Wan Abdul Ghani, Wan Mohd Hafezul
(2016)
Development Of Malaysian Water Quality Indices Using Aquatic Macroinvertebrates Population Of Pahang River Basin, Pahang, Malaysia.
PhD thesis, Universiti Sains Malaysia.
Abstract
Di dalam kajian ini, satu data makroinvertebrata dan parameter air yang besar telah
dikumpulkan dari 50 cabang sungai di Lembangan Sungai Pahang (PRB). Pada
mulanya, prestasi tiga penyampel; jaring berbingkai D dan segi empat sama dan
penyampel Surber, telah diuji untuk mengumpulkan makroinvertebrata akuatik di
tiga sungai. Variasi Relatif (RV) makroinvertebrata yang rendah telah dikumpulkan
oleh jaring segi empat sama di dua sungai (15% and 19%), dan ini menunjukkan
kecekapan yang tertinggi berbanding penyampel yang lain. Walaupun jaring segi
empat sama memerlukan masa yang lebih lama untuk memproses setiap sampel
(18.31 min), ia mencatatkan kepelbagaian makroinvertebrata yang paling tinggi
(Alphapurata = 13.5). Oleh sebab itu, jaring segi empat sama telah dipilih untuk
mengumpul data makroinvertebrata untuk perbandingan prestasi indeks biotik dan
menerbitkan nilai toleransi (TV) makroinvertebrata tersebut. Sebelas indeks biotik telah dipilih untuk dibandingkan prestasi mereka; Indeks Biotik Famili (FBI), Pemantauan Biologi Parti Kerja (BMWP), BMWP-Thai, BMWP-Viet, Purata Skor Per Takson (ASPT), ASPT-Thai, ASPT-Viet, HKHBios, Sistem Pemarkahan Afrika Selatan Versi 5 (SASS5), Indeks SingScore dan Indeks EPT.
In this study, a large macroinvertebrates and water parameters data were collected
from fifty Pahang River Basin (PRB) tributaries. Initially, the efficiency of three
samplers; D-frame and square nets and Surber sampler, for collections of aquatic
macroinvertebrates were tested in three rivers. Low relative variation (RV) of
macroinvertebrates collected by square net in two rivers (15% and 19%,
respectively) indicated its highest efficiency among the samplers. Although the
square net required a longer time to process each sample (18.31 min) it recorded the
highest macroinvertebrate diversities (Alphaaverage = 13.5). Consequently, the square
net was selected to collect macroinvertebrates for comparison of biotic index
performances and the derivation of their tolerance values (TVs). Eleven biotic
indices were chosen; Family Biotic Index (FBI), Biological Monitoring Working
Party (BMWP), BMWP-Thai, BMWP-Viet, Average Score Per Taxon (ASPT),
ASPT-Thai, ASPT-Viet, HKHBios, South African Scoring System version 5
(SASS5), SingScore and EPT Index and their performances were compared.
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