Effects of temperature and temperature acclimation on the motor and neural functions in the crayfish Astacus astacus L

Kivivuori, Liisa A.

doi:10.1016/0300-9629(80)90032-8

Cited by 19 publications

(14 citation statements)

References 27 publications

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“…In the crayfish ( Astacus fluviatilis ), the spontaneous spike activity of isolated neuron bundles increased from 10 to 28 °C, but decreased rapidly above 30 °C4243. In crayfish exhibiting an impaired righting reflex between 26.7 and 30°C, the temperatures for total collapse of spontaneous activity in isolated nerve cords was between 36.4 and 38.7 °C28. Our data are consistent with these studies, as A. astacus became sluggish and unresponsive at 32 °C and lost the ability to conduct action potentials above 34 °C, a few degrees below Tcrit (36.2 ± 0.4 °C).…”

Section: Discussionmentioning

confidence: 99%

“…Furthermore, we investigated the association between Tcrit and loss of oxygen delivery by quantifying absolute aerobic scope, heart rate and ventilation rate during temperature elevation. Finally, since early literature on the physiological mechanisms underlying Tcrit in aquatic ectotherms suggested that compromised neural activity may be a critical factor for thermal tolerance 27282930, we measured the impact of elevating temperature on the ability of nerve preparations from A. astacus to conduct action potentials.…”

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confidence: 99%

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Some like it hot: Thermal tolerance and oxygen supply capacity in two eurythermal crustaceans

Ern

Hương

Phương

et al. 2015

Sci Rep

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Thermal sensitivity of the cardiorespiratory oxygen supply capacity has been proposed as the cardinal link underlying the upper boundary of the temperature niche in aquatic ectotherms. Here we examined the evidence for this link in two eurythermal decapods, the Giant tiger shrimp (Penaeus monodon) and the European crayfish (Astacus astacus). We found that both species have a temperature resistant cardiorespiratory system, capable of maintaining oxygen delivery up to their upper critical temperature (Tcrit). In neither species was Tcrit reduced in hypoxia (60% air saturation) and both species showed an exponential increase in heart and gill ventilation rates up to their Tcrit. Further, failure of action potential conduction in preparations of A. astacus motor neurons coincided with Tcrit, indicating that compromised nervous function may provide the underlying determinant for Tcrit rather than oxygen delivery. At high temperatures, absolute aerobic scope was maintained in P. monodon, but reduced in A. astacus. However, A. astacus also displayed reduced exercise intensity indicating that impaired muscle performance with resulting reduced tissue oxygen demand may explain the reduced scope rather than insufficient oxygen supply capacity. This interpretation agrees with early literature on aquatic ectotherms, correlating loss of nervous function with impaired locomotion as temperatures approach Tcrit.

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Section: Discussionmentioning

confidence: 99%

mentioning

confidence: 99%

Some like it hot: Thermal tolerance and oxygen supply capacity in two eurythermal crustaceans

Ern

Hương

Phương

et al. 2015

Sci Rep

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“…Lower CT max temperatures are found in cold-acclimated relatively eurythermic crustaceans : 19-21 xC in the crayfish Astacus astacus acclimated to 5 xC (Kivivuori, 1980) and 22-25 xC in the crab Cancer pagurus acclimated to 8 xC (Cuculescu et al, 1998). The extremely stenothermic Antarctic amphipod Orchomene plebs acclimated to x1.2 xC has CT max of 8-10 xC (Lahdes, Kivivuori & LehtiKoivunen, 1993).…”

Section: Thermal Effects On Other Behavioural Responsesmentioning

confidence: 99%

“…Kivivuori (1980) studied the effects of thermal acclimation and seasonal acclimatization on the temperature dependence of spontaneous spike activity in the nerve cord in Astacus astacus. Spike activity was in nerve cords isolated from 5 xC-acclimated animals in its maximum at approximately 21 xC and from 20 xC-acclimated at approximately 26 xC.…”

Section: (E ) Caudal Photoreceptorsmentioning

confidence: 99%

“…However, the ARR of thermal preference for these species is 0 and 0.6, respectively. Two relatively eurythermic species, the crayfish Astacus astacus (5-20 xC) (Kivivuori, 1980), and the shrimp Penaeus monodon (16-36 xC) (Chen & Chen, 1999), had ARR values for thermal preference of 0.18 and 0.27, respectively. The lack of any relationship between Pt and ARR (Table 2, Fig.…”

Section: Thermal Preference (1 ) Experimental Considerations In Grmentioning

confidence: 99%

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Thermal behaviour of crustaceans

2006

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Specific thermoreceptors or putative multimodal thermoreceptors are not known in Crustacea. However, behavioural studies on thermal avoidance and preference and on the effects of temperature on motor activity indicate that the thermosensitivity of crustaceans may be in the range 0.2-2 degrees C. Work on planktonic crustaceans suggests that they respond particularly to changes in temperature by klinokinesis and orthokinesis. The thermal behaviour of crustaceans is modified by thermal acclimation among other factors. The acclimation of the critical maximum temperature is an example of resistance acclimation, while the acclimation of preference behaviour may be classified as capacity acclimation of some other function. In crustaceans, the use of the concepts stenothermy and eurythermy at the species level is questionable, and it is not possible to divide crustacean species into thermal guilds as suggested for fishes. Thermal preference behaviour contributes to fitness in different ways in different species, often by maximising the aerobic metabolic scope for activity. In crustaceans the peripheral nervous system seems to have retained the capacity for thermosensitivity and thermal acclimation independently of the central nervous system control of behaviour.

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Temperature dependence of the response of the pyridine-sensitive units in the crayfish walking leg

Hatt¹

1983

J. Comp. Physiol.

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Effects of temperature and temperature acclimation on the motor and neural functions in the crayfish Astacus astacus L

Cited by 19 publications

References 27 publications

Some like it hot: Thermal tolerance and oxygen supply capacity in two eurythermal crustaceans

Some like it hot: Thermal tolerance and oxygen supply capacity in two eurythermal crustaceans

Thermal behaviour of crustaceans

Temperature dependence of the response of the pyridine-sensitive units in the crayfish walking leg

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