Chytrid Batrachochytrium dendrobatidis fungal infection in freshwater prawn, Macrobrachium rosenbergii (de Man) - A new report

Paulraj, Ambrose; Musthafa, Mohamed Saiyad; Altaff, K.; Ali, Abdul Rahuman Hyder; Arockiaraj, Jesu; Balasundaram, Chellam; Harikrishnan, Ramasamy

doi:10.1016/j.aquaculture.2016.07.035

Cited by 6 publications

(6 citation statements)

References 32 publications

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“…125 The chytrid Batrachochytrium dendrobatidis was identified as the causative agent of discolouration and prawn mortality in M. rosenbergii farms in southern India between 2007 and 2011. 123 Affected prawns were greyish white, had a 'woolly' appearance with greyish filaments on their claws, and had problems with feeding, moulting, movement and respiration-culminating in mortality, reaching up to 90%.…”

Section: Not Describedmentioning

confidence: 99%

“…Fungal agents have tended to cause lower mortality levels than infections with viruses and bacteria, but have resulted in the discolouration of prawns, decreasing their market value. [122][123][124][125] Typically, yeast infections in M. rosenbergii have been shown to occur in the winter months when water temperatures are cooler. 122 A summary of fungi known to infect M. rosenbergii is provided in Table 3.…”

Section: Fungimentioning

confidence: 99%

“…124,126 Another species of Juveniles, adults Greyish-white body colouration, spongy appearance, lethargy, anorexia, abnormal swimming, fading of eye colour, dark spots and melanisation on cephalothorax and muscles, greyish-white filaments on claws and mortality. 123 Cuticular erosion and atrophy with fungal cells penetrating the cuticular epithelium and intramuscular regions. Gill lamellae infiltrated by proliferating yeast cells causing distension and gross enlargement.…”

Section: Fungimentioning

confidence: 99%

“…Gill lamellae infiltrated by proliferating yeast cells causing distension and gross enlargement. 123 Candida sake Candida mogii 126,127 Juveniles, adults Yellowish-brown discolouration, white opaque eyes, swelling between cephalothorax and abdomen, cloudy white haemolymph, light yellow hepatopancreas, slow swimming, lethargic, anorexia, mortality. 126 Vacuolisation of hepatopancreatic ducts and tubules with yeast aggregates in intertubular connective tissue.…”

Section: Fungimentioning

confidence: 99%

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Diseases of the giant river prawnMacrobrachium rosenbergii: A review for a growing industry

Hooper

Debnath

Stentiford

et al. 2022

Reviews in Aquaculture

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The giant river prawn, Macrobrachium rosenbergii, is a major focus of aquaculture in tropical and sub-tropical regions around the globe. Over the last 30 years, culture of M. rosenbergii has increased exponentially as demand has risen both for domestic consumption and for international export trade. As with many aquaculture species increases in production have been accompanied by the emergence of diseases affecting yield, profit and trading potential. Disease-causing agents include pathogens infecting other crustaceans, such as Decapod Iridescent Virus (DIV1), as well as pathogens only known from M. rosenbergii such as White Tail Disease caused by Macrobrachium rosenbergii nodavirus (MrNV) and extra small virus (XSV). Here, we review the pathogenic agents associated with the culture of M. rosenbergii since commercial culture began in earnest during the 1970s. Particular emphasis is given to pathogens first identified in other aquaculture host species, but which have subsequently been shown to infect and cause disease in M. rosenbergii. As polyculture of M. rosenbergii with other aquaculture species is common practice, including culture with other decapods, crabs and fish, increased pathogen transfer among these farmed species may occur as M. rosenbergii aquaculture increases in the future.aquaculture, emerging disease, giant river prawn, polyculture | INTRODUCTIONAquaculture is the fastest-growing farmed food sector, with the proportion of cultured to caught seafood increasing year-on-year. 1,2 Global aquaculture production for fish, crustaceans and molluscs surpassed 87 million tonnes in 2020, just under half of all world production. 2 Crustacean production by aquaculture far surpasses that by capture, with more than 11,000,000 tonnes in 2020 from aquaculture compared to 6,000,000 tonnes by capture. 2 Despite these considerable production figures, it is estimated that up to 40% of tropical shrimp aquaculture production is lost annually, 3 equating to losses of over 3 billion USD, and this is primarily due to infection with viral agents. 4 Losses on this scale threaten global food security, with most of the consumption of cultured crustaceans being outside of producing countries, making management and mitigation of disease of key importance to the future success of crustacean aquaculture. 4 Stentiford et al. (2012) outlines a holistic strategy involving both producer and consumer nations to improve husbandry and farm management, better understand pathogens and their spread (either by movement of animals or alternative hosts) and learn lessons from previous disease outbreaks. This review focuses on these points to outline the pathogenic agents in Macrobrachium rosenbergii culture, identify other hosts

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Section: Not Describedmentioning

confidence: 99%

Section: Fungimentioning

confidence: 99%

Section: Fungimentioning

confidence: 99%

Section: Fungimentioning

confidence: 99%

See 2 more Smart Citations

Diseases of the giant river prawnMacrobrachium rosenbergii: A review for a growing industry

Hooper

Debnath

Stentiford

et al. 2022

Reviews in Aquaculture

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“…Degraded nutrient inputs in water will also cause deterioration and deleterious effects on water quality (Gorlach‐Lira et al, 2013; Tran et al, 2013). In addition, water quality deterioration may increase the incidence of diseases (Paulraj et al, 2016).…”

Section: Introductionmentioning

confidence: 99%

Feasibility and compatibility of polyculture of Litopenaeus vannamei and Macrobrachium rosenbergii in the intertidal ponds

Chen

Gao

et al. 2021

Aquaculture Research

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This study was conducted to assess the compatibility of white shrimp Litopenaeus vannamei and giant freshwater prawn Macrobrachium rosenbergii in the polyculture system. Twelve 0.6 ha intertidal mudflat ponds of shrimp in the region around Hangzhou Bay, China, were divided into four culture systems based on the stocking densities of prawns. The groups were divided into the following: control (CON, no prawn), low stocking density (LSD, 75,000 ha−1), middle stocking density (MSD, 150,000 ha−1) and high stocking density (HSD, 225,000 ha−1) groups. Results showed that the survival (%), final weight, final length and condition factor of reared shrimp exhibited no significant difference among different culture systems. The profits of the polyculture systems significantly increased with prawn stocking density. The mean values of water quality parameters showed no significant difference (p > 0.05) between treatments. Phytoplankton abundance and biomass were significantly reduced in the polyculture groups. Desulforegula (9.39%), Citreicella (4.23%), Gemmobacter (3.66%) and Phycisphaera (2.93%) were the prevailing genera in the CON group. Aeromonas was the most abundant genus in the HSD group. However, most pathogenic bacteria in the pond water were undetected or observed at extremely low levels. The levels of Aeromonas and Pseudomonas sharply increased in the HSD group. These findings suggest that polyculture systems can increase profit without influencing water quality. However, high polyculture at 225,000 ind ha−1 may potentially cause pathogenic bacterial infection. Thus, the recommended model for this polyculture system is shrimp (900,000 ha−1) + prawn (150,000 ha−1).

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Herptile Cytodiagnosis

2022

Exotic Animal Hematology and Cytology

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Chytrid Batrachochytrium dendrobatidis fungal infection in freshwater prawn, Macrobrachium rosenbergii (de Man) - A new report

Cited by 6 publications

References 32 publications

Diseases of the giant river prawnMacrobrachium rosenbergii: A review for a growing industry

Diseases of the giant river prawnMacrobrachium rosenbergii: A review for a growing industry

Feasibility and compatibility of polyculture of Litopenaeus vannamei and Macrobrachium rosenbergii in the intertidal ponds

Herptile Cytodiagnosis

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