{"refrec":{"BRefID":437019,"RR":"<b>Gronwald, F.; Weinberger, F.; Bouma, T.; Karez, R.</b> (2025). Sedimentation and drag in drifting macrophytes and plastic objects: a model. <i>NPG Scientific Reports 15(1)</i>: 43088. <a href=\"https://dx.doi.org/10.1038/s41598-025-28893-8\" target=\"_blank\">https://dx.doi.org/10.1038/s41598-025-28893-8</a>","BEntID":434849,"PublicFlag":1,"CheckedFlag":0,"wosflag":1,"vabbflag":1,"RefStringPartII":". <i>NPG Scientific Reports 15(1)</i>: 43088. <a href=\"https://dx.doi.org/10.1038/s41598-025-28893-8\" target=\"_blank\">https://dx.doi.org/10.1038/s41598-025-28893-8</a>","DocTypID":8,"DocType":"Journal article","MarineFlag":0,"FreshFlag":0,"BrackishFlag":0,"TerrestrialFlag":0,"Authorstring":"Gronwald, F.; Weinberger, F.; Bouma, T.; Karez, R.","OrigTitleTranslFlag":0,"Authorstringtrunc":"Gronwald, F. <i>et al.</i>","Englishabstract":"Predicting macroalgal sedimentation and drag sensitivity is essential for ecological and geochemical modeling, and for optimizing seaweed cultivation. However, despite the diversity of macrophyte forms, models incorporating their specific morphology and hydrodynamic effects are largely lacking. To develop a broadly applicable model, we tested whether the drag response of diverse macrophyte morphologies and plastic objects can be accurately predicted by approximating them as ellipsoids and accounting for their specific shapes. A set of simple shape descriptors (wet weight, volume, thallus thickness, thallus projection area) and an empirical solution to the drag equation enabled relatively accurate predictions of the sinking velocity for 26 morphologically diverse species of macroalgae in still water, as well as for eelgrass (<i>Zostera marina</i>), another major source of drifting biomass in many shallow seas. 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