Exposure of tilapia (Oreochromis niloticus) to the antibiotic florfenicol in water: determination of the bioconcentration factor and the withdrawal period

2021 ◽  
Author(s):  
Letícia Sayuri Shiroma ◽  
Carla Beatriz Grespan Bottoli ◽  
Claudio Martin Jonsson ◽  
Sonia C. N. Queiroz
Keyword(s):  
Oreochromis Niloticus ◽  
Bioconcentration Factor ◽  
Withdrawal Period ◽  
Water Determination

scholarly journals KANDUNGAN LOGAM BERAT TIMBAL (Pb) PADA IKAN NILA (Oreochromis niloticus) DI SUNGAI TENGGANG, SEMARANG, JAWA TENGAH Heavy Metal Concentration of Pb in Nile tilapia (Oreochromis niloticus) in the Tenggang River, Semarang, Central Java

2019 ◽  
Vol 8 (3) ◽  
pp. 242-249
Author(s):  
Dana Yuli Agustina ◽  
Djoko Suprapto ◽  
Sigit Febrianto
Keyword(s):  
Heavy Metal ◽  
Oreochromis Niloticus ◽  
Nile Tilapia ◽  
Bioconcentration Factor ◽  
Heavy Metal Concentration ◽  
Purposive Sampling ◽  
Central Java ◽  
Nile Tilapia Oreochromis Niloticus ◽  
Paint Industry

ABSTRAK Timbal merupakan logam berat yang bersifat toksik dan biasanya bersumber dari industri cat, baterai dan percetakan. Sungai Tenggang berdekatan dengan Lingkungan Industri Kecil (LIK) dan pemukiman sehingga meningkatkan limbah ke dalam perairan termasuk logam berat. Hal tersebut menjadi alasan mengapa penelitian mengenai kandungan logam berat timbal pada ikan nila (Oreochromis niloticus) di Sungai tenggang, Semarang, Jawa Tengah ini dilaksanakan. Penelitian ini bertujuan untuk mengetahui kandungan logam berat timbal pada air dan ikan nila, mengetahui nilai biokonsentrasi faktor ikan nila serta mengetahui batas konsumsi mingguan daging ikan nila. Penelitian ini dilaksanakan pada bulan April 2019. Metode yang digunakan adalah metode deskriptif dengan pendekatan secara kuantitatif serta sampling menggunakan metode purposive sampling. Hasil perhitungan konsentrasi logam berat Pb dalam air rata-rata sebesar 0,155 mg/l. Konsentrasi logam berat Pb dalam daging ikan nila rata-rata 2,35 mg/kg. Hasil perhitungan bioconcentration factor (BCF) berkisar antara 12,03 – 17,17.  Hasil perhitungan berat maksimal konsumsi ikan nila mingguan diperoleh rata-rata sebesar 0,63 kg/minggu. Berdasarkan hasil yang telah diperoleh dapat disimpulkan bahwa kadar konsentrasi logam berat timbal pada air dan ikan nila di Sungai Tenggang tergolong cukup tinggi serta sudah melebihi ambang batas baku mutu yang telah ditentukan. Angka BCF logam berat timbal pada ikan nila termasuk dalam kategori tingkat akumulatif rendah (BCF < 100). ABSTRACT Plumbum is heavy metal that is toxic and source from paint industry, battery and printing. Tenggang river near with small industrial environment (LIK) and settlement so that increasing the waste entering to river including heavy metal waste. This is the reason for this research do. This study aims to determine the heavy metal Pb of water and Nile tilapia meat, bioconcentration factor of nile and knowing the limit of weekly consumption of  nile tilapia meat (MTI). The study was conducted in April 2019. The method used was a descriptive method with the determination of sampling using purposive sampling. The result of heavy metal Pb concentration in water averaged by 0,155 mg/l. Concentration of heavy metal Pb in Nile tilapia (Oreochromis niloticus) meat averaged by 2,35 mg/kg. The calculation result of bioconcentration factor (BCF) is range between 12,03 – 17,17. The maximum limit result of weekly fish consumption is averaged by 0,63 kg/minggu. Based on the results obtained it can be concluded that concentration of heavy metal Pb in water and nile tilapia tenggang river quite high and has reached above the permisible limit. BCF number of heavy metal in nile tilapia fall into the category of low accumulative levels (BCF < 100).

scholarly journals Determination of presence and quantification of cadmium, lead and copper in Nile tilapia (Oreochromis niloticus) fillets obtained from three cold storage plants in the state of Parana, Brazil

2011 ◽  
Vol 31 (2) ◽  
pp. 361-365 ◽  
Author(s):  
Alexandre Nobuhiro Tajiri ◽  
Daisy Pontes Netto ◽  
Márcia Sassahara ◽  
Mari Sylmara Martins Rodrigues ◽  
Cristina Arduini Cavalcanti de Arruda
Keyword(s):  
Cold Storage ◽  
Oreochromis Niloticus ◽  
Nile Tilapia ◽  
The State ◽  
Nile Tilapia Oreochromis Niloticus ◽  
Cadmium Lead

scholarly journals ESTIMATION OF PHOSPHORUS AND NITROGEN RELEASED BY THE BREEDING OF OREOCHROMIS NILOTICUS IN CAGES IN THE TOHO AND TODOUGBA LAGOONS(SOUTHER BENIN) BETWEEN 2017 AND 2020

2021 ◽  
Vol 9 (11) ◽  
pp. 422-430
Author(s):  
Achoh Mardochee Ephraim ◽  
◽  
Agadjihouede Hyppolite ◽  
Gangbe Luc ◽  
Aizonou Romaric ◽  
...  
Keyword(s):  
Organic Matter ◽  
Water Column ◽  
Oreochromis Niloticus ◽  
Nutrient Release ◽  
Laboratory Analysis ◽  
The Other ◽  
Production Data ◽  
Nitrogen Concentrations ◽  
High Production

The present study aim to estimate the ratio of aquaculture in the phosphorus and nitrogen concentrations determined in the Toho - Todougba lagoons. For this purpose, the two lagoons were subdivided into 7 stations for the determination of phosphorus and nitrogen concentrations in the water column. Production data from 2017 to 2019 were collected from the Direction of the Ficheries Production and from the literature. Data for 2020 were collected directly from fish farmers. Annual tilapia production was estimated by year and the amounts of phosphorus and nitrogen released from aquaculture are deduced based on the ratio of Montanhini Neto & Ostrensky (2013). The concentration of each of these nutrients was estimated by station and compared to the concentration determined by laboratory analysis of the water. This methodology shows that the amount of phosphorus and nitrogen released to the environment varies from 0.49 mg/L to 0.18 mg/L for phosphorus and from 1.53 mg/L to 0.58 mg/L for nitrogen. The lowest values are obtained in 2020 and differ significantly from the other years (p <0.05). The quantity of phosphorus discharged is higher at the high production stations (Tonon 0.20 mg/L and Lokohoue 0.11 mg/L). Some of this is stored in the sediment. The nitrogen generated by aquaculture is significantly lower than the average determined in water (p <0.05). However, the concentration determined is still related to the amount of organic matter released due to aquaculture. Although aquaculture is not the only source of nutrient release to water, strategies for aquaculture with less nutrient release should be determined.

scholarly journals Iron in Well Water: Case Study in Dulalowo and Heledulaa Districts

2020 ◽  
Vol 2 (2) ◽  
pp. 46-52
Author(s):  
Hendri Iyabu ◽  
Anita Muhammad ◽  
Jafar La Kilo ◽  
Akram La Kilo
Keyword(s):  
Water Samples ◽  
Iron Concentration ◽  
Well Water ◽  
Iron Level ◽  
Water Determination ◽  
Drinking Water Standard ◽  
Water Wells ◽  
Fe Content

This study aims to determine the iron content of water wells in Dulalowo and Heledulaa, Gorontalo City. Ten well water samples were taken randomly from five different wells in each district. Water samples at each well consist of top, middle, and bottom water. Determination of iron level using Atomic Absorption Spectrophotometer (AAS) at a wavelength of 248.33 nm. The results showed that the iron concentration of well water in Dulalowo was 0.030 (D1), 0.265 (D2), 0.224 (D3), 0.158 (D4), 0.149 ppm (D5). Meanwhile, iron levels in Heledulaa were 0.100 (H1), 0.039 (H2), 0.159 (H3), 0.198 (H4), and 0.235 ppm (H5). These results prove that the Fe content in the well water in the two districts is still fulfil the drinking water standard which is a maximum of 0.3 mg/L iron.

scholarly journals Penentuan Konsentrasi Efektif Ekstrak Tanaman Patikan Kebo (Euphorbia Hirta) Merah Dan Hijau Dalam Melarutkan Kalsium

2018 ◽  
Vol 6 (4) ◽  
pp. 208
Author(s):  
Hamdiana Hamdiana ◽  
Minarni Rama Jura ◽  
Ratman Ratman
Keyword(s):  
Calcium Phosphate ◽  
Kidney Stones ◽  
Laboratory Experiments ◽  
Effective Concentration ◽  
Distilled Water ◽  
Water Determination ◽  
Euphorbia Hirta ◽  
Flame Photometer

The use of traditional materials is one alternative for the treatment of kidney stones. One of them is utilizing a plant of patikan kebo (Euphorbia hirta). This study is conducted by using laboratory experiments and the extract of the plant of patikan kebo red and patikan kebo green to dissolve the calcium phosphate as a substitute for kidney stones. The extraction of samples is conducted by decoction. The aim of the study is to determine the effective concentration of the extracts of patikan kebo red and green to dissolve calcium and test the effectiveness of the extracts of patikan kebo to dissolve calcium compared to Batugin elixir and distilled water. Determination of the concentration of dissolved calcium in the extracts using a flame photometer. The results show that the extract of patikan kebo red with a concentration of 2.1% is effective in dissolve the calcium with a concentration of 5.2 ppm. The extract of patikan kebo green with a concentration of 27.4% is effective in dissolving the calcium with a concentration of 27.5 ppm. When compared with Batugin elixir and distilled water, Batugin elixir can only dissolve the calcium with concentration 15.3 ppm, while distilled water can only dissolve 3 ppm of the calcium.

Determination of Water in Molasses by Karl Fischer Method

1971 ◽  
Vol 54 (5) ◽  
pp. 1231-1235
Author(s):  
Boris Kviesitis
Keyword(s):  
Collaborative Study ◽  
Oven Method ◽  
Vacuum Oven ◽  
Water Determination ◽  
Cane Molasses ◽  
Karl Fischer ◽  
Karl Fischer Method ◽  
Fischer Method

Abstract Successful use of the method depends on several factors, one of which is the size of the sample because it affects the result of the titration. In this study, 2 sizes of cane molasses samples were tested and the results were compared with those from the vacuum oven method. The use of larger samples with or without the addition of surfactant increased the precision of the analysis. It is recommended that the Karl Fischer method for water determination in molasses and sugar sirups be subjected to collaborative study.

scholarly journals Phytomanagement: perspectives of using of phytoremediation technology in Kazakhstan

2020 ◽  
Vol 159 ◽  
pp. 01003
Author(s):  
Saule Atabayeva ◽  
Saule Kenzhebayeva ◽  
Ravilya Alybayeva ◽  
Saltanatm Аsrandina ◽  
Sabina Shoinbekova
Keyword(s):  
Heavy Metals ◽  
Plant Species ◽  
Bioconcentration Factor ◽  
High Accumulation ◽  
Plant Organs ◽  
Removal Of Heavy Metals ◽  
East Kazakhstan ◽  
High Degree ◽  
Heavy Metals In Soils

The content of heavy metals around the metallurgical plants of East Kazakhstan in the soil and plants growing around these plants was studied. It was determined the concentration of heavy metals in soils, plant organs, it was calculated bioconcentration factor and the level of extraction of heavy metals by sunflower and lawn grasses. The study of sunflower plants and lawn grasses showed that the studied species accumulated a significant amount of heavy metals mainly in the roots. Sunflower plants and lawn grasses had high accumulation activity and accumulated a significant amount of heavy metals in their organs. Determination of the content of heavy metals in the soil showed a significant removal of heavy metals from the soil, which indicates a high degree of phytoextraction of heavy metals by the studied plant species.

Comparison of the Determination Methods for the Calcium Sulfate Content in Phosphogypsum

2014 ◽  
Vol 1051 ◽  
pp. 135-138
Author(s):  
Ling Qin ◽  
Kang Bi Luo ◽  
Hu Ping Li ◽  
Xin Ju Zhao
Keyword(s):  
Calcium Sulfate ◽  
Single Phase ◽  
Phosphate Fertilizer ◽  
Analytical Determination ◽  
Sulfate Content ◽  
Crystal Water ◽  
Water Determination ◽  
Determination Methods ◽  
Main Component

Phosphogypsum is a kind of by-product of the phosphate fertilizer production process, mostly in the form of CaSO4·2H2O, the analytical determination of the content of the main component is the basis for the comprehensive utilization of phosphogypsum. This paper introduces three analytic procedure to determinate the content of crystal water, SO42-, Ca2+ to calculate the CaSO4 content of phosphogypsum, through a comparison between the results of three methods, we can conclude that granularity of phosphogypsum has the smallest influence on the crystal water determination method, but only applicable to determination of gypsum containing crystal water in single phase. However, the measure of SO42-, Ca2+ is not restricted by the phosphogypsum phase, but influenced by the particle size. SO42- determination operation is relatively simple and easy to control, reversely, Ca2+ determination operation is complex and hard to control.

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