... In terms of abundance and weight, the MD on the Bali Island southern coast is lower, higher, and almost the same as previous studies worldwide that used a similar survey method (Table 2). It is due to differences in local dynamic conditions at each study location (Browne et al., 2015), such as rainfall (Ryan and Perold, 2021), season (Cheung et al., 2016;Shimizu et al., 2008), flood events (Topçu et al., 2013), river discharge (Krelling and Turra, 2019), typhoon/storms (Smith and Markic, 2013;Swanson et al., 2016), waves (Pieper et al., 2015), surface current (Agustin et al., 2015;Kako et al., 2018;Kubota, 1994;, tides (Lorenzi et al., 2020;van Emmerik et al., 2020), wind, bathymetry (Ambrose et al., 2019;Browne et al., 2015), dan tsunami (Hipfner et al., 2018;Matthews et al., 2017;Maximenko et al., 2018). Besides that, geographical circumstances related to human activities such as population density (Schmuck et al., 2017), tourism (Behera et al., 2021;Hoellein et al., 2015;Mghili et al., 2020;Mugilarasan et al., 2021), aquaculture, fisheries (Eastman et al., 2013;Greggio et al., 2018;Thushari et al., 2017), festival (Behera et al., 2021), regular cleaning program (da Silva et al., 2018;Schmuck et al., 2017), and the existence of inadequate management landfills (Ambrose et al., 2019;Witteveen et al., 2017), is also strongly affected the accumulation of stranded MD on the beach. ...