Evidence for an Autonomic Nervous System in Decapod Crustaceans

Shuranova, Zhanna; Burmistrov, Yuri; Strawn, J. R.; Cooper, Robin L.

doi:10.3923/ijzr.2006.242.283

Cited by 32 publications

(18 citation statements)

References 61 publications

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“…The responsiveness indicates that a sensory to cardio-acceleratory or a sensory to inhibition of the cardio-inhibitory command is active in a crayfish operating at 10˚C. The innervation to the heart has been explored so experiments are reasonable to record from the cardioregulatory nerves to address the neural drive to the heart and the affect of temperature from central control [9,[48][49][50][51].…”

Section: Discussionmentioning

confidence: 99%

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The acute and chronic effect of low temperature on survival, heart rate and neural function in crayfish (Procambarus clarkii) and prawn (Macrobrachium rosenbergii) species

Chung¹,

Cooper²,

Graff³

et al. 2012

OJMIP

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The effect of acute and chronic cold exposure on heart rate (HR) and neuronal function in crayfish Procambarus clarkii and prawns Macrobrachium rosenbergii was addressed. This is particularly important since prawn farms of this species are used for aquaculture in varied climates world wide. The success of P. clarkii as an invasive species throughout the world may in part be due to their ability to acclimate to cold and warm habitats. A set of experiments was devised to address the physiological abilities of these species in managing rapid changes to cold environments as well as their ability to respond to sensory stimuli by using behavior and a bioindex of HR. Prawns died within 2 hrs when moved from 21℃ to 5℃. Crayfish reduced their HR but survived for at least a week with this rapid change. Changes in temperature of 5℃ each week resulted in death of the prawns when 10℃ was reached. Some died at 16℃ and some lasted at 10℃ for 1 day before dying. Crayfish remained responsive to sensory stimuli and survived with either rapid or slow changes in temperature from 21℃ to 5℃. Primary sensory neurons were rapidly inhibited in prawns with an acute change to 5℃, where as in crayfish the activity was reduced but not completely inhibited. An induced sensory-CNS-motor circuit elicited activity at neuromuscular junctions in prawns and crayfish at 21℃ but with acute changes to 5℃only in crayfish was the circuit functionally intact. The ability to survive rapid environmental temperature changes will impact survival and in time the distribution of a species. The significance of these findings is that they may account, in part, for the wide ecological distribution of P. clarkii as compared to M. rosenbergii. The invasiveness of organisms, as for P. clarkii, is likely linked to the physiological robustness to acute and chronic temperature changes of habitats

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Section: Discussionmentioning

confidence: 99%

“…The animals which did not exhibit a behavioral response to a tail tap would not necessarily imply a lack in the ability to sense the stimulus. Changes in heart rate (HR) appear to be a good index for subtle sensory cues in crayfish even when there is no observable behavior change [7][8][9]. This might be due to the heart being neurogenic.…”

Section: Introductionmentioning

confidence: 99%

The acute and chronic effect of low temperature on survival, heart rate and neural function in crayfish (Procambarus clarkii) and prawn (Macrobrachium rosenbergii) species

Chung¹,

Cooper²,

Graff³

et al. 2012

OJMIP

View full text Add to dashboard Cite

show abstract

“…The crayfish heart ganglion receives neural innervation from the suboesophageal ganglion [44][45][46][47]. The drive to the motor neurons for the cardiac and ventilator muscles is likely driven by a central command since they do parallel in the excitability of these distinctly different muscle groups [16,25,48]. The mechanisms in neuromodulator on such a circuitry would be of interest to know if modulation could be distinctly different on the drive to one or the other systems or if the higher command center is the primary site of action.…”

Section: Discussionmentioning

confidence: 99%

“…Later studies focused on particular neuronal paths of regulation in cardiac and ventilatory function in crustaceans [8][9][10][11][12][13] and in relation to whole animal function [1,[14][15][16][17][18]. There are some studies where HR and VR are used specifically in terms of a bioindex for correlating autonomic function during social interactions or environmental changes in crustaceans [2][3][4][19][20][21][22][23][24][25][26]. Here we extend this field of investigation by examining the effects on HR and VR in crayfish during the voluntary act of copulation for both males and females.…”

Section: Introductionmentioning

confidence: 99%

Heart and ventilatory measures in crayfish during copulation

Cooper¹,

Finucane²,

Adami³

et al. 2011

OJMIP

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Monitoring heart rate (HR) and ventilatory rate (VR) during defined sensory stimuli and during aggressive and submissive social interactions has provided additional information of a crayfish's physiological state which is not achieved by behavioral observations. In this study, the HR and VR of crayfish were monitored before, during and after the act of copulation in both heterosexual partners. The female crayfish abruptly reduces HR and VR during copulation but the male maintains HR and VR. After separation from copulation the female HR and VR are elevated, potentially paying back the O2 debt. The tight relationship with HR and VR in direction of change indicates a potential neural coupling. These physiological changes in cardiac and respiratory systems suggest an autonomic-like regulation of HR and VR. How these neuronal functions are driven and regulated remains to be determined. Olfactory cues from the female to the male during copulation may be reduced by the reduction in VR in the female. These studies offer experimental paradigms for future neuronal and pharmacological investigations into autonomic regulation of HR and VR as well as the neural circuitry involved

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“…Modulators are important factors for inducing physiological changes to allow arthropods to respond to different environments. Modulators, such as serotonin (5-HT), octopamine (OA), dopamine (DA) and peptides are well known to alter neuronal, cardiac, GI, ventilatory and skeletal muscle function in crustaceans and insects (Listerman et al, 2000; Strawn et al, 2000; review by Cooper et al, 2011a,b; Shuranova et al, 2006; Städele et al, 2015). Octopamine produces long-lasting contracture in exoskeletal muscles in lobsters and can have direct effects on muscle (Evans et al, 1975).…”

Section: Introductionmentioning

confidence: 99%

Effect of temperature change on synaptic transmission at crayfish neuromuscular junctions

2018

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Ectothermic animals in areas characterised by seasonal changes are susceptible to extreme fluctuations in temperature. To survive through varied temperatures, ectotherms have developed unique strategies. This study focuses on synaptic transmission function at cold temperatures, as it is a vital component of ectothermic animals' survival. For determining how synaptic transmission is influenced by an acute change in temperature (20°C to 10°C within a minute) and chronic cold (10°C), the crayfish (Procambarus clarkii) neuromuscular junction (NMJ) was used as a model. To simulate chronic cold conditions, crayfish were acclimated to 15°C for 1 week and then to 10°C for 1 week. They were then used to examine the synaptic properties associated with the low output nerve terminals on the opener muscle in the walking legs and high output innervation on the abdominal deep extensor muscle. The excitatory postsynaptic potentials (EPSPs) of the opener NMJs increased in amplitude with acute warming (20°C) after being acclimated to cold; however, the deep extensor muscles showed varied changes in EPSP amplitude. Synaptic transmission at both NMJs was enhanced with exposure to the modulators serotonin or octopamine. The membrane resistance of the muscles decreased 33% and the resting membrane potential hyperpolarised upon warm exposure. Analysis of haemolymph indicated that octopamine increases during cold exposure. These results suggest bioamine modulation as a possible mechanism for ensuring that synaptic transmission remains functional at low temperatures.

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Evidence for an Autonomic Nervous System in Decapod Crustaceans

Cited by 32 publications

References 61 publications

The acute and chronic effect of low temperature on survival, heart rate and neural function in crayfish (<i>Procambarus clarkii</i>) and prawn (<i>Macrobrachium rosenbergii</i>) species

The acute and chronic effect of low temperature on survival, heart rate and neural function in crayfish (<i>Procambarus clarkii</i>) and prawn (<i>Macrobrachium rosenbergii</i>) species

Heart and ventilatory measures in crayfish during copulation

Effect of temperature change on synaptic transmission at crayfish neuromuscular junctions

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Evidence for an Autonomic Nervous System in Decapod Crustaceans

Cited by 32 publications

References 61 publications

The acute and chronic effect of low temperature on survival, heart rate and neural function in crayfish (&lt;i&gt;Procambarus clarkii&lt;/i&gt;) and prawn (&lt;i&gt;Macrobrachium rosenbergii&lt;/i&gt;) species

The acute and chronic effect of low temperature on survival, heart rate and neural function in crayfish (&lt;i&gt;Procambarus clarkii&lt;/i&gt;) and prawn (&lt;i&gt;Macrobrachium rosenbergii&lt;/i&gt;) species

Heart and ventilatory measures in crayfish during copulation

Effect of temperature change on synaptic transmission at crayfish neuromuscular junctions

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The acute and chronic effect of low temperature on survival, heart rate and neural function in crayfish (<i>Procambarus clarkii</i>) and prawn (<i>Macrobrachium rosenbergii</i>) species

The acute and chronic effect of low temperature on survival, heart rate and neural function in crayfish (<i>Procambarus clarkii</i>) and prawn (<i>Macrobrachium rosenbergii</i>) species