Tag RAS

Ron Stotish, CEO de AquaBounty Technologies, cree que el salmón genéticamente modificado no es una amenaza para sus oponentes y que la perspectiva de AquAdvantage es buena. Con la compra de la instalación RAS de Bell Fish Co., la comercialización comenzará pronto. 

Ron Stotish, CEO of AquaBounty Technologies, believes genetically modified salmon is no threat to its opponents and the outlook for AquAdvantage is good. With its purchase of the Bell Fish Co. RAS facility, commercialization will soon commence. 

This study compared two types of indoor, shrimp culture systems: clear-water RAS and biofloc systems. Clearwater RAS had the edge in water quality, but shrimp in the biofloc treatment had a higher feed conversion ratio. 

La acuacultura basada en tierra, quizás la herramienta más importante para la mitigación del riesgo ambiental, fue el tema principal en el Foro IntraFish de Inversionistas de Productos de Mar. Una vez el foco de burlas por parte de los productores de salmón por sus altos requerimientos de capital y energía, los sistemas RAS ahora tienen un carro atestado de seguidores – de productores de salmón. 

Land-based aquaculture, perhaps the ultimate environmental risk-mitigation tool, was the talk of the town at the IntraFish Seafood Investor Forum. Once scoffed at for high capital and energy requirements, RAS now has a crowded bandwagon. 

Total RAS salmon production worldwide is less than half of 1 percent of total production. Many of the investors flocking to the sector now are new to fish farming, and confident in its potential. 

This year’s Aquaculture America in San Antonio, Texas, provided significant learning and networking opportunities. It successfully brought together 14 U.S. aquaculture organizations and more than 1,600 participants from Europe, Asia, Africa and Australia. 

Jurassic Salmon, establecida en Polonia hace apenas dos años, utiliza aguas salinas geotérmicas de 150 millones de años de antigüedad de la época del "Bajo Jura." Armada con certificaciones, la compañía está navegando una etapa complicada del crecimiento. 

Jurassic Salmon, established in Poland just two years ago, is using 150-million-year-old geothermal saline waters from the “Lower Jura” era. Armed with certifications, the company is navigating an awkward growth stage. 

The operators of Hudson Valley Fish Farm see their inland locale as a pilot to prove that land-based fish farming, located in close proximity to major metropolitan markets, can be successful. 

A number of large salmon farming companies are now investing significantly to increase land-based, water recirculating aquaculture systems (RAS) in northern Europe and North America, and there is likely a need for more trained farm personnel to run and manage these and other close-containment aquaculture facilities. 

Past and ongoing studies at the UWSP Northern Aquaculture Demonstration Facility (UWSP-NADF) have shown that walleye and hybrid walleye can be successfully raised indoors using early advanced spawning, incubation and rearing techniques. Marketing studies indicate good aquaculture potential and high demand. 

By raising shrimp in a closed building, producers can increase biosecurity, produce shrimp more consistently, grow shrimp year-round and locate production centers near markets. Chefs and consumers were very accepting of whole fresh shrimp, offered at a farmers market, that was farmed indoors in Kentucky. 

Biological filters are essential parts of recirculating aquaculture systems that transform toxic fish compounds such as ammonium and nitrite into less-harmful nitrate. The authors tested the convenience and efficiency of three methods for the initial inoculation of aerobic biofilters. 

The production period for largemouth bass in ponds hampers the economic feasibility of pond culture in the United States. A study demonstrated that bass fingerlings could be raised at high densities in a semi-closed recirculating system without serious mortality, size variability or growth retardation.