Cilmi-baarayaashu waxay ka heleen tilmaamo Halis ah oo ku jira sirta ah ee Sawfish Mating

Tallahassee, Florida. Abriil 13, 2017. Markii ugu horreysay muddo 17 sano ah oo cilmi-baaris ku salaysan Florida, saynisyahannadu waxay heleen dhul isku-tagga oo loogu talagalay kalluunka ilka-yar ee khatarta ah. Intii lagu guda jiray socdaal horraantii Abriil oo loo socday waddanka-biyo-gacmeedka ee Everglades National Park, koox cilmi-baaris ah ayaa qabtay, calaamadisay, oo sii daayay saddex kalluun qaangaar ah (hal lab iyo laba dhedig) oo ku yaal aag hore loogu yaqaanay ku dhawaad ​​si gaar ah deegaanka seeffish ee dhallinta. Saddexduba waxa ay lahaayeen dildilaacyo kala duwan, oo sida muuqata joogteeyey xilliga lammaanaha, kuwaas oo u dhigma qaabka ilkaha ee sanka xayawaanka u eg. Kooxda waxaa ka mid ah saynisyahano ka socda Jaamacadda Gobolka Florida (FSU) iyo Maamulka Hawada Qaranka iyo Maamulka Badweynta (NOAA) kuwaas oo sameeya cilmi-baaris joogto ah oo loo oggol yahay Xeerka Noocyada Dabar-go'an (ESA) si ay ula socdaan caafimaadka dadweynaha kalluunka.

"Waxa aanu in badan u malaynaynay in kalluun-ku-socodku uu yahay ganacsi qallafsan oo qallafsan, laakiin weligay ma aannu arag dhaawacyo cusub oo la socda lammaaneyadii dhowaa, ama caddayn kasta oo ah in ay ka dhacayso aagagga aan u barannay ugu horrayn sidii dhul-ku-jiidashada kalluunka," ayuu yidhi. Dr. Dean Grubbs, Isku-duwaha Agaasimaha Cilmi-baarista ee Shaybaadhka Xeebta iyo Badda ee FSU. "In la ogaado halka iyo goorta ay saaxiibbada yihiin kalluunka sawfish, iyo haddii ay sidaas sameeyaan laba-labo ama isku-dar, waxay udub dhexaad u tahay fahamka taariikh nololeedkooda iyo deegaanka."

Saynis yahanadu waxay ku taageereen indha-indheyntooda ultrasound-ka iyo falanqaynta hoormoonka oo tilmaamaya in dumarku ay isu diyaarinayaan uur. Cilmi-baarayaasha Florida waxay qabteen kalluunka lab iyo dhedig ee qaangaarka ah dhowr jeer oo keliya, iyo meelo dhowr ah.

"Dhammaanteen aad ayaan ugu faraxsanahay horumarkan weyn ee dadaalkayaga ah inaan daaha ka qaadno caadooyinka lamaanaha ee qarsoodiga ah ee sawfish," ayay tiri Tonya Wiley, Mulkiilaha iyo Madaxweynaha Haven Worth Consulting oo leh 16 sano oo waayo-aragnimo ah oo baranaya kalluunka. "In kasta oo in badan oo ka mid ah Koonfur-galbeed Florida loo qoondeeyey inay yihiin 'deegaan muhiim ah' oo loogu talagalay kalluunka ilka yar, daahfurkani wuxuu hoosta ka xariiqay muhiimada gaarka ah ee Everglades National Park ilaalinta iyo soo kabashada noocyada."

Kalluunka ilka-yaraha (Pristis pectinata) ayaa lagu taxay sida halista ku jirta ee hoos timaada ESA sanadkii 2003. Marka loo eego hoggaanka NOAA, liisku wuxuu dhaliyay ilaalin xooggan oo federaal ah noocyada, ilaalinta deegaanka muhiimka ah, qorshe soo kabasho oo dhammaystiran, iyo cilmi-baaris taxaddar leh oo si taxadar leh loo xakameeyay.

"Saw kalluunkii Florida wuxuu leeyahay waddo dheer oo dib u soo kabashada, laakiin horumarka xiisaha leh ayaa ilaa hadda siinaya casharro iyo rajo dadka kale ee halista ku ah adduunka," ayay tiri Sonja Fordham, Madaxweynaha Shark Advocates International, oo ah mashruuc The Ocean Foundation. "Natiijooyinka cusubi waxay gacan ka geysan karaan dadaallada lagu ilaalinayo sawfishka waqtiyada muhiimka ah, laakiin sidoo kale waxay muujinayaan baahida loo qabo in la ilaaliyo nidaamka beerta kaas oo hubinaya deegaanka ku habboon, maalgelinta cilmi-baarista, iyo sharciga guud ee ka dhigay guusha ilaa hadda suurtagal."

Xiriirka: Durene Gilbert
(850)-697-4095, [emailka waa la ilaaliyay]

Ogeysiisyada Tifaftirayaasha:
Asalkii hore ee ilka-yaraha Maraykanka: http://www.fisheries.noaa.gov/pr/species/fish/smalltooth-sawfish.html
Dr. Grubbs, Ms. Wiley, iyo Marwo Fordham waxay ka shaqeeyaan Kooxda Hirgelinta Soo kabashada Sawfish ee NOAA. Hawlaha cilmi-baarista ee kor ku xusan waxaa lagu qabtay ogolaanshaha ESA #17787 iyo ogolaanshaha ENP EVER-2017-SCI-022.
Dabayaaqadii 2016, Dr. Grubbs ayaa ka warbixiyay indha-indheyntii ugu horreysay ee dhalashada kalluunka sawfish (laga duubay Bahamas: https://marinelab.fsu.edu/aboutus/around-the-lab/articles/2016/sawfish-birth).
Sanduuqa Ilaalinta Disney waxay taageertaa mashruuc wada jir ah oo fidinta kalluunka sawfish ee Shark Advocates International iyo Haven Worth Consulting. Shaqaalaha Disney waxay ka qaybqaateen safarkii seef kalluunkii Abriil 2017.