Seaweed polyculture: Potential bioremediation of hatchery effluents
Authors are developing a freshwater hatchery effluent bioremediation system that uses seaweed polyculture to decrease discharge levels and reduce remediation costs.
Probiotics’ enhancement of soil, water quality examined
Probiotics used as bottom soil and water quality enhancers are primarily cultures of living bacteria, enzyme preparations, or the two combined.
Floating skimmers improve water quality in tanks, ponds
In aquaculture, foam fractionation involves the use of a protein skimmer to remove dissolved organic compounds from aquaculture systems.
Solar energy technology for aquaculture
Researchers are evaluating whether off-the-shelf flat-plate solar collectors can maintain stable recirculating aquaculture system temperatures.
No-maintenance filtration for hatcheries
A properly designed fluidized-bed filtration system increases hatchery output by providing a chemically stable, high-quality water supply.
Alternatives for reef fishing
Because of the high prices paid for live reef fish, overfishing of species such as groupers and Napoleon wrasse is a common problem throughout their range.
Secchi disk visibility: Correct measurement, interpretation
It would be difficult to find a pond aquaculture worker who has not measured Secchi disk visibility or at least seen someone measure it.
Protein content of fish feed affects water quality
In pond culture, the application of formulated feed – some with very high protein content of 30-60 percent – constitutes the main nutrient input.
Coagulation and flocculation aids remove suspended solids, phosphorus from RAS effluents
Phosphorus is one of the most scrutinized nutrients discharged by aquaculture systems, due to its potential eutrifying impact on receiving bodies of water.
White shrimp production tested during autumn-winter season in Mexico
Since 1985, white shrimp farming has developed significantly in northwestern Mexico along the coastal lagoons of the states of Nayarit, Sonora, and Sinaloa.
Zeolite ineffective as pond treatment
Zeolite is used in industry for water softening and as media for molecular sieves but has no real benefit for aquaculture in ammonia removal.
Cockle project provides aquaculture option for British Columbia first nations
Cockles are a common, though not overly abundant, bivalve in British Columbia waters, where they are normally found in low intertidal and subtidal regions.
Small-scale freshwater prawn culture boosts Bangladesh economy, household incomes
Bangladesh may be a small player in terms of global shrimp production, but producing and exporting shrimp provides an important source of foreign exchange.
Tilapia culture systems in Bangladesh
Tilapia culture systems in Bangladesh play a “silent” role in meeting poor peoples’ needs and, increasingly, of a growing demand in formal markets.
Robotic vehicle applications in aquaculture
Small autonomous vehicles provide an environmentally friendly approach to labor-intensive methods used to maintain production and water quality.
U.S. study finds turbidity useful In TSS, ISS estimates
Total suspended solids concentration is time-consuming to measure, but turbidity has been used to estimate TSS concentrations in some types of effluents.