I sent your message to Bryony Pearce who is doing the statistical treatments of my fish monitoring in Dieppe and informed her to contact you directly through Reasearch Gate. I am sure she can give you a positive answer to your questions.
Thanks for your help. I already convinced myself to redo the analysis using adonis of R package vegan. In your ICES paper, Primer's anosim was used but according to vegan author Jari Oksanen, the adonis procedure is more robust and therefore preferred. In my benthos recolonisation paper I already used adonis. In my first paper we investigated whether macrozoobenthic assemblages were significantly different using Simprof routines (also included in Primer). Assemblages were also separated in the nMDS plots.
Thanks for the help and I'm looking forward to receive the answer of Bryony Pearce.