Articles tagged with Aquaculture
A study by Chuo University reveals that American eel is widely distributed in processed eel products sold at Japanese retail stores, contradicting the country's primary reliance on Japanese Eel. The research highlights the need for sustainable use of anguillid eels beyond Japanese Eel to ensure their conservation.
A study found that combined low pH and polystyrene microplastic exposure synergistically exacerbated oxidative damage and immune suppression in Chinese mitten crabs. Gut microbiota showed substantial functional alterations despite maintained alpha-diversity.
Researchers at the University of Stirling have identified fibroblast-like stem cells in the skin of Atlantic salmon, which play a central role in wound healing and tissue remodeling. These adult stem cells are thought to be involved in maintaining the skin's barrier and structural properties.
Researchers developed an in vitro assay to evaluate the anti-pathogen efficacy of mixed algal microbiomes from live-feed microalgae Tetraselmis suecica and Isochrysis galbana. The study found that mixtures of bacteria could inhibit Vibrio anguillarum, a fish pathogen, and isolated pure cultures of bacteria.
A new study reveals the global distribution of FMFO factories, highlighting Peru's high production and potential environmental impacts. The study provides a starting point for addressing these issues through more transparent data, regulation, and sustainable practices.
A mysterious parasite is devastating fish farms globally, causing £50 million in losses annually. Researchers have discovered a new gene regulation process that could lead to the development of gene-based vaccines.
A new study reveals that Malaysia's capture fisheries have stalled despite being critical to the country's food security and economy. Aquaculture, including farmed fish and seaweed, is now driving growth with seaweed farming becoming a single largest component of aquaculture output.
Research by Griffith University warns that over 43% of Queensland's productive aquaculture sites are expected to be impacted by sea level rise. The study projects significant economic losses due to the impact on prawn production, with annual losses estimated at AUD$12.6-127.6 million.
A UMaine study compares two scallop farming methods to determine which approach yields the best results. Ear-hanging culture was found to have slightly larger shell heights and up to 12% more adductor muscle weight, a key factor in market value. The research provides new insights for commercial growers aiming to maximize profitability.
A new Sea Grant publication provides clarity to Great Lakes fish farmers navigating permits, policies, and regulations hindering their operations. The comprehensive report breaks down complex legal frameworks, offering practical insights for understanding state and regional requirements.
A study published in Ocean and Coastal Management reveals that artisanal fishers can be almost as accurate as satellites in producing environmental data. The researchers mapped seagrass beds along the coastlines of five Greek islands, with fishermen's maps showing an average accuracy of 78%, compared to 11% more than government policies.
A study successfully uses CRISPR/Cas9 to disrupt the tyrosinase-related protein B (tyrb) gene in grass carp, resulting in the generation of red-eyed golden mutants. This innovation offers a solution to address genetic degradation and improves ornamental value and disease resistance.
Climate change drives large increases in electricity demand and costs in Texas due to extreme temperatures. Meanwhile, atmospheric rivers become more frequent, larger, and moister globally. Diagnostic studies also predict malaria outbreaks with five-month lead time using sea-surface temperature anomalies.
Researchers at Hiroshima University have discovered complex interactions between Pseudo-nitzschia groups and other algal species, suggesting salinity has a more significant influence than previously thought. This understanding is crucial for predicting harmful algal blooms, which cause substantial damage to the aquaculture industry.
Researchers successfully rehabilitated a decommissioned stormwater management pond, creating a habitat for 16 native fish species. The pond provided connectivity between the river and lake, allowing fish to freely move between the two, indicating potential as important spawning grounds.
The study traces the evolutionary history of brown algae through genomic analysis, highlighting their role in sustaining coastal habitats and combating climate change. The research also identifies practical applications in aquaculture, biotechnology, and ecosystem restoration.
A new study highlights the pressures human activities place on tropical marine ecosystems, with fishing techniques and tourism posing the greatest threat. The research provides insights into the impact of various activities on different habitats, shedding light on how to ensure sustainable management.
Researchers analyzed four diets: Indian, Mediterranean, EAT-Lancet, and average government-recommended guidelines. The Indian diet showed the greatest reduction in global environmental pressure (20.9%), while FBDGs led to a potential 35.2% increase.
A recent study by Tracie Delgado and colleagues found that 18% of salmon samples from Seattle grocery stores and sushi restaurants were mislabeled. The researchers called for continued development and enforcement of legislation against salmon fraud to prevent accurate tracking of supply chains and conserve wild salmon.
A study published in Water Biology and Security reveals spatial and temporal patterns of biodiversity in four taxonomic groups along the Za'gya Zangbo River. The findings emphasize the importance of considering multiple biological groups in biomonitoring high-altitude rivers, and highlight areas that require targeted conservation efforts.
The study, led by an international team of scientists, suggests that global fish farming relies on significantly larger quantities of wild-caught ocean fish than previously calculated. The findings indicate a 27-307% higher ratio of wild fish inputs to farmed fish outputs, with some species relying on twice the farmed biomass produced.
Industrial fishing practices in tropical and subtropical waters release high levels of methylmercury into the ocean. The majority of this mercury is found in large pelagic fish like tuna, which are then consumed by humans. This can lead to developmental delays in children and impaired cardiovascular health in adults.
A study comparing fish species in the Mississippi and Yangtze Rivers found that feeding habits and habitat preferences were key influencers of species responses to environmental conditions. The research highlights the importance of considering these factors in developing effective management strategies for large riverine ecosystems.
A team of researchers from China successfully created plant-based simulated yellow croaker meat tissues using dual-nozzle 3D printing. The study found that the texture characteristics, moisture distribution, and nutrient content of the simulated fish were close to those of real fish, with a printing accuracy of over 90%.
Researchers at Osaka Metropolitan University have developed polyethylene rafts that are about five times more durable than traditional bamboo rafts used in oyster farming. The new rafts are designed to be affordable and can withstand harsh weather conditions, reducing damage from typhoons.
A UK-based study reveals that an offshore mussel farm is reviving shellfish reefs off the English south coast, a process previously unseen in 150 years. The research found mussels deposited on the seabed create habitats for commercially important species like European lobsters and brown crabs.
The article reviews major research results on grass carp morphology, cytogenetics, molecular genetics, and germplasm resource genetic improvement. Key findings include the origin and geographical distribution of grass carp and its genetic improvement technology, including gynogenesis and hybridization techniques.
Researchers at Okinawa Institute of Science and Technology have successfully treated a newly discovered parasitic copepod species that was killing squid eggs. The eco-friendly treatment uses peracetic acid to kill the parasites in under two minutes, with zero effect on squids or their generations.
Researchers used drones to map loko iʻa at the community level, providing insights into flooding and future sea level rise impacts. Drones accurately estimated observed flooding during extreme high tide events, while LiDAR models overestimated flooding by two to five times.
This study identified 299 coral reef fish species in Huaguang Reef, with Perciformes exhibiting the highest species count. Notably, a reduction in species at the order and family levels was observed compared to historical data. The succession patterns indicate a notable impact of overfishing on coral reef fishes.
This study introduces modern innovations in Chinese aquaculture, focusing on genetic breeding, fertility biotechnology, polyculture, eco-agriculture, smart aquaculture, and eco-engineered aquaculture. The research proposes ten paradigm changes to promote sustainable aquaculture development and global food security.
Researchers have established a highly permissive cell line, GiCS, from gibel carp skin tissue, offering robust tools for early detection and study of Carassius auratus herpesvirus. A novel diagnostic method utilizing droplet digital PCR allows for sensitive detection of CaHV in infected fish on the first day post-infection.
A collaborative project between institutions across the US will provide comprehensive economic and market research to strengthen the aquaculture industry. The team aims to address regulatory complexities, input costs, and competition from imported seafood products.
A study by University of Hawaii researchers suggests that revitalizing Indigenous aquaculture systems, known as loko iʻa fishponds, can increase locally available seafood production. This revival has the potential to boost local food production and provide a sustainable solution to Hawaiʻi's seafood supply.
Researchers at NTU Singapore and Temasek Polytechnic develop a new, sustainable feed alternative for farmed Asian seabass, reducing reliance on wild-caught fishmeal. The single cell protein is cultivated from soybean processing wastewater, offering a promising solution to the aquaculture industry's environmental challenges.
Researchers discovered that Acanthophora spicifera extracts inhibit Vibrio coralliilyticus growth and improve survival rates in Ostrea edulis larvae. The study highlights the potential of natural compounds from seaweeds as an alternative to antibiotics for aquaculture disease control.
Research reveals correlation between muscle fiber diameter and mtDNA copy number across different fish types, suggesting genetic regulation role in shaping phenotypes. Decrease in muscle mtDNA copy number during winter may contribute to growth heterosis of allotriploid fish.
A new study reveals that disease-resistant fish exhibit lower viral loads and higher survival rates compared to susceptible counterparts. The results demonstrate the benefits of breeding resistant animals for sustainable food production and animal welfare.
A recent study found humpback whale entanglements in BC fish farms are extremely rare, with only eight instances over 13 years. Young whales' curiosity may be a contributing factor, according to researchers.
A recent study by the University of Cambridge found that farmed salmon production leads to a loss of essential nutrients. Consuming one-third of current food-grade wild feed fish directly could maximize nutrients from the sea. This approach could help address global nutrient deficiencies and improve both diets and ocean sustainability.
A study analyzing salmon mortality data from 2012 to 2022 found a significant increase in mass mortality events worldwide. The researchers estimate potential maximum annual losses from these events to be over 8 million fish across major salmon-producing countries.
A recent study produced new germplasm resources through distant hybridization of Koi carp and Chinese rare minnow. The researchers found that triploid hybrids showed faster growth rate and larger body size than diploid hybrids under the same conditions.
The first Neolithic farmers and shepherds in Andalusia settled permanently on the island of San Fernando, Cadiz, 6,200 years ago. They collected and consumed shellfish throughout the year, with a greater exploitation during the colder months of autumn, winter, and early spring.
Vittrup Man's genetic signature was distinct from local skeletons, suggesting a non-Scandinavian origin. His tooth enamel isotopes revealed a shift from coastal to farm food in late teens, indicating a transition to farming society in Denmark.
Researchers found that households with high seafood consumption rely on home production, bartering, and social networks to acquire seafood. Market access is key, but promoting social networks through cooperatives or fisher groups could reinforce healthy seafood diets.
A new survey from the University of East Anglia found that strong trust between managers and fishers is essential for sustainable fisheries, but has been eroded due to Brexit. The research highlights perceived incompetence, indifference to fishers' livelihoods, and inadequate consultation as key drivers of distrust.
A novel antimicrobial protein, ClyX-2, effectively cures S. iniae infections in hybrid striped bass with a 95% survival rate, outperforming traditional antibiotic treatments like carbenicillin. The discovery aims to reduce the economic loss of $150 million annually caused by streptococcosis and promote sustainable aquaculture practices.
Researchers found that zebrafish lacking usp3 exhibit enhanced hypoxic capacity due to decreased HIF-1α degradation, leading to improved tolerance. The study reveals usp3's role in modulating the activity of HIF-1α and its impact on hypoxia signaling.
The study found that black spots in salmon fillets contain eumelanin, a type of melanin present in human hair and skin, while red spots do not detectably contain melanin. The discovery provides an important step towards understanding the cause of these unsightly spots.
Researchers developed a pipeline to evaluate the risk of infections by aquatic animals. The study found no evidence of human-associated viruses in aquatic animal transcriptomes, confirming their safety as protein sources. However, proper handling and storage are crucial to controlling SARS-CoV-2 spread through cold-chain food.
The BioSPACE project aims to provide farmers, environmental agencies, and water-reliant industries with portable sensors to rapidly detect germs that threaten marine and freshwater life. The economic burden caused by waterborne diseases exceeds $3 billion in direct health care costs each year in the United States.
A recent study from the University of Copenhagen found that consumers rate vertically farmed greens similarly to organic ones. The study debunked consumer prejudices about vertically grown produce, showing that it can be just as healthy and natural.
A recent study found that half of commercial caviar products in Europe are illegal, and some don't contain any trace of sturgeon. The research analyzed DNA and isotope patterns on 149 samples of caviar and sturgeon meat, revealing widespread poaching and violation of trade laws.
A new versatile platform controls peptide hormones in fish, revealing surprising findings about conserved genetic networks and adaptable hormone regulation. This innovative method holds promise for transforming fish farming practices and exploring ways to prolong vertebrate lifespan.
Researchers have pinpointed the emergence of muddy flavors in farmed fish by measuring the concentration of geosmin and other compounds. The study highlights the importance of water quality management to prevent the production of off-flavor compounds, which can impact aquaculture industry revenue and sustainability.
Researchers developed a framework for climate-resilient fisheries, analyzing 18 diverse fisheries across ecological, social and governance dimensions. The framework identifies five archetypes of resilient fisheries with unique pathways to achieve sustainability and benefits to society.
A recent study published in Water Biology and Security challenges the hypothesis that cyanobacteria produce β-N-methylamino-L-alanine (BMAA), a non-protein amino acid linked to neurodegenerative diseases. The study found no detectable levels of BMAA in laboratory-cultured strains and natural cyanobacterial bloom samples.
A new study finds that warming temperatures may triple groundwater depletion rates in India under a business-as-usual scenario, with approximately 60% of the country's irrigated agriculture depending on the threatened groundwater. The study calls for policies to conserve groundwater and reduce energy subsidies.
Researchers are creating synthetic microbiomes to protect aquatic environments from bacteria, improving shrimp health and reducing the risk of disease in aquaculture farms. The team is collaborating with farmers in Ecuador to develop new microbial communities that will increase resistance to pathogenic bacteria.
Researchers found that replacing forage fish with formulated diets increased crude protein content in largemouth bass muscles, while also altering fiber characteristics. The study suggests that this dietary shift can improve the nutritional aspects and meat quality of largemouth bass.