I Made Sara Wijana
Fakultas MIPA Unud

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STUDI DAN PEMANTAUAN KUALITAS AIR DI DAERAH ALIRAN SUNGA! (DAS) BADUNG Wijana, I Made Sara; Sri Pancadewi, I.G.A. Kunti; As-syakur, Abd Rahman
ECOTROPHIC : Jurnal Ilmu Lingkungan (Journal of Environmental Science) Vol 7 No 1 (2012)
Publisher : Master Program of Environmental Science, Postgraduate Program of Udayana University

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Abstract

Badung River is one of the river that across Denpasar city. As one of the rivers that passes through the city with a very dense population, along the river there are activities that has potentially degrade water quality. The aims of this study are to determine the water quality trend and status of water quality standards of Badung River from 2006 to 2009. The result analysis showed the water quality on Badung River declined in the upstream section and relatively stabl e in the middle and downstream section. This situation is result of the waste sources is relatively constant throughout the study period. The existence of DO, BODS, Nitrites, Phosphates, Coliform, and E. Coli is the water quality parameter that always exceeds the threshold of quality standard.
STRUKTUR GENETIK DAN FILOGENI YELLOWFIN TUNA (THUNNUS ALBACARES) BERDASARKAN SEKUEN DNA MITKONDRIA CONTROL REGION SITOKROM OKSIDASE I PADA DIVERSITAS ZONE BIOGEOGRAFI Wijana, I Made Sara; Mahardika, I Gusti Ngurah
Bumi Lestari Journal of Environment Vol 10 No 2 (2010)
Publisher : Environmental Research Center (PPLH) of Udayana University

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Abstract

Genetic structure and phylogeni of 37 sequences control region DNA mitochondrial cytocrome oxidase I of yellowfin tuna (Thunnus albacores) have been downloaded from GeneBank and analised using Maximum Likehood (ML), Pairwise Genetic Distance and Bootstrapping Phylogeni Model of Kimura 2 Parameter. The result shows that the corrected value of the data was 5,5% and the mean of genetic distances was 3,7 %, where the shortest distance was 0.0% and the longest was 5%. The genetic distances with the out group (Thunnus obesus) ranged between 7,8 % â?? 9,8 % and with the Thunnus thynus ranged between 10,4% â?? 12,5%. The value of bootstrap phylogeny of 37 sequences of yellowfin tuna was less than 50%. All those results shows that there was no significant genetic differences of 34 samples sourced from Philipines and 3 from Spain based on sequence region DNA mitochondrial cytocrome oxidase I.