Abacwaningi Bathola Umkhondo Obalulekile Empicabadala Ye-Sawfish Mating

eTallahassee, eFlorida. Ephreli 13, 2017. Ngokokuqala ngqá eminyakeni engu-17 yocwaningo olusekelwe eFlorida, ososayensi bathole indawo yokukhwelana ye-smalltooth sawfish Esengozini. Phakathi nohambo lwangasekuqaleni kuka-April oluya endaweni engemuva enamanzi angashoni e-Everglades National Park, ithimba labacwaningi lathwebula, limaka, futhi lakhulula izinhlanzi ezintathu ezisaha amadala (iduna elilodwa nezinsikazi ezimbili) endaweni ngaphambili eyayiyaziwa cishe kuphela njengendawo yokuhlala yezinhlanzi ezisaha. Bobathathu babenemivimbo ehlukile, ngokusobala eyaba khona ngesikhathi sokukhwelana, efana nephethini yamazinyo ekhala lezilwane elifana nesaha. Ithimba lihlanganisa ososayensi baseFlorida State University (FSU) kanye ne-National Atmospheric and Oceanic Administration (NOAA) abenza ucwaningo oluqhubekayo oluvunyelwe ngaphansi kwe-Endangered Species Act (ESA) ukuqapha impilo ye-sawfish.

"Sekuyisikhathi eside sicabanga ukuthi ukukhwelana kwe-sawfish kwakuyibhizinisi elinzima futhi eliwayo, kodwa sasingakaze sibone ukulimala okusha okuhambisana nokukhwelana kwakamuva, noma noma yibuphi ubufakazi bokuthi bekwenzeka ezindaweni ebesizifundela ikakhulukazi njengezindawo zokuzalanisa ama-sawfish," kusho. UDkt. Dean Grubbs, Ohlanganisa Umqondisi Wezocwaningo we-FSU's Coastal and Marine Laboratory. "Ukuthola ukuthi i-sawfish ihlangana kuphi futhi nini, nokuthi ingabe ikwenza ngababili noma ngamaqoqo, kubalulekile ekuqondeni umlando wabo wempilo kanye nemvelo."

Ososayensi basekela ukuphawula kwabo ngokuhlaziywa kwe-ultrasound namahomoni okwakubonisa ukuthi abesifazane babelungiselela ukukhulelwa. Abacwaningi baseFlorida babambe ama-sawfish abesilisa nabesifazane abadala ndawonye ezikhathini ezimbalwa kuphela, nasezindaweni ezimbalwa.

“Sonke sijabule kakhulu ngale ntuthuko enkulu emizamweni yethu yokudalula imikhuba engaqondakali yokukhwelana kwe-sawfish,” kusho u-Tonya Wiley, Umnikazi kanye noMongameli we-Haven Worth Consulting oneminyaka engu-16 yokuhlangenwe nakho kokufunda i-sawfish. “Nakuba ingxenye enkulu yeningizimu-ntshonalanga yeFlorida iye yabizwa ngokuthi 'indawo ebucayi' ye-smalltooth sawfish, lokhu okutholakele kugcizelela ukubaluleka okukhethekile kwe-Everglades National Park ekulondolozweni nasekuvuseleleni lezi zilwane."

I-smalltooth sawfish (Pristis pectinata) yafakwa ohlwini njenge Engcupheni ngaphansi kwe-ESA ngo-2003. Ngaphansi kobuholi be-NOAA, ukufakwa kuhlu kwakhuthaza ukuvikelwa okuqinile kombuso wezinhlobo zezilwane, ukuvikela indawo ebucayi, uhlelo oluphelele lokutakula, kanye nocwaningo olulawulwa ngokucophelela.

“Amasaha aseFlorida anomgwaqo omude wokululama, kodwa impumelelo ethokozisayo kuze kube manje inikeza izifundo nethemba kwabanye abantu abasengozini emhlabeni wonke,” kusho uSonja Fordham, uMongameli weShark Advocates International, iphrojekthi ye-The Ocean Foundation. “Okutholwe okusha kungasiza imizamo yokuvikela ama-sawfish ngezikhathi ezibucayi, kodwa futhi kugqamise isidingo sokuvikela uhlelo lwepaki oluqinisekisa indawo efanelekile yokuhlala, ukuxhaswa ngezimali kocwaningo, kanye nomthetho omkhulu oye waphumelela kuze kube manje.”

Oxhumana naye: Durene Gilbert
(850)-697-4095, [i-imeyili ivikelwe]

Amanothi Abahleli:
Ingemuva le-US smalltooth sawfish: http://www.fisheries.noaa.gov/pr/species/fish/smalltooth-sawfish.html
UDkt. Grubbs, Ms. Wiley, kanye noNkz Fordham basebenza Ethimba Le-NOAA's Sawfish Recovery Implementation. Imisebenzi yocwaningo eshiwo ngenhla yenziwa ngaphansi kwemvume ye-ESA engu-#17787 kanye nemvume ye-ENP EVER-2017-SCI-022.
Ngasekupheleni kuka-2016, uDkt. Grubbs wabika ukubonwa kokuqala kokuzalwa kwe-sawfish (ebhalwe e-Bahamas: https://marinelab.fsu.edu/aboutus/around-the-lab/articles/2016/sawfish-birth).
I-Disney Conservation Fund isekela iphrojekthi ehlanganyelwe yokufinyelela i-sawfish ye-Shark Advocates International kanye ne-Haven Worth Consulting. Abasebenzi bakwaDisney babambe iqhaza ohambweni luka-April 2017 lwe-sawfish.