DINAMIKA MUSIMAN KUALITAS AIR DI DAERAH SUNGAI KAHAYAN KALIMANTAN TENGAH
Abstrak: This study is aimed
to investigate effect of nutrient contained chlorophyll-a and the influence of
physical, chemical water quality of the chlorophyll-a. Because the dynamics of
nutrients that affect primary productivity, which can cause changes in the conditions
these waters.Research was conducted at
the Kahayan River and back water is called Lake Tehang, connecting channel
between Lake Tehang and Lake Batu, Lake Tehang nearby port, Lake Tehang at the
middle part, Lake Bunter, Kahayan River of Kota Palangka Raya from Oktober
2015-Desember 2015 rainy seasonal and Juli 2015-September 2015 dry seasonal by
measuring monthly some water quality parameters such as water level or depth
(WL), water temperature (WT), Total Suspendid Solid (TSS), electrical conductivity
(EC), pH, dissolved oxygen (DO), nitrat (NO3), nitrit (NO2), fosfat (PO4),
total nitrogen (TN), silikat (SIO2), ammonia (NH3), total fosfat (TP),
chlorophyll-a. Those water quality parameters were regarded as independent
countinous variables which were measured insitu by using depth sounder for WL
and Horiba U10 water quality checker for WT, EC, pH and DO. However, for TSS,
NO3, NO2, TP, PO4, TN, SIO2, NH3 and chlorophyll-a were analyzed in the
laboratory. To extract these
multivariable data, I used Redudancy Analysis (RDA) of statistical program of R. Result showed that
there were clearly relationship among water quality parameters, factor of
chemical physics at study site by biplot ordination graph (map) of RDA. and
water temperature was simultaneously
affected significantly by water quality parameters, WL, source (F= 0.09, Pr(>F) = 0.005). The RDA
exhibited the brief tendency that
strongly possitive correlation occurred
among WL, EC, in turn the negatif correlation with WT, pH and DO by both RDA1
and RDA2 axis. In addition WT were also
strongly possitive correlation happened among them, and on the other hand
negatif correlation to WL RDA1 and RDA2 axis. By constraining all independent
variables, I found that WT were among the significant variables affecting
mortality of fish and respectively showing by anova permutation test : WT: F =
0,03, Pr(>F) = 0.005; F : 0,09, Pr (>F)= 0,19.Chemical physics factors
are chlorophyll-a gave an impulse to the development of chlorophyll-a in the
water, chlorophyll-a in waters influenced by the total phosphate, and silikat
(SIO2. In river and lakes of high latitude the large annual fluctuation of
water temperature affects aquatic communities including phytoplakton
KATA KUNCI: water quality,
chlorophyll-a, nutrients
Penulis: Elyta Vivi Yanti
Kode Jurnal: jppertaniandd170699
