scholarly journals Evaluation of Metabolic Enzymes in Response to Excel Mera 71, a Glyphosate-Based Herbicide, and Recovery Pattern in Freshwater Teleostean Fishes

2014 ◽  
Vol 2014 ◽  
pp. 1-6 ◽  
Author(s):  
Palas Samanta ◽  
Sandipan Pal ◽  
Aloke Kumar Mukherjee ◽  
Apurba Ratan Ghosh
Keyword(s):  
Aquatic Organisms ◽  
Metabolic Enzymes ◽  
Heteropneustes Fossilis ◽  
Fish Tissues ◽  
Compensatory Response ◽  
Anabas Testudineus ◽  
Recovery Pattern ◽  
Glyphosate Formulation ◽  
Excel Mera 71 ◽  
Alt Activity

Metabolic enzymes such as alanine aminotransferase (ALT), aspartate aminotransferase (AST), and alkaline phosphatase (ALP) were evaluated in Indian teleostean fishes, namely,Anabas testudineus(Bloch) andHeteropneustes fossilis(Bloch), for an exposure to 30 days of Excel Mera 71 (17.2 mg/L), a glyphosate formulation, and subsequent depuration under Liv.52, a plant extract at a dose of 187.5 mg/d/250 L for the same period in the same tissues under laboratory condition. ALT activity was significantly increased (P<0.05) in all the tissues and raised up to 229.19% in liver ofA. testudineus(229.19%) and 128.61% in liver ofH. fossilis. AST also increased significantly (P<0.05) and was maximum in liver ofH. fossilis(526.19%) and minimum in gill ofA. testudineus(124.38%). ALP activity was also raised highly in intestine ofH. fossilis(490.61%) but was less in kidney ofH. fossilis(149.48%). The results indicated that Excel Mera 71 caused alterations in the metabolic enzymatic activities in fish tissues and AST showed the highest alteration in both the fishes, while lowest in ALP and ALT inA. testudineusandH. fossilis, respectively. During depuration under Liv.52, all the enzyme activities came down towards the control condition which indicated the compensatory response by the fish against this herbicidal stress and it was in the following order: AST > ALT > ALP, inA. testudineus, whileH. fossilisshowed the following trend: ALT > AST > ALP. Therefore, these parameters could be used as indicators of herbicidal pollution in aquatic organisms and were recommended for environmental monitoring for investigating the mechanism involved in the recovery pattern.

scholarly journals The acute toxicity of the metaldehyde on the climbing perch

2018 ◽  
Vol 34 ◽  
pp. 02031
Author(s):  
Syamimi Wahida Mohamad Ismail ◽  
Farrah Aini Dahalan ◽  
Ammar Zakaria ◽  
Ali Yeon Mad Shakaff ◽  
Siti Aqlima Ahmad ◽  
...  
Keyword(s):  
Acute Toxicity ◽  
Aquatic Organisms ◽  
Fish Population ◽  
Behavioural Response ◽  
Paddy Fields ◽  
Fish Mortality ◽  
Anabas Testudineus ◽  
Climbing Perch ◽  
Physical Changes

In Asia, Climbing perch (Anabas testudineus) is commonly found in paddy fields and irrigation systems. Due to its habitat, Climbing perch is exposed to toxic pesticides used in paddy fields such as metaldehyde which is one of the most widely used molluscicide. This study aims to determine the acute toxicity Lethal Concentration50 (LC50) of metaldehyde and its effect on the behaviour and physical changes of the Climbing perch. The fish mortality responses to six different metaldehyde concentrations ranging from 180 to 330 mg/L were investigated. The 96-h LC50 values were determined and analysed using three different analysis methods which is arithmetic, logarithmic and probit graphic. The LC50 values obtained in this study were 239, 234 and 232 mg/L, respectively. After 96-h of exposure to metaldehyde, the fish showed a series of abnormal behavioural response in all cases: imbalance position, and restlessness of movement. The LC50 values show that metaldehyde is moderately toxic to the Climbing perch indicating that metaldehyde is not destructive to Climbing perch. However, long term exposure of aquatic organisms to the metaldehyde means a continuous health risk for the fish population as they are more vulnerable and it is on high risk for human to consume this toxicated fishes.

scholarly journals Growth and Yield Performance of Chingi, Heteropneustes fossilis and Koi, Anabas testudineus in Bangladesh under Semi-Intensive Culture Systems

2013 ◽  
Vol 2 (2) ◽  
pp. 15-24 ◽  
Author(s):  
BK Chakraborty ◽  
NN Nur
Keyword(s):  
Economic Status ◽  
Stocking Density ◽  
Growth And Yield ◽  
Total Biomass ◽  
Heteropneustes Fossilis ◽  
Feed Conversion ◽  
Anabas Testudineus ◽  
Commercial Fish ◽  
The People ◽  
Mean Differences

Production potential of shingi, Heteropneustes fossilis and koi, Anabas testudineus in polyculture were assessed at a stocking density of 2, 47,000 and 3, 70,500 ha-1, respectively in treatment T1 and T2. Monoculture of H. fossilis and A. testudineus was designed at a stocking density of 2, 47,000 ha-1 in treatment T3 and T4, respectively. Culture period of shingi was 120 days and koi was 100 days in all treatments. All fingerlings were of the same age at stocking, with a mean weight of 2.54±0.08 g for shingi and 0.50±0.01 g for koi, respectively. Commercial fish feeds (30.0% crude protein) supplied at the rate of 100 to 5% of total biomass twice daily. Fish production in treatment T1, T2, T3 and T4 were 18,803±111, 12,388±115, 10,042±5 kg ha-1 day-120 and 22,176±7 kg ha-1 day-100, respectively. The feed conversion ratio (FCR) was significantly (P<0.05) lower in T4 than that of the other three treatments. The net financial benefits incurred from treatment T1, T2, T3 and T4 were Bangladeshi Taka 17,65,769; 6,691; 15,83,990 and 16,29,409 BDT ha-1, respectively. The mean differences of gross yields and net benefits among different treatments were significant (P<0.05). The polyculture technology of shingi and koi, and monoculture technology of koi may help to meet the dietary needs and improve the socio-economic status of the people of Bangladesh.DOI: http://dx.doi.org/10.3329/ijarit.v2i2.14010 Int. J. Agril. Res. Innov. & Tech. 2 (2): 15-24, December, 2012

Effects of Glyphosate-Based Herbicide (Excel Mera 71) on Digestive Enzymes and Recovery Pattern in Teleostean Fishes

2017 ◽  
Vol 72 (1) ◽  
pp. 54-60 ◽  
Author(s):  
Palas Samanta ◽  
Sandipan Pal ◽  
Aloke Kumar Mukherjee ◽  
Tarakeshwar Senapati ◽  
Apurba Ratan Ghosh
Keyword(s):  
Digestive Enzymes ◽  
Recovery Pattern ◽  
Excel Mera 71

scholarly journals Toxicity Evaluation of Quantum Dots (ZnS and CdS) Singly and Combined in Zebrafish (Danio rerio)

2019 ◽  
Vol 17 (1) ◽  
pp. 232 ◽  
Author(s):  
Beatriz Matos ◽  
Marta Martins ◽  
Antonio Cid Samamed ◽  
David Sousa ◽  
Isabel Ferreira ◽  
...  
Keyword(s):  
Oxidative Stress ◽  
Lipid Peroxidation ◽  
Adverse Effects ◽  
Danio Rerio ◽  
Aquatic Organisms ◽  
Aquatic Biota ◽  
Glutathione S Transferase ◽  
Fish Tissues ◽  
Oxidative Stress Enzymes ◽  
Living Organisms

The exponential growth of nanotechnology has led to the production of large quantities of nanomaterials for numerous industrial, technological, agricultural, environmental, food and many other applications. However, this huge production has raised growing concerns about the adverse effects that the release of these nanomaterials may have on the environment and on living organisms. Regarding the effects of QDs on aquatic organisms, existing data is scarce and often contradictory. Thus, more information is needed to understand the mechanisms associated with the potential toxicity of these nanomaterials in the aquatic environment. The toxicity of QDs (ZnS and CdS) was evaluated in the freshwater fish Danio rerio. The fishes were exposed for seven days to different concentrations of QDs (10, 100 and 1000 µg/L) individually and combined. Oxidative stress enzymes (catalase, superoxide dismutase and glutathione S-transferase), lipid peroxidation, HSP70 and total ubiquitin were assessed. In general, results suggest low to moderate toxicity as shown by the increase in catalase activity and lipid peroxidation levels. The QDs (ZnS and CdS) appear to cause more adverse effects singly than when tested combined. However, LPO results suggest that exposure to CdS singly caused more oxidative stress in zebrafish than ZnS or when the two QDs were tested combined. Levels of Zn and Cd measured in fish tissues indicate that both elements were bioaccumulated by fish and the concentrations increased in tissues according to the concentrations tested. The increase in HSP70 measured in fish exposed to 100 µg ZnS-QDs/L may be associated with high levels of Zn determined in fish tissues. No significant changes were detected for total ubiquitin. More experiments should be performed to fully understand the effects of QDs exposure to aquatic biota.

Assessment of adverse outcome of Excel Mera 71 in Anabas testudineus by histological and ultrastructural alterations

2018 ◽  
Vol 205 ◽  
pp. 19-24 ◽  
Author(s):  
Palas Samanta ◽  
Sandipan Pal ◽  
Tarakeshwar Senapati ◽  
Aloke Kumar Mukherjee ◽  
Apurba Ratan Ghosh
Keyword(s):  
Adverse Outcome ◽  
Anabas Testudineus ◽  
Ultrastructural Alterations ◽  
Excel Mera 71

scholarly journals Effects of Fly Ash Geopolymer Leachate Alkalinity on Lethality of Freshwater Climbing Perch, Anabas testudineus

2019 ◽  
Vol 1 ◽  
pp. 1-7
Author(s):  
Hariz Zain ◽  
Norshah Aizat Shuaib ◽  
Mohd Mustafa Al Bakri Abdullah ◽  
Meor Ahmad Faris
Keyword(s):  
Fly Ash ◽  
Building Materials ◽  
Ph Value ◽  
Aquatic Organisms ◽  
Anabas Testudineus ◽  
Ph Values ◽  
Climbing Perch ◽  
Naoh Solution ◽  
Reduction Of Co2 ◽  
Geopolymer Paste

The application of geopolymer materials from industrial waste as binder to cast concrete contributes to a reduction of CO2 than OPC but still contribute to other environmental adverse effect such as freshwater toxicity. The leaching of alkali from geopolymer building materials increases the alkalinity or pH values of affected water body and can cause damage the biotic ecosystem and aquatic organisms. Therefore, the increasing level of alkalinity which is pH values from the leaching of geopolymer materials and OPC caused the lethality of Anabas testudineus (climbing perch) were determined. A 50mm x 50mm x 50mm dimensional fly ash geopolymer paste with 12M NaOH solution (Na2SiO3 : NaOH = 2.5:1) and a 50mm x 50mm x 50mm dimensional OPC with the ratio of (Solid : Liquid = 3 : 1) were immersed accordingly into each cylindrical containers that contained an Anabas testudineus (climbing perch) in 500ml paddy swamp water. The fishes were observed and the pH readings were calculated. The test was ended until the fish dead. Finally, the mortality limit pH value of Anabas testudineus for fly ash geopolymer paste is at pH 11.0, while OPC is at pH 11.5. The peak of alkali leaching of fly ash geoplymer paste is between 0.5 – 1.0 hours while for OPC is between 0.25 – 0.5 hours. As the conclusion, OPC gives severe adverse effects to the mortality of Anabas testudineus than fly ash geopolymer paste due to the leaching of OH- and other alkali anions. Anabas testudineus can live 10 hours in fly ash leaching media but only can live 1 hour in OPC leaching media.

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