▁near ▁the ▁water ▁surface ▁waiting ▁for ▁potential ▁pre y . ▁Although ▁spec im ens ▁have ▁been ▁found ▁with ▁the ▁remains ▁of ▁birds , ▁b ats , ▁m ice , ▁and ▁sn akes ▁in ▁their ▁st om ach s , ▁its ▁main ▁di et ▁consists ▁of ▁cr ust ace ans , ▁insect s , ▁smaller ▁fish , ▁and ▁other ▁animals ▁that ▁float ▁on ▁the ▁water ▁surface , ▁which ▁its ▁draw bridge - like ▁mouth ▁is ▁exclus ively ▁adapted ▁for ▁feed ing ▁on . ▁ ▁Conserv ation ▁status ▁The ▁silver ▁a row ana ▁is ▁currently ▁not ▁listed ▁on ▁any ▁C IT ES ▁append ix ▁ ▁nor ▁on ▁the ▁ 2 0 0 4 ▁IU CN ▁Red ▁List . ▁It ▁is ▁one ▁of ▁the ▁most ▁popular ▁orn amental ▁fish ▁from ▁South ▁America , ▁however , ▁and ▁therefore ▁its ▁conservation ▁status ▁mer its ▁attention . ▁ ▁As ▁reported ▁by ▁Environment ▁News ▁Service ▁in ▁August ▁ 2 0 0 5 , ▁shared ▁use ▁of ▁the ▁silver ▁a row ana ▁population ▁was ▁a ▁cause ▁for ▁a ▁dispute ▁between ▁Brazil ian ▁and ▁Colomb ian ▁authorities . ▁Ju ven ile ▁silver ▁a row anas ▁are ▁caught ▁in ▁Colombia ▁for ▁sale ▁as ▁aqu arium ▁fish , ▁while ▁the ▁people ▁of ▁Brazil ian ▁Ama z onia ▁catch ▁adult ▁fish ▁for ▁food . ▁A ▁sharp ▁drop ▁in ▁the ▁number ▁of ▁a row anas ▁had ▁caused ▁Brazil ian ▁authorities ▁to ▁prohib it ▁fish ing ▁of ▁them ▁between ▁September ▁ 1 ▁and ▁November ▁ 1 5 ; ▁the ▁Colomb ians ▁would ▁prohib it ▁capt uring ▁them