Comparative odonate larval population in selected rivers in Penang island in relation to the influence of habitats and water quality

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dc.contributor.authorTribuana, Surya Wardhani
dc.date.accessioned2014-11-11T01:19:12Z
dc.date.available2014-11-11T01:19:12Z
dc.date.issued2007
dc.descriptionMasteren_US
dc.description.abstractDiversity and population structure of Odonata larvae were studied in three rivers, River Falls, River Terrace and River Bridge in Penang Youth Park. The study, which began in December 2004 to February 2006, covers eight months and four months of the rainy season and dry season. Diversity habitat sampled 5,081 individuals have managed to collect larvae of Odonata representing five families and 16 species. River Falls, there are nine species dominantly represented by Pseudagrion rubriceps, P. microcephalum, Ictinogomphus decoratus, Paragomphus Capricornis, Trithemis aurora, Orthetrum ACTIVITIES, O. sabina, Neurothemis fluctuans and Potamarcha congeners. Then Titi Teras River. The dominant species obtained Ictinogomphus decoratus, Paragomphus Capricornis, Trithemis aurora and Orthetrum ACTIVITIES. While the dominant species in the River Park Youth represented Crocothemis servilia and Orthetrum activities Naturally River Water Falls has a different composition of the substrate than the second another river. In addition, there is vegetation along the river banks and in the river. Among the three rivers studied have found every river species not found in other rivers like aeshnid Anax guttatus in River Water Falls, gomphid Megalogomphus sumatranus and libellulid Onychothemis testacea in Titi Teras River and libellulid Hydrobasileus croceus River Youth Park. The presence of these species can be attributed to habitat conditions. As example A. guttatus larvae inhabit open habitats and hiding in the roots or in among the weeds in River Falls. Meanwhile, according to M. sumatranus inhabits sandy riverbed with high current speeds and has a habit digging in the sand at the Titi Teras River. In addition sumatranus M. Titi Teras River, also Onychothemis testacea found a passion for habitat bersubtratum leaves and sand in the shallow river that has high-speed flows. Libellulid O. M. testacea and gomphid sumatranus only available in Titi Teras River. It because of the presence of these two species in the Titi Teras River can be an indicator that the water quality of the river is clean and fast-speed. The Youth Park River, larvae Hydrobasileus croceus inhabit watery habitat dirty and muddy. They hiding in the bottom of the river, but do not dig into the sand.en_US
dc.identifier.urihttp://hdl.handle.net/123456789/383
dc.language.isoenen_US
dc.subjectBiological Scienceen_US
dc.subjectOdonate larvalen_US
dc.subjectWater qualityen_US
dc.subjectHabitatsen_US
dc.titleComparative odonate larval population in selected rivers in Penang island in relation to the influence of habitats and water qualityen_US
dc.typeThesisen_US
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