Settler evaluation: Radial flow vs tangential flow
In a study, a radial-flow settler provided approximately twice the TSS removal efficiency of a comparable swirl separator.
Performance curves can standardize evaluations of biofilter performance
A simple evaluation process can characterize commercial biofilter performance as a function of flow rate and ammonia-nitrogen concentration.
Microbial mats remove nitrogen, phosphorus from aquaculture effluents
Research has shown that microbial mats are effective at removing nitrogen and phosphorus from aquaculture effluents.
Greening the blue revolution
The worldwide adoption of ecologically, socially and economically sound systems based on a series of principles of organic agriculture is exemplary if unrealistic.
Beyond HACCP: Total procedures manuals, Part 2
Detailing the HACCP procedures and specifications for every stage of production and processing in a total procedures manual is a hallmark of quality.
Beyond HACCP: Total procedures manuals, Part 1
Seafood processors must increasingly codify all procedures, not just those related to food safety and hazard analysis critical control point (HACCP).
Beyond HACCP: Total procedures manuals, Part 3
Processors maintain facility and product security via HACCP procedures and supporting documentation that control physical security, employees and visitors.
Microbial testing identifies potential toxicity in polymer liners, biofilter materials
Although widely used in aquaculture applications, some synthetic polymer liners can release toxic substances into culture water and affect animal health.
Aquaculture diversification in Chile: Potential of giant barnacles
Current work to support culture of giant barnacles illustrates the process of developing production technologies and their transference within Chile.
Copper treatments control phytoplankton
Copper sulfate is widely used as an algicide in ponds and other aquatic systems. Although copper quickly disappears from pond water, cupric ions can be harmful to aquatic animals.
Protein, lipid recovery from fish-processing byproducts
West Virginia University developed a lipid and protein recovery process from byproducts that reduces disposal concerns in the process of fish processing.
LC50 calculations help predict toxicity
LC50 – the concentration of a substance that is lethal to 50 percent of the organisms exposed to it in a toxicity test – is a useful tool because it can predict the effects of a potential toxin in aquaculture systems.
Microbead filters: cost-effective, scalable filtration
Microbead filters are an effective filtration solution that can be scaled to large production systems at a lower cost of operation than fluidized-sand bed filters.
Selective breeding improves Indian carp culture
Genetic improvement through selective breeding is an important technology for output and for resource efficiency in Indian carp production.
Partial-reuse systems: benefits for cold-water, marine aquaculture
As confirmed in a U.S. study, partial-reuse systems are effective alternatives to traditional, serial-reuse raceway systems for salmonid culture.
Drainage ditches treat initial effluents from catfish ponds
Drainage ditches on catfish farms function as settling basins that remove sedimentation and reduce nutrient loads from effluents before they enter receiving waters.