Flesh Quality in Snapper, <i>Pagrcrs auratus</i>, Affected by Capture Stress

Lowe, Tim E.; Ryder, John M.; Carragher, John; Wells, R. M. G.

doi:10.1111/j.1365-2621.1993.tb09355.x

Cited by 136 publications

(99 citation statements)

References 23 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Ling & Wells 1985b;Bollard et al 1993;Lowe & Wells 1996). This research confirmed that, as in the laboratory, the primary stress response of fish to angling/handling involved sequential increases of catecholamines and then corticosteroids (Lowe et al 1993;Lowe & Wells 1996), serving to modulate the metabolite status, the blood oxygen carrying capacity, blood viscosity and even cell maintenance function of fish to satisfy and protect against the sudden increase in energy demand (Ling & Wells 1985b;Lowe et al 1993;Ryan et al 1995;Lowe & Wells 1996). Of particular interest are the manipulative experiments of Bollard et al (1993) that artificially raised plasma cortisol levels in snapper and showed, for the first time, that cortisol in fish retains lactate in circulation which, through follow-up research, is now believed to be a mechanism providing metabolic fuel postexercise (Eros & Milligan 1996).…”

Section: Reproductive Behavioursupporting

confidence: 72%

“…The metabolic response of fish to handling and capture stress Energy is the fundamental currency of life, so the impact of stress on the subsequent day-to-day activity of fish (or even flesh quality of angled fish) is influenced strongly by the manner in which useable energy (adenosine triphosphate [ATP]) is created and consumed through aerobic and anaerobic metabolic pathways (Wells 1987;Lowe et al 1993). The coastal waters around Leigh are host to a wealth of sport fishes, so the early efforts of physiologists at the Leigh Laboratory were dedicated to understanding the metabolic effect of stress from line capture and associated handling (Ling & Wells 1985a, b;Wells 1987).…”

Section: Reproductive Behaviourmentioning

confidence: 99%

See 1 more Smart Citation

Fish physiology and ecology: the contribution of the Leigh Laboratory to the collision of paradigms

Pankhurst

Herbert

2013

New Zealand Journal of Marine and Freshwater Research

View full text Add to dashboard Cite

The often pragmatic division of studies of function (physiology), and the regulation of distribution and abundance of organisms (ecology), as laboratory and field studies respectively, can create an unhelpful intellectual division that runs the risk of ignoring the interaction of physiology, behaviour and environment that regulates the lives of animals in the wild. This review examines the historical and current contribution of ecophysiological research conducted from the University of Auckland's Leigh Laboratory in bridging these paradigms, and generating new insights into animal function and community organisation. The assessment focuses on endocrine control processes, and metabolic and behavioural responses of fish to artificial and natural stressors, and examines tracks of future research needed to underpin understanding of likely effects of predicted environmental change on individuals and populations.

show abstract

Section: Reproductive Behavioursupporting

confidence: 72%

Section: Reproductive Behaviourmentioning

confidence: 99%

Fish physiology and ecology: the contribution of the Leigh Laboratory to the collision of paradigms

Pankhurst

Herbert

2013

New Zealand Journal of Marine and Freshwater Research

View full text Add to dashboard Cite

show abstract

“…The stress responsiveness of turkeys (Meleagris gallopavo; Brown and Nestor, 1973), chickens (Gallus domesticus; Gross and Siegel, 1985) and the Japanese quail (Coturnix coturnix japonica; Satterlee and Johnson, 1988) have been modified by selective breeding strategies, with varying degrees of success. A similar approach has been considered with respect to aquacultured fish in which frequent or prolonged exposure to stressors significantly and adversely affects growth (Pickering, 1993;Pankhurst and Van Der Kraak, 1997), reproductive performance (Pickering et al, 1987a;Campbell et al, 1992Campbell et al, , 1994, the immune system (Balm, 1997) and flesh quality (Lowe et al, 1993;Sigholt et al, 1997). It is argued that in an environment in which stressful stimuli are frequent or prolonged, fish which possess a low level of responsiveness to stress will be less severely affected than fish displaying a more pronounced reactivity to stress (Pottinger and Pickering, 1997).…”

Section: Introductionmentioning

confidence: 99%

Modification of the Plasma Cortisol Response to Stress in Rainbow Trout by Selective Breeding

Pottinger

Carrick

1999

General and Comparative Endocrinology

353

202

View full text Add to dashboard Cite

The NERC and CEH trademarks and logos ('the Trademarks') are registered trademarks of NERC in the UK and other countries, and may not be used without the prior written consent of the Trademark owner. ABSTRACTMale and female rainbow trout were segregated into high-and low-responding individuals (HR, LR) on the basis of their plasma cortisol response to a 3 h period of confinement imposed at five, monthly, intervals. Consistent divergence was obtained in the responsiveness of the two groups, although the difference between LR and HR groups was greater in female fish (56 c.f. 116 ng ml -1 ) than in males (45 c.f. 69 ng ml -1 ). Progeny groups (full-sib families) were obtained from the pairing of HR males and females and LR males and females. A third progeny group (US) was obtained by random pairing of parents which were not selected as HR or LR. Post-stress plasma cortisol levels in the progeny were first tested at 6 months after hatch and were significantly correlated with the response of the corresponding parental groups, HR>US>LR (178, 126, 81 ng ml -1 respectively). The difference in responsiveness between LR and HR groups was demonstrated in all four subsequent tests over a 12 month period. There were no significant differences in baseline plasma cortisol levels in LR and HR groups prior to confinement. During a 4h period of confinement, the differences in plasma cortisol levels between LR and HR fish were sustained throughout, indicating that the trait upon which the fish were selected was related to absolute maximum levels of circulating cortisol, not the rate of change of cortisol levels during exposure to a stressor. A moderately high heritability (h 2 ) for confinement-induced plasma cortisol of 0.41 was obtained by a parent-progeny regression. Manipulation of stressresponsiveness in fish by selective breeding offers scope for optimising performance under intensive rearing conditions but also provides a useful research tool for investigating the operation of the endocrine stress response.3

show abstract

“…Stress at death affects the quality and freshness during shelf life, with the consequent variation of parameters during storage, such as rigor release, ATP catabolites evolution and general aspects of the fish (Pottinger 2001;Tejada et al 2001;Poli et al 2005). These changes are widely considered as good indicators to evaluate the stress degree and the quality changes both in terrestrial species such as pigs (Warris et al 2003) and in fish (Lowe et al 1993;Marx et al 1997;Robb and Warriss 1997;Poli et al 2005).…”

Section: Introductionmentioning

confidence: 99%

Evaluation of different methods of stunning/killing sea bass (Dicentrarchus labrax) by tissue stress/quality indicators

et al. 2014

View full text Add to dashboard Cite

The aim of the study was to evaluate the effect on the final product quality of certain innovative stunning/killing methods for sea bass as substitutes for the most common methods used by European farmers. The changes in tissue stress/quality parameters were monitored from the first hours after death and during the shelf life of the fish. Two trials were conducted in July and November on n. 231 sea bass stunned/ killed by ice-water slurry, by single gas or mixture of gases in ice-water and by single-or two-stage electrical stunning/ killing methods. Behavioural responses, stun/death time, rigor index, muscular and ocular pH, lactic acid, ATP and catabolites at death and within the 24 h after death were determined. In the November trial, the sensorial evaluation, rigor index, IMP, inosine, hypoxanthine, and K 1 values were also evaluated during refrigerated storage until spoilage. The stunning/ killing in ice-water appeared to induce low effects on the analysed parameters and preserve a good product quality as indicated by the highest pH and ATP values at death, the delayed full rigor onset and the 1 day longer shelf life (14 days) in comparison with the single-or two-stage electrical stunning/killing. The gas mixture addition provided a 40 % shortening of the time to obtain stunning/killing and 14 days of shelf life. The actual level of quality loss with the different killing conditions and the actual impact of a significant shortage of rigor mortis onset and pH drop on the possible prerigor filleting remain to be studied in depth.

show abstract

Flesh Quality in Snapper, Pagrcrs auratus, Affected by Capture Stress

Cited by 136 publications

References 23 publications

Fish physiology and ecology: the contribution of the Leigh Laboratory to the collision of paradigms

Fish physiology and ecology: the contribution of the Leigh Laboratory to the collision of paradigms

Modification of the Plasma Cortisol Response to Stress in Rainbow Trout by Selective Breeding

Evaluation of different methods of stunning/killing sea bass (Dicentrarchus labrax) by tissue stress/quality indicators

Contact Info

Product

Resources

About