Cutting the food chain? The controversial plan to turn zooplankton into fish oil 
UK Source: theguardian 1/19/2022
Cutting the food chain? The controversial plan to turn zooplankton into fish oil
Credit: Portland Press Herald/Getty
A few times a day, off the Faroe Islands’ coast, the crew of the Jákup Sverri marine survey ship test the water, measuring its salinity, temperature and oxygen at different sea depths. But they also look for something else.

Durita Sørensen, a laboratory technician, holds up the contents of a special net to demonstrate. If the water is greenish, it contains a lot of phytoplankton, the plants at the base of the oceanic food chain. But if it is red or brown, as in Sørensen’s net, the haul is one rung higher up the ladder: zooplankton. “This is calanus, or Calanus finmarchicus,” she says, indicating the tiny red creatures. “This is what they are interested in making fish oil [from] as a food supplement for humans.”
 

Zooplankton is a crucial part of the Atlantic Ocean ecosystem. And calanus – known as Reyðæti in Faroese or “red plankton” – is one of the most important and populous varieties. In 2020, the Faroese fisheries ministry gave five companies the right to fish for up to 25,000 tonnes of it each.

There is no factory yet on the Faroe Islands for processing the tiny red creatures into fish oil, but entrepreneurs are hoping it will soon become big business, supplying not only the apparently insatiable demand for omega-3 health supplements across the western world, but potentially for use in the even vaster fish-farming industry.

 
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