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More than one type of salmon lice

New results from the Institute of Marine Research show that there are two sub-species of salmon lice. 

The findings can be important in the development of new lice treatments for salmon as it seems that they do not necessarily react in the same way to the medications.

- Our experiments have shown that salmon lice from the Atlantic and Pacific are so genetically similar that they belong to the same species. However, the differences between them are big enough for them to be classified as two separate sub-species, says Rasmus Skern-Mauritzen, a scientist at the Institute of Marine Research.

Scientists have long known that salmon lice in the Pacific and Atlantic are different, both biologically and genetically.

- This has fuelled a debate about whether or not all salmon lice belong to the same species, which was why we decided to further investigate the matter, says Skern-Mauritzen.


To read more, please visit the Institute of Marine Research.

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