Recirculating aquaculture systems (RASs) are evolving towards even higher levels of water recycling and water efficiency. This was the message presented by Dr. Dallas Weaver from Scientific Hatcheries, Huntington Beach, California, at the Recirculating Aquaculture Conference held last August in Roanoke, Virginia. Weaver and his colleagues Mark Francis and Jimmy Williamson from Aquaneering, Inc. San Diego, California; and Conal True from Universitad Autónomia de Baja California, Ensenada, Mexico, have designed, built, tested and installed a denitrification system geared to service multiple RAS systems while maintaining biosecurity between them.
The snapping shrimp, aka pistol shrimp, can literally shoot its prey. Using a plunger on its enormous claw, it can shoot water at 70mph/115kpm. This water velocity creates a vacuum pressure pocket that takes gas out of solution, and expands it rapidly. The resulting explosion of gas bubble generates light, sound (210 dB), and shockwaves that can kill or stun its prey.
With many farms moving the vital components of their production indoors the cost of power is becoming a major issue. Situated 250km southwest of Sydney near the township of Tarago, the French company Veolia is using methane from household garbage to generate enough power for 12,000 homes, plus run a demonstration barramundi growout and aquaponics program at their Woodlawn Eco-Project.
The Russian city of Kostroma is located at the confluence of the Volga and Kostroma Rivers, about 700km northeast of Moscow. It has a population of about 270,000.
The provision of recirculation equipment, design and advice for hatchery developments in relation to shrimp farming research, commercial tilapia production and eel breeding innovations are already on the project CV of LandIng Aquaculture, a specialist recirculating aquaculture systems (RAS) enterprise which recently completed its first 18 months in business.
Flood-damaged West Virginia hatchery expects full recovery in 2019West Virginia’s White Sulphur Springs National Fish Hatchery expects to…
Fish InternationalSun Feb 25, 2018
China Fish 2018Mon Feb 26, 2018
19th world congress on analytical & bioanalytical techniquesWed Sep 19, 2018 @11:00AM - 05:00PM