It has been known for some time that larval lobsters of a number of species hitch rides on jellyfish, whilst eating them, wrapping the stinging nematocysts in special protective faecal packages. A recent study, using video cameras in relatively deep Norwegian waters, has shown that defrosted helmet jellyfish carcasses are very attractive to adult Norway lobster (Nephrops norvegicus) who drive away other scavengers such as hagfish), managing to eat around half of the material themselves (https://www.eveningexpress.co.uk/news/scotland/deep-water-experiment-reveals-lobsters-appetite-for-jellyfish/). The Norway lobster (also known as Dublin Bay prawns and langoustines) is an important species for fisheries in Scotland and Dr Andrew Sweetman of Heriot-Watt University, who carried out the study, believes that the importance of jellyfish in the diets of these crustacea has been little appreciated (a lobster could get enough food from a single carcass to survive for 3 months).
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