Articles tagged with Aquaculture
A study by the University of Plymouth found that international regulations governing marine protected areas (MPAs) are often ambiguous, failing to provide clear rules for satellite-based enforcement. This limitation hinders the effective use of satellite monitoring to prevent illegal activities, such as industrial fishing, in MPAs. The...
A study published in Water Biology and Security reveals vertebrate biodiversity in the Italian River Serchio Basin through eDNA metabarcoding, detecting 62 species across five classes. The method outperformed traditional monitoring, with main river channels containing more eDNA diversity than smaller tributaries.
Researchers developed StereoGeoBox, a system that estimates fish dimensions and weight without generating a complete depth map. The system achieved the lowest estimation errors compared to conventional methods, while producing fewer outliers and demonstrating real-time performance.
Researchers developed a novel vaccination system for farmed fish using water-resistant, food-grade microneedles that can deliver vaccines without sedating fish or using needles. This approach aims to improve fish health and reduce labor intensity, stress, and costs for farmers.
A new study estimates that fully restored oyster reefs in hotspot countries could yield a gross ecosystem product (GEP) of $12 trillion. Oyster reefs could deliver ecosystem services worth trillions to human wellbeing and the global economy, including water filtration, shoreline protection, and carbon sequestration.
The University of Stirling has secured £2.4m to develop practical alternatives to antibiotic use in Vietnam's pangasius catfish industry. The 48-month study explores the causes and complexity of antimicrobial resistance in freshwater environments.
Researchers found a chimera mutant in a hybrid red swamp crayfish, showing irregular distribution of multiple genotypes within the same individual. The study provides valuable insights into the formation and maintenance of chimeras, which may also contribute to understanding biological mechanisms in organ transplantation.
Mississippi State University is being recognized as a leading expert in antimicrobial resistance and aquaculture biosecurity by the Food and Agriculture Organization. The university's work in this area will continue to support global efforts to promote responsible antimicrobial use and strengthen aquatic food systems.
A new study led by Bigelow Laboratory for Ocean Sciences found moderate genetic diversity within sugar kelp populations in Maine's kelp forests, identifying four distinct populations shaped by oceanography. The findings highlight the importance of regional management strategies to protect and leverage this genetic resource.
SUNY Cortland students are participating in research internships at fisheries across New York, led by USGS grants and partnerships with other institutions. The internships provide hands-on experience, skills in field and lab techniques, and opportunities to network with professionals and graduate students.
Researchers have developed a new method to collect and study salmon lice secretions, allowing for the examination of individual lice and reducing faecal contamination. The study found 148 secretory proteins, 64 of which were detected in each tested condition, potentially representing targets for vaccine development.
A new study found that certain carp species, such as goldfish and silver carp, are resistant to the devastating Koi herpesvirus (CyHV-3) and do not easily transmit it to common carp. This discovery offers a hopeful perspective on managing the disease in fish farms and freshwater ecosystems.
Researchers have identified Ruppia maritima as a resilient native seagrass species that can help restore degraded estuarine habitats. The species has a distinctive annual life cycle and a persistent seed bank, allowing it to persist through disturbance and regenerate when conditions improve.
For the first time in Brazil, scientists have detected bacteria that cause columnaris disease, a serious disease in farmed fish. The study found that six out of eleven isolated strains were of the Flavobacterium oreochromis species, infecting native Brazilian species such as tambaqui, pacu, and Amazon spotted catfish.
Pastoral communities in Tiaty, Kenya, are adapting to climate variability by changing livestock patterns, farming practices, and settlement arrangements. These adaptations suggest a selective conversion of land from dense shrubland to mixed areas, with a focus on drought-tolerant crops and climate-resilient livestock species.
A new study has developed a high-resolution inventory of veterinary antibiotic emissions across China, tracking emissions from livestock and aquaculture into soil, freshwater, and seawater. The inventory estimated that approximately 23,110 tonnes of veterinary antibiotics were released into China's environment in 2020.
Research found that mulberry branch-derived biochar enhances digestive enzyme activity, strengthens antioxidant responses, reshapes gut microbiota, and reduces harmful nitrogen compounds in aquaculture water. Moderate dietary levels showed improved fish health and reduced environmental stress without impairing growth performance.
Researchers at Okayama University of Science successfully recorded shrimp feeding behavior under simulated microgravity conditions. They found genetic analysis results appeared to be caused by exposure to a microgravity environment.
Researchers found that mulberry branch biochar improved digestive enzyme activity, strengthened intestinal barrier function, and reduced harmful bacteria in largemouth bass. The study also showed that dietary biochar can lower ammonia nitrogen and nitrite nitrogen levels in aquaculture water without negatively affecting fish growth.
The FAU Queen Conch Mobile Lab has successfully hatched its first queen conch egg masses and juveniles, marking a significant milestone in the conservation of this iconic Caribbean species. The lab, designed to grow up to 2,000 juvenile queen conchs annually, will support restoration efforts throughout the region.
Researchers at Okayama University of Science have successfully cultivated juvenile chum salmon in a land-based aquaculture system using third water. The project aims to establish fully closed-cycle aquaculture, which could fundamentally change the future of salmon production and contribute to long-term sustainability.
The University of Miami Rosenstiel School is part of a national effort to strengthen America's seafood supply through aquaculture research and technology development. Researchers will contribute expertise in ocean science, environmental forecasting, and aquaculture innovation to develop science-based solutions for responsible growth.
The University of New Hampshire will lead a national effort to grow and strengthen America's seafood supply through aquaculture research, with a focus on sustainability and environmental friendliness. The $13.5 million initiative aims to expand domestic seafood production and improve food security.
Thawing permafrost is causing Arctic rivers to turn toxic with orange iron particles, suffocating insects and smothering fish. The process also involves acid rock drainage, where pyrite breaks down into sulfuric acid and sulfate, creating rust-like particles.
Researchers successfully created a novel, stably inheritable grass carp germplasm without intermuscular bones using the runx2b gene. The absence of IBs did not affect the fish's quality or nutritional profile, but improved gel strength and resilience were observed.
Neanderthals collected shellfish throughout the year, but preferred colder months, demonstrating a well-planned strategy. This finding suggests Neanderthals had access to high-quality marine proteins essential for brain development and reproductive health.
Researchers tracked black sea bream using ultrasonic biotelemetry to observe their reproductive behavior during spawning seasons. Males made frequent upward and downward movements, while females remained near specific oyster rafts, suggesting different strategies for reproduction and energy conservation. This study provides new insight...
Researchers have developed a non-chemical method to kill burrowing shrimp in targeted areas, reducing their population by up to 98%. The technique uses vibration and pressure to compact sediment and trap shrimp, starved of oxygen, leading to their death. The method shows promise for shellfish farmers struggling with the invasive species.
In an experiment, yellow trout grew larger than the wild strain, with averages of 300 grams at 270 days compared to 237-gram range for wild-type ones. The study suggests potential for aquaculture and sport fishing, with color variation leading to different products.
Researchers found that cultivating seaweed species alongside marine finfish can significantly reduce key waste products from fish farming. The study provides guidance for aquaculture producers to incorporate seaweed into existing and prospective integrated multi-trophic aquaculture systems.
The CIRTESU at Universitat Jaume I develops an experimental modular robotic fish prototype for aquaculture, reducing fish stress. The UJIFISH-I platform demonstrates high manoeuvrability and reliable target detection accuracy in controlled tests.
A new UBC study found that global aquaculture production is increasingly relying on less beneficial species for food security, climate mitigation, and biodiversity. The industry's shift towards finfish has lower sustainability potential, while earlier systems like seaweed and shellfish had higher sustainability.
A new aquaculture facility is being built in Namie Town, Fukushima Prefecture, to support Benizake salmon farming using 'The Third Water'. The facility will have a capacity over eight times larger than the existing tank and aims to raise fish from eggs and ship them two years later.
The Okinawa Institute of Science and Technology (OIST) has developed a scalable aquaculture platform that automates early-life stages, minimizing pathogen exposure and animal stress. The system uses light and flow-guided systems to improve survival rates and reduce labor input.
A USF study reveals gag grouper populations in the Gulf are overfished, with shortened seasons to aid recovery. The research team developed a statistical model to improve harvest predictions and provide explicit estimates of quota exceedance.
Researchers in Oman have launched a pilot seaweed farm to evaluate the commercial feasibility of cultivating native seaweed species. The project aims to establish a scalable and sustainable blue-economy sector based on marine biotechnology and aquaculture innovation.
A new scientific review highlights a growing environmental challenge linked to modern food production, where waste from livestock and aquaculture operations contains complex mix of emerging contaminants. These pollutants can spread through ecosystems and ultimately affect human health.
A new study suggests that releasing pollack closer to their natural catch depths can significantly improve their chances of survival. The research found that releasing fish at these depths can increase survival rates from 56% to over 80%. This could have a positive impact on the long-term sustainability of recreational pollack fisheries.
The English listening section of the Common Test for University Admissions featured land-based aquaculture using 'the new type of water', a mixture of seawater and freshwater minerals. This innovative method enhances fish growth rates, disease resistance, and reduces salt content, addressing global food shortages.
Farmed trout fed plant-based diets exhibit lower growth rates and efficiency, but delayed brain opioid system changes occur later. The study found that opioid-related genes are affected after 8 months, suggesting a strong engagement of reward pathways under long-term nutritional pressure.
Researchers found a neuroendocrine mechanism linking ovarian status to brain signals controlling sexual receptivity in female teleosts. Progesterone analogs restored sexual behavior but not ovulation, suggesting a direct neural pathway for hormone reception.
Benizake salmon farming is expanding in Namie Town, Fukushima, with the help of Japan's Subsidy for Business Location program. The project aims to revitalize commercial activity and create employment opportunities for affected residents after the 2011 Great East Japan Earthquake and Tsunami.
A £1.4 million funding has been secured by the University of Stirling to explore tissue remodelling processes in salmon, with a focus on reducing mortality linked to gill and skin health issues. The research will deliver practical tools for fish health and productivity while enhancing sustainability in the Scottish aquaculture industry.
Researchers have successfully induced sexual reversal in all-female mandarin fish using functionalized Single-Walled Carbon Nanotubes as a delivery vehicle. Key genes amh and amhy were introduced into juvenile fish through an immersion bath, leading to detectable gene expression in the gonads.
A new study reveals that the S-enantiomer of o,p'-DDD pesticide metabolite is more toxic to zebrafish larvae and has severe consequences for their development. The research found that maternal transfer was highly efficient, with the S-enantiomer accumulating in higher levels than its mirror-image R-form.
A new resource has been developed to help kelp farmers in Maine reduce their production costs. The tool provides detailed economic analyses and identifies strategies for sustainable business plans. By using this tool, kelp farmers can achieve economic sustainability and improve their bottom line.
A study published in npj Ocean Sustainability reveals that traditional Hawaiian fishponds (loko iʻa) effectively shield fish populations from the negative impacts of climate change. The research found that loko iʻa fish populations were more resilient to rising water temperatures than those in surrounding estuaries.
The FAU Queen Conch Lab has developed mobile lab hatcheries to restore threatened Caribbean queen conch populations and promote sustainable seafood production. These self-contained units bring advanced aquaculture capabilities to coastal communities, supporting education, employment, and food security.
Researchers find that farmed totoaba could alleviate poaching pressures by establishing a regulated trade. The study suggests that a market-based solution may be more effective than a regulatory approach in curbing poaching. A $6 million subsidy program could make farming cheaper and prevent further decline of the wild population.
The robot fish, developed at Universitat Jaume I, has been recognized for its ability to deploy and retrieve sensors in the marine environment. Its advanced features include biomimetic fins, umbilical communication system, and visual inspection system for internal analysis of fish farm nets.
Research reveals community management effectively protects vast areas of Amazonian forest, safeguarding biodiversity and supporting local communities. Community-led conservation efforts are crucial for long-term sustainability, but require recognition and financial support.
Researchers have developed new eDNA tools to quantify kelp-derived biomass in sediments below commercial kelp farms. The study confirms that kelp aquaculture has little impact on the seafloor community and provides evidence for using eDNA to examine 'blue carbon' accounting efforts.
A study from the Chinese Academy of Sciences found that adding traditional herb Picria fel-terrae to fish feed improves gut structure and reduces inflammation. The herb protects intestinal health, balances immune responses, and enhances metabolism.
Researchers developed an AI tool to assess tambaqui fish stress levels based on their lower half body coloration. The study found that stressed fish became darker, and the trait is heritable, impacting animal welfare and farming practices.
A global review highlights the need for better tools to understand juvenile fish habitats, which are facing increased pressure from various factors. The study recommends incorporating metrics like growth, survival, and contribution rates to assess habitat quality.
The Leopoldina webinar discusses the conditions and practical recommendations for sustainable freshwater aquaculture in Germany and Brazil. The report highlights the potential of this method to contribute significantly to global food security, reduce water and land consumption, and promote a circular economy.
Scientists have identified a previously unknown virus in Pacific oysters linked to annual mass die-offs, highlighting the importance of disease prevention measures. The discovery also underscores the need for further research into the causes of mortality in oyster populations.
Researchers have mapped the microbiome of agri-food systems, revealing how diverse and balanced microbes keep our food safe, nutritious, and sustainable. The map highlights areas where targeted interventions such as probiotics and biofertilizers can improve food quality and reduce antibiotic use.
Researchers have mapped microbial networks underpinning healthy food systems, highlighting the need for integrated approaches to address climate crisis, antibiotic overuse and pesticide reliance. This work is driving microbiome-based solutions for animal, human and environmental health.
A new study revisits forecasts made in 2002 about the world's rocky shorelines, finding some threats have materialized while others have not. The researchers highlight the importance of addressing issues like ocean acidification and plastic pollution to protect coastlines.