▁of ▁decay ing ▁wood , ▁leaves ▁and ▁their ▁associated ▁micro bes . ▁They ▁may ▁also ▁eat ▁small ▁fish , ▁insect s , ▁ro tt ing ▁animal ▁flesh ▁and ▁other ▁det rit us ▁when ▁available . ▁A . ▁g ould i ▁is ▁very ▁long - l ived , ▁surv iving ▁for ▁up ▁to ▁ 6 0 ▁years . ▁It ▁has ▁previously ▁been ▁reported ▁to ▁att ain ▁weights ▁of ▁up ▁to ▁ ▁and ▁measure ▁over ▁ ▁long ; ▁however , ▁in ▁recent ▁years ▁the ▁majority ▁of ▁larger ▁spec im ens ▁are ▁. ▁When ▁fully ▁m ature ▁the ▁species ▁has ▁no ▁natural ▁pred ators ▁due ▁to ▁its ▁large ▁size , ▁while ▁smaller ▁individuals ▁can ▁be ▁pre y ▁of ▁plat yp us , ▁river ▁black fish ▁and ▁ra k ali . ▁ ▁Name ▁Although ▁a ▁c ray fish , ▁the ▁species ▁is ▁locally ▁known ▁as ▁the ▁giant ▁fresh water ▁lo b ster . ▁In ▁Tas man ian ▁Ab original ▁language ▁( pal awa ▁k ani ) ▁the ▁giant ▁fresh water ▁lo b ster ▁is ▁referred ▁to ▁as ▁lut ar al ip ina . ▁Pre viously , ▁it ▁has ▁been ▁common ▁to ▁use ▁‘ t ay ate a ’ ▁as ▁the ▁Ab original ▁name ▁for ▁A . ▁g ould i . ▁However , ▁historical ▁record ▁does ▁not ▁support ▁the ▁use ▁of ▁this ▁word ▁for ▁this ▁species . ▁The ▁pal awa ▁k ani ▁Language ▁Program ▁of ▁the ▁Tas man ian ▁Ab original ▁Centre ▁has ▁rev ived ▁‘ l ut ar al ip ina ’ ▁( pr on ounced :