.86 days and C. javanus = 15.14 days) and easy to culture under laborato...

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Main Author: Ebau, Warrin
Format: Thesis
Language:English
Published: 2010
Subjects:
Online Access:http://eprints.usm.my/43092/
http://eprints.usm.my/43092/1/Warrin_AP_Ebau24.pdf
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author Ebau, Warrin
author_facet Ebau, Warrin
author_sort Ebau, Warrin
building USM Institutional Repository
collection Online Access
description Chironomus kiiensis Tokunanga and Chironomus javanus Kieffer were found to be suitable for use as test organism in both aquatic and sediment toxicity tests. Both species have a relatively short life cycle (C. kiiensis = 20.86 days and C. javanus = 15.14 days) and easy to culture under laboratory conditions using the same method and food. Both species were found to have four instar stages each with C. javanus having longer body and bigger in size. It is difficult to differentiate these two species at larval stages by naked eyes as they look similar. The apparent characteristic that differentiates C. javanus with C. kiiensis is the unusual teeth number (7 teeth) in the premandible. However, these two species were easy to differentiate at adult stage where C. kiiensis is yellowish brown in colour while C. javanus is greenish in colour.
first_indexed 2025-11-15T17:51:57Z
format Thesis
id usm-43092
institution Universiti Sains Malaysia
institution_category Local University
language English
last_indexed 2025-11-15T17:51:57Z
publishDate 2010
recordtype eprints
repository_type Digital Repository
spelling usm-430922019-04-12T05:26:50Z http://eprints.usm.my/43092/ Study On The Biology And Heavy Metal Toxicity On Chironomus Kiiensis Tokunanga And Chironomus Javanus Kieffer (Diptera: Chironomidae) Ebau, Warrin QH1 Natural history (General - Including nature conservation, geographical distribution) Chironomus kiiensis Tokunanga and Chironomus javanus Kieffer were found to be suitable for use as test organism in both aquatic and sediment toxicity tests. Both species have a relatively short life cycle (C. kiiensis = 20.86 days and C. javanus = 15.14 days) and easy to culture under laboratory conditions using the same method and food. Both species were found to have four instar stages each with C. javanus having longer body and bigger in size. It is difficult to differentiate these two species at larval stages by naked eyes as they look similar. The apparent characteristic that differentiates C. javanus with C. kiiensis is the unusual teeth number (7 teeth) in the premandible. However, these two species were easy to differentiate at adult stage where C. kiiensis is yellowish brown in colour while C. javanus is greenish in colour. 2010-06 Thesis NonPeerReviewed application/pdf en http://eprints.usm.my/43092/1/Warrin_AP_Ebau24.pdf Ebau, Warrin (2010) Study On The Biology And Heavy Metal Toxicity On Chironomus Kiiensis Tokunanga And Chironomus Javanus Kieffer (Diptera: Chironomidae). Masters thesis, Universiti Sains Malaysia.
spellingShingle QH1 Natural history (General - Including nature conservation, geographical distribution)
Ebau, Warrin
Study On The Biology And Heavy Metal Toxicity On Chironomus Kiiensis Tokunanga And Chironomus Javanus Kieffer (Diptera: Chironomidae)
title Study On The Biology And Heavy Metal Toxicity On Chironomus Kiiensis Tokunanga And Chironomus Javanus Kieffer (Diptera: Chironomidae)
title_full Study On The Biology And Heavy Metal Toxicity On Chironomus Kiiensis Tokunanga And Chironomus Javanus Kieffer (Diptera: Chironomidae)
title_fullStr Study On The Biology And Heavy Metal Toxicity On Chironomus Kiiensis Tokunanga And Chironomus Javanus Kieffer (Diptera: Chironomidae)
title_full_unstemmed Study On The Biology And Heavy Metal Toxicity On Chironomus Kiiensis Tokunanga And Chironomus Javanus Kieffer (Diptera: Chironomidae)
title_short Study On The Biology And Heavy Metal Toxicity On Chironomus Kiiensis Tokunanga And Chironomus Javanus Kieffer (Diptera: Chironomidae)
title_sort study on the biology and heavy metal toxicity on chironomus kiiensis tokunanga and chironomus javanus kieffer (diptera: chironomidae)
topic QH1 Natural history (General - Including nature conservation, geographical distribution)
url http://eprints.usm.my/43092/
http://eprints.usm.my/43092/1/Warrin_AP_Ebau24.pdf