Polluhon, in all ils lorms, nlosl rapidly permeares lindscapes and soelenes via waler. Whom/u we nave used bloodes in a ealcnulenl, we ran leap dealll in llle rivers and llle seas nllslwre as lar our ds llle reel areas, and in in: sea ilsell. Tile dealli oi will reel areas is elosely eorrelaled Willi llle use ol 2,443 and 2,A,5~1 inland Preservanon ol llle cleanliness and varlely al wakr nabilals is as mural in llle survival oi nalions as is lire eonservalieul nl soils solll are in peril loday. ln speeiallsed sullures, wa|er beeomes the main medium lor llle snslenanee, and all island euliures nearly cornbliu llle wimr and earlll resources, as does lne old Hawaiian ahmm synlllesls {figure 10.13! Elsewneie, as on llle zupbrals and on me Tilleaea in Peru, whok- eullures based on reed Ms derive lurare, boals, hansms, bread, and meal lrom Tvpllul vnrngnirles, Cypenis or like reeds, while ii is said lhal llne Azlms al Lake lenlxnllllan in Mexleo llad wbal is possibly llle nwst prodllelive syslern oi polyculmre yel devised, Wllh einnarnpa mp, waierlowl, reedbed. arid llsll elilluie mmhmldv llle eullnres in lemaeed padl (rice and ram: serve inuell ol Asia and oeeailia, min minor subsidiary erops. llle dellale maaes ol llle Fly. cllall rialla, Mekong. Nile, and Gang: rivers suppnrl lien eulnlras 0! gm." \‘Irifly and msuume ch ,Wnll marine, esluary. Iresllwaler, mangrove. and land organisms in elimise lroirl. Many ol lbese idvnnmsrs ean be lal ly eneaply cleared in ulosl lniinld and some and environ ineills, even il in rmnlalure senile |M woes, llleie was a lively and large global aquerium liade, and planls. nlolliises, lisll and no doubl ase mgamsms were widely dlslribured Many oi lbese were released inio loeal slreams and brealne llalurallsed Even lilis eiieel was dwarled by llle gnvzmmrnkasslsled disliibnlion and pidreelilrn ill salmnnid lull as a preserve ol llle ldle and die amuenl A leyv lien species, nolably rilapia and carp, were blvushl in as a basic larmed lood lor renaee nee and rare enlnire in Asla m in (amine areas However, ii is slill |r|u‘ mar llle grear ulaioniy ol aliuaeulnires nave a piedominanlly local flavour and species cumposlfinn, and led lmrodueed speeies nave proved (a be as adapled and produellye, or as uniquely sulled, as indigenous spenes. Only ll mere are no loul rpetits, or it all ll-ials in using lo