In the Press: lice larvae love surface waters
Another one of our previous Masters’ students Aylah Szetey has had some press on the research she did as part of her Masters. Aylah investigated how light influences the distribution of the two planktonic larval stages of salmon lice within the water column. Surprisingly, she found that the two larval stages had different preferences, with higher light intensity increasing the proportion of nauplii aggregating at the surface. In contrast, copepodids swam towards the surface regardless of the presence or absence of light. Her results have strong management implications for salmon lice dispersal models, and she recommends that stage-specific behaviours towards light should be incorporated into current dispersal models to improve their outputs.