Lake Kegonsa muaj cov dej tsis zoo nyob hauv Yahara cov pas dej. Daim duab yog lub pas dej me me puam ntawm La Follette County Park hauv Stoughton. Mike DeVries / The Capital Times
Txhua lub pas dej tsis tsim muaj vaj huam sib luag. Thiab nyob rau hauv Madison cheeb tsam ntawm Yahara saw, Lake Kegonsa yog lub pas dej liab.
Cov thawj tswj dej thiab cov kws tshawb fawb los ntawm Green Bay mus rau Nyij Pooj tab tom saib Madison qhov kev siv zog tam sim no los ntxuav nws cov algae-beset saw ntawm pas dej - Mendota; Monona, thiab nws tus pab, Wingra; Ua tsaug; thiab Kegonsa, nyob rau hauv kev txiav txim ntawm cov kua.
Steve Carpenter, tus thawj coj ntawm Lub Chaw rau Limnology ntawm University of Wisconsin-Madison tau hais tias "Dab tsi tshwm sim hauv peb lub pas dej yog qhov ua tau zoo tshaj plaws." "Yog tias peb tuaj yeem ua nws ntawm no, ces peb cov ntaub ntawv ntawm cov cuab yeej tuaj yeem raug xa tawm. Nws yog ib lub chaw sim rau kev tsim kho tshiab. "
Txoj kev npaj rau lub pas dej yog tshaib plab cov algae thiab tshem tawm cov dej. Coj los ntawm lub koom haum Clean Lakes Alliance thiab koom nrog ntau tus neeg ua si hauv dej, cov phiaj xwm tsom mus rau ib nrab ntawm cov phosphorus khiav mus rau hauv txhua ntawm plaub lub pas dej loj.
Qhov kev xav zoo sib xws yog Madison Cheeb Tsam Lub Nroog Sewerage txoj kev sim, tam sim no nyob rau hauv pilot theem, them nyiaj rau cov neeg ua liaj ua teb kom txo lawv cov pa phem rau cov dej ntws, ib qho kev xaiv rau kev ua haujlwm kim ntawm kev txhim kho nws tus kheej cov nroj tsuag kho cov pa phem.
Carpenter thiab Richard Lathrop, ib tug so haujlwm ntev Wisconsin Department of Natural Resources lake researcher, tsis ntev los no tau luam tawm cov kev tshawb fawb piv rau kev tswj cov dej ntws, raws li tus yam ntxwv ntawm lub pas dej thiab lawv ib puag ncig. Qhov twg, lawv nug, tej zaum yuav txo cov pa phem yuav ua rau lub suab nrov tshaj plaws rau cov nyiaj?
Qhov ntawd yuav yog ntawm Lake Mendota, nyob rau sab saum toj ntawm cov saw hlau.
Rau Kegonsa tus tswv tsev so Tom DuFoe, qhov kev kwv yees zoo li hnov tias tus phooj ywg zoo muaj mob hnyav. Nws tau ua haujlwm Kegonsa Cove Resort tawm County Highway AB ntawm lub pas dej sab qaum teb rau peb xyoos. Nws tau saib hauv kev ntxhov siab vim cov nroj tsuag loj zuj zus tuaj.
DuFoe tau hais tias "Lawv muaj ob peb lub tshuab uas lawv siv los txiav cov nroj tsuag," tab sis lawv tsis ua nws ntau npaum li lawv xav tau. Nws nce zuj zus zuj zus. Cov neeg siv khoom yws txog cov nroj tsuag, tshwj xeeb tshaj yog lawv tau tangled nyob rau hauv lub kiv cua thiab zoo li ntawd. "
Tseem, kev lag luam tseem nyob ruaj khov ntawm lub chaw so. Cov neeg muas zaub xauj lub nkoj nuv ntses, pontoons thiab canoes, thiab bar thiab grill yog tibneeg hu tauj coob. Kegonsa muaj ntau yam los muab, DuFoe tau hais tias, uas ua rau txhua qhov kev tu siab uas cov kws paub txog pas dej tau pom tias nws nyuaj los daws cov teeb meem nroj tsuag hauv pas dej. DuFoe tau hais tias lub pas dej yog qhov tsawg tshaj plaws ntawm tag nrho Madison pas dej thiab kev nuv ntses tuaj yeem ua tau zoo, txawm tias muaj cov nroj tsuag. Nws yog ib qho ntawm cov pas dej uas koj tuaj yeem paddle lossis lub cev muaj zog tawm thiab khiav tawm ntawm cov neeg coob coob thiab cov nkoj loj thauj neeg caij skiers, nws hais ntxiv.
"Kuv nyiam lub pas dej no," DuFoe hais.
Vim li cas Kegonsa tsis muaj hmoo
Lake Kegonsa muaj dej tsis zoo nyob hauv Yahara saw.
Thaum kawg ntawm lub pas dej, nws tau txais phosphorus los ntawm tag nrho lwm cov pas dej. Kwv yees li peb feem plaub ntawm phosphorus hauv Lake Kegonsa los ntawm sab saud. Cov seem yog los ntawm kev ua liaj ua teb.
"Peb yuav tsum kawm los ntawm kev ua, thiab saib seb peb tuaj yeem tau txais dab tsi," nws hais. “Muaj kev cia siab. Txawm rau Kegonsa. "
Foy, tus tswv ntawm lub pas dej tau hais tias "Txhua tus neeg nyob hauv lub pas dej yuav qhia rau koj tias nws yog qhov chaw zoo nkauj nyob, hloov mus tas li,"
![]({"aperture":"18","credit":"MIKE DEVRIES","camera":"Canon EOS 5D Mark II","caption":"A experimental boom surrounded Madison\u2019s B.B. Clarke beach in 2010 to keep out algae, though it ended up being closed June 24 for high E. coli levels. Algae and bacteria are the prime causes for beach closures throughout the Madison area and the state. Mike DeVries\/The Capital Times","created_timestamp":"1277389352","copyright":"","focal_length":"28","iso":"100","shutter_speed":"0.005","title":"ALGAL SCUM 4.jpg"})
Dej ntxuav crustacean devoured los ntawm cov tsiaj nyeg tshiab hauv Lake Mendota![]({"aperture":"5.6","credit":"Mike DeVries","camera":"Canon EOS 5D Mark II","caption":"Box elders are removed from the banks of the Pleasant Valley Branch during a volunteer work day coordinated by Southern Wisconsin Trout Unlimited in March. The roots of the native tree are weak, allowing the stream bank to more easily fall into the water and disrupt fish habitat. Mike DeVries -- The Capital Times","created_timestamp":"1395479070","copyright":"","focal_length":"51","iso":"400","shutter_speed":"0.004","title":"PLEASANT VALLEY BRANCH 2.JPG"})
Cov tswv av, cov neeg ua haujlwm pab dawb koom ua ke los ntxuav cov dej 'kev puas tsuaj'
Lake Kegonsa, thaum kawg ntawm Yahara saw, tau txais peb feem peb ntawm nws cov phosphorus los ntawm cov pas dej ntws. Nws "yuav tsum tau nthuav tawm cov lus teb tsis zoo rau kev tswj hwm," cov kws tshawb fawb Steve Carpenter thiab Richard Lathrop tau sau. Brandon Raygo / The Capital Times
