Fig. 1

Jellyfish Sample Collection Overview (A, B) Maps of the sampling locations and the dates of sampling. (C) A photograph taken from a drone deployed during the jellyfish sampling on 24.6.2020 [25], demonstrating the density of the jellyfish bloom. Individual jellyfish are marked by yellow circles. (D) Underwater bloom perspective of a jellyfish bloom. Circles indicate the different tissues sampled from the jellyfish. Photo by Hagai Nativ. (E) Collection data graph displays size, sex, health condition, and collection date for the 32 jellyfish. When jellyfish were identified as “unhealthy”, e.g. exhibited visible lesions on the bell, samples were collected from both visibly unhealthy bell tissue and healthy tissue from the same individual