# Effect of Cadmium (Cd) heavy metal in Tempe Lake, Wajo Regency on histopathology of silver barb (Barbonymus gonionotus)
> Utari D.A.

URL kanonis: https://discover.unhas.ac.id/publications/pub_scopus_85118872590
Jurnal / Konferensi: Iop Conference Series Earth and Environmental Science
Tahun terbit: 2021
DOI: https://doi.org/10.1088/1755-1315/870/1/012010
ISSN: 17551307
Citations: 0

## Authors
- Utari D.A.

## Abstract
Silver barb (Barbonymus gonionotus) is one of the riches of indonesia waters which is classified as a fish that is easy to adapt and is consumed by the community. The purpose of this study was to determine the effect of heavy metal cadmium (Cd) contamination in tempe lake, Wajo Regency on the histopathology of silver barb (Barbonymus gonionotus) liver. The samples used were 15 fish with 5 fish liver samples in each station. Measurement of heavy metal levels was carried out by Atomic Absorption Spectrophotometry (AAS) and obtained the concentration of cadmium (Cd) in the contaminated fish organs, namely 0.04 - 0.33 µg / g with a mean of 0.11± 0.08 µg / g. Organ (liver) preparations were fixed using 10% neutral buffered formalin (NBF), dehydration using graded alcohol, embedding using paraffin, cutting with a thickness of 4 µm stained using haematoxylin eosin and then observed. The data analysis used is descriptive qualitative. Based on the results of observations of damage or histopathology that occurs in the liver, which indicates degeneration, hemorrhage, inflammatory cell infiltration and necrosis. The level of damage to the tissue depends on the concentration of metals contaminated in fish organs. Most of the damages that occur are thought to be due to exposure to heavy metals dissolved in the waters of the fish ecosystem which has passed the threshold.

## Keywords
- Cadmium
- Atomic absorption spectroscopy
- Histopathology
- Eosin
- Contamination
- Heavy metals
- Gill
- Chemistry
- Tempe
- Environmental chemistry
- Fish <Actinopterygii>
- Veterinary medicine
- Staining
- Animal science
- Biology
- Food science
- Fishery
- Pathology
- Ecology
- Medicine
- Organic chemistry
- Physics
- Genetics
- Quantum mechanics

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Sumber: Discover Unhas — RIMS Universitas Hasanuddin.
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