Abaphandi bafumanisa umkhondo obalulekileyo kwiMystery yeSawfish Mating

eTallahassee, eFlorida. Ngomhla we-13 kuTshazimpuzi, ngo-2017. Okokuqala kwiminyaka eli-17 yophando olusekwe eFlorida, izazinzulu ziye zafumanisa indawo yokukhwelana ye-endangered smalltooth sawfish. Ngexesha lohambo ekuqaleni kuka-Epreli ukuya kwilizwe elingenamanzi angekho nzulu e-Everglades National Park, iqela lophando labamba, lafaka ithegi, laze lakhulula iisawfish ezintathu zabantu abadala (inkunzi enye nemazi ezimbini) kwindawo ebifudula isaziwa phantse njengendawo yokuhlala yabasarha abaselula. Bobathathu babenemivumbo eyahlukileyo, ekubonakala ukuba iqhubeka ngexesha lokukhwelana, efana namazinyo eempumlo zezilwanyana. Iqela libandakanya izazinzulu ezivela kwiYunivesithi yaseFlorida State (FSU) kunye ne-National Atmospheric and Oceanic Administration (NOAA) eqhuba uphando oluqhubekayo oluvunyelwe phantsi kwe-Endangered Species Act (ESA) ukujonga impilo yabantu be-sawfish.

“Kudala sicinga ukuba ukukhwelana kwe-sawfish lishishini elirhabaxa kwaye liyawa, kodwa asizange ngaphambili sibone ukonzakala okutsha okuhambelana nokukhwelana kwamva nje, okanye nabuphi na ubungqina bokuba ibisenzeka kwiindawo ebesifunda ngazo njengeendawo zokukhwela intlanzi,” utshilo. UGqr. Dean Grubbs, uMlawuli oManyeneyo woPhando we-FSU yeLebhu yoNxweme noLwandle. "Ukubona ukuba phi kwaye nini iqabane le-sawfish, kwaye nokuba bakwenza ngababini okanye ngokudibeneyo, kungundoqo ekuqondeni imbali yobomi babo kunye ne-ecology."

Izazinzulu ziye zaxhasa uqwalaselo lwabo nge-ultrasound kunye nohlalutyo lwamahomoni olwabonisa ukuba abafazi babelungiselela ukukhulelwa. Abaphandi baseFlorida babambe i-sawfish yamadoda nabasetyhini kunye ngamaxesha ambalwa, nakwiindawo ezimbalwa.

“Sonke sichulumancile kakhulu kolu phuhliso lukhulu kwiinzame zethu zokutyhila imikhwa engaqondakaliyo yokukhwelana kwe-sawfish,” utshilo u-Tonya Wiley, uMnini kunye noMongameli we-Haven Worth Consulting oneminyaka eli-16 yamava efunda i-sawfish. “Nangona ummandla omkhulu wakuMzantsi-ntshona weFlorida uye wachazwa 'njengendawo yokuhlala ebalulekileyo' ye-smalltooth sawfish, oku kufunyenweyo kugxininisa ukubaluleka okukhethekileyo kwe-Everglades National Park ekulondolozweni nasekubuyiselweni kolu lwandle.”

I-smalltooth sawfish (i-Pristis pectinata) ibhalwe njenge-Endangered phantsi kwe-ESA ngo-2003. Phantsi kobunkokeli be-NOAA, uluhlu lwakhuthaza ukhuseleko oluqinileyo lwe-federal yeentlobo, izikhuselo zendawo yokuhlala ebalulekileyo, isicwangciso esibanzi sokubuyisela, kunye nophando olulawulwa ngononophelo.

“Iintlanzi zaseFlorida zinendlela ende yokubuyela kwimeko entle, kodwa impumelelo echulumancisayo ukuza kuthi ga ngoku ibonelela ngezifundo kunye nethemba kwabanye abantu abasengozini kwihlabathi liphela,” utshilo uSonja Fordham, uMongameli weShark Advocates International, iprojekthi yeThe Ocean Foundation. “Ezi zinto zintsha zifunyenweyo zinokunceda iinzame zokukhusela i-sawfish ngamaxesha anzima, kodwa zikwabalaselisa imfuneko yokukhusela inkqubo yeepaki eqinisekisa indawo yokuhlala efanelekileyo, inkxaso-mali yophando, kunye nomthetho obanzi oye waphumelela ukuza kuthi ga ngoku.”

Qhagamshelana: Durene Gilbert
(850)-697-4095, [imeyile ikhuselwe]

Amanqaku aBahleli:
Imvelaphi ye-US smalltooth sawfish: http://www.fisheries.noaa.gov/pr/species/fish/smalltooth-sawfish.html
UGqr Grubbs, uNksz Wiley, kunye noNksz. Fordham basebenza kwiQela le-NOAA lokuBuyisa iSawfish. Imisebenzi yophando ekhankanywe ngasentla yenziwe phantsi kwemvume ye-ESA #17787 kunye nemvume ye-ENP EVER-2017-SCI-022.
Ngasekupheleni kwe-2016, uGqr Grubbs wabika ukubonwa kokuqala kokuzalwa kwe-sawfish (ebhalwe kwi-Bahamas: https://marinelab.fsu.edu/aboutus/around-the-lab/articles/2016/sawfish-birth).
I-Disney Conservation Fund ixhasa iprojekthi edibeneyo yokufikelela kwi-sawfish ye-Shark Advocates International kunye ne-Haven Worth Consulting. Abasebenzi beDisney bathathe inxaxheba kwi-expedition ye-sawfish ka-Aprili 2017.