Temperature alters the oxidative and metabolic biomarkers and expression of environmental stress-related genes in chocolate mahseer (Neolissochilus hexagonolepis)

Dash, Pragyan; Siva, C.; Tandel, Ritesh Shantilal; Bhat, Raja Aadil Hussain; Gargotra, Pankaj; Chadha, Narinder Kumar; Pandey, Pramod Kumar

doi:10.1007/s11356-023-25325-w

Cited by 10 publications

(5 citation statements)

References 100 publications

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“…In the present study, ALT and AST levels increased at temperatures of 34 ºC and 37 ºC compared to the others. This indicates that the hepatic metabolism of pirarucu has a greater demand placed on it and may become impaired with increases in temperature, which suggests the impairment of the organ and its basic physiological functions, as found for chocolate mahseer (Neolissochilus hexagonolepis) by (Dash et al 2023). Additionally, the withdrawal of the thermal stimulus and the return to environmental temperature levels could normalize the activity levels of the enzymes, since at temperatures of 34 ºC and 37 ºC, the sh could not choose ranges that produced thermal comfort (Li et al 2022).…”

Section: Discussionmentioning

confidence: 85%

Experiencing extremes: how Arapaima gigas (Schinz, 1822) deals with increasing water temperatures

Amanajás,

Silva,

Paula-Silva

et al. 2024

Preprint

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Temperature regulates the life cycle of aquatic organisms. However, in the current climate change scenario, the warming of the planet is putting the resilience of many species at risk, resulting in organic disturbances. In the Amazon, the effects of warming demonstrate the low thermal tolerance of species that are already living near their upper temperature limits. In this study, we evaluated the physiological and biochemical responses of specimens of pirarucu (Arapaima gigas) exposed to increasing levels of water temperature (normal environmental temperature of the period (Tenv), 31 ºC, 34 ºC and 37 ºC) for a period of 96 h, in triplicate (N = 3). Our main findings show an increase in hematological parameters with a temperature elevation up to 34 ºC, followed by suppression at 37 ºC. Increases in glucose and lactate levels and reduced triglyceride levels were observed with the elevation in water temperature. Cholesterol levels remained unchanged throughout the experimental period. ALT and AST enzymes increased at 34 and 37 ºC. Oxidative stress levels were elevated at Tenv, and were higher at 37 ºC when compared to animals at 31 ºC. In the liver, the activities of SOD and GPx enzymes increased with the increase in temperature, while the CAT enzyme showed reduced activity at 37 ºC. Thus, the data from the present study show that the pirarucu is a species that responds to increasing levels of water temperature. However, a temperature of 37 ºC seems to offer a greater risk to the species’ ability to cope with the effects of higher temperatures, as it requires greater energy expenditure and induces oxidative stress. Thus, the pirarucu seems to cope better with temperatures that do not exceed 34 ºC.

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Section: Discussionmentioning

confidence: 85%

Experiencing extremes: how Arapaima gigas (Schinz, 1822) deals with increasing water temperatures

Amanajás,

Silva,

Paula-Silva

et al. 2024

Preprint

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“…These studies consistently reported comparable findings, including growth patterns and the use of condition factors greater than 1 as an indicator of good fish health. Notably, in recent times, reports of a decline in the population of chocolate mahseer, along with a reduction in fish faunal diversity as a whole, have emerged, attributable to various factors such as overexploitation, habitat degradation, destructive fishing practices, pollution, temperature fluctuations and others (Sarkar et al, 2015;Dash et al, 2023).…”

Section: Resultsmentioning

confidence: 99%

Bionomics, length-weight relationship and condition factor of Chocolate mahseer, Neolissochilus hexagonolepis from Dikhu River, Nagaland

Kechu,

Ezung,

Pankaj

2023

JEB

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Aim: Chocolate mahseer (Neolissochilus hexagonolepis) is widely distributed in the North-eastern region of India. The study aimed to evaluate the bionomic aspects of chocolate mahseer of Nagaland to validate its status. Methodology: Fish Neolissochilus hexagonolepis were collected from March 2019 to February 2020 from Dikhu River, Nagaland. Regression analysis for morphometric study was conducted using the least square method. Logarithmically transformed total length and weight data were utilized to determine the correlation coefficient 'r', coefficient of determination 'r²', and condition factor for male, female, and pooled groups. Results: The highest correlation was seen in standard length ('r' = 0.9968), and the least correlation was observed in eye diameter ('r' = 0.7769). The length-weight relationship exhibited two growth patterns, namely negative allometric growth, which were represented by females (b = 2.807) and pooled (b = 2.868) population, whereas the population of males displayed positive allometric growth (b = 3.015). The correlation coefficient and coefficient of determination of males, females and the pooled sexes showed a positive correlation with relation to its length and weight ranging from 'r' = 0.970 - 0.981 and 'r²' = 0.941 - 0.961, respectively. The condition factor for all the groups ranged from 1.10 - 1.14. Interpretation: Morphometric traits like standard length, snout length, head length etc. (dependent variable) were analyzed on total length (independent variable), signifying a positive correlation among variables. Length-weight relationship displayed high significance between length and weight parameters. The condition factor for all the groups indicated general well-being of fish condition in their environment. Key words: Chocolate mahseer, Condition factor, Length-weight relationship, Morphometric studies

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“…Exposure to a range of temperatures, including up to 31°C, can result in reduced nitric oxide concentration, aspartate transaminase (AST), and alanine transaminase (ALT), particularly at the lower temperature of 15°C 55 . The expression of Hsp47 increased in both the 15°C and 31°C groups, while Hsp70 levels were higher in the 27°C and 31°C groups 32 . Likewise, in European seabass (Dicentrarchus labrax) fish reared at temperatures of 8°C and 32°C, there was a notable increase in the expression of the heat shock proteins (HSP70) gene in both the dorsal muscle and kidney tissue 22 .…”

Section: Effect Of Thermal Stress On Blood Cells Cortisol and Glucose...mentioning

confidence: 86%

“…Similarly, when chocolate mahseer (Neolissochilus hexagonolepis) larvae has been exposed to thermal stress, this led to an elevation in the basal mRNA level of glutathione S-transferase alpha 1 (GSTa1) and increased activities of catalase (CAT), glutathione reductase (GR), and GST enzymes. Conversely, the expression of superoxide dismutase 1 (SOD1) in the whole-body homogenate was found to be downregulated 32 . Accumulating studies have showed that exposure to thermal stress increases mRNA expression of apoptotic genes such as p53, caspase3 and bcl2 and then downregulated in fishes including turbot (Scophthalmus maximus) overtime.…”

Section: Impacts Of Thermal Stress On Antioxidant Enzymes Apoptotic G...mentioning

confidence: 99%

Divergent perspectives on the synergistic impacts of thermal-chemical stress on aquatic biota within the framework of climate change scenarios

Fathy

2024

Chemosphere

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Temperature alters the oxidative and metabolic biomarkers and expression of environmental stress-related genes in chocolate mahseer (Neolissochilus hexagonolepis)

Cited by 10 publications

References 100 publications

Experiencing extremes: how Arapaima gigas (Schinz, 1822) deals with increasing water temperatures

Experiencing extremes: how Arapaima gigas (Schinz, 1822) deals with increasing water temperatures

Bionomics, length-weight relationship and condition factor of Chocolate mahseer, Neolissochilus hexagonolepis from Dikhu River, Nagaland

Divergent perspectives on the synergistic impacts of thermal-chemical stress on aquatic biota within the framework of climate change scenarios

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