Ubani isitha senhlazi yase-Asia?

Isingeniso: I-Asian Carp Invasion

I-Asian carp iyiqembu lezinhlanzi ezihlaselayo eziye zabangela izinkinga ezinkulu zemvelo e-United States kusukela ngawo-1970. Njengoba zingeniswe e-Asia ukuze zisetshenziswe e-aquaculture nanjengomthombo wokudla, lezi zinhlanzi selokhu zabalekela endle futhi zasakazeka ngokushesha kulo lonke umfula i-Mississippi nangaphezulu. Izinhlobo ezihlaselayo manje zisongela impilo yemvelo yendawo kanye nokuphila kwezinhlobo zezinhlanzi zomdabu ezweni lonke.

Usongo Ezinhlotsheni Zomdabu kanye Nemvelo

I-Asian carp iyingozi enkulu ezinhlotsheni zendabuko kanye nemvelo e-United States. Lezi zinhlanzi zaziwa ngokudla okudliwayo futhi zingadlula ngokushesha izinhlanzi zomdabu ngokudla nendawo yokuhlala. Ziphinde zizalane ngokushesha, kanti abesifazane bazalela amaqanda afinyelela esigidini esisodwa ngonyaka. Lokhu, kuhlangene nekhono labo lokuzivumelanisa nezimo ezihlukahlukene zemvelo, kubenza babe abahlaseli abesabekayo okunzima ukubalawula.

Yini eyenza i-Asian Carp ihlasele kangaka?

I-carp yase-Asia inezici ezimbalwa ezibenza bahlasele kakhulu. Zikhula ngokushesha, ezinye izinhlobo zifinyelela kumakhilogremu ayikhulu eminyakeni embalwa nje. Ziyakwazi futhi ukuzivumelanisa nezimo kakhulu, zikwazi ukuphila endaweni ebanzi yezimo zamanzi namazinga okushisa. Ekugcineni, banezilwane ezidla ezinye zemvelo ezimbalwa e-United States futhi bangakwazi ukudlula ngokushesha izinhlobo zomdabu ukuze bathole izinsiza.

Izinhlobo Ezine Ze-Asian Carp

Kunezinhlobo ezine ze-Asian carp e-United States: i-bighead carp, i-silver carp, i-carp emnyama, ne-carp yotshani. I-Bighead kanye ne-silver carp yizona ezaziwa kakhulu futhi zidale umonakalo omkhulu emvelweni wendawo. I-carp emnyama ngokuyinhloko i-herbivores futhi ayizange ibe yinkinga enkulu, kuyilapho i-carp yotshani ivame ukusetshenziswa e-aquaculture futhi ayizange isungule abantu basendle e-United States.

Ubani I-Natural Predator ye-Asian Carp?

I-Asian carp inezilwane ezidla ezinye zemvelo ezimbalwa e-United States, okuyisizathu esisodwa esenze ukuba ziphumelele kangaka ekuhlaseleni imvelo yendawo. Kodwa-ke, ezinye izinyoni nezilwane ezincelisayo ziye zaziwa ngokudla i-carp yase-Asia, kuhlanganise nama-bald eagle, ama-osprey, nama-otters omfula. Ukwengeza, ezinye izinhlobo zezinhlanzi, njenge-catfish nama-bass, ziye zaziwa ngokudla i-carp encane yase-Asia.

Ukulawulwa Kwebhayoloji: Iqhaza Lezinambuzane

Isixazululo esisodwa esingaba khona ekuhlaselweni kwe-carp yase-Asia ukusetshenziswa kwezinyathelo zokulawula izinto eziphilayo, njengama-parasites. Abacwaningi okwamanje bacwaninga ukusetshenziswa kwe-flatworm ye-parasitic ethelela i-carp yase-Asia futhi inciphisa amandla abo okuzala. Lokhu kungaba yindlela ephumelelayo yokulawula inani labantu base-Asian carp ngaphandle kokusebenzisa amakhemikhali noma izithiyo zomzimba.

Ukulawula Amakhemikhali: Ubuthi namaPheromones

Izinyathelo zokulawula amakhemikhali, ezifana nobuthi nama-pheromones, nazo zisetshenziselwe ukuphatha i-Asian carp. Isibonelo, ubuthi obubizwa ngokuthi i-rotenone bungasetshenziswa ukubulala inani elikhulu lezinhlanzi endaweni okuhlosiwe. Ama-pheromones, okungamakhemikhali asetshenziswa izinhlanzi ukuze zokuxhumana, angasetshenziswa futhi ukuze ahehe i-Asian carp endaweni ethile lapho ingasuswa khona.

Ukulawula ngokomzimba: Izithiyo nezicupho

Izinyathelo zokulawula ngokomzimba, njengezithiyo nezicupho, zisetshenziselwe ukuvimbela i-Asian carp ukuthi ingangeni ezindaweni ezintsha noma ukuyisusa kubantu abakhona. Isibonelo, izithiyo zikagesi zingasetshenziswa ukuvimbela i-Asian carp ukuthi ingangeni ezindaweni ezintsha, kuyilapho amanetha nezicupho zingasetshenziswa ukuze zisuswe kubantu abakhona.

Ukuzingela Nokudoba: Isixazululo Noma Inkinga?

Abanye abantu baye basikisela ukuthi ukuzingela nokudoba kungaba yisixazululo ekuhlaselweni kwe-carp yase-Asia. Kodwa-ke, akucaci ukuthi lokhu kungaba yindlela ephumelelayo yokulawula inani labantu base-Asian carp, njengoba bezala ngokushesha futhi bangakwazi ukuphinda bagcwalise indawo ngokushesha. Ukwengeza, kukhona ukukhathazeka mayelana nokuphepha kokudla kwe-Asian carp, njengoba baziwa ukuthi baqongelela ubuthi enyameni yabo.

Iqhaza Lobuchwepheshe Ekuphathweni Kwekhaphu yase-Asia

Ubuchwepheshe budlala indima ebaluleke kakhulu ekulawuleni abantu base-Asian carp. Isibonelo, abacwaningi bakha ama-drones angaphansi kwamanzi angakwazi ukubona futhi alandelele abantu base-Asian carp. Ukwengeza, amadivaysi okuvimbela i-acoustic asetshenziselwa ukuthusa i-Asian carp kude nezikebhe nezinye izindawo lapho engafunwa khona.

Uhlaka Lwezomthetho: Yini Engenziwa?

Kunemithetho embalwa nemithethonqubo ekhona yokuphatha ukuhlasela kwe-Asian carp, okuhlanganisa uMthetho weLacey kanye noMthetho Kazwelonke Wezinhlobo Ezihlaselayo. Kodwa-ke, kusekuningi okusamele kwenziwe ukuze kuphathwe ngempumelelo abantu base-Asian carp futhi kuvinjwe ukuthi bangasakazeki ngokuqhubekayo.

Isiphetho: Isidingo Sezixazululo Ezisebenzisanayo

Ukuhlasela kwe-Asian carp kuyinkinga eyinkimbinkimbi edinga izixazululo zokubambisana. Ososayensi, abakhi bezinqubomgomo, nomphakathi kumelwe basebenzisane ukuze bakhe izindlela zokulawula eziphumelelayo futhi bavimbele ukusabalala kwalezi zinhlobo zezinhlanzi ezihlaselayo. Ngokusebenzisana, singavikela imvelo yendawo futhi siqinisekise ukusinda kwezinhlobo zezinhlanzi zomdabu ezizukulwaneni ezizayo.