Sturgeon Aquaculture and Health Management

Sturgeon aquaculture occupies a unique niche in global fish farming owing to the high economic value of caviar and meat, the conservation imperatives surrounding endangered wild populations and the species’ distinctive life history traits. Most cultivated sturgeon species require extensive broodstock management, intricate larval rearing protocols and long grow-out periods before harvest. Health management underpins profitability and sustainability, encompassing biosecurity measures, vaccination strategies, disease surveillance and diagnostic tools to combat viral, bacterial and parasitic threats. Chronic stressors such as elevated temperatures, water quality deterioration and nutritional imbalances further compound disease susceptibility. Integrated approaches that combine molecular biomarkers, real-time pathogen detection and selective breeding for disease resistance are increasingly adopted. These efforts not only safeguard farm productivity but also support restocking programmes aimed at reversing declines in wild sturgeon populations.

Research from Nature Portfolio

Recent studies have leveraged high-throughput sequencing and immunological assays to elucidate sturgeon host–pathogen interactions. In hybrid sturgeon challenged with Aeromonas hydrophila, comprehensive transcriptome profiling of spleen tissue revealed marked upregulation of innate immune pathways, including toll-like receptor, NF-κB, complement and scavenger receptor signalling. Thousands of candidate SNPs and SSRs were identified, offering tools for selective breeding of disease-resistant lines. In Russian sturgeon subjected to bacterial challenge, serum amyloid A emerged as a robust positive acute-phase protein. An in-house ELISA enabled quantification of SAA in circulation, establishing a non-invasive biomarker that mirrors hepatic gene expression and provides early warning of inflammatory responses. Together, these molecular advances furnish the industry with precise diagnostics and genomic resources to enhance health management and biosecurity.

Sturgeon Aquaculture and Health Management publication trend

The graph below shows the total number of articles in sturgeon aquaculture and health management across all publications each year (not limited to Nature Index journals).

Technical terms

Acute-phase protein: A plasma protein whose concentration rises or falls in response to inflammation, serving as a biomarker of immune activation.
Complement pathway: A cascade of plasma proteins that enhances antibody-mediated and innate immune responses to pathogens.
Extracellular vesicles (EVs): Nano- to micron-sized membrane-bound particles released by cells, carrying proteins, lipids and nucleic acids for intercellular communication.
Real-time PCR: A molecular technique that amplifies and quantifies specific DNA sequences in real time to detect pathogens.
Serum amyloid A (SAA): A major acute-phase protein whose serum concentration increases rapidly during infection and inflammation.
SNP (single nucleotide polymorphism): A variation at a single nucleotide position in genomic DNA among individuals, used as a genetic marker.
Transcriptome: The complete set of RNA transcripts produced by the genome under specific conditions, reflecting gene expression patterns.

References

1. Identification, Pathogenicity, and Antimicrobial Resistance Analysis of Bacterial Pathogenesis Aeromonas hydrophila from Hybrid Sturgeon (Huso dauricus ♀ × A. schrenckii ♂) in Zhejiang, China. Microorganisms (2025).
2. Sturgeon and paddlefish: Review of research on broodstock and early life stage management. Aquaculture and Fisheries (2024).
3. Detection of Acipenser European Iridovirus (AcIV-E) in Sturgeon Farms in Northern Italy between 2021–2023. Viruses (2024).
4. Extracellular vesicles and citrullination signatures are novel biomarkers in sturgeon (Acipenser gueldenstaedtii) during chronic stress due to seasonal temperature challenge. Fish & Shellfish Immunology (2024).
5. Transcriptome analysis of Aeromonas hydrophila infected hybrid sturgeon (Huso dauricus×Acipenser schrenckii). Scientific Reports (2018).
6. Serum amyloid A is a positive acute phase protein in Russian sturgeon challenged with Aeromonas hydrophila. Scientific Reports (2020).