Ntawm ntau hom aquaculture, eels zoo li muaj peev xwm muaj zog ntxiv kev loj hlob nyob rau hauv Asia. Eels yog hom kab lis kev cai zoo heev vim lawv siab ua lag luam tus nqi, siab yield, siab ciaj sia taus, thiab kawm tau zoo pathology. Ntawm 19 Anguilla hom, Japanese eel (Anguilla japonica) thiab European eel (Anguilla) anguilla) yog qhov tseem ceeb tshaj plaws hauv East Asia (feem ntau yog Nyiv, Taiwan, thiab Tuam Tshoj) thiab Teb chaws Europe (feem ntau yog Ltalis thiab Netherlands). Tag nrho cov eel ntau lawm hauv 1998 yog 222,547 metric tons thiab muaj nuj nqis ntawm US $ 1.3 billion (FAO, 2000). Cov nyiaj Japanese eel rau li ntawm 80 feem pua ntawm tag nrho cov eel ntau lawm thiab kwv yees li 60 feem pua ntawm tag nrho cov khoom siv hauv Nyiv.
Eel ntau lawm hauv Nyij Pooj tau poob los ntawm yuav luag 40 feem pua hauv kaum xyoo dhau los los ntawm 38,885metric tons hauv 1990 txog 22,836 metric tons hauv 1999. Piv txwv li, cov eel noj hauv Nyiv tau nce tsis tu ncua los ntawm 104,460 metric tons hauv 1990 txog 129,794 metric tons hauv 1999 (Satoh et al., 2001). Qhov sib txawv ntawm kev noj thiab kev tsim khoom ntawm eel nyob rau hauv Nyiv yog sau los ntawm imports.
Hauv Taiwan, eel aquaculture yog ib qho tseem ceeb tshaj plaws kev lag luam aquaculture. Covhom kab lis kev cai feem ntau yog cov Japanese eel. Taiwan siv los ua tus xa khoom loj ntawm eels mus rau Japanese ua lag luam. Ua ntej xyoo 1987, Taiwan muab ntau tshaj 90 feem pua ntawm cov neeg Nyij Pooj ntshuam txhua xyoo. Xyoo 1993, Taiwan xa tawm 49,547 metric tons mus rau Nyiv, tom qab ntawd txo qis txhua xyoo txij li lub sijhawm ntawd. Xyoo 1999, eels xa tawm mus rau Nyiv poob rau 8765 metric tons, uas tsuas yog 6.80 feem pua ntawm tag nrho cov khoom siv hauv Nyij Pooj. Taiwanese eel Aquaculture, zoo li nws cov Japanese counterpart, tau mus txog nws lub ncov ntawm kev loj hlob thiab tau nkag mus rau ib tug lub sij hawm poob (Liao, 1999, 2001).
Kev poob qis ntawm cov eel ntau lawm hauv Taiwan feem ntau yog tshwm sim los ntawm qhov nce ntawm eelaquaculture nyob rau hauv Tuam Tshoj thiab concomitant nce nyob rau hauv iav eel nqi. Cov eel aquaculture nyob rau hauv Suav teb tau loj hlob vim yog cov neeg ua haujlwm pheej yig thiab cov txuj ci thiab nyiaj txiag kev pab los ntawm Taiwanese thiab Japanese ua lag luam. Cov eel aquaculture cheeb tsam hauv Suav teb muaj kis los ntawm ntug dej hiav txwv ntawm Fu-Chien xeev mus rau Kuang-Tung thiab lwm lub xeev sab qaum teb (Shi et al., 1999). Tuam Tshoj tus eel xa tawm tau nce ntau ntawm 3.55 feem pua hauv xyoo 1985 rau 73.39 feem pua hauv xyoo 1999 ntawm tag nrho cov eel imports hauv Nyiv (Table 1). Nws tag nrho cov ntau lawm yog ntau siab dua cov khoom sib xyaw ua ke los ntawm tag nrho lwm lub tebchaws Esxias.
Taiwan, Nyiv, thiab Tuam Tshoj pab txhawb rau ntau dua 85.00 feem pua ntawm tag nrho lub ntiaj teb kev tsim khoom raws li kev noj haus. Tsis tas li ntawd, cov eel aquaculture nyob rau hauv cov teb chaws no yog sib tw ua lag luam nyob rau hauv Nyiv. Kev hloov pauv hauv kev sib tw ntawm eel aquaculture hauv Taiwan, Nyiv, thiab Tuam Tshoj tsis tsuas yog cuam tshuam cov txiaj ntsig ntawm cov ntses ntses tab sis kuj cuam tshuam kev txhim kho kev lag luam ntawm cov teb chaws koom nrog (Chou and Lee, 1993). Yog li ntawd, lub tsoom fwv thiab kev lag luam yuav tsum tau npaj rau qhov kev hloov pauv hauv kev sib tw.
Txawm hais tias tus nqi siv nyiaj hauv tsev (DRC) txoj hauv kev tau siv dav hauvtsom xam ntawm kev sib tw ntawm cov khoom siv ua liaj ua teb, tsuas yog qee qhov kev tshawb fawb tau ua ua rau cov khoom siv nuv ntses vim muaj teeb meem hauv kev sau cov ntaub ntawv txhim khu kev qha (Ling li al., 1999). Lub hom phiaj ntawm qhov kev tshawb fawb no yog siv lub tswv yim ntawm kev siv nyiaj txiag thiab comparative advantage theory los soj ntsuam kev sib tw ntawm cov eel aquaculture hauv Taiwan, Nyiv, thiab Tuam Tshoj.
Cov txiaj ntsig ntawm kev siv NPP thiab DRC hauv kev ntsuas kev sib tw qhia tau hais tias Suaveel aquaculture muaj kev sib tw kom zoo dua nws cov counterparts hauv Taiwan thiabNyiv. Raws li kev tshawb pom los ntawm Lee et al. (hauv xovxwm), ib zaug ua tiav larval raising yog ua tiav, tus nqi ntawm DRC qhov ntsuas yuav raug hloov pauv raws li cov nqi noob yuav hloov. Siv Tus nqi nruab nrab ntawm cov khoom tsim tawm thaum lub sij hawm 1995 - 1999 raws li lub hauv paus, DRC indices yuav ua {{0}}.35 –{4}}.77, 0.52– 1.15, thiab 0.29– 0.50 hauv Taiwan, Nyiv, thiab Tuam Tshoj, raws li , uas yuav qis dua lawv qhov ntsuas DRC tam sim no. Txij li thaum noob siv nyiaj pab rau a Ib feem loj ntawm tag nrho cov nqi tsim khoom hauv eel aquaculture, yog Nyiv thiab Taiwan nrhiav rov ua kom muaj kev sib tw hauv eel aquaculture, lawv yuav tsum tau txhim kho thev naus laus zis kev nce qib hauv kev nthuav tawm dag zog.
