Research on the great scallop in Norway has focused on improving the rearing environment and enhancing larval and spat yield.
Determining changes in the genetic diversity of selected hatchery stocks provides a means to monitor inbreeding, control loss of genetic diversity and achieve sustainable levels of genetic gain.
The Hubbs-SeaWorld Research Institute’s Mission Bay Laboratory has had limited success hatching and rearing eggs from captive wild yellowtail jack broodstock, but its program is improving.
Although the hatchery rearing of bivalves currently relies heavily on the mass production of microalgae, new feed alternatives are being developed.
Pond water level management can reduce overflow volume and ground water use. Implementing BMPs reduces pollutant discharge.
Studies indicate that feeding channel catfish once daily to satiation from advanced fingerlings to market size provided maximum growth and production.
In general, lower-intensity pond and cage farming tends to discharge higher overall pollution loads in farm effluents than closed aquaculture systems.
In studies, high dissolved carbon dioxide concentrations in culture tank water induced rainbow trout to swim to an area with lower concentrations.
A temperature-control system with a central chiller was found to enhance chilling and research capacity over a system with multiple unit chillers because replicating experiments in a single process control system minimized variations in the temperatures and chilling rates in
In studies that compared performance of channel catfish hatcheries, eggs hatched six hours sooner with lower-oxygen incubation, but experienced lower survival.