Intelligence
New water quality monitoring system could help grow aquaculture in Australia
CSIRO’s AquaWatch technology "significantly" helped water quality monitoring needed to support aquaculture growth in the Spencer Gulf region.
Health & Welfare
The impact of water quality on health and performance of farmed fish and shrimp, Part 1: dissolved oxygen and carbon dioxide
Adequate water quality for fish and shrimp farming is essential for controlling feeding rates, phytoplankton density and several other key parameters.
Innovation & Investment
Zhongkai University Researchers develop UAV-mounted water quality sampling and multi-parameter monitoring system
An experimental airborne system is effective at water quality sampling and monitoring, with superior mobility, safety and lower operating costs.
Health & Welfare
Effects of probiotics on ammonia degradation in vitro and in Pacific white shrimp ponds
The two probiotics studied degraded ammonia in vitro and in ponds. A magnetic field improved germination and proliferation of Bacillus spores in vitro.
Innovation & Investment
Water quality monitors aim to revive centuries-old Hawaiian fishpond
Startup's water quality monitors were deployed in a centuries-old fishpond in Hawaii that had been devoid of aquatic life for 50 years.
Intelligence
Researchers uncover how water purification affects water quality in recirculating aquaculture systems
A new study from Skoltech examined how water purification affects water quality in recirculating aquaculture systems.
Intelligence
How automatic shrimp feeders impact water and soil quality of grow-out ponds in Ecuador
Authors attempt to environmentally assess feeding areas of large shrimp ponds with acoustic feeders, a key step to improving production efficiency.
Innovation & Investment
Aqua Insights excerpt: Smart water quality sensors for aquaculture
An excerpt from the April 2022 issue of Aqua Insights looks into the possibilities that Smart water quality sensors provide aquaculture.
Aquafeeds
Dietary supplementation of freeze- and oven-dried biofloc in red tilapia hybrid fingerlings
Inclusion of freeze-dried biofloc at a low rate can help support efficient growth performance while oven-dried biofloc helps manage water quality.
Responsibility
Oyster farm water quality and hydrodynamics in Chesapeake Bay
Study looks at how water quality and hydrodynamics vary among Chesapeake Bay oyster farms, as well as the differences inside and outside grow-out areas.
Responsibility
Channel catfish production in biofloc technology systems
Study evaluates production characteristics, minerals, off-flavors and water quality dynamics on channel catfish reared in used and in new biofloc water.
Responsibility
Microbial activity assessment based on hydrogen peroxide decomposition rates
Fast, easy, reliable method offers great potential for all aquaculture systems There is a widespread need for cultivation-free methods to quantify the viability of microbial communities in aquatic environments. This demand also exists within the aquaculture industry, where rapid and reliable methods for measuring bacterial activity and bioavailable organic matter in water are increasingly required.
Responsibility
Constantly changing pH unavoidable, completely normal
Prof. Claude Boyd discusses the importance of pH for farmed fish and shellfish, the normal and natural fluctuations and how aquaculture systems can manage it.
Responsibility
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.
Responsibility
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.
Intelligence
In a land of lakes, a rally cry for recirculating aquaculture
Wisconsin State Rep. Mary Felzkowski and others are championing aquaculture to grow food production in the state, with a keen interest in recirculating aquaculture systems (RAS).