2023
DOI: 10.3390/ani13081340
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A Systematic Review and Meta-Analysis of Basal and Post-Stress Circulating Cortisol Concentration in an Important Marine Aquaculture Fish Species, European Sea Bass, Dicentrarchus labrax

Abstract: Background: European sea bass is a species characterized by high and dispersed cortisol levels. The aim of the present study was to analyze all published data on basal and post-acute stress cortisol levels in this species. Methods: For this systematic review and meta-analysis the Web of Science and Scopus databases were searched for papers reporting plasma or serum cortisol levels in E. sea bass, without language or date restrictions. Data were extracted directly for the reported results and were analyzed sepa… Show more

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Cited by 5 publications
(3 citation statements)
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“…Since the levels are similar between diet groups at T4, this could suggest that differences observed at T3 could be linked to a possible acute stress that happened before sampling. It is worth mentioning that care was taken to minimize stress-induced by handling for both fish diet groups during sampling, and that cortisol values measured at T3 for both diet groups were within the range of what can be expected for basal level in European sea bass 74 , 75 . Moreover, we did not measure any significant difference between the two diet groups regarding glucose concentration or in the expression of Hsp70 protein, a reliable stress indicator in fish, including European sea bass 35 (although some high Hsp70 levels were measured in some samples of fish fed the low marine protein diet at both T3 and T4; see Fig.…”
Section: Discussionmentioning
confidence: 72%
“…Since the levels are similar between diet groups at T4, this could suggest that differences observed at T3 could be linked to a possible acute stress that happened before sampling. It is worth mentioning that care was taken to minimize stress-induced by handling for both fish diet groups during sampling, and that cortisol values measured at T3 for both diet groups were within the range of what can be expected for basal level in European sea bass 74 , 75 . Moreover, we did not measure any significant difference between the two diet groups regarding glucose concentration or in the expression of Hsp70 protein, a reliable stress indicator in fish, including European sea bass 35 (although some high Hsp70 levels were measured in some samples of fish fed the low marine protein diet at both T3 and T4; see Fig.…”
Section: Discussionmentioning
confidence: 72%
“…Cortisol levels are closely related to blood glucose levels, impacting energy efficiency (4) and fish health indicator (3). Cortisol levels are a crucial hormone in the physiology and biology of fish (47) in the process of transcriptional modulation of glucose, namely glucose levels in fish blood (6,18) so that fish can meet their energy needs in stressful situations. The energy resulting from a decrease in cortisol needed during maintenance can be utilized by mobilizing growth reproduction processes and plays an essential role in the osmoregulation and acclimatization processes of aquatic animals (37).…”
Section: Resultsmentioning
confidence: 99%
“…All sampled fish were subjected to a 24 h fasting period prior to sampling and were humanely euthanized using an overdose of tricaine methanesulphonate (MS-222 Pharmaq, AquaVet S.A., Nea Filadelfia, Greece) at a concentration of 300 mg/L [28]. Given the known susceptibility of seabass to stress, particularly during handling [29], no additional sampling was undertaken during the trial to mitigate potential adverse effects on fish health, welfare, feeding behavior, or associated indicators.…”
Section: Fish Samplingmentioning
confidence: 99%