▁sn ail , ▁E c rob ia ▁trunc ata . ▁Other ▁par as ite ▁species ▁reported ▁in ▁m umm ich ogs ▁include ▁ 1 0 ▁proto zo ans , ▁eight ▁trem at odes , ▁one ▁n emat ode , ▁two ▁ac anth oce phal ans , ▁and ▁two ▁cr ust ace ans . ▁ ▁A ▁study ▁in ▁New ▁Jersey ▁found ▁that ▁m umm ich ogs ▁heavily ▁inf ested ▁with ▁the ▁dig ene an ▁g ill ▁par as ite ▁As c oc ot yle ▁ph ag icola , ▁spent ▁more ▁time ▁near ▁the ▁surface ▁and ▁exhib ited ▁consp ic uous ▁behav iors ▁such ▁as ▁j erk ing , ▁an ▁example ▁of ▁a ▁par as ite ▁affect ing ▁the ▁behavior ▁of ▁its ▁host ▁in ▁a ▁way ▁benef icial ▁to ▁the ▁par as ite , ▁as ▁consp ic uous ▁behav iors ▁near ▁the ▁surface ▁make ▁the ▁fish ▁more ▁likely ▁to ▁be ▁noticed ▁by ▁pre dat ory ▁w ading ▁birds , ▁the ▁next ▁host ▁in ▁the ▁par as ite ' s ▁life ▁cycle . ▁ ▁Interest ▁to ▁humans ▁ ▁M umm ich ogs ▁are ▁sold ▁as ▁b ait ▁in ▁sport ▁fish eries ▁for ▁marine ▁species ▁such ▁as ▁summer ▁fl ound er ▁and ▁blue fish , ▁or ▁even ▁sometimes ▁for ▁fresh water ▁species . ▁ ▁M umm ich ogs ▁readily ▁eat ▁mos qu ito ▁lar va e ▁and ▁attempts ▁have ▁been ▁made ▁to ▁use ▁them ▁as ▁bio control ▁agents ▁of ▁mos qu ito ▁populations . ▁ ▁Scient ific ▁utility ▁ ▁M umm ich ogs ▁are ▁considered ▁an ▁important