Author/Authors :
Praveena، S M نويسنده School of Science and Technology, Universiti Malaysia Sabah, Locked Bag No. 2073, 88999 Kota Kinabalu, Sabah, Malaysia , , Ahmed، A نويسنده School of Science and Technology, Universiti Malaysia Sabah, Locked Bag No. 2073, 88999 Kota Kinabalu, Sabah, Malaysia , , Radojevic، M نويسنده School of Science and Technology, Universiti Malaysia Sabah, Locked Bag No. 2073, 88999 Kota Kinabalu, Sabah, Malaysia , , Abdullah، M H نويسنده School of Science and Technology, Universiti Malaysia Sabah, Locked Bag No. 2073, 88999 Kota Kinabalu, Sabah, Malaysia , , Aris، A Z نويسنده Faculty of Environmental Studies, Universiti Putra Malaysia, 43400 UPM Serdang, Selangor, Malaysia ,
Abstract :
The inter-tidal mangrove environment of Mengkabong lagoon is important as it
supports the local fishing activities, nursery grounds for many fish and shellfish species, and as
well as being central for ecotourism activities. The study showed that in general, the physicochemical
parameters (pH, salinity and electrical conductivity), granulometric fractions, organic matter, base
cations (Na, K, Ca and Mg) and heavy metals (Fe, Cu, Pb, Zn and Al) showed increasing loadings at
high tide compared to low tide. Multivariatestatistical techniques, principal components analysis
(PCA) and cluster analysis (CA), wereemployed to better interpret information about the sediment
and its controlling factors. The PCA results revealed six controlling factors at high tide while seven
at low tide. In CA there are two district clusters were identified at high and low tides. The calculation
of geoaccumulation index (Igeo) suggests the Mengkabong mangrove sediments are having
background concentrations for Al, Cu, Fe, and Zn and unpolluted for Pb.
