Recovery from handling stress in <i>Gadus morhua</i>

Artigas, M. L.; Skjæraasen, Jon Egil; Utne‐Palm, Anne Christine; Nilsen, Trygve

doi:10.1111/j.0022-1112.2005.00745.x

Cited by 16 publications

(13 citation statements)

References 32 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In line with this, OBR is typically elevated with stress [28], [48], and a temporary post-treatment increase in this parameter was observed in all treatment groups in the present study. Surprisingly, no significant differences were found in the levels of circulatory stress indicators in our Atlantic cod two hours post-treatment.…”

Section: Discussionsupporting

confidence: 90%

Physiological and Behavioural Responses to Noxious Stimuli in the Atlantic Cod (Gadus morhua)

et al. 2014

View full text Add to dashboard Cite

In the present study, our aim was to compare physiological and behavioural responses to different noxious stimuli to those of a standardized innocuous stimulus, to possibly identify aversive responses indicative of injury detection in a commercially important marine teleost fish, the Atlantic cod. Individual fish were administered with a noxious stimulus to the lip under short-term general anaesthesia (MS-222). The noxious treatments included injection of 0.1% or 2% acetic acid, 0.005% or 0.1% capsaicin, or piercing the lip with a commercial fishing hook. Counts of opercular beat rate (OBR) at 10, 30, 60, 90 and 120 min and observations of behaviour at 30 and 90 min post-treatment were compared with pre-treatment values and with control fish injected with physiological saline, an innocuous stimulus. Circulatory levels of physiological stress indicators were determined in all fish at 120 minutes post-treatment. All treatments evoked temporarily increased OBR that returned to pre-treatment levels at 60 minutes (saline, 0.005% capsaicin, hook), 90 minutes (0.1% acetic acid, 0.1% capsaicin), or 120 minutes (2% acetic acid), but with no significant differences from the control group at any time point. Fish treated with 0.1% and 2% acetic acid and 0.1% capsaicin displayed increased hovering close to the bottom of the aquaria and fish given 2% acetic acid and 0.1% capsaicin also displayed a reduced use of shelter. The only effect seen in hooked fish was brief episodes of lateral head shaking which were not seen pre-treatment or in the other groups, possibly reflecting a resiliency to tissue damage in the mouth area related to the tough nature of the Atlantic cod diet. There were no differences between groups in circulatory stress indicators two hours after treatment. This study provides novel data on behavioural indicators that could be used to assess potentially aversive events in Atlantic cod.

show abstract

Section: Discussionsupporting

confidence: 90%

Physiological and Behavioural Responses to Noxious Stimuli in the Atlantic Cod (Gadus morhua)

et al. 2014

View full text Add to dashboard Cite

show abstract

“…We caution that our results are overestimates of routine VO 2 /M as they include an unknown contribution from specific dynamic action. Handling stress also contributed to this overestimation, but was likely a relatively minor component due to our efforts to minimize stress during capture and the robustness and rapid recovery of juvenile cod from handling stress (Artigas et al 2005). Our observation of a relationship between VO 2 /M and fish weight is consistent with that observed in other populations of Atlantic cod (Peck et al 2003(Peck et al , 2004.…”

Section: Discussionsupporting

confidence: 86%

Evidence of phenotypic plasticity and local adaption in metabolic rates between components of the Icelandic cod (Gadus morhua L.) stock

et al. 2009

View full text Add to dashboard Cite

Phenotypic plasticity and local adaptations are important considerations in delineating population structure of marine fishes and critical to their conservation and management. We compared the weight-specific oxygen consumption rates (VO 2 /M) of juvenile cod from the northern and southern components of the Icelandic stock acclimated to 4.0°C, 8.5°C, and 12.6°C and their metabolic response to abrupt temperatures changes within this range. Southern individuals exhibited VO 2 /M up to 50% higher than their northern counterparts when tested at their acclimation temperature. However, northern fish generally experienced greater changes in VO 2 /M, three to six-fold increases, relative to that expected at acclimation when moved to higher temperatures. Southern cod showed a greater decrease in VO 2 /M when exposed to lower temperatures. Our results indicate physiological differences exist between the northern and southern components of the Icelandic cod stock and warrant considering them as two distinct populations.

show abstract

“…Further, the results from naïve test fish demonstrate a clear difference between plain and enriched fish, and other differences between them have been found in previous studies using similar test conditions (e.g. Artigas et al 2005. The effect of spatially enriched rearing environments on rodent behaviour is well documented, and spatial enrichment has been shown to affect both behavioural flexibility, neuroanatomy and stress responses.…”

Section: Discussionsupporting

confidence: 70%

“…The fish were given 43 h to acclimate to the experimental aquaria before trials began. Although previous experiments suggest that juvenile cod can recover from handling within 1.5 h (Artigas et al 2005), we chose to use a prolonged acclimation period to minimise any stress that may be associated with transferring the naïve test fish from a large rearing tank into a smaller test aquaria.…”

Section: Rearingmentioning

confidence: 99%

Enrichment promotes learning in fish

Strand¹,

Utne‐Palm²,

Jakobsen³

et al. 2010

Mar. Ecol. Prog. Ser.

View full text Add to dashboard Cite

Captive birds and mammals reared in enriched rearing environments have been shown to behave more flexibly compared to animals reared in impoverished or plain environments. Recent evidence has shown that this is also true for fish; enrichment promotes faster recovery after a stressful experience, a higher propensity for exploration of novel areas and the development of more sophisticated social behaviour. Here we report how enrichment influences social learning in juvenile cod Gadus morhua that were reared in either spatially enriched or plain tanks. Naïve juvenile cod were allowed to repeatedly observe experienced tutors as they foraged on gammarid or mysid prey, or control tutors that acted as social stimuli but did not forage. The naïve fish then received a mixture of mysid and gammarid prey. Enriched-reared fish improved their ability to consume live prey in the presence of foraging tutors, but plain-reared fish did not. Although gammarids were consumed more often and more quickly than mysids, both among tutors and naïve fish, social learning from tutors demonstrating mysid hunting and consumption had its greatest effect on social learning in the enriched fish.

show abstract

Recovery from handling stress in Gadus morhua

Cited by 16 publications

References 32 publications

Physiological and Behavioural Responses to Noxious Stimuli in the Atlantic Cod (Gadus morhua)

Physiological and Behavioural Responses to Noxious Stimuli in the Atlantic Cod (Gadus morhua)

Evidence of phenotypic plasticity and local adaption in metabolic rates between components of the Icelandic cod (Gadus morhua L.) stock

Enrichment promotes learning in fish

Contact Info

Product

Resources

About