Reproduction affects locomotor behaviour and muscle physiology in the sea cucumber, Apostichopus japonicus

Ru, Xiaoshang; Zhang, Libin; Liu, Shilin; Yang, Hongsheng

doi:10.1016/j.anbehav.2017.09.024

Cited by 26 publications

(15 citation statements)

References 46 publications

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“…Both empirical and theoretical studies have suggested that personality has profound effects on individual fitness, growth, reproduction, metabolism and survival (Smith and Blumstein, 2008;Dingemanse and Wolf, 2010). These findings have been confirmed in many aquatic animals, such as echinoderms (Ru et al, 2017), fish (Adriaenssens and Johnsson, 2011;Liu and Fu, 2017) and amphibians (Kelleher et al, 2018). However, to date, there are relatively few studies in crustaceans, and most studies have focused on a few species, for instance, the hermit crab Pagurus bernhardus (Mowles et al, 2012), the Chinese mitten crab, Eriocheir sinensis (Brodin and Drotz, 2014), and the mud crab Panopeus herbstii (Belgrad et al, 2017).…”

Section: Introductionmentioning

confidence: 87%

Agonistic behaviour and energy metabolism of bold and shy swimming crab Portunus trituberculatus

Sun

Liu

et al. 2018

Journal of Experimental Biology

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The metabolism and behaviour of crustaceans are highly flexible, and the inter-individual variation in these traits is evolutionarily and ecologically significant. We analysed the relationships among personality traits (boldness, activity and hesitancy), agonistic behaviour and energy status (glycogen, glucose and lactate) in the swimming crab Portunus trituberculatus. The main results were as follows. (1) Boldness was significantly correlated with activity and hesitancy. Bold crabs were more likely to initiate and win a fight. In bold individuals, the frequencies of 'move to', 'cheliped display', 'grasp' and 'contact' were significantly higher than those of shy individuals, whereas the frequency of 'move away' was significantly lower than that of shy individuals. (2) Before fighting, the glucose concentrations in the haemolymph of bold individuals were significantly lower than those of shy individuals, whereas the concentrations of lactate showed the opposite trend. There were no significant differences in glycogen and lactate concentrations in the claw muscle between bold and shy individuals. (3) After fighting, the glucose and lactate concentrations in the haemolymph of both bold and shy individuals were significantly higher than those before fighting. The glucose concentrations in the haemolymph were significantly higher in bold individuals than shy individuals. In addition, bold individuals showed a larger increase in glucose in the haemolymph but a smaller increase in lactate compared with shy individuals. (4) After fighting, the glycogen concentrations in the claw muscle were significantly lower than those before fighting; however, there were no significant differences in the concentrations of lactate in the claw muscle. These results indicated that the agonistic behaviour of the swimming crab is related to its behavioural type. Energy reserves may be one of the factors affecting the personality traits and agonistic behaviour in crabs. These results should lay a foundation for in-depth understanding of the relationships among crustacean personality, agonistic behaviour and metabolic physiology.

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Section: Introductionmentioning

confidence: 87%

Agonistic behaviour and energy metabolism of bold and shy swimming crab Portunus trituberculatus

Sun

Liu

et al. 2018

Journal of Experimental Biology

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“…Ultraperformance liquid chromatography and quadrupole time-of-flight mass spectrometry (UPL-Q-TOF-MS) is a high resolution and sensitive metabolomics technology that can detect multiparametric metabolite profiles from biofluids or tissues rapidly and effectively ( Wilson et al, 2005 ; O’Connor and Mortishire-Smith, 2006 ). This technology has been successfully applied to assess the metabolomic function of muscles in sea cucumbers between breeding and non-breeding stages ( Ru et al, 2017 ), to study metabolic characteristics of intestinal fistula and obesity in humans ( Yin et al, 2006 ; Kim et al, 2010 ), and to measure blood constituents in rats after treatment with traditional Chinese medicine ( Wang et al, 2008 , 2018 ).…”

Section: Introductionmentioning

confidence: 99%

The Effect of Melatonin on Locomotor Behavior and Muscle Physiology in the Sea Cucumber Apostichopus japonicus

Ding

Zhang

et al. 2019

Front. Physiol.

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Melatonin is a highly conserved hormone in evolutionary history. It occurs in numerous organisms and plays a role in the endocrine and immune systems. Locomotor behavior is a basic behavior in animals and is an important indicator of circadian rhythms, which are coordinated by the nervous and endocrine systems. To date, the effect of melatonin on locomotor behavior has been studied in vertebrates, including syrian hamsters, sparrows, rats, zebrafish, goldfish, and flatworms. However, there have been few studies of the effects of melatonin on locomotor behavior in marine invertebrates. The goals of present study were to show the existence of melatonin in the sea cucumber Apostichopus japonicus and to evaluate its effect on locomotor activity. In addition, muscle tissues from control and melatonin-treated sea cucumbers were tested using ultra performance liquid chromatography and quadrupole time-of-flight mass spectrometry (UPLC-Q-TOF-MS) to determine the changes of metabolic activity in muscle. Melatonin was present in the coelomic fluid of A. japonicus at a concentration of ∼135.0 ng/L. The total distance traveled and number steps taken over 9 h after melatonin administration decreased with increasing concentration of the melatonin dose. Mean and maximum velocity of movement and stride length and stride frequency also decreased, but their differences were not statistically significant. Overall, these results suggest that melatonin administration had a sedative effect on A. japonicus. The levels of 22 different metabolites were altered in the muscle tissues of melatonin-treated sea cucumbers. Serotonin, 9-cis retinoic acid, all-trans retinoic acid, flavin mononucleotide in muscles were downregulated after melatonin administration. Moreover, a high free fatty acid (FFA) concentration and a decrease in the adenosine 5′-triphosphate (ATP) concentration in the muscle tissues of the melatonin-treated group were detected as well. These results suggest that the sedative effect of melatonin involves some other metabolic pathways, and the reduced locomotor modulator—serotonin, inhibited fatty acid oxidation and disturbed oxidative phosphorylation are potential physiological mechanisms that result in the inhibitory effect of melatonin on locomotion in sea cucumbers.

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“…Spatial constraints in the body cavity are regarded as a possible physiological factor because growing gonads occupy the limited body cavity leaving relatively less space for food (Weeks, ). As an example of behavioural changes, breeding A. japonicus loses its locomotor performance, which leads to an inevitable decrease in their feeding rate (Ru, Zhang, Liu, & Yang, ). Feeding behaviour in sea cucumbers is positively associated with circadian rhythms (Sun et al., ).…”

Section: Discussionmentioning

confidence: 99%

Energy budget adjustment of sea cucumber Apostichopus japonicus during breeding period

Zhang

Liu

et al. 2018

Aquac Res

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Reproductive success is unpredictable for many cultured echinoderms. And cost of reproduction plays an important role in animal life‐history. Therefore, understanding cost of reproduction contributes to improving breeding techniques during broodstock rearing in aquaculture. In this study, energetic costs during breeding were explored in the sea cucumber, Apostichopus japonicus, an important aquaculture species in China, Japan and South Korea. The food intake, digestive functions and energy budget patterns were estimated at different breeding stages. Unexpectedly, in the growing gonad phase of the sea cucumber lifecycle, animals showed a decline in feed consumption (from 4.49 to 2.6 g ind−1 day−1), ingestion rate (from 0.4 to 0.13 g g−1 day−1) and apparent digestive rate (from 14.73% to 10.92%), resulting in a reduced energy input. In addition, the increased energy investment in reproduction (from 1.76% to 15.61%) resulted in a decrease in energy allocated to soma growth (from 17.1% to 5.64%) and self‐maintenance (from 47.82% to 34.67%). These results suggest that reproduction impairs energy acquisition ability in breeding A. japonicus. And broodstock can adapt energy shortage by internal adjustment of energy allocation strategy.

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Reproduction affects locomotor behaviour and muscle physiology in the sea cucumber, Apostichopus japonicus

Cited by 26 publications

References 46 publications

Agonistic behaviour and energy metabolism of bold and shy swimming crab Portunus trituberculatus

Agonistic behaviour and energy metabolism of bold and shy swimming crab Portunus trituberculatus

The Effect of Melatonin on Locomotor Behavior and Muscle Physiology in the Sea Cucumber Apostichopus japonicus

Energy budget adjustment of sea cucumber Apostichopus japonicus during breeding period

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