Dear MARMAM list, is now published the article on "Floating marine macro litter: Density reference values and monitoring protocol settings from coast to offshore. Results from the MEDSEALITTER project" Monitoring Floating Marine Macro Litter (FMML) is a global priority, stressed within international programs, and regulated for the European Seas by the Marine Strategy Framework Directive. Although some well-defined common protocols exist for the assessment of beach litter and ingested litter, methodologies for FMML monitoring still vary, leading to some inconsistent results and hampering the global assessment of this threat. Within the MEDSEALITTER project (2016–2019), field experiments were implemented to define optimal monitoring parameters for FMML visual monitoring at different spatial scales, by assessing the influence of platform speed, strip width, observers experience, weather conditions, and litter size on its detectability. Along with the results of these experiments, we present the FMML density ranges detected across the over 20,000 km surveyed, highlighting a decreasing gradient from river mouths to coastal areas and the open sea, and providing a valuable contribution to the assessment of FMML in the Mediterranean Sea. The article is free for download at the link: https://authors.elsevier.com/a/1bkmW,ashxmp9 or could request in researchgate or to me at: antonella.arcangeli@isprambiente.it We hope it can be useful for the one of you that intend to integrate marine mammal surveys with marine litter monitoring. All the best antonella *********************************************** Antonella Arcangeli PhD ISPRA BIO Dep. - Environmental conservation and monitoring Via Brancati 60 00144 Rome Italy antonella.arcangeli@isprambiente.it ph. +39.06.50074470 mob. +39.349.3272200 ***********************************************