Infected fish can't be sold due to the lesions the parasites cause. But the health of the fish is also at risk. In extreme cases, an infestation can cause mass mortality. Currently the most common ...

live in the same cages as salmon where they attack and eat parasitic sea lice. Only small numbers of farmed wrasse have so far been deployed in salmon farms, with the majority coming from the wild.

Sea lice attracted by chemical signals from salmon, study finds. New international research led by Norway's Nofima sheds ...

Many copepod species have independently adapted to a parasitic way of life using a wide range of animals as hosts. How patterns of new host use develop in copepods is largely unknown. We are studying ...

Breathe easy, though—in reality, Cymothoa exigua, the parasitic isopod in question, only targets fish. Commonly known as the tongue-eating louse, it measures only about 0.3-1.1 inches in length ...

New research conducted by the Norwegian Institute of Food, Fisheries and Aquaculture Research (Nofima) has enhanced the ...

"Sea lice are normally kept in check with the use of a drug called SLIC," it reads. "This report sets out the evidence that the parasite has become resistant to this drug; and that regulators and ...

Fish farms will have to report weekly levels of sea lice under new Scottish government proposals. There has been growing concern about the impact the parasitic lice are having on wild fish stocks.

The system is also designed to look out for a perennially problematic visitor to fish farms - the parasitic sea louse. Lice attach to salmon and eat them, causing damage that can be fatal.

There are also long-standing concerns around parasitic sea lice and the use of chemical treatments in open waters. In 2018, Holyrood's environment committee concluded that Scotland's marine ...