Tag water quality

The two probiotics studied degraded ammonia in vitro and in ponds. A magnetic field improved germination and proliferation of Bacillus spores in vitro. 

Startup's water quality monitors were deployed in a centuries-old fishpond in Hawaii that had been devoid of aquatic life for 50 years. 

A new study from Skoltech examined how water purification affects water quality in recirculating aquaculture systems. 

Authors attempt to environmentally assess feeding areas of large shrimp ponds with acoustic feeders, a key step to improving production efficiency. 

An excerpt from the April 2022 issue of Aqua Insights looks into the possibilities that Smart water quality sensors provide aquaculture. 

Inclusion of freeze-dried biofloc at a low rate can help support efficient growth performance while oven-dried biofloc helps manage water quality. 

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. 

Study evaluates production characteristics, minerals, off-flavors and water quality dynamics on channel catfish reared in used and in new biofloc water.   

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. 

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. 

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. 

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. 

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). 

Phytoplankton has several important effects on water quality, including removing ammonia nitrogen from water and absorbing nutrients from the water for its growth. Abundance of blue-green algae tends to increase as nutrient inputs in aquafeeds or fertilizers increase. 

Shrimp nursery systems offer the shrimp industry an important opportunity to increase profits, by helping produce strong, healthy and uniform juveniles with significant potential for compensatory growth after their transfer for final pond grow-out. Biofloc technology and water quality are critical components of shrimp nursery systems.