Remarkable variability in stress responses among subtropical coastal marine teleosts

Bordin, Daliana; Freire, Carolina A.

doi:10.1007/s00227-021-03929-5

Cited by 4 publications

(5 citation statements)

References 78 publications

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“…In addition, nearly all MAPKs in both control and treatment groups under all stresses exhibited the highest global expression levels in the head kidney. As is well known, the head kidney is an essential organ which comprises cortisolproducing inter-renal cells (Best and Gilmour, 2022), whereas cortisol is the primary glucocorticoid released when teleosts are exposed to stress and it plays key roles in the stress response of teleosts (Bordin and Freire, 2021). Hence, we hold the opinion that the head kidney should be selected as the main tissue for stress studies in teleosts.…”

Section: Discussionmentioning

confidence: 99%

Genome-wide identification of the MAPK gene family in turbot and its involvement in abiotic and biotic stress responses

Zheng

Xu²,

Zechen³

et al. 2022

Front. Mar. Sci.

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The mitogen-activated protein kinase (MAPK) gene family performs crucial roles in cell division, migration, development, apoptosis, inflammatory response, and abiotic and biotic stress responses. However, very little information is available about the MAPKs in turbot (Scophthalmus maximus). In this study, 15 turbot MAPKs (SmMAPKs) were identified throughout the whole genome, and their basic chemical and physical properties and subcellular localization were illustrated. All SmMAPKs contained the serine/threonine protein kinases, catalytic domain (S_TKc, SMART00220). Phylogenetic analysis revealed that SmMAPKs were classified into three subfamilies, namely, c-Jun NH2-terminal kinase (JNK), extracellular signal-regulated kinase (ERK), and p38. Conserved motif and gene structure analysis revealed high levels of conservation within and between phylogenetic subfamilies. Expression patterns of MAPKs in distinct tissues and under diverse abiotic and biotic stresses were examined using the published available RNA-seq data sets. As a result, SmMAPKs showed obviously tissue-specific expression. Furthermore, 7 and 10 candidate stress-responsive MAPK genes were detected under abiotic and biotic stresses, respectively, among which five common MAPK genes, namely, SmMAPK4 (ERK4), SmMAPK6 (ERK3), SmMAPK11 (p38β), SmMAPK12b (p38γ), and SmMAPK15 (ERK7/8) showed extremely significant responses to both abiotic and biotic stresses, demonstrating their potential functions in comprehensive antistress. These results demonstrate that MAPKs might play vital roles in response to various abiotic and biotic stresses in turbot, which would contribute to making scientific preventive measures to environmental changes in the process of farming and promoting the development of selective breeding for comprehensive stress resistance in turbot.

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Section: Discussionmentioning

confidence: 99%

Genome-wide identification of the MAPK gene family in turbot and its involvement in abiotic and biotic stress responses

Zheng

Xu²,

Zechen³

et al. 2022

Front. Mar. Sci.

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“…Cortisol works raising circulating glucose levels across species ( Mommsen et al, 1999 ; Sapolsky et al, 2000 ), and their concurrent increase would reflect the nature and intensity of stress stimuli as well as the different stress species-specific susceptibility ( Fanouraki et al, 2011 ; Bordin and Freire, 2021 ). Thus, both glucose and cortisol levels increased at a population level in a HD environment ( Table 2 ), but the gathered biomarker analysis revealed a negative correlation between them in HD fish via the interconnections driven by different hepatic molecular transcripts ( Figure 6 ), which might dictate a negative feedback loop that limits cortisol release promoting the use of blood glucose not only as a fast metabolic fuel, but also as a major antioxidant agent.…”

Section: Discussionmentioning

confidence: 99%

Understanding how high stocking densities and concurrent limited oxygen availability drive social cohesion and adaptive features in regulatory growth, antioxidant defense and lipid metabolism in farmed gilthead sea bream (Sparus aurata)

Holhorea,

Naya-Català,

Belenguer

et al. 2023

Front. Physiol.

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The study combined the use of biometric, behavioral, physiological and external tissue damage scoring systems to better understand how high stocking densities drive schooling behavior and other adaptive features during the finishing growing phase of farmed gilthead sea bream in the Western Mediterranean. Fish were grown at three different final stocking densities (LD, 8.5 kg/m3; MD, 17 kg/m3; HD, 25 kg/m3). Water oxygen concentration varied between 5 and 6 ppm in LD fish to 3–4 ppm in HD fish with the summer rise of water temperature from 19°C to 26°C (May–July). HD fish showed a reduction of feed intake and growth rates, but they also showed a reinforced social cohesion with a well-defined endogenous swimming activity rhythm with feeding time as a main synchronization factor. The monitored decrease of the breathing/swimming activity ratio by means of the AEFishBIT data-logger also indicated a decreased energy partitioning for growth in the HD environment with a limited oxygen availability. Plasma glucose and cortisol levels increased with the rise of stocking density, and the close association of glycaemia with the expression level of antioxidant enzymes (mn-sod, gpx4, prdx5) in liver and molecular chaperones (grp170, grp75) in skeletal muscle highlighted the involvement of glucose in redox processes via rerouting in the pentose-phosphate-pathway. Other adaptive features included the depletion of oxidative metabolism that favored lipid storage rather than fatty acid oxidation to decrease the oxygen demand as last electron acceptor in the mitochondrial respiratory chain. This was coincident with the metabolic readjustment of the Gh/Igf endocrine-growth cascade that promoted the regulation of muscle growth at the local level rather than a systemic action via the liver Gh/Igf axis. Moreover, correlation analyses within HD fish displayed negative correlations of hepatic transcripts of igf1 and igf2 with the data-logger measurements of activity and respiration, whereas the opposite was found for muscle igf2, ghr1 and ghr2. This was indicative of a growth-regulatory transition that supported a proactive instead of a reactive behavior in HD fish, which was considered adaptive to preserve an active and synchronized feeding behavior with a minimized risk of oxidative stress and epidermal skin damage.

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“…Likewise, bonefish Albula spp. in a study by Brownscombe et al (2015) experienced prolonged air exposure (2 min), whereas Kelp Bass were handled for an average of 47 s. Variability in the literature regarding the magnitude of stress responses in fish may also be due to interspecific differences in life history characteristics (Barton 2002;Fanouraki et al 2011;Bordin and Freire 2021) or the environmental conditions during capture (e.g., water temperature; Cooke and Suski 2005;Gingerich et al 2007;Brownscombe et al 2015). Water temperature has sometimes been identified as a contributing factor to fish stress and postrelease mortality (Cooke and Suski 2005), but temperature did not significantly influence fish stress in the present study, either because Kelp Bass are resilient to thermal changes or because extreme temperature conditions were never experienced.…”

Section: Discussionmentioning

confidence: 99%

“…(2015) experienced prolonged air exposure (2 min), whereas Kelp Bass were handled for an average of 47 s. Variability in the literature regarding the magnitude of stress responses in fish may also be due to interspecific differences in life history characteristics (Barton 2002; Fanouraki et al. 2011; Bordin and Freire 2021) or the environmental conditions during capture (e.g., water temperature; Cooke and Suski 2005; Gingerich et al. 2007; Brownscombe et al.…”

Section: Discussionmentioning

confidence: 99%

Physiological and Behavioral Effects of Angling Stress on Kelp Bass, an Important Game Fish in Southern California

McGarigal

Lowe

2022

Mar Coast Fish

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Game fish populations in North America face increasing pressure from recreational anglers, yet sublethal effects from mandatory catch‐and‐release regulations remain unknown for many targeted species. In southern California, Kelp Bass Paralabrax clathratus populations have significantly declined in recent decades, prompting changes in management and increasing release rates. To assess acute effects of current fishing regulations, we collaborated with recreational anglers to evaluate short‐term, sublethal impacts of capture stress on Kelp Bass physiology and behavior. To evaluate the timeline and magnitude of physiological stress, blood samples were collected at time points (10–120 min) after angling and confinement and compared to control fish sampled in less than 3 min. Postrelease recovery was determined by comparing biomarker levels between control fish and recaptured fish that were rapidly sampled after a time at liberty ranging from 3 h to 186 d. Biomarker levels in fish recaptured multiple times were compared to previous samples to evaluate repetitive angling effects on physiological responses. Circulating cortisol, glucose, and lactate were elevated and steadily increased in the hour after capture, although angling duration and handling duration were not correlated with biomarker response. Fish size significantly affected fish stress, with larger fish experiencing less stress and rapid recovery within 24 h. Behavioral control fish, which ingested acoustic accelerometers hidden inside bait, exhibited strong diel activity that was reduced for 30 h in angled fish. Tracked individuals exhibited high individual variation in rate of movement and area use, with no noticeable postrelease impacts. Although this study found Kelp Bass to be resilient to angling stresses, evaluation of long‐term effects from catch and release is warranted. This fishery may also benefit from slot limit regulations, improved angler engagement programs, and education on best practices that minimize fish stress during catch and release.

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Remarkable variability in stress responses among subtropical coastal marine teleosts

Cited by 4 publications

References 78 publications

Genome-wide identification of the MAPK gene family in turbot and its involvement in abiotic and biotic stress responses

Genome-wide identification of the MAPK gene family in turbot and its involvement in abiotic and biotic stress responses

Understanding how high stocking densities and concurrent limited oxygen availability drive social cohesion and adaptive features in regulatory growth, antioxidant defense and lipid metabolism in farmed gilthead sea bream (Sparus aurata)

Physiological and Behavioral Effects of Angling Stress on Kelp Bass, an Important Game Fish in Southern California

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