Water quality

Mark Bowkett, CEO of Aquamonitrix, explains the dangers of elevated nitrogen levels in RAS facilities and why he believes that the company’s novel sensor can help to not only prevent mass mortalities, but also help to improve feed conversion ratios and growth …

Results from an integrated multi-trophic aquaculture (IMTA) project with sea cucumbers and marine finfish show that the system is feasible, but practitioners need to refine their designs to ensure the sea cucumbers thrive.

Results of a new study by researchers at Nofima suggest that peracetic acid can safely be used as a water disinfectant in recirculating aquaculture systems (RAS) that contain salmon parr.

Alaa and Medhat Elokda are producing tilapia and mullet in a high-density RAS facility which they have designed and built themselves.

Perhaps one of the least aquatic forms of aquaculture involves the farming of crocodiles, alligators and caimans. These animals are referred to as semi-aquatic, and their husbandry is in some ways more similar to livestock production than to fish or shellfish …

Adding microalgae T pseudonana (Thalassiosira pseudonana) to culture water can improve overall water quality, suppress vibrio levels and boost growth rates for intensively farmed whiteleg shrimp.

Some salmon producers may keep their cages fully submerged to keep sea lice at bay, but results from a recent trial suggest that while this reduces lice infestations, it is detrimental to salmon welfare and production goals.

Why optimal ionic composition and ratios in low salinity water and diet formulation is vital for the normal physiological functions of Penaeid shrimp.

Having been inspired to start mussel farming by studies showing many potential benefits of bivalve aquaculture, fledgling farmer Jude Brown has been heartened by the results of her own research.

Indonesian shrimp farmers now have access to – and would be wise to implement – a new range of easy, fast and precise water quality management systems.

IntegraSEE’s CEO, Lawrence Taylor, explains how monitoring the behaviour of a handful of mussels in a MarineCanary unit can alert aquaculture operators to water quality issues, including pollution, pathogens and temperature anomalies.

Lowering water levels and poor communications from hydro-electric companies are combining to put pressure on tilapia farmers in the west of São Paulo state, Brazil.