Why water mixing and movement is key in aquaculture systems
Water mixing and movement distributes dissolved oxygen, fertilizers, liming and other products, as well as destratifies the water column in aquaculture systems.
Can ranching ‘zombie urchins’ boost uni, save kelp forests?
With Norwegian knowledge and a partnership with Mitsubishi, Urchinomics aims to turn worthless empty urchins into valuable seafood while restoring kelp forests and creating jobs.
What is biodiversity and its relevance to aquaculture certification?
Aquaculture certification programs reduce the environmental impacts of aquaculture and avoid negative impacts on biodiversity, but no single indicator of biodiversity can be used as a standard in aquaculture certification.
Stocking rate effects on growing juvenile sunshine bass
A dose-response study was conducted in an outdoor biofloc system to begin quantifying the stocking rate production function for sunshine bass advanced fingerlings.
Maine oyster farmer stares down climate change, learns to adapt
Bill Mook’s oyster farm is adapting to more frequent and intense rains, more acidic and warming seawater and other challenges that climate change brings.
Factors affecting efficiency of commercial fertilizers in aquaculture
Intensification of pond aquaculture involves the use of commercial fertilizers such as urea and triple superphosphate to stimulate phytoplankton blooms. There is no objective way of determining the ideal fertilization rate for an individual pond.
Properties of common commercial fertilizers in aquaculture
Commercial nitrogen and phosphorus fertilizers are widely used in aquaculture production systems to stimulate phytoplankton growth and the food web that provides natural food organisms beneficial to stocked fish fry and shrimp postlarvae.
Retrofitting shrimp farms to recirculating systems
Several large shrimp farms in Latin America, originally built to operate using significant, flow-through water exchange with the surrounding environment, have been retrofitted to a recirculating operation mode. This modification provides numerous benefits, including improved biosecurity.
Understanding water quality variables for aquaculture
Confusion can result because of differences in units (dimensions) used to report water quality variables, which can lead to faulty assessments. Professor Claude Boyd discusses issues related to units of measure for some common water quality values in aquaculture.
Reutilizando Maine: Instalaciones pesqueras envejeciendo encuentran nueva vida con la acuacultura
Algunos pescadores de langosta de Maine están recurriendo a la acuicultura en un intento por diversificar y dar a las libras de langosta una segunda oportunidad de producir mariscos locales.
Sea cucumber project redefining traditional farming in Madagascar
Farming sea cucumbers – known as sea slugs in China – is changing people’s lives, giving rural workers in Madagascar a potential pathway out of poverty.
Rating smallholder shrimp farmers’ sustainability challenging, controversial
As aquaculture grows as an economic engine, consumers, seafood buyers, NGOs and governments are pushing to assess and rate farms’ environmental performance. Establishing clear measurements remains a challenge.
ILO: Seeking Decent Work for Thailand’s fishing and seafood industry
The new Global Estimates of Modern Slavery report released by the International Labour Organization indicates that 24.9 million workers at any given time in 2016 were in modern slavery. One in 10 of those workers around the world was working in the fishing and agriculture industries.
Improving shrimp farm design in flood-prone areas of India
Shrimp farm design improvements like reservoirs and recirculation canals can help small-scale shrimp farmers protect their infrastructure and improve production in flood-prone areas of India and elsewhere.
Good neighbors: Group certification approach pins hopes on collaboration
Group certification can streamline the auditing process, saving farmers time and money while improving economic conditions for all participants. It also has the potential to cause rifts among competitors.
Electrical conductivity of water, part 2
The electrical conductivity of water is frequently measured in aquaculture systems and taken as an indicator of the degree of mineralization (total ion concentration) of water.