Raws li lub suab ntawm Suav Tebchaws Sawv Daws "Peb Nyob Hauv Tebchaws Suav", tsis ntev los no, lub website ntawm Ministry of Agriculture thiab Rural Affairs tshaj tawm "Txoj Kev Npaj Rau Kev Tswj Xyuas Tshwj Xeeb Kev Ntaus Dej hauv Dej Yangtze Phiab (Daim Qauv rau Kev Saib)". Qhov "Proposal" npaj siab tso cai cov ntawv tso cai tshwj xeeb nuv ntses xws li dej ntws ntawm Rivertech thiab dej ntws roob, thiab tso cov ntawv tso cai tshwj xeeb nuv ntses. Qhov no txhais tau hais tias cov ntau yam ntawm Yangtze River dej ua khoom yuav nkag mus rau ib qho kev txwv txiav npluav.
Raws li kev tshawb fawb ntawm Freshwater Fisheries Research Center ntawm Suav Academy ntawm Fishery Sciences, kev tsim cov dej ntws ntawm Yangtze River raws River Yangtze Phiab hauv 1973 yog 3,750 tons, thiab hauv 2011 nws yog 12 tons. Cov ntaub ntawv tau ua pov thawj tias qhov txo ntawm tus naj npawb ntawm Yangtze River swordfish yog qhov tseeb tsis muaj tseeb. Anhui Hefei tus neeg nuv ntses Wu tswv tau xam phaj nyob rau hauv lub Peb Hlis
Dej ntaj tiv thaiv Yangtze River tuaj yeem tsis muaj kev cai dab qhuas. Lub xeev tau ib txwm tswj cov kev cai nruj heev ntawm txoj kev nuv ntses ntawm cov dej ntws ntawm Yangtze River. Txij xyoo 2002, lub xeev tau pib siv cov kev txwv tiv thaiv kev tiv thaiv. Cov kev cai nuv ntses yog qhov tshwj xeeb, lub sijhawm nuv ntses yog qhov tshwj xeeb, thiab cov ntses ntawm cov ntses tseem yuav tsum tau muaj. Yang Jingfeng, tus thawj tsav xwm ntawm Tsav Nkoj Tsav Nkoj Hauv Cheeb Nroog Guizhou Chizhou, tau hais tias tsuas yog yim neeg ua liaj ua teb hauv thaj chaw muaj kev tsim nyog mus ntses.