Aquaculture
Articles tagged with Aquaculture
A new method could help Washington shellfish farmers control a pesky shrimp
In an experiment, yellow trout grew larger than the wild strain
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.
Seaweed integration boosts efficiency and cuts waste in aquaculture, study finds
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 the Universitat Jaume I develops an experimental modular robotic fish prototype for aquaculture use that reduces fish stress
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.
Aquaculture is shifting toward less sustainable species: new UBC study
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.
Benizake salmon farming in Fukushima moves toward full-scale commercialization in Namie Town — Construction of a new aquaculture facility begins
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.
Scalable aquaculture systems can improve survival, reduce labor, and enhance animal welfare
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.
USF study: Gag grouper are overfished in the Gulf; this new tool could help
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.
Oman advances toward scalable seaweed farming with pilot project
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.
New study warns emerging pollutants in livestock and aquaculture waste may threaten ecosystems and public health
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.
Releasing pollack at depth could benefit their long-term survival, study suggests
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.
Land-based aquacultural using “the new type of water” featured in the English listening section of the Common Test for university admissions
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.
Opioid system may flag poor acceptance of plant-based feed in farmed trout
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.
Neural progesterone receptors link ovulation and sexual receptivity in medaka
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 in Fukushima moves toward full-scale commercialization in Namie Town
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.
£1.4 million grant for groundbreaking University of Stirling salmon health study
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.
Gene delivery via nanotubes changes fish sex to boost aquaculture yield
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.
Enantioselective maternal transfer of pesticide metabolite and its thyroid effects
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.
Kelp farming is expensive, but a new resource points to lower costs
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.
Climate resilience found in traditional Hawaiian fishponds
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.
FAU’s Queen Conch Lab receives prestigious international award
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.
Farmed totoaba could curb poaching
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 by CIRTESU-UJI and tested in PortCastelló receives the national award for best work in marine automation
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.
Community management effectively protects millions of hectares of Amazonian forest
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.
eDNA can help detect kelp-derived carbon on ocean floor
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.
Traditional herb boosts fish health and immunity, study reveals
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.
Artificial intelligence assessment indicates stress levels in farmed Amazonian fish
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.
Global review identifies opportunities to improve monitoring of juvenile fish habitats
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.
Sustainable aquaculture as a contribution to food security? Leopoldina webinar on the conditions in Germany and Brazil
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.
New mega RNA virus may hold the key to mass oyster die-offs
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.
Healthy food systems: Microbial map reveals countless hidden connections between our food, health, and planet
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.
Frontiers Forum Deep Dive series: Microbial map reveals countless hidden connections between our food, health, and planet
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.
So what do the world’s coastlines look like in 2025?
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.
A globally distributed cyanobacterial nitroreductase capable of conferring biodegradation of chloramphenicol
Cyanobacteria's microalgae-based technologies effectively remove antibiotics from wastewater through mechanisms attributed to the identified nitroreductase enzyme. Engineered bacteria expressing this enzyme degrade chloramphenicol with high efficiency, offering a sustainable biocatalyst for antibiotic pollution control.
Growing a better future – Decades of impact from CGIAR
Between 2022 and 2024, CGIAR delivered innovations to over 20 million farmers across 62 countries, including climate-resilient crop varieties and tools for women's empowerment. The report highlights a cumulative impact of $1.34 trillion in economic benefits from crop technologies developed by CGIAR.
Carp in recreational fisheries show high resilience to stress of capture
A new study found that domesticated carp have lower chronic stress levels than their wild counterparts, despite regular angling capture. The researchers compared scale cortisol data from domesticated and wild carp and found that the former had significantly lower levels of chronic stress.
Experts say seafood deregulation could impact sustainability and supply
A new executive order aims to deregulate the US seafood sector, but experts argue it will weaken scientific authority and environmental protections. The policy threatens the sustainability of wild fisheries and aquaculture development, which is crucial for food security.
SEB Conference 2025
The SEB Conference 2025 will feature over 500 talks on latest advances in experimental research across animal, plant and cell biology. The event highlights groundbreaking research in biomechanics, wildlife conservation, human disease and bio-inspired robotics.
FAU Harbor Branch receives grant from Chef José Andrés’ Longer Tables Fund for queen conch lab aquaculture expansion
The Queen Conch Lab at FAU Harbor Branch will establish a community-based queen conch farm in every Caribbean country to restore healthy populations and improve sustainable fishing methods. The project aims to grow up to 2,000 queen conch juveniles per year for conservation and restoration.
Nearly 40% of grilled eel products in Japanese retail market identified as American eel
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.
Low pH aggravates toxicity of polystyrene microplastics in crab Eriocheir sinensis
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.
Discovery offers new insights into skin healing in salmon
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.
Natural algal communities can inhibit aquaculture pathogens
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.
First ever global map of fishmeal and fish oil factories exposes industry's footprint
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.
Amazon research tackles £50 million parasite devastating fish farmers around the world
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.
Malaysia’s wild fish catch is stagnating while aquaculture surges, says new report
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.
One-third of Australia’s coastal terrestrial aquaculture at risk from sea level rise by 2100
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.
UMaine research examines best methods for growing Atlantic sea scallops
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.
New sea grant report helps great lakes fish farmers navigate aquaculture regulations
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.
Biobreeding technology enables rapid development of golden Grass Carp germplasm
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.
Artisanal fishers are almost as accurate as satellites in producing environmental data
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.
AMS Science Preview: Data deserts, energy costs, malaria prediction
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.
Tracking algae species interactions to help predict harmful algae blooms
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.
The potential of artificial freshwater habitats in supporting ecology of native fishes
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.
Sungkyunkwan University study reveals the hidden genomic evolution of brown algae
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.
Research highlights the pressures human activities place on tropical marine ecosystems
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.
Revealing the hidden costs of what we eat
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.
Salmon frequently mislabeled in Seattle grocery stores and sushi restaurants
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.
Unique biodiversity patterns in high-altitude rivers on the Qinghai-Tibetan plateau revealed
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.