Extreme winter cold-induced osmoregulatory, metabolic, and physiological responses in European seabass (Dicentrarchus labrax) acclimatized at different salinities

Islam, Jakiul; Kunzmann, Andreas; Slater, Matthew James

doi:10.1016/j.scitotenv.2021.145202

Cited by 34 publications

(18 citation statements)

References 172 publications

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“…European seabass, D. labrax , and white seabream, Diplodus sargus exposed to both low (12–18°C) and high temperatures (28, 32, and 33.3°C) for 14 days showed higher GST, CAT, LPO and malondialdehyde (MDA) activities compared to fish at 24°C (Madeira et al, 2013; Vinagre et al, 2012). For the same species, significantly increased antioxidants responses were observed at 8 and >32°C compared to 16°C (Islam et al, 2021, 2021b; Islam, Kunzmann, Bögner, et al, 2020). Medaka, Oryzis melastigma showed higher glutathione peroxidase (GPx), CAT, SOD, GR, and LPO activities in fish exposed at 25°C for 3 weeks compared to fish at 18°C (Almeida et al, 2015).…”

Section: Responses Of Aquaculture Fish To Extreme Temperature Eventsmentioning

confidence: 96%

Responses of aquaculture fish to climate change‐induced extreme temperatures: A review

Islam

Kunzmann

Slater

2021

J World Aquaculture Soc

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Climate change‐induced extreme temperature events are becoming more intense and frequent. For fish, temperature is the master abiotic factor that controls and limits fish development and physiology at all stages of aquaculture. Major physiological constraints at the individual level underpin changes in fish growth, hemato‐physiology, metabolism, immune and molecular stress responses to extreme temperature events. Extreme temperature impacts on fish vary among and within the diverse species depending on stress magnitude and associated factors. This review synthesizes the impacts of climate change‐induced extreme temperature events on neuroendocrine, oxidative, metabolic, osmotic, molecular, hemato‐biochemical, and immune responses in fish related to aquaculture. Besides, overall aspects of extreme temperature impacts on fish growth and reproduction are also discussed. Possible mitigation measures to maintain the fish's physiological fitness during extreme temperature events are also addressed. However, studies on the interactive effects of extreme temperature events with other associated environmental stressors are needed across a broader range of species to gain a better understanding of fish response and aquaculture performance during extreme temperature events. Moreover, for fish, studies on alternative species, development of stress‐tolerant strains, and the possibilities of nutritional mitigation measures as a potential option to combat extreme temperature stress are promising and should be pursued in future studies.

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Section: Responses Of Aquaculture Fish To Extreme Temperature Eventsmentioning

confidence: 96%

Responses of aquaculture fish to climate change‐induced extreme temperatures: A review

Islam

Kunzmann

Slater

2021

J World Aquaculture Soc

Self Cite

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“…Glucocorticoid (gr-1, gr-2) and mineral corticoid receptors (mr) are receptors for cortisol found in many tissues including brain and immune cells, which are related to the regulatory role of cortisol in immune defense such as the secretion of proand anti-inflammatory cytokines (Reyes-López et al, 2018). In addition, hsp70 is responsible for repairing and preventing cellular damage from stress-induced protein denaturation and is considered an important indicator for stress in many species including European sea bass (Islam et al, 2021). In the present study, most of the stress-related genes considered, specifically hsp70 and gr-1, in the brain, and hsp70, gr-1, and gr-2 in head kidney, showed an overall time-dependent increasing pattern in expression after stress, findings which are in line with a positive response of the marker genes under consideration to crowding and handling stress in European sea bass and other fish species (Eissa and Wang, 2016).…”

Section: Gene Expression Of Stress and Immune-related Genes In Brain And Head-kidneymentioning

confidence: 99%

Different Fish Meal and Fish Oil Dietary Levels in European Sea Bass: Welfare Implications After Acute Confinement Stress

et al. 2022

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To provide practical feeding management guidelines preceding a stressful episode during farming practices, European sea bass juveniles (initial weight: 72.3 g) were fed for 60-days different fish meal (FM) and fish oil (FO) dietary levels [high (30% FM, 15% FO, FM30/FO15), intermediate (20% FM, 7% FO, FM20/FO7), and low (10% FM, 3% FO, FM10/FO3)] in triplicate conditions. Fish were then fasted for 36 h and exposed to a 2-h acute crowding (80 kg m–3 biomass). Plasma biochemistry, skin mucus parameters and gene expression of stress and immune-related genes were performed before, at 2 and 24 h after crowding. At the end of the trial, the FM10/FO3 group showed lower final body weight, weight gain, and specific growth rate compared to the other treatments. Most of the plasma parameters were mainly affected by crowding condition rather than diet; however, after stress, lactate was higher in the FM30/FO15 group compared to the other treatments. Similarly, protease, antiprotease, peroxidase and lysozyme in skin mucus were mostly affected by crowding conditions, while fish fed FM10/FO3 displayed higher skin mucosal IgM and bactericidal activity against Vibrio anguillarum and V. harveyi. Most of the stress-related genes considered (hsp70 and gr-1 in the brain; hsp70, gr-1 and gr-2 in the head kidney), showed an overall expression pattern that increased over time after stress, in addition, hsp70 in the head kidney was also up-regulated in fish fed FM30/FO15 after stress. Higher plasmatic lactate together with the up-regulation of some stress-related transcripts suggest a higher reactivity to acute crowding of the stress-response mechanism in fish fed high FM and FO dietary levels. Otherwise, the higher skin mucosal IgM and bactericidal activity observed in fish fed FM10/FO3 dietary levels seems to indicate that acute crowding was able to activate a higher pro-inflammatory response in this treatment. Overall, the results of the present study seem to indicate that 10% FM and 3% FO dietary levels might affect stress and immune responses.

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“…In particular, salinity changes in aquatic environments can increase the lysozyme activity, mucosal production, and immune defense in teleosts, and high alkalinity is harmful to most fishes, leading to health damage and even degradation of biomolecules [21]. Recently, although numerous studies have strongly implicated a critical role of Hsps in salinity-alkalinity adaptation [22][23][24], most of them are only focused on responses for a limited number of Hsps rather than the full complement of genes that comprise the Hsp co-chaperone network in salinity-alkalinity adaptation. Therefore, with the saline-alkaline water aquaculture becoming a promising way to accommodate the growing need for the aquaculture industry, it is important to investigate the physiological change and molecular response in fishes adapting to saline-alkaline waters, which could also help to understand their adaptation in the aquatic ecosystem.…”

Section: Introductionmentioning

confidence: 99%

Genomic and Transcriptomic Landscape and Evolutionary Dynamics of Heat Shock Proteins in Spotted Sea Bass (Lateolabrax maculatus) under Salinity Change and Alkalinity Stress

Liu

Wang

et al. 2022

Biology

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The heat shock protein (Hsp) superfamily has received accumulated attention because it is ubiquitous and conserved in almost all living organisms and is involved in a wide spectrum of cellular responses against diverse environmental stresses. However, our knowledge about the Hsp co-chaperon network is still limited in non-model organisms. In this study, we provided the systematic analysis of 95 Hsp genes (LmHsps) in the genome of spotted sea bass (Lateolabrax maculatus), an important aquaculture species in China that can widely adapt to diverse salinities from fresh to sea water, and moderately adapt to high alkaline water. Through in silico analysis using transcriptome and genome database, we determined the expression profiles of LmHsps in response to salinity change and alkalinity stress in L. maculatus gills. The results revealed that LmHsps were sensitive in response to alkalinity stress, and the LmHsp40-70-90 members were more actively regulated than other LmHsps and may also be coordinately interacted as co-chaperons. This was in accordance with the fact that members of LmHsp40, LmHsp70, and LmHsp90 evolved more rapidly in L. maculatus than other teleost lineages with positively selected sites detected in their functional domains. Our results revealed the diverse and cooperated regulation of LmHsps under alkaline stress, which may have arisen through the functional divergence and adaptive recruitment of the Hsp40-70-90 co-chaperons and will provide vital insights for the development of L. maculatus cultivation in alkaline water.

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Extreme winter cold-induced osmoregulatory, metabolic, and physiological responses in European seabass (Dicentrarchus labrax) acclimatized at different salinities

Cited by 34 publications

References 172 publications

Responses of aquaculture fish to climate change‐induced extreme temperatures: A review

Responses of aquaculture fish to climate change‐induced extreme temperatures: A review

Different Fish Meal and Fish Oil Dietary Levels in European Sea Bass: Welfare Implications After Acute Confinement Stress

Genomic and Transcriptomic Landscape and Evolutionary Dynamics of Heat Shock Proteins in Spotted Sea Bass (Lateolabrax maculatus) under Salinity Change and Alkalinity Stress

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