Biotechnological tools in diagnosis and control of emerging fish and shellfish diseases

Mishra, S. S.; Das, Rakesh; Sahoo, Satya Narayan; Swain, P.

doi:10.1016/b978-0-12-816352-8.00014-x

Cited by 11 publications

(5 citation statements)

References 58 publications

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“…Research should further quantify the economic and ecological benefits of promoting local species and explore market dynamics to tailor strategies for the Indian ornamental fish industry. Addressing emerging challenges in ornamental fish culture, particularly the rise of novel diseases like the iridovirus affecting koi carp, necessitates proactive measures [73]. Future research should focus on monitoring disease trends, identifying potential pathogens, and developing effective prevention strategies.…”

Section: Future Perspectives and Research Gapsmentioning

confidence: 99%

Genetic Advancement, Global Trade Dynamics, Persistent Challenges and Future Prospects in Ornamental Fish Culture

Alam,

Abbas,

Zehra

et al. 2024

AJRiZ

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Ornamental fish culture is a specialized branch of aquaculture. This domain has emerged as a dedicated endeavour involving the breeding, care and trade of visually captivating and often exotic fish species. This comprehensive review examines the dynamic landscape of ornamental fish culture within aquaculture, highlighting key advancements and challenges. The global industry, valued at billions, is propelled by selective breeding, resulting in diverse ornamental fish varieties. Singapore's pivotal role as an exporter, especially of culturally significant species like Betta fish, exemplifies the industry's global prominence. Artificial reproduction methods and genetic advancements, such as the identification of the MC1R gene, showcase innovations in breeding practices. Environmental management, crucial for ornamental fish health, is exemplified by cutting-edge practices in high-profile aquariums, emphasizing the influence of water parameters on fish well-being. Disease prevention strategies, including innovative diagnostic tools, are implemented by industry leaders like the Qian Hu Fish Farm. The global ornamental fish trade, influenced by cultural preferences, is supported by data revealing economic dimensions and market dynamics. India's potential in the industry, leveraging its biodiversity, is showcased with instances from the Eastern Ghats. Challenges, including diseases and habitat degradation, are addressed by initiatives like the Marine Aquarium Council (MAC), emphasizing responsible sourcing. Regulatory frameworks, exemplified by the European Union, underscore caution in genetic modification, emphasizing the need for responsible applications. In conclusion, the review provides a nuanced synthesis of data, facts, and instances, offering a comprehensive understanding of ornamental fish culture's present status, challenges, and promising future. The industry emerges as a leader in technological and ethical innovation within the broader realm of aquaculture.

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Section: Future Perspectives and Research Gapsmentioning

confidence: 99%

Genetic Advancement, Global Trade Dynamics, Persistent Challenges and Future Prospects in Ornamental Fish Culture

Alam,

Abbas,

Zehra

et al. 2024

AJRiZ

View full text Add to dashboard Cite

show abstract

“…Thus, it is necessary to search for universal markers for their early detection including field monitoring and laboratory examinations. Timely diagnostics, strengthening of preventive measures at the first signs of compromised welfare in fish stock and specific treatment in the case of disease progression could reduce the mass mortality of fish and reduce the financial losses for farms (Adams & Thompson, 2011; Mishra et al, 2020; Subasinghe et al, 2001).…”

Section: Introductionmentioning

confidence: 99%

Infection and antibiotic treatment have prolonged effects on gut microbiota, muscle and hepatic fatty acids in rainbow trout (Oncorhynchus mykiss)

Parshukov

Fokina

Sukhovskaya

et al. 2022

Journal of Applied Microbiology

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Aims:The aim of the present study was to investigate the gastrointestinal (GI) microbiota and bacterium-specific fatty acid occurrence in the muscle and hepatic lipids of rainbow trout Oncorhynchus mykiss (Walbaum, 1792), both healthy and those naturally infected with bacterial pathogens. Methods and Results:From June 2017 (L1) to September 2018 (L8), 74 specimens of rainbow trout Oncorhynchus mykiss (with an average weight from 139.2 ± 7.1 g (L1) to 2191.7 ± 85.1 g (L8)) were studied. Amplicon sequencing targeted to the V3-V4 region of 16S rRNA gene fragments is used for the identification of the taxonomic composition of gut bacterial communities. Firmicutes, Bacteroidetes, Proteobacteria, Tenericutes and Fusobacteria were the major phyla. Besides behavioural and physiological manifestations of the bacterial mixed disease (yersiniosis, pseudomonosis and flavobacteriosis), some disorders induced by both the infection and followed antibiotic treatment were detected in the host organism, including (1) a progressive decrease in the content of odd-chain saturated fatty acids of bacterial origin within the trout lipid molecules and (2) abnormalities in trout GI tract microbiota, such as the elimination of LAB and progressive occurrence of certain bacterial taxa, particularly Mycoplasmataceae. Conclusions:The GI bacterial flora varied principally due to Mycoplasmataceae and Lactobacillaceae, which could be considered in the search for bioindicators. The content of specific bacterium-derived fatty acids incorporated into the lipids of trout muscle and hepatic seems to be related to the prevalence of bacterial taxa, and their deficit could be regarded as an early warning sign of microbiota disturbance.Significance and impact of study: Our results demonstrated that infectious disease and antibiotic treatment of reared species can cause a pertinent imbalance in their gut microbiota and reduce the abundance of specific fatty acids. This can be useful for the sustainable aquaculture industry due to the development of early indication technologies for rapid disease diagnosis. K E Y W O R D S16S rRNA gene amplicon sequencing, antibiotic, bacterium-derived odd-chain saturated fatty acid, disease, freshwater aquaculture, gut microbiome, rainbow trout T A B L E 1 The mean water temperature and dissolved oxygen (DO) by month for both years (2017/2018) Date Temperature, °C (mean ± SE) DO, mg/L (mean ± SE)

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“…Early detection of Y. ruckeri can hasten intervention and circumvent mortality events during ERM outbreaks in farmed salmonids ( 8 , 9 ). The traditional method of identifying this pathogen in the laboratory is by culture and isolation using general-purpose media, usually followed by a series of biochemical tests to determine the genus and species of the bacterium ( 10 ).…”

Section: Introductionmentioning

confidence: 99%

Development and validation of main spectral profile for rapid identification of Yersinia ruckeri isolated from Atlantic salmon using matrix-assisted laser desorption/ionization time-of-flight mass spectrometry

et al. 2022

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Matrix-assisted laser desorption/ionization time-of-flight mass spectrometry (MALDI-TOF MS) allows rapid and reliable identification of microorganisms. The accuracy of bacterial identification using MALDI-TOF MS depends on main spectral profiles (MSPs) provided in a quality-assured commercial reference library, which requires ongoing improvement. This study aimed to develop and validate an in-house MALDI-TOF MS MSP to rapidly identify Yersinia ruckeri isolated from Atlantic salmon (Salmo salar). The novel MSP was prepared using an isolate of Y. ruckeri recovered from Atlantic salmon and confirmed by 16S rRNA gene sequencing. Subsequently, a validation set which comprises 29 isolates of Y. ruckeri were examined from three fishes: Atlantic salmon (Salmo salar) (n = 26), American eel (Anguilla rostrata) (n = 1), and Atlantic cod (Gadus morhua) (n = 2). These isolates were randomly selected from the Atlantic Veterinary College, Aquatic Diagnostic Services Bacteriology Laboratory's culture collection to validate the novel MSP. Analytical sensitivity of MALDI-TOF MS using the novel MSP to identify the validation set was 86.2%. Repeatability was assessed by acquiring spectra from 30 different spots of a randomly-selected isolate of Y. ruckeri, and analyzed spectra from each spot were compared against the novel MSP. The coefficient of variation was 3.3%. The novel MSP clustered with Bruker MSPs (n = 3) of Y. ruckeri in the reference library and did not falsely identify any closely related bacteria to Y. ruckeri. This study reports the development of a novel MSP of high analytical sensitivity and specificity for rapid identification of Y. ruckeri using MALDI-TOF MS.

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Biotechnological tools in diagnosis and control of emerging fish and shellfish diseases

Cited by 11 publications

References 58 publications

Genetic Advancement, Global Trade Dynamics, Persistent Challenges and Future Prospects in Ornamental Fish Culture

Genetic Advancement, Global Trade Dynamics, Persistent Challenges and Future Prospects in Ornamental Fish Culture

Infection and antibiotic treatment have prolonged effects on gut microbiota, muscle and hepatic fatty acids in rainbow trout (Oncorhynchus mykiss)

Development and validation of main spectral profile for rapid identification of Yersinia ruckeri isolated from Atlantic salmon using matrix-assisted laser desorption/ionization time-of-flight mass spectrometry

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