Samples were pooled (3 per each beach for SHORE and
INFRA) onto aluminium foil and dried for 24 h at 60, after which
150 g were placed in a 500 mL high saline concentration solution
(360 g NaCl L1) before undergoing a two-step decantation. The
solution was manually shaken twice for two minutes before leaving
it to rest for 30 min.