Masu bincike sun sami damar yin bayanin abubuwan da ke haifar da haske wanda ya zama ruwan dare ga yawancin jinsunan kifayen teku daga hadarin. Etmopterus. A cikin wallafe-wallafen Rasha ana kiransu mafi yawan baƙi ƙyalƙyalen sharks, kuma ana iya fassara harshen Turancin Ingilishi a matsayin "Shark Shark". Ofaya daga cikin jinsin su don iyawarsa haskaka ma ya sami suna Etciocus lucifer. Dukkan wakilan wannan halittar kananan kifayen kifayen ne, tsayin daka koda mafi girma jinsin da wuya ya wuce rabin m.
Haske halayyar dabbobi ne masu zurfin teku, amma kuma dangane da kifayen kifayen aikinsa ba a sani ba. Baza ayi amfani da shi ba wajen amfani da ganima kuma ba ya bayar da gudummawa ga tsarin sa. Akasin haka, zai iya jawo hankalin maƙiyin da ya fi girma a cikin kifin shar.
Masu bincike daga dakin binciken halittu na marine na Jami'ar Katolika na Louvain (Belgium) sun yi cikakken bayani game da luminescence na daya daga cikin jinsunan wannan halittar - farar fata sharkKwakwalwa na Etmopterus), zaune a Tekun Bahar Rum da Tekun Atlantika. Julien Claes ya jagoranta, sun kalli waɗannan sharks ɗin da aka gudanar a wurin ruwan teku na ƙasar Norway a Hespeand. Masana kimiyya sun gano cewa siffar yankuna masu haske ya bambanta tsakanin maza da mata. Sabili da haka, haske zai iya taimaka ma sharks su sami wata mace yayin lokacin kiwo, wanda a cikin duhu mai zurfi zai iya zama aiki mai wahala. "Haske mai haske ya fi mayar da hankali ne a cikin fatar, kuma ana daidaita karfinsa da kwayoyin," in ji Julien Klaas.
Amuri
Don kwatanta ikon haskakawa a cikin nau'ikan kifayen kifayen, an fara nazarin Klaes dallaf darinf dabbar dabbar shark dabbar Kauyan squaliolus. Wannan kankanin kifin ya kai tsawon santimita 22 kawai kuma yana ɗaya daga cikin ƙananan kifayen kifayen da ke duniya.
A dare, waɗannan dabbar sharks suna zuwa zurfin kusan mita 200, kuma a lokacin rana zasu iya tafiya har ƙasa - zuwa zurfin har zuwa mita dubu 2!
Yayin gudanar da bincike, Claes ya gano babban bambanci tsakanin dabbar dabbar shark da sauran dangi. Prolactin na kwayar, wanda "ke kunna" haske a cikin fitilun shark, yana aiki ta wata hanyar don dwarf spiny shark - akasin haka, yana "kashe" luminescence ""Claes bayyana.
Klaes ya ce saboda gaskiyar cewa dwarf spiny shark baya iya sarrafa haske sosai, masana kimiyya zasu iya fahimtar yadda wannan karfin ma ya bunkasa. "Wataƙila, an canza ikon sarrafa luminescence daga ikon rufe fuska a cikin ruwa mai zurfi a cikin magabatan wannan babban ɗan shar." in ji Claes.
Sharks a cikin tekuna mara zurfi na iya fadawa wasu masu farauta, amma ikon canza launi na fata zai iya ceton rayuwa a wannan mazauninsu.
Ta hanyar samar da kwayoyin halittu daban-daban, sharks “trigger” duhu mai duhu da fitilar fata, wanda shine abinda ya shawo kan ikon samar da hasken a jikin jinsunan teku.
A cikin dabbar dabbar sharks da kuma cikin shark-lanterns, gabobin luminescence suna aiki gabaɗaya, kodayake, yayin da aka buɗe wuraren duhu da haske na fatar, kifayen na iya "kunna" kuma "kashe" haskensu.
Bayanan Gaske:
- Sharks ba wai kawai jinsunan da ke haskakawa yayin tafiya zuwa zurfin teku. Wasu nau'ikan squid suna haɗaka ƙwayoyin ƙwayoyin ƙwayoyin bioluminescent da gabobin haske don rufe fuska.
- Monkfish an san shi da amfani da haske don jawo hankalin masu farautar.
- Shanyen Shrimp Acanthephyra purpurea yana ba da gizagizai masu haske don kare kanta daga maharbanta.