Zaj dab neeg no yog ib yam khoom ntawm tus Mississippi River Basin Ag & Lub Rooj Dej, ib qho kev tshaj tawm xov xwm ywj pheej raws li hauv University of Missouri Lub Tsev Kawm Ntawv ntawm Kev Sau Xov Xwm hauv kev koom tes nrog Kev Qhia Txog Asmeskas thiab tau txais nyiaj los ntawm Walton Family Foundation. Wisconsin Saib yog ib tug tswv cuab ntawm lub network. Sau npe rau peb tsab ntawv xov xwm thiab pub los txhawb peb qhov tseeb-kuaj sau xov xwm.

Cov carp dub, ib qho ntawm plaub hom kab mob ntawm cov carp hauv North America, tau ua rau hauv Mississippi River phiab.

Ib daim ntawv tshaj tawm ntau xyoo tshiab los ntawm US Geological Survey (USGS) pom qhov ntau ntawm dub carp hauv Mississippi River phiab tam sim no suav nrog tag nrho tus dej, los ntawm New Orleans mus rau sab qab teb sab hnub tuaj ntawm Iowa, ze Keokuk.

Cov carp dub yog ib hom ntses loj nyob rau thaj tsam ntawm Asia sab hnub tuaj, feem ntau loj hlob tshaj peb taw ntev thiab hnyav tshaj 100 phaus. Cov ntses tau txhob txwm coj mus rau cov xeev thaum xyoo 1970s los ua kev tswj xyuas kab tsuag rau cov kwj dej hauv cov pas dej ntses. Cov pejxeem loj hlob sai heev ntawm kev tswj hwm.

Kev tshawb fawb tau ua tiav los ntawm kev tshuaj xyuas "pob pob zeb," lossis "otoliths" - ntawm ntau tshaj 200 carp dub los ntawm 2011 txog 2018 kom sib txawv seb lawv yog tsiaj qus lossis ua liaj ua teb.

Patrick Kroboth yog tus kws kho tsiaj ntses nrog USGS's Columbia Environmental Research Center hauv Columbia, Missouri, thiab ib tus kws sau ntawv ntawm txoj kev tshawb no, luam tawm nyob rau hauv Biological Invasions. Nws hais tias carp pob ntseg pob zeb, ntawm lwm txoj hauv kev, xam pom qhov tseem ceeb hauv lawv qhov kev tshawb pom.

"Raws li ntses loj hlob, cov qauv calcified tso qee qhov micro-chemistry ntawm cov dej nyob ib ncig ntawm cov ntses, ib puag ncig uas nws nyob hauv, nws tau ntes nyob ntawd," nws hais.

Thaum lub xub ntiag ntawm cov carp dub nyob rau hauv ib feem ntawm Mississippi River phiab tau raug tshaj tawm yav dhau los, kev tshawb fawb xaus tias tam sim no cov pej xeem tau txhawb nqa tus kheej.

Cov carp dub yog molluscivore, txhais tau hais tias nws tsuas yog noj cov qwj, clams, thiab mussels, ntawm lwm cov mollusks. Kroboth tau hais tias qhov no ua rau muaj kev pheej hmoo rau Mississippi River thiab nws cov ceg ntoo.

“Ntau yam ntawm North America cov kab mussel raug hem thiab muaj kev puas tsuaj. Qhov ntawd yog qhov tseeb tias muaj kev txhawj xeeb, "nws hais.

Rov qab rau xyoo 2003, thawj qhov tsis raug ntes dub tau pom nyob rau yav qab teb Illinois oxbow pas dej uas nyob ib sab ntawm tus dej Mississippi. Tsis ntev tas los no, cov neeg nuv ntses ua lag luam hauv Louisiana tau tshaj tawm txog kev ntes ntses thoob plaws xyoo 1990 hauv cov dej liab thiab Atchafalaya.

Brad Parsons, nrog rau Mississippi Interstate Cooperative Resource Association, hais tias biologists tau xav ntev ntev tias cov carp dub nyob hauv lub phiab, thiab tam sim no qhov tseem ceeb yuav tsum tau txheeb xyuas seb yuav tswj cov kab tsuag li cas.

Parsons tau hais tias "Qhov tseeb yog - ntses tsis nkag siab txog kev nom kev tswv ciam teb, thiab lawv tsis raug khi los ntawm lawv," Parsons hais. "Ib tug ntses nyob hauv Mississippi River ib hnub tuaj yeem nyob hauv Ohio River tom ntej."

Tshaj li lub ntsiab ntawm tus dej Mississippi, cov carp dub kuj suav nrog feem ntau ntawm nws cov tributaries: Cumberland, Illinois, Kaskaskia, Missouri, Ohio, Tennessee, Wabash, thiab Dawb dej. 

Parsons tau hais tias kev tswj hwm ntawm cov kab mob nkag mus rau hauv Mississippi River yuav xav tau kev sib koom tes thiab kev sib koom ua ke kom muaj txiaj ntsig zoo los tiv thaiv cov kev hem thawj uas tshwm sim uas cov carp tsim.

"Peb cov hom tsiaj nyob hauv lub tebchaws yog qhov zoo kawg nkaus, lawv tau nyob ntawm no ntev heev. Tab sis lawv tab tom ntsib kev ua phem rau pem hauv ntej, "Parson hais. "Thiab, koj paub, peb tsis tas yuav muaj kev sib tw tshiab ntxiv kom muab pov rau hauv qhov sib xyaw ntawm no."

Mississippi River lub keeb kwm siab thiab qis dej vex shipping kev lag luam

Chlorine tsim teeb meem byproducts nyob rau hauv cov dej haus. Kev tshawb fawb tshiab nrhiav kev daws teeb meem.

Kaw lub qhov rai X

Rov luam tawm tsab xov xwm no

Cov haujlwm no yog ntawv tso cai los ntawm a Cov Tswv Yim Muaj Peev Xwm Muaj Tshab-NoDeriv Txiaj Ntsig 4.0 International Daim Ntawv Tso Cai.

Scroll cia rau luam thiab muab cov cai ntawm peb tsab xov xwm rau hauv koj CMS. Cov lis dej num rau dluab, graphics thiab lwm yam embeddable ntsiab yuav tsis hloov raws nraim li lawv tshwm nyob rau hauv peb lub site. *** Tsis tas li ntawd, cov cai hauv qab no yuav TSIS luam cov duab tshwj xeeb ntawm nplooj ntawv. Zoo siab txais tos koj mus download tau lub ntsiab duab raws li ib tug nyias muaj nyias ib lub caij rau kev tshaj tawm nrog zaj dab neeg no. *** Zoo siab txais tos rau republish peb cov lus rau free siv cov cai hauv qab no.

• Yuav tsum muab credit, hauv hom ntawv no: “Los ntawm Dee J. Hall, Wisconsin Watch”
• Kev hloov kho cov ntaub ntawv raug txwv, tshwj tsis yog xav txog kev hloov pauv ntawm lub sijhawm, qhov chaw thiab cov qauv hauv tsev (piv txwv li, siv "Waunakee, Wis." es tsis txhob "Waunakee" lossis hloov " nag hmo" mus rau "lub lim tiam dhau los")
• Lwm yam tshaj li kev hloov kho kom zoo nkauj me me thiab font, koj yuav tsis hloov cov qauv tsim lossis pom cov duab ntawm zaj dab neeg.
• Yog tias luam tawm online, koj yuav tsum suav nrog cov ntawv txuas thiab txuas rau ntawm wisconsinwatch.org
• Yog tias koj qhia zaj dab neeg hauv kev tshaj xov xwm, thov hu rau @wisconsinwatch (Twitter, Facebook thiab Instagram), thiab xyuas kom meej tias cov duab tseem ceeb uas cuam tshuam nrog zaj dab neeg yog pom ntawm kev tshaj tawm hauv social media.
• Tsis txhob muag zaj dab neeg lossis ib feem ntawm nws - nws yuav tsis raug muag raws li cov khoom lag luam.
• Tsis txhob rho tawm, khaws lossis muag Wisconsin Watch cov ntsiab lus raws li cov ntaub ntawv.
• Tsis txhob muag tshaj tawm tawm tsam zaj dab neeg. Tab sis koj tuaj yeem luam tawm nws nrog kev tshaj tawm ua ntej muag.
• Koj lub vev xaib yuav tsum suav nrog txoj hauv kev tseem ceeb los tiv tauj koj.
• Cov ntsiab lus ntxiv uas tau ntim nrog peb zaj dab neeg yuav tsum tau sau npe.
• Cov neeg siv tuaj yeem rov luam tawm peb cov duab, duab kos duab, duab thiab ntau yam ntsiab lus tsuas yog nrog cov dab neeg uas lawv tau tshwm sim thawj zaug. Koj yuav tsis cais cov ntsiab lus multimedia rau kev siv ib leeg. 
• Yog tias peb xa koj daim ntawv thov hloov lossis tshem tawm Wisconsin Watch cov ntsiab lus ntawm koj lub xaib, koj yuav tsum pom zoo ua tam sim ntawd.

Yog xav paub ntxiv txog kev tshaj tawm cov cai thov hu rau Coburn Dukehart, tus thawj coj koom tes, ntawm cdukehart@wisconsinwatch.org

Invasive black carp tam sim no vam meej hauv Mississippi River phiab

los ntawm Juanpablo Ramirez-Franco / WNIJ-Northern Public Radio, Wisconsin Watch
Hlis ntuj nqeg 19, 2022

Invasive black carp tam sim no vam meej hauv Mississippi River phiab los ntawm Juanpablo Ramirez-Franco / WNIJ-Northern Public Radio, Wisconsin Watch Kaum Ob Hlis 1, 1 Zaj dab neeg no yog cov khoom lag luam ntawm Mississippi River Basin Ag & Water Desk , ib qho kev tshaj tawm ywj pheej tshaj tawm xov xwm raws li University of Missouri Lub Tsev Kawm Ntawv ntawm Kev Sau Xov Xwm hauv kev koom tes nrog Tshaj Tawm Rau Asmeskas thiab tau txais nyiaj los ntawm Walton Family Foundation. Wisconsin Watch yog ib tug tswv cuab ntawm lub network. Sau npe rau peb tsab ntawv xov xwm thiab pub dawb los txhawb peb cov ntawv xov xwm uas tau txheeb xyuas qhov tseeb. Suab zaj dab neeg hais los ntawm Juanpablo Ramirez-Franco / WNIJ-Northern Public Radio. Cov carp dub, ib qho ntawm plaub hom kab mob ntawm cov carp hauv North America, tau ua rau hauv Mississippi River phiab. Ib daim ntawv tshaj tawm ntau xyoo tshiab los ntawm Asmeskas Geological Survey (USGS) pom qhov ntau ntawm cov carp dub hauv Mississippi River phiab tam sim no suav nrog tag nrho cov dej, los ntawm New Orleans mus rau sab qab teb sab hnub tuaj ntawm Iowa, ze Keokuk. Cov carp dub yog ib hom ntses loj nyob rau thaj tsam ntawm Asia sab hnub tuaj, feem ntau loj hlob tshaj peb taw ntev thiab hnyav tshaj 100 phaus. Cov ntses tau txhob txwm coj mus rau cov xeev thaum xyoo 1970s los ua kev tswj xyuas kab tsuag rau cov kwj dej hauv cov pas dej ntses. Cov pejxeem loj hlob sai heev ntawm kev tswj hwm. Kev tshawb fawb tau ua tiav los ntawm kev tshuaj xyuas "pob pob zeb," lossis "otoliths" - ntawm ntau tshaj 200 carp dub los ntawm 2011 txog 2018 kom sib txawv seb lawv yog tsiaj qus lossis ua liaj ua teb. Patrick Kroboth yog tus kws kho tsiaj ntses nrog USGS's Columbia Environmental Research Center hauv Columbia, Missouri, thiab yog ib tus kws sau ntawv ntawm txoj kev tshawb no , luam tawm hauv Biological Invasions . Nws hais tias carp pob ntseg pob zeb, ntawm lwm txoj hauv kev, xam pom qhov tseem ceeb hauv lawv qhov kev tshawb pom. "Raws li ntses loj hlob, cov qauv calcified tso qee qhov micro-chemistry ntawm cov dej nyob ib ncig ntawm cov ntses, ib puag ncig uas nws nyob hauv, nws tau ntes nyob ntawd," nws hais. Thaum lub xub ntiag ntawm cov carp dub nyob rau hauv ib feem ntawm Mississippi River phiab tau raug tshaj tawm yav dhau los, kev tshawb fawb xaus tias tam sim no cov pej xeem tau txhawb nqa tus kheej. Cov carp dub yog molluscivore, txhais tau hais tias nws tsuas yog noj cov qwj, clams, thiab mussels, ntawm lwm cov mollusks. Kroboth tau hais tias qhov no ua rau muaj kev pheej hmoo rau Mississippi River thiab nws cov ceg ntoo. “Ntau yam ntawm North America cov kab mussel raug hem thiab muaj kev puas tsuaj. Qhov ntawd yog qhov tseeb tias muaj kev txhawj xeeb, "nws hais. Rov qab rau xyoo 2003, thawj qhov tsis raug ntes dub tau pom nyob rau yav qab teb Illinois oxbow pas dej uas nyob ib sab ntawm tus dej Mississippi. Tsis ntev tas los no, cov neeg nuv ntses ua lag luam hauv Louisiana tau tshaj tawm txog kev ntes ntses thoob plaws xyoo 1990 hauv cov dej liab thiab Atchafalaya. Cov carp dub tau txhob txwm coj mus rau cov xeev thaum xyoo 2022s los ntawm kev tswj kab tsuag rau cov kwj dej hauv cov pas dej ntses. Cov pejxeem loj hlob sai heev ntawm kev tswj hwm. (Courtesy ntawm US Geological Survey) Brad Parsons, nrog Mississippi Interstate Cooperative Resource Association , tau hais tias cov kws tshawb fawb txog biologist tau xav tias ntev ntev tias cov carp dub nyob hauv lub phiab, thiab tam sim no qhov tseem ceeb yuav tsum tau txheeb xyuas seb yuav tswj cov kab tsuag li cas. Parsons tau hais tias "Qhov tseeb yog - ntses tsis nkag siab txog kev nom kev tswv ciam teb, thiab lawv tsis raug khi los ntawm lawv," Parsons hais. "Ib tug ntses nyob hauv Mississippi River ib hnub tuaj yeem nyob hauv Ohio River tom ntej." Tshaj li lub ntsiab ntawm tus dej Mississippi, cov carp dub kuj suav nrog feem ntau ntawm nws cov tributaries: Cumberland, Illinois, Kaskaskia, Missouri, Ohio, Tennessee, Wabash, thiab Dawb dej. Parsons tau hais tias kev tswj hwm ntawm cov kab mob nkag mus rau hauv Mississippi River yuav xav tau kev sib koom tes thiab kev sib koom ua ke kom muaj txiaj ntsig zoo los tiv thaiv cov kev hem thawj uas tshwm sim uas cov carp tsim. "Peb cov hom tsiaj nyob hauv lub tebchaws yog qhov zoo kawg nkaus, lawv tau nyob ntawm no ntev heev. Tab sis lawv tab tom ntsib kev ua phem rau pem hauv ntej, "Parson hais. Luam rau ntawv los teev cia

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