Heart rate within male crayfish: social interactions and effects of 5-HT

Listerman, Laura R; Deskins, Jasson; Bradacs, H.; Cooper, Robin L.

doi:10.1016/s1095-6433(99)00180-4

Cited by 83 publications

(44 citation statements)

References 36 publications

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“…Therefore, statistical analyses of hemolymph indole measurements, without strict controls, are difficult, and low background levels, animal-to-animal behavioral variations, as well as differences in age, sex, body size, social status and handling may cause such variations (Listerman et al 2000). Regardless, general trends are useful to observe.…”

Section: Discussionmentioning

confidence: 99%

Systemic serotonin sulfate in opisthobranch mollusks

Stuart¹,

Ebaugh²,

Copes³

et al. 2004

Journal of Neurochemistry

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Serotonin (5-hydroxytryptamine, 5-HT) is a ubiquitous modulatory neurotransmitter with roles as a neurohormone and neurotransmitter. However, few studies have been performed characterizing this molecule and its related metabolites in circulating fluids. Here, we demonstrate native 5-HT sulfate, but much lower levels of 5-HT, in hemolymph of the marine mollusk Pleurobranchaea californica. The metabolite 5-HT sulfate forms from 5-HT uptake and metabolism in central ganglia of Aplysia californica and in the visceral nerve and eye of Pleurobranchaea, but not in hemolymph itself. In addition, 5-hydroxyindole acetic acid (5-HIAA), while not detected in hemolymph, forms in higher quantities than does 5-HT sulfate in the eye and visceral nerve, and c-glu-5-HT is also observed in this area but never in hemolymph. As systemic 5-HT sulfate appears not to originate from the optic region or from systemic 5-HT, 5-HT sulfate likely derives from the nervous system. Circulating 5-HT sulfate is at least 10-fold higher during the light portion of a 12 : 12-h light/dark cycle than during the dark portion (p < 0.0007), but there is no obvious trend for free systemic tryptophan (Trp) (p > 0.3) in Pleurobranchaea. 5-HT in mollusks is associated with general arousal state; thus, diurnal systemic changes in a 5-HT catabolite may reflect a regulatory role for indole catabolism in behavioral rhythms. Keywords: capillary electrophoresis, hemolymph, marine mollusk, serotonin, sulfation. Serotonin (5-hydroxytryptamine, 5-HT) is a biogenic amine responsible for a variety of tasks in the nervous system. For instance, 5-HT is implicated in learning and memory in the central nervous system (CNS) and emesis and peristaltic reflex in the enteric nervous system (ENS) (Bartsch et al. 2000;Buhot et al. 2000;Endo et al. 2000). Several organs serve as targets for 5-HT, but the fate of 5-HT in target tissues, let alone the physiological effects of the resulting metabolites, has not been fully ascertained. Knowledge of the products of transformed 5-HT, as well as their distribution patterns, will assist in illuminating the processes leading to impaired neurotransmission and eventually aid in designing compounds that could potentially inhibit disease in neural and surrounding tissues.Marine mollusks present an excellent model for the study of the nervous system because of their large cell somata and well-characterized neural networks. In gastropod mollusks, 5-HT is involved in many neurophysiological processes, including sensitization and facilitation of withdrawal reflexes (Hawkins et al. 1993), feeding behavior (Gillette and Davis 1977) and locomotion (McPherson and Blankenship 1991). However, 5-HT-related metabolites have received considerably less attention.Our laboratory recently demonstrated that 5-HT metabolism in Aplysia californica involves sulfation and c-glutamylation with trace amounts of monoamine oxidase activity present in the form of 5-hydroxyindole acetic acid (5-HIAA) (Stuart et al. 2003). In particular, 5-HT sulfate is present ...

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Section: Discussionmentioning

confidence: 99%

Systemic serotonin sulfate in opisthobranch mollusks

Stuart¹,

Ebaugh²,

Copes³

et al. 2004

Journal of Neurochemistry

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“…1). All the recording experiments were conducted 2-3 days after the initial wiring of the animals in order to allow them to recover from the stressful handling because it has been shown that it alters heart rate (HR) for a few days (Wilkens et al, 1985;Listerman et al, 2000). Prior to an experiment, the crab was lodged in the container called an actometer: a bowl-shaped opaque container with a steep concave wall 12 cm high (23 cm top diameter and 9 cm floor diameter) covered to a depth of 0.5 cm with sea water and illuminated with a 10 W lamp placed 30 cm above the animal.…”

Section: Cardiac Response: Recording Proceduresmentioning

confidence: 99%

“…A plug connected to the impedance converter (UFI, model 2991, California, USA) was slotted in each jack cemented on the animal in order to monitor HR. The impedance converter measures the changes in the resistance between two electrodes, associated with the hemolymph movement after each heart contraction (Li et al, 2000;Listerman et al, 2000;Schapker et al, 2002). The output from the impedance leads was sent to the analog-to-digital converter of a computer data acquisition and analysis system (Fig.…”

Section: Cardiac Response: Recording Proceduresmentioning

confidence: 99%

“…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). Given the remarkable sensitivity of this parameter to a variety of sensory modalities it has been posed that the cardiac response can serve as an indicator of perception in decapod crustaceans and could well be utilized in studies on perceptual physiology.…”

Section: Introductionmentioning

confidence: 98%

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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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“…Particularly in decapods, serotonin takes a prominent part in a number of physiological processes, such as feeding, walking, reproduction, heart rate, and aggression (e.g. Huber et al 1997a, b;Yeh et al 1997;Listerman et al 2000;Teshiba et al 2001;Tierney & Mangiamele 2001). Contrary to its mode of action in vertebrates (e.g.…”

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confidence: 99%

Biogenic amines influence aggressiveness in crayfish but not their force or hierarchical rank

Tricarico

Gherardi

2007

Animal Behaviour

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This study aimed at understanding the influence of biogenic amines on the agonistic behaviour of the crayfish Procambarus clarkii, a model organism for crustacean decapods. Specifically, we investigated whether the hierarchical rank of fighting individuals might be altered by injecting solutions of either serotonin or octopamine into their haemolymph. First, we assessed the effect and duration of the bioamines on the behaviour, posture, and chelar force of 60 adult males paired for size. Then, we examined their potential to modify dominance hierarchies by observing, for 2 h after the treatment, the behaviour of three categories of familiar size-matched pairs: (1) 20 'control pairs' (both individuals injected with a physiological solution), (2) 20 'reinforced pairs' (the dominant individual, alpha, injected with serotonin, and the subordinate individual, beta, with octopamine), and (3) 20 'inverted pairs' (alpha injected with octopamine and beta with serotonin). The results clearly show that the two bioamines were able to alter the posture and aggressiveness of the treated individuals in opposite directions without affecting their chelar force. However, the large majority of the 'inverted pairs' retained their former position in the hierarchy. The role that intrinsic characteristics and prior social experience play in maintaining dominance hierarchies in crayfish is discussed.

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Heart rate within male crayfish: social interactions and effects of 5-HT

Cited by 83 publications

References 36 publications

Systemic serotonin sulfate in opisthobranch mollusks

Systemic serotonin sulfate in opisthobranch mollusks

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

Biogenic amines influence aggressiveness in crayfish but not their force or hierarchical rank

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