ANALISIS HISTOLOGI GINJAL IKAN BAUNG (Hemibagrus nemurus) YANG TERINDIKASI PENCEMARAN DI PERAIRAN SUNGAI KAMPAR PROVINSI RIAU
Abstract: Several large and
small rivers in Riau flow down into the estuary ofKampar River. Water that
flown from these resources, however, may containmany types of pollutants as
there are many industrial and domestic activitiesconducted along the river
dispose their waste in the river. The present of thepollutant strongly affect
the water quality and negatively affect aquatic organismliving in the river. To
understand the effects of the pollutant, especially theindustrial pollutant on
the biology of aquatic organisme, this study wasconducted. Samples of water,
sediment and Hemibagrus nemurus (Bagridae) weretaken and the presence of heavy
metal in these samples were analyzed. Heavymetal content in the sediment and
water were analyzed using an AAS method,while its presence in the fish was
detected in the kidney that was processed forhistological analysis. Results
shown that the highest Pb and Cd content waspresent in the kidney of fish
living in the downstream, followed by fish living inthe midstream and the
lowest was in the fish captured in the upstream.Histological analysis of the
kidney shown that there is abnormality of the kidneytissue as there are
necrotic cells, limphocyte presence, infected glomerulus andhaemorrhagic spots.
Heavy metals accumulation was also detected as there areblack spots (indication
of heavy metal mineralization) present in that tissue. Aswell as in the fish
tissue, the highest heavy metal content were found in the waterand sediment
taken from the downstream, followed by mid and downstream.However, statistical
analysis shown that there is no interaction between Cdcontent and sampling
sites (P>0.05). Data obtained in this research proved that thewaste
originated from industrial activities along the river negatively affect
waterquality as well as aquatic organisms, especially Bagridae fish.
Key words: Kampar River, heavy
metal, pollutant, Bagridae fish
Penulis: Erlangga
Kode Jurnal: jpperikanandd110055
