Force production during escape responses by Placopecten magellanicus is a sensitive indicator of handling stress: Comparison with adductor muscle adenylate energy charge and phosphoarginine levels

Pérez, Hernán; Janssoone, Xavier; Nadeau, Madeleine; Guderley, Helga

doi:10.1016/j.aquaculture.2008.07.016

Cited by 16 publications

(2 citation statements)

References 22 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Our field enzyme data indicate that maximal metabolic capacities do not constrain greater endurance on exposed shores. However, acute energetic status, such as phosphoarginine concentrations and adenylate charges, can affect muscle performance (Pérez et al , 2008), which may at least partly explain the results of our acclimation treatments. Note also that endurance in the acclimation study was overall lower than in the field, and it is possible that time in captivity reduced muscle performance, but this effect should have been similar in all treatments.…”

Section: Discussionmentioning

confidence: 99%

Increased wave action promotes muscle performance but increasing temperatures cause a tenacity–endurance trade-off in intertidal snails (Nerita atramentosa)

Clayman

Seebacher

2019

Conservation Physiology

View full text Add to dashboard Cite

Concurrent increases in wave action and sea surface temperatures increase the physical impact on intertidal organisms and affect their physiological capacity to respond to that impact. Our aim was to determine whether wave exposure altered muscle function in intertidal snails (Nerita atramentosa) and whether responses to wave action and temperature are plastic, leading to compensation for altered environmental conditions. We show that field snails from exposed shores had greater endurance and vertical tenacity than snails from matched protected shores (n = 5 pairs of shores). There were no differences in muscle metabolic capacities (strombine/lactate dehydrogenase, citrate synthase and cytochrome c oxidase activities) between shore types. Maximum stress (force/foot area) produced by isolated foot muscle did not differ between shore types, but foot muscle from snails on exposed shores had greater endurance. A laboratory experiment showed that vertical tenacity was greater in animals acclimated for 3 weeks to cool winter temperatures (15 C) compared to summer temperatures (25 C), but endurance was greater in snails acclimated to 25°C. Acclimation to water flow that mimicked wave action in the field increased vertical tenacity but decreased endurance. Our data show that increased wave action elicits a training effect on muscle, but that increasing sea surface temperature can cause a trade-off between tenacity and endurance. Ocean warming would negate the beneficial increase in tenacity that could render snails more resistant to acute impacts of wave action, while promoting longer term resistance to dislodgment by waves.

show abstract

Section: Discussionmentioning

confidence: 99%

Increased wave action promotes muscle performance but increasing temperatures cause a tenacity–endurance trade-off in intertidal snails (Nerita atramentosa)

Clayman

Seebacher

2019

Conservation Physiology

View full text Add to dashboard Cite

show abstract

“…We hypothesized that the absence of this response as well as similar physiological manifestations tied to exhaustion would be indicative of an animal that would have a lower probability of survival. Pérez et al (2008) described the energy utilization of the sea scallop's adductor muscle (i.e., the muscle used during the escape behavior) in response to handling stress and found that while the number and force of contractions were reduced as a result of exhaustion, individuals were ultimately able to recover within hours. This exhaustion did result in a higher vulnerability to predation, but mortality as a function of exhaustion was not materially increased (Maguire et al 2002).…”

Section: Overall Survival and Shell Damage Code Estimatementioning

confidence: 99%

Discard Mortality of Sea Scallops Placopecten magellanicus Following Capture and Handling in the U.S. Dredge Fishery

et al. 2022

View full text Add to dashboard Cite

Discard mortality can represent a potentially significant source of uncertainty for both stock assessments and fishery management measures. While the family Pectinidae is considered to be robust to the capture and handling process, understanding species-specific discard mortality rates is critical to characterize both population dynamics and to develop regulatory measures to meet management objectives. The discard mortality rate for the U.S. dredge fishery of sea scallop Placopecten magellanicus was estimated empirically via a retention study aboard industry vessels under commercial conditions. Over 16,000 sea scallops were assessed via a composite index of scallop vitality that consisted of semiqualitative measures of both overt trauma (shell damage) and response to stimuli. Results indicate that overall sea scallop discard mortality was 21% and consistent with the values currently assumed in the stock assessment. Survival mixture models support the utility of a simple metric of physical trauma as an effective predictor of mortality. Exposure time was also identified as a positively correlated factor that was important in describing the discard mortality process. Application of experimental results highlight the need to consider some operational characteristics of the fishery to reduce potential discard mortality.

show abstract

Allozyme heterozygosity and escape response performance of the scallops, Argopecten purpuratus and Placopecten magellanicus

et al. 2011

View full text Add to dashboard Cite

Force production during escape responses by Placopecten magellanicus is a sensitive indicator of handling stress: Comparison with adductor muscle adenylate energy charge and phosphoarginine levels

Cited by 16 publications

References 22 publications

Increased wave action promotes muscle performance but increasing temperatures cause a tenacity–endurance trade-off in intertidal snails (Nerita atramentosa)

Increased wave action promotes muscle performance but increasing temperatures cause a tenacity–endurance trade-off in intertidal snails (Nerita atramentosa)

Discard Mortality of Sea Scallops Placopecten magellanicus Following Capture and Handling in the U.S. Dredge Fishery

Allozyme heterozygosity and escape response performance of the scallops, Argopecten purpuratus and Placopecten magellanicus

Contact Info

Product

Resources

About