Thehumanbodyisnaturallybuoyantenoughthatcurrentsandwavescankeep a corpsewithintheupperlayersoftheoceanfor a longamountoftime.
Thiscanattractscavengerssuchassharkswho'llfeedon a corpse.
Specifically, ifyou'reinvolvedin a shipsinkingor a planecrashwhoselow-frequencysoundwavescouldtravelforhundredsofmilesandalertsharkstotheincominghumanbuffet.
Ifyourcorpsemanagestosink, however, itmayavoidpredationaltogether⏤giventhatitsinksquicklyenough.
Theopenoceanissplitintotwobiomes, with a greatvoidofwaterinbetweenthetwothatislargelybereftoflife.