Al-Shami, Salman Abdo Ali
(2006)
Some Aspects Of Ecology And Genetics Of Chironomidae
(Diptera) In Rice Field And The Effect Of Selected Herbicides
On Its Population.
Masters thesis, Universiti Sains Malaysia.
Abstract
Kajian ekologi dan molekul dijalankan terhadap serangga akuatik
Chironomidae (Diptera) yang mendiami kawasan sawah padi di Stesen Kaiian
Pertanian Bukit Merah (BMAES), Seberang Perai, Pulau Pinang, Malaysia.
Penyiasatan terhadap taburan dan kelimpahan chironomid (Chironomidae:
Diptera) menunjukkan bahawa taburan populasi larva chironomid meningkat
dan menurun mengikut perubahan dinamik ekosistem sawah padi. Kepadatan
tertinggi dalam musim pertama ialah 294.39m-2 dan 306.37m-2 dalam musim
kedua. Penyampelan larva setiap dua minggu selama dua musim penanaman
2004/2005 menunjukkan bahawa Chironomus kiiensis adalah spesies yang
paling dominan ditemui. Manakala empat lagi spesies, Polypedilum lrigonus,
Tanytarsus formosanus, Tanypus punctipennis and Clinotanypus sp didapati
dalam jumlah yang rendah walaupun ditemui pada sepanjang masa sawah padi
dipenuhi air.
An ecological and molecular study was conducted on the aquatic insect
Chironomidae (Diptera) inhabiting the rice field in Bukit Merah Agricultural
Research Station (BMAES), Seberang Perai, Pulau Pinang Malaysia.
Investigation on the distribution and abundance of chironomid larvae
(Chironomidae: Diptera) showed that the larval population fluctuated following
the dynamic changes in rice field ecosystem. The maximum density in the first
season was 294.39 m-2 and 306.37 m-2 in the second season. Biweekly
sampling of larvae over two rice growing seasons of 2004/2005 revealed that
Chironomus kinesis was the most abundant species while four other species
Polypedilum trigon us, Tanytarsus formosanus, Tanypus punctipennis and
Clinotanypus sp were found in low numbers although they occurred during all
rice wet phases.
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