Articles tagged with Aquaculture
The study found that Chilean aquacultures release large quantities of readily biodegradable compounds into rivers, altering the ecosystem and depleting oxygen levels. The waste water also contains disinfectants and antibiotics, further harming aquatic life.
A study by Mohamed Mahmoud reveals that fish farm aromas are caused by a complex mixture of substances, including geosmin and manure smell. The researchers identified ten other substances with musty-earthy smells, which run off from land into the water and affect the fish.
Researchers found that Senegalese sole cope with stress by their personality and can identify fish at a young age to improve reproduction in captivity. The study used operational behavioural screening tests to measure stress response and identified proactive and curious fish as more likely to reproduce.
Research by University of Exeter scientists reveals that climate change disrupts fish sensory systems, including smell, hearing, and vision. Fish may swim towards predator smells or ignore sounds that deter them from risky habitats.
A consortium of researchers from the University of Southampton and other institutions is leading a project to calculate the role of physical pond conditions in controlling two devastating pathogens affecting Asian aquaculture. The team aims to develop new guidelines for disease management and novel intervention methods.
Brown University students have developed an innovative sustainable aquaculture idea called Kulisha, which produces fish feed made from black soldier fly larvae. The team plans to build a business to raise and process the larvae, reducing the industry's ecological impact.
In 2015, Virginia shellfish farmers sold $48.3 million in clams and oysters, with hard clam sales leading the nation. The state's industry is expected to increase by 14% for planted oysters in 2016.
A team of Stirling academics investigated the effects of fish oil supplements on muscle growth, revealing no significant difference in healthy, resistance-trained young men. Muscle biopsies showed no increased uptake of omega-3 fats by muscle cells.
A new analysis from the Johns Hopkins Bloomberg School of Public Health suggests that the increasing use of plant-based feeds in farmed fish may change the levels of healthy fatty acids in these fish. This shift has large implications for dietary recommendations, as farmed fish are a significant source of omega-3 fatty acids.
Researchers have found that cactus mucilage can effectively clean contaminated water for farmed fish, drinking water, and other uses. The mucilage attracts sediments, bacteria, and contaminants, forming a large mass or 'floc' that precipitates rapidly, making it an attractive alternative to current methods.
The €7 million Tools for Assessment and Planning of Aquaculture Sustainability (TAPAS) project will create cost-efficient management tools to investigate sustainability in European aquaculture. The study aims to enhance environment sustainability, aquatic food security, and support transparent and efficient licensing.
The study highlights the main pathways of alien species introduction in European lakes and rivers, including escape from aquaculture facilities and pet/aquarium trade releases. It emphasizes the need for stricter regulation and control measures to mitigate these threats and achieve the Aichi Biodiversity Target 9.
NOAA has awarded grants to three companies to develop ocean acidification-resistant abalone strains, genetics-based selective breeding protocols for mussels, and sustainable multi-species marine algal aquaculture in Maine. These projects aim to tackle significant obstacles in US aquaculture and explore novel solutions.
A £4 million project is increasing production in Scotland's salmon farming industry by utilizing wrasse as a cleaner fish to reduce sea lice challenges. The research aims to improve the quality and delousing efficacy of farmed wrasse, advancing hatchery technologies and optimising welfare.
Researchers at Arizona State University found traces of 5 antibiotics in shrimp, salmon, and other seafood samples from 11 countries. The study highlights the need for regulation on antibiotic use in aquaculture to prevent resistance development.
Using genetic barcoding, researchers found large variations in foraminiferal species collected near salmon farms compared to remote sites. The study established a correlation between species richness and distance from the cages, indicating diminishing species diversity on sites affected by farming.
Research argues that aquaculture certification has significant limitations due to low market demand and focus on farm-level impacts. The study suggests integrating multiple governance approaches to promote sustainable aquaculture production.
A CSIC study reveals that Japan, China, and South Korea account for 84% of macroalgae patents, highlighting the importance of scientific investment in biotechnology development. The study also suggests that under-invested Asian nations are missing out on market opportunities due to low research efforts.
A new assay has been developed to rapidly detect the toxin secreted by Vibrio tubiashii, a bacterial disease affecting the oyster industry. The test is expected to provide early warning systems for oyster growers, allowing them to take quick action and prevent significant losses.
A University of Alberta research team found that adjusting sea lice treatments improved wild pink salmon health and reduced mortality rates. By shifting treatment schedules to the fall and winter, they reduced sea lice in coastal waters, allowing more juvenile pink salmon to survive migration.
Researchers found that reducing fishmeal in farmed fish diets leads to lower health and growth. The cobia fed with reduced fishmeal had higher levels of metabolites linked to physical stress and lower levels of primary energy sources. In contrast, the diet with full fishmeal showed more normal growth and energy production.
A new report by the University of Victoria finds that most eco-labels for farmed marine fish offer less than a 10% improvement in environmental performance compared to conventional practices. The study evaluates 20 eco-labels, ranking them based on numerical scores derived from a well-established quantitative methodology.
A new study reveals that concentrated fish farm waste plumes do not consistently dilute immediately in open water. The research found that tides, currents, and the earth's rotation can dramatically affect how far waste plumes travel from their source.
At Newcastle University, a team led by Professor Selina Stead is investigating the potential of sea cucumbers as natural cleaners on fish farms, reducing waste's impact on ocean floors. The project aims to develop organic farming methods for both sea cucumber food and eco-friendly aquaculture.
USDA researchers are developing new fish feeds with lower levels of fishmeal and fish oil, replacing traditional sources with concentrated plant proteins. The alternative diets show promise in supporting the growing demand for fish as a lean protein source, while promoting sustainability in aquaculture production.
USDA-funded scientists in Hawaii have developed new fish feeds using discarded fish parts that can attract shrimp and boost their growth, similar to studies on Alaskan pollock and cod. Researchers are now refining these practical feeds for nutritional balance, cost-effectiveness, and environmental safety.
A Spanish company, Isidro De La Cal-Fresco, has developed a breeding method for the blackspot seabream using EUREKA funding. They have created a commercial diet, Besugo Power, which helps fish grow quicker and healthier, making it possible to produce the fish at a competitive price.
To address global food security challenges, researchers recommend embracing agricultural biotechnology, aquaculture, and crop breeding to improve yields in dry areas. They also suggest using nitrogen more efficiently to reduce water pollution and greenhouse gas emissions.
Researchers at Florida Atlantic University's Harbor Branch Oceanographic Institute develop novel seeding techniques to produce beaded and non-beaded cultured pearls from the queen conch. The breakthrough enables more efficient and environmentally sustainable culturing of this commercially threatened species.
A T-STAR grant has funded genetic studies on Pacific white shrimp, papaya cultivars and endangered Cycas micronesica cycad. The research aims to improve disease tolerance and pollination processes, supporting aquaculture and conservation efforts.
Recent research advancements reveal new techniques for studying leaf development, while also exploring the potential benefits of aquaculture when practiced sustainably. Large wetlands provide vital ecosystem services, including carbon cycling and freshwater supply, making them crucial for conservation planning.
The UM Rosenstiel School students' innovative sustainable aquaculture concept, focusing on producing and selling valuable bait fish, has been recognized as a top prize winner. The students took home $8,000 for their project, which aims to promote environmentally friendly fishing practices.
New research uncovers factors triggering sex reversal in black sea bass, a key challenge for aquaculture. By studying hormones and enzymes, scientists aim to control sex change and improve breeding outcomes.
The study highlights substantial risks of farm salmon escapes into the North Atlantic and other regions, threatening native fish populations. Escapes lead to interbreeding, loss of fitness, and genetic diversity, as well as parasite transmission to wild stocks.
Researchers in Hawaii have developed a way to grow the complete life cycle of long ogo, an edible red seaweed, without needing to harvest starter plants from the ocean. The sustainable system for growing fresh long ogo is unique in the United States and provides additional income for 40 farmers.
The Florida Sea Grant is supporting research to develop more efficient methods for raising marine ornamental fish, such as angelfish and anemonefish. This focus on sustainable aquaculture aims to reduce the industry's impact on coral reefs and promote environmentally friendly practices.
A team of researchers, government agencies, and private companies test a sustainable, environmentally friendly open ocean aquaculture industry in the Gulf of Mexico. The project utilizes innovative technologies, such as a single-point mooring system and automated innovations like a remote camera and satellite tracking system.
A study by Purdue University estimates that farmers can cut excess nitrogen flow by 20-25% using various methods, such as improved fertilizer management and wetland reconstruction. This reduction is crucial to eliminate the hypoxic zone in the Gulf of Mexico, which affects marine life and water quality.
The institution has trained nearly 300 fishermen and helped them establish businesses in hard clam aquaculture. Graduates receive state-owned land leases, equipment, and seed to support their operations.
The Florida Marine Aquaculture Industry Development (MAID) Workshop aims to prioritize species for marine food fish aquaculture in Florida, focusing on production systems, markets, and regulations. The event also explores entrepreneurial and research opportunities for the industry.