Thermal Tolerance and Physiological Changes in Mud Crab, Scylla paramamosain Crablet at Different Water Temperatures

Syafaat, Muhammad Nur; Azra, Mohamad Nor; Mohamad, Faridah; Che-Ismail, Che Zulkifli; Amin-Safwan, Adnan; Asmat-Ullah, Mohammad; Syahnon, Mohammad; Azmie, Ghazali; Abol‐Munafi, Ambok Bolong; Ma, Hongyu; Ikhwanuddin, Mhd

doi:10.3390/ani11041146

Cited by 17 publications

(9 citation statements)

References 48 publications

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“…Thus, Japanese S. paramamosain appeared to exhibit a lower temperature adaptation compared with Malaysian S. paramamosain, probably because of the lower habitat temperature in temperate Japan compared to tropical Malaysia. However, it should be noted that the different decreasing thermal regimes, 1°C/min in Syafaat et al (2021) and 1°C/24h in the present study, may affect the low-temperature tolerance limits of the test crabs.…”

Section: ■ Discussionmentioning

confidence: 69%

“…The thermal tolerance traits of brachyuran crabs have often been evaluated by estimating the critical thermal minimum (CTmin) and/or maximum (CTmax), which are defined as the temperatures at which a crab cannot right itself after being turned onto its dorsal surface (Azra et al, 2018). Syafaat et al (2021) estimated CTmin and CTmax for C1 juveniles of S. paramamosain. Juveniles were exposed to decreasing and increasing temperature regimes at a rate of 1°C/min, and the CTmin and Ctmax were determined as 17-18°C and 40°C, respectively.…”

Section: ■ Discussionmentioning

confidence: 99%

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Temperature tolerance of juveniles of two mud crab species, Scylla paramamosain and Scylla serrata (Decapoda: Brachyura: Portunidae)

et al. 2022

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Temperature is one of the most important environmental factors affecting the geographic distribution of ectotherms. We evaluated the low-and high-temperature tolerance limits of juveniles of two mud crab species, Scylla paramamosain and Scylla serrata, which are distributed in temperate and subtropical/tropical areas in Japan, respectively. Experiments were performed twice for S. paramamosain and four times for S. serrata using laboratory-raised juveniles. The juveniles were stocked in small containers, and the temperature was reduced or raised by 1°C every 24 h. The critical low or high temperatures (CLT or CHT) were estimated as the temperatures at which 50% of test juveniles ceased walking behaviour or died. The estimated CLT values for walking and survival were summarised as 8.4±0.7°C (mean±standard deviation) and 6.4±0.9°C in S. paramamosain and 9.6±0.6°C and 7.4±0.4°C in S. serrata, respectively. The CHT for walking could not be estimated, as almost all surviving juveniles exhibited walking behaviour, whereas the estimated CHT values for survival were summarised as 39.0±0.4°C in S. paramamosain and 39.1±0.6°C in S. serrata. Thus, interspecific variation in low-temperature adaptation was evident, and S. paramamosain are adapted to the lower-temperature environment.

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Section: ■ Discussionmentioning

confidence: 69%

Section: ■ Discussionmentioning

confidence: 99%

Temperature tolerance of juveniles of two mud crab species, Scylla paramamosain and Scylla serrata (Decapoda: Brachyura: Portunidae)

et al. 2022

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“…Temperature and salinity are two key parameters to be considered both in the larvae rearing and the nursery phases of mud crabs [24,30,33,[61][62][63][64]. These two parameters greatly affect the physiological processes, having an impact on the growth of portunid crabs [65][66][67][68]. The recommended salinity for the rearing of M and C1 is between 20-25 ppt [30,33,[61][62][63][64] while the recommended temperature is 28-30 • C [24,30,66].…”

Section: Water Qualitymentioning

confidence: 99%

A Review of the Nursery Culture of Mud Crabs, Genus Scylla: Current Progress and Future Directions

Syafaat

Azra

Waiho

et al. 2021

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The nursery stages of mud crab, genus Scylla, proceed from the megalopa stage to crablet instar stages. We review the definition and several of the key stages in mud crab nursery activities. The practice of the direct stocking of megalopa into ponds is not recommended due to their sensitivity. Instead, nursery rearing is needed to grow-out mud crabs of a larger size before pond stocking. Individual nursery rearing results in a higher survival rate at the expense of growth and a more complicated maintenance process compared with communal rearing. The nursery of mud crabs can be done both indoors or outdoors with adequate shelter and feed required to obtain a good survival percentage and growth performance. Artemia nauplii are still irreplaceable as nursery feed, particularly at the megalopa stage, while the survival rate may be improved if live feed is combined with artificial feed such as microbound diet formulations. Water quality parameters, identical to those proposed in tiger shrimp cultures, can be implemented in mud crab rearing. The transportation of crablets between different locations can be done with or without water. The provision of monosex seeds from mud crab hatcheries is expected to become commonplace, increasing seed price and thus improving the income of farmers. Numerous aspects of a mud crab nursery including nutrition; feeding strategies; understanding their behaviour, i.e., cannibalism; control of environmental factors and practical rearing techniques still need further improvement.

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“…[12,13]). There is growing evidence showing that marine crustacean species may be especially sensitive to climate changes, such as climate warming, because they have narrower thermal niches and are currently living closer to their thermal maximum capacity [8,[14][15][16][17].…”

Section: Introductionmentioning

confidence: 99%

What evidence exists for the impact of climate change on the physiology and behaviour of important aquaculture marine crustacean species in Asia? A systematic map protocol

et al. 2022

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Background Climate is one of the most important driving factors of future changes in terrestrial, coastal, and marine ecosystems. Any changes in these environments can significantly influence physiological and behavioural responses in aquatic animals, such as crustacea. Crustacea play an integral role as subsistence predators, prey, or debris feeders in complex food chains, and are often referred to as good indicators of polluted or stressed conditions. They also frequently have high production, consumption, and commercial significance. However, crustacean’s responses to climate change are likely to vary by species, life-history stage, reproduction status and geographical distribution. This map is undertaken as part of the Long-Term Research Grant project which aims to identify any interactive effect on physiological compensation and behavioural strategy of how marine organisms, especially crustaceans, deal with stress from environmental change. Our proposed map will aim to outline the evidence currently existing for the impacts of climate change on the physiology and behaviour of important aquaculture crustacean species within Asia. Methods We will document peer-reviewed articles in English using published journal articles and grey literature. Two bibliographic databases (Scopus and Web of Science) and multiple organizational websites with Google scholars will be searched. The systematic map protocol will follow in accordance with the Collaboration for Environmental Evidence Guidelines and Standards. Literature will be screened at the title, abstract, and full-text level using pre-defined inclusion criteria. The map will highlight marine crustacea physiological compensation and behavioural strategies to cope with climate change. It will also improve our knowledge of the available evidence and current gaps for future research recommendations.

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Thermal Tolerance and Physiological Changes in Mud Crab, Scylla paramamosain Crablet at Different Water Temperatures

Cited by 17 publications

References 48 publications

Temperature tolerance of juveniles of two mud crab species, <i>Scylla paramamosain</i> and <i>Scylla serrata</i> (Decapoda: Brachyura: Portunidae)

Temperature tolerance of juveniles of two mud crab species, <i>Scylla paramamosain</i> and <i>Scylla serrata</i> (Decapoda: Brachyura: Portunidae)

A Review of the Nursery Culture of Mud Crabs, Genus Scylla: Current Progress and Future Directions

What evidence exists for the impact of climate change on the physiology and behaviour of important aquaculture marine crustacean species in Asia? A systematic map protocol

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