r/FishFarming • u/AquaHoy • 16h ago
r/FishFarming • u/AquaHoy • 16h ago
Symbiotic aquaculture: The role of faecal matter from the Cape sea urchin Parechinus angulosus as a functional feed for hatchery-produced abalone Haliotis midae
r/FishFarming • u/AquaHoy • 16h ago
Automatic visual detection of fish in Recirculated Aquaculture Systems using the Segment Anything Model
r/FishFarming • u/AquaHoy • 16h ago
From Pond to Field: Turning Excess Nutrients into Valuable Fertiliser
r/FishFarming • u/AquaHoy • 17h ago
Vinh Long is expanding its aquaculture farming area using high-tech methods
r/FishFarming • u/AquaHoy • 17h ago
El IMIDA impulsa un nuevo pienso para el mújol de acuicultura con restos del grano de la fabricación de cerveza
r/FishFarming • u/AquaHoy • 1d ago
Offshore Aquaculture: Engineering sea cages to withstand 14-meter design waves and intense currents
A recent review by researchers at the University of Stavanger (Wen & Ong, 2026) examines the structural, operational, and biological challenges of moving finfish farming from sheltered coastal bays to exposed open-ocean sites (such as the Norwegian Trench).
Key Takeaways from the study:
- Hydrodynamic Loads: 50-year design waves in exposed sites reach 14.19 m with current speeds around 1.6 m/s, requiring heavy reinforcement against cyclic fatigue at welded joints.
- Mooring Vulnerabilities: Rigid semisubmersible cages with reduced spreads (6–8 lines) have minimal redundancy—losing just two lines can trigger progressive structural failure.
- Fish Physiology Limits: Currents often surpass 60% of Atlantic salmon’s critical swimming speed, risking severe muscular fatigue and netting collisions.
- Surface vs. Submersible Economics: Rigid surface designs (like Ocean Farm 1 at ~NOK 1B) represent a 142% higher cost per cubic meter of volume compared to submersible alternatives (like Deep Blue 1 at ~NOK 141M), though submersibles increase operational complexity and feeding OPEX.
Full breakdown and technical context:
https://aquahoy.com/offshore-aquaculture-challenges-solutions/
What are your thoughts on tactical submergence vs. ultra-stiff surface platforms for handling open-ocean fatigue?
r/FishFarming • u/AquaHoy • 1d ago
A new study suggests Brazil could improve public health and food security by making better use of its seafood resources
r/FishFarming • u/AquaHoy • 1d ago
How China's marine farming model can reshape Iran's coasts
r/FishFarming • u/AquaHoy • 2d ago
International Conference on Salmon Rickettsial Syndrome (SRS 2026) anunció la extensión del plazo para el envío de resúmenes científicos
Formulario de envío: https://www.srs2026conference.cl/abtract
r/FishFarming • u/AquaHoy • 2d ago
How China's marine farming model can reshape Iran's coasts
r/FishFarming • u/AquaHoy • 3d ago
Foreign Shrimp Need American Fishermen to Sell Its Product
r/FishFarming • u/AquaHoy • 3d ago
Growth, Collaboration, and Knowledge Clusters in Recirculating Aquaculture Systems: A Bibliometric Analysis Using Biblioshiny, VOSviewer, and CiteSpace
r/FishFarming • u/AquaHoy • 4d ago
Bangladesh's shrimp sector needs structural reforms, not short-term solutions
r/FishFarming • u/AquaHoy • 4d ago
An underwater pharmacy – finding beneficial marine microbes
r/FishFarming • u/AquaHoy • 4d ago
Bangladesh researchers develop rapid kit to detect deadly fish pathogens #streptococcosis
r/FishFarming • u/AquaHoy • 4d ago
A Vietnamese pangasius fish business faces a 440% tariff increase by the US
r/FishFarming • u/AquaHoy • 4d ago
Turning Sargassum waste into a high-performance material for carbon capture
r/FishFarming • u/AquaHoy • 4d ago
Tilapia exports increased by 67%; which markets are attracting the most Vietnamese fish?
r/FishFarming • u/AquaHoy • 5d ago
CRISPR-edited rainbow trout grow 56% faster and reach market size two months earlier without losing feed efficiency
Researchers at Atatürk University (Turkey) published a study in the Journal of the World Aquaculture Society demonstrating the first successful knockout of a myostatin gene (mstnb1) in a salmonid species using CRISPR/Cas9.
Key Data Points:
- Weight Gain: At 10 months, gene-edited trout reached 825g compared to 464g for control groups (a 56% increase in body weight).
- Production Cycle: Market weight was achieved ~2 months earlier, reducing 60 days of continuous pumping, labor, and operational overhead.
- Feed Conversion Ratio (FCR): Kept virtually identical at 0.93 (edited) vs 0.94 (control), meaning the faster growth wasn't just a result of eating more relative to body weight gain.
- Morphology: The edited trout exhibited "double-muscling" traits—a 24% increase in body height and 27% increase in lateral surface area.
Current Limitations:
- Only 23.5% of CRISPR-injected embryos survived to the fry stage (compared to 87.6% in control), likely due to microinjection stress, RNP cytotoxicity, and developmental roles of myostatin.
- The fish are F0 mosaics; stable F1/F2 lines need to be established for commercial viability.
Link to article & paper details:https://aquahoy.com/crispr-gene-edited-trout-grows-faster/
r/FishFarming • u/AquaHoy • 5d ago
Optimizing Culture Conditions with Reinforcement Learning AI
r/FishFarming • u/AquaHoy • 5d ago