▁in ▁ 2 0 1 2 ▁as ▁a ▁general ▁term ▁for ▁the ▁variety ▁of ▁to x ins ▁produced ▁by ▁din of lag ell ates . ▁Din of lag ell ates ▁are ▁an ▁enorm ous ▁group ▁of ▁marine ▁life , ▁with ▁much ▁divers ity . ▁With ▁great ▁divers ity ▁comes ▁many ▁different ▁to x ins , ▁however , ▁there ▁are ▁a ▁few ▁to x ins ▁( or ▁derivatives ) ▁that ▁multiple ▁species ▁have ▁in ▁common . ▁ ▁Din of lag ell ates ▁normally ▁have ▁a ▁low ▁to x in ▁production ▁rate , ▁therefore ▁in ▁small ▁concentr ations ▁their ▁to x ins ▁are ▁not ▁pot ent . ▁However ▁their ▁to x ins ▁are ▁highly ▁poison ous ▁in ▁large ▁concentr ations . ▁They ▁are ▁capable ▁of ▁poison ing ▁various ▁species ▁of ▁marine ▁life ▁such ▁as ▁many ▁fish ▁and ▁shell fish , ▁and ▁affect ing ▁the ▁nerv ous ▁system ▁of ▁any ▁wild life ▁or ▁humans ▁that ▁consume ▁the ▁inf ected ▁marine ▁life , ▁or ▁drink ▁the ▁cont amin ated ▁water . ▁Under ▁blo om ▁conditions , ▁commonly ▁referred ▁to ▁as ▁red ▁t ides ▁or ▁harm ful ▁alg al ▁blo oms , ▁din of lag ell ates ▁are ▁capable ▁of ▁producing ▁immense ▁din ot ox in ▁concentr ations ▁causing ▁large ▁fish ▁die - offs , ▁and ▁cont am ination ▁of ▁shell fish . ▁This ▁cont am ination ▁of ▁shell fish ▁leads ▁to ▁multiple ▁severe ▁human ▁related ▁ill ness es . ▁These ▁ill ness es ▁include ▁par al yt ic ▁shell fish ▁poison ing , ▁di arr h etic