Study sheds light on the impact of hydrogen sulphide in RAS

Study sheds light on the impact of hydrogen sulphide in RAS

Source: The Fish Site

10/6/2022

Study sheds light on the impact of hydrogen sulphide in RAS

Credit: Kevin Stiller, Nofima.

Salmon can cope well when exposed to low levels of hydrogen sulphide (H2S) in recirculating aquaculture systems (RAS) over time, but spikes in the levels can be very serious, according to new research.

In land-based fish farms, salmon live in fresh water until they smoltify, when they are transferred to seawater. When this seawater is recirculated it passes through a biofilter where it is purified. However, H2S gas can quickly form in the biofilter, causing the fish to die.

Continue...

News Id		Source	Stamp	country
3501	A tiny Alaska town is split over a goldmine. At stake is a way of life	theguardian	2021-06-22	US
3502	Fish captured 'smoking cigarette' on camera saved before gobbling the entire thing	dailystar	2021-09-27	UK
3503	Zombie plant a threat to fish and even swimmers	CBC News	2021-09-07	CA

140 of [140 - pages.]