The effects of temperature, anoxia and sensory stimulation on the heart rate of unrestrained crabs

Florey, Ernst; Kriebel, Mahlon E.

doi:10.1016/0300-9629(74)90709-9

Cited by 81 publications

(46 citation statements)

References 22 publications

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“…Cumberlidge & Uglow 1977), whereas gradual changes in both amplitude and frequency seem to be a normal feature for Saduria. The decapod heart reacts immediately to external stimuli (Florey & Kriebel 1974) but Saduria hearts seem to continue their cyclical beating regardless of external variables. The cardiac arrests that occur in normoxia and moderate hypoxia are thus normal events in the beat cycle: slower and slower until total stop, then gradually starting again.…”

Section: Discussionmentioning

confidence: 99%

Respiration, ventilation and circulation under hypoxia in the glacial relict Saduria (Mesidotea) entomon

Hagerman¹,

Szaniawska²

1988

Mar. Ecol. Prog. Ser.

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The glacial relict Saduria (Mesidotea) entornon (L.) (Crustacea: Isopoda) lives buried in sandy/muddy bottoms in the Baltic. During hypoxia Saduria remains buried until oxygen tension (P,Oz) has decreased to < 5 Torr (8°C; 7 % S). Respiration rate (MO2) for buried Saduria was lower than for other crustaceans of similar size. Saduria is able to maintain a stable MO2 with decreasing P,Oz down to < 5 to 10 Torr, i.e. in practice over the entire P , 0 2 range. After exposure to severe hypoxia for many hours a respiratory overshoot was sometimes found. Only small amounts of haemolymph lactate had accumulated at P,02 = < 5 Torr; up to 30mg 100ml-' after 144 h exposure. The presence of anaerobic endproducts other than lactate is suggested. Patterns of heartbeat frequency (fh) and gill ventilation (6) changed considerably, but gradually, with time in buried Saduria. Normoxic fh varied from 0 to 120 beats min-' in a cyclic sequence lasting 5 to 6 min. f, varied in a similar way although with different rates. At P,Oz = < 10 Torr the acute ventilatory response was a high stroke frequency, but after some hours the ventilatory pattern changed to the same cyclic sequence as at higher P,,02, f, retained the same cyclic sequence in hypoxia as in normoxia but without cardiac arrests. Cardiac output remained constant over the entire P, O: ! range but ventilatory efficiency increased with decreasing P,02. Respiratory independence is governed by changes in ventilatory pump flow and in behaviour in order to facilitate the transfer of oxygen from the often hypoxic Baltic bottom water to respiratory tissues.

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Section: Discussionmentioning

confidence: 99%

Respiration, ventilation and circulation under hypoxia in the glacial relict Saduria (Mesidotea) entomon

Hagerman¹,

Szaniawska²

1988

Mar. Ecol. Prog. Ser.

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“…Larimer and Tindel (1966) observed CA when crayfish perceived the presence of food (chemical sensing or contact). These authors did not describe heartrate fluctuations in animal-animal interactions, but some evidence has been found that the visual detection of movement of a conspecific animal produces CA (Cuadras, 1979;Florey & Kriebel, 1974). Stimulation to produce CA (touching eyes, antennae, mouthparts, legs, or carapace) was ineffective if the bottom of the tank was covered with a layer of fine gravel that would allow the crabs to burrow into it (Florey & Kriebel, 1974), but visual detection of movement was effective in stopping the heart in sandy-bottom tanks (Cuadras, 1979(Cuadras, , 1980.…”

Section: Sensory Modalities Involved In Cardiac Inhibitionmentioning

confidence: 99%

“…A moving target elicited CA in Cancer (Wilkens et al, 1974) and in Dardanus (Cuadras, 1980), in the latter case associated with a startle response. When the crabs were approached by observers, bradycardia (Depledge, 1978) or CA (Florey & Kriebel, 1974), as well as startle (Cuadras, 1979), occurred. When behavior was also recorded, CA appeared to be a physiological component of the startle response (Cuadras, 1980, Note 1), regardless of the ensuing pattern of behavior and specific cardiac activity that usually followed.…”

Section: Sensory Modalities Involved In Cardiac Inhibitionmentioning

confidence: 99%

Behavioral determinants of severe cardiac inhibition

Cuadras

1981

Psychobiology

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“…In addition, the responses to several types of stimuli (tactile and chemical cues) were examined for their effects on the heart and ventilatory rate of crayfish, finding a reflex inhibition in the majority of them (Larimer, 1964). More specifically, bradycardia or reversible heart arrests have been reported in crabs, lobsters and crayfish to a variety of optical and tactile stimuli (Cuadras, 1980;Cumberlidge and Uglow, 1977;Florey and Kriebel, 1974;Grober, 1990a;Grober, 1990b;Larimer and Tindel, 1966;McMahon and Wilkens, 1972;Mislin, 1966;Shuranova and Burmistrov, 2002;Uglow, 1973;Wilkens et al, 1974). Furthermore, another set of results also gathered in crustacea have shown that even though no observable behavioral responses were elicited, heart rate was measurably affected by small disturbances in the environment or by social interaction (Li et al, 2000;Listerman et al, 2000;Schapker et al, 2002).…”

Section: Introductionmentioning

confidence: 99%

The cardiac response of the crabChasmagnathus granulatusas an index of sensory perception

Burnovicz

Oliva

Hermitte

2009

Journal of Experimental Biology

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SUMMARYWhen an animalʼs observable behavior remains unaltered, one can be misled in determining whether it is able to sense an environmental cue. By measuring an index of the internal state, additional information about perception may be obtained. We studied the cardiac response of the crab Chasmagnathus to different stimulus modalities: a light pulse, an air puff, virtual looming stimuli and a real visual danger stimulus. The first two did not trigger observable behavior, but the last two elicited a clear escape response. We examined the changes in heart rate upon sensory stimulation. Cardiac response and escape response latencies were also measured and compared during looming stimuli presentation. The cardiac parameters analyzed revealed significant changes (cardio-inhibitory responses) to all the stimuli investigated. We found a clear correlation between escape and cardiac response latencies to different looming stimuli. This study proved useful to examine the perceptual capacity independently of behavior. In addition, the correlation found between escape and cardiac responses support previous results which showed that in the face of impending danger the crab triggers several coordinated defensive reactions. The ability to escape predation or to be alerted to subtle changes in the environment in relation to autonomic control is associated with the complex ability to integrate sensory information as well as motor output to target tissues. This ʻfear, fight or flightʼ response gives support to the idea of an autonomic-like reflexive control in crustaceans.

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The effects of temperature, anoxia and sensory stimulation on the heart rate of unrestrained crabs

Cited by 81 publications

References 22 publications

Respiration, ventilation and circulation under hypoxia in the glacial relict Saduria (Mesidotea) entomon

Respiration, ventilation and circulation under hypoxia in the glacial relict Saduria (Mesidotea) entomon

Behavioral determinants of severe cardiac inhibition

The cardiac response of the crabChasmagnathus granulatusas an index of sensory perception

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