Ho pholoha Lilemo tse limilione tse 500 le ho nyamela ka ho panya ha leihlo: Pale ea Chambered Nautilus.

Ka: Gregory Jeff Barord, Seithuti sa PhD, Univesithi ea Motse oa New York - Setsi sa Liithuti, Univesithi ea Motse ea New York - Brooklyn College

Letsatsi la 1: Qetellong re fihlile Philippines har'a mp'a bosiu ka mor'a lihora tse ka bang 24 tsa ho fofa ho tloha New York City, ho phomola Korea Boroa, 'me qetellong ho ea Cebu, Philippines. Ka lehlohonolo, mosebetsi-'moho le rona oa Mafilipino o re emetse ka ntle ho boema-fofane ka pososelo e kholo le vene e kholo ho re isa hoteleng ea rona. Ke mofuta oa pososelo o lulang o etsa hore o shebe lehlakore le khanyang la lintho mme o tla paka hore oa hlokahala nakong ea leeto lena le likhoeling tse 16 tse tlang. Ka mor'a ho kenya mekotla ea 13 ea thōtō ka terakeng, re ea hoteleng 'me re qala ho rera lipatlisiso. Matsatsing a 17 a tlang re tla be re bokella datha ho lekola boholo ba baahi ba nautilus haufi le Sehlekehleke sa Bohol bohareng ba Philippines.

Leloko la nautilus, kapa sefate sa lelapa, le bile teng ka lilemo tse ka bang limilione tse 500. Ha ho bapisoa, lishaka li bile teng ka lilemo tse limilione tse 350, liphoofolo tse anyesang ka lilemo tse limilione tse 225, 'me batho ba kajeno ba bile teng ka lilemo tse 200,000 feela. Nakong ea lilemo tsena tse limilione tse 500, ponahalo ea mantlha ea li-nautilus ha e e-s'o fetohe haholo 'me ka lebaka lena, li-nautilus hangata li bitsoa "mesaletsa ea lintho tse phelang" hobane li-nautilus tse phelang maoatleng a kajeno li shebahala li tšoana haholo le baholo-holo ba tsona ba fossilized. Li-nautilus e bile lipaki tsa boholo ba bophelo bo bocha bo bileng teng polaneteng ena, hape li pholohile ho timela ho hoholo ho ileng ha felisa liphoofolo tse ling tse ngata.

Li-nautilus li amana le li-octopus, squid le cuttlefish; hammoho, liphoofolo tsena kaofela li etsa Sehlopha sa Cephalopoda. Bongata ba rona re tloaelane le li-octopus le squid ka lebaka la bokhoni ba tsona bo hlollang ba ho fetola mebala le boitšoaro bo bohlale. Leha ho le joalo, li-nautilus ha li khone ho fetola ’mala ’me li ’nile tsa nkoa e le tse se nang kelello ha li bapisoa le beng ka tsona ba octopus. (Leha ho le joalo, mosebetsi oa morao-rao o qala ho fetola monahano oo). Li-nautilus li boetse li fapane le li-cephalopods tse ling hobane li na le khetla e ka ntle, e metsero athe tse ling kaofela tse phelang li na le khetla e ka hare kapa ha li na khetla ho hang. Le hoja khetla ena e matla, e metsero e thusa ho laola le ho fana ka tšireletso, e boetse e fetohile thepa ea bohlokoa.

Re Philippines hobane le hoja li-nautilus li ntse li le teng ka limilione tsa lilemo, palo ea baahi ba tsona e bonahala e fokotseha ka lebaka la khatello e sa laoleheng ea ho tšoasa litlhapi. Nautilus fisheries e ile ea phatloha lilemong tsa bo-1970 hobane khetla ea tsona e ile ea fetoha ntho ea bohlokoa haholo bakeng sa khoebo 'me ea romeloa le ho rekisoa lefatšeng ka bophara. Khaketla e rekisoa e le joalo empa e boetse e robehile ebe e etsoa lintho tse ling tse kang likonopo, mekhabiso le mabenyane. Ka bomalimabe, ho ne ho se na melao e behiloeng bakeng sa ho beha leihlo hore na ho na le li-nautilus tse kae tse neng li tšoaroa. Ka lebaka leo, baahi ba bangata ba li-nautilus ba ile ba soahlamana 'me ba se ba sa tšehetsoe ke ho tšoasa litlhapi kahoo motšoasi oa litlhapi o ile a tlameha ho fallela sebakeng se secha. Potoloho ena e tsoetse pele libakeng tse ngata lilemong tse 40 tse fetileng.

Ke hobane'ng ha ho ne ho se na melao? Ke hobane'ng ha ho ne ho se na boikarabelo? Ke hobane’ng ha lihlopha tsa paballo ea lintho tsa tlhaho li ’nile tsa khaotsa ho sebetsa? Karabo ea mantlha ea lipotso tsena le tse ling ke hore ho ne ho se na data ea saense mabapi le boholo ba baahi ba nautilus le phello ea botšoasi ba litlhapi. Ntle le data leha e le efe, ho ke ke ha khoneha ho etsa letho. Ka 2010, United States Fish and Wildlife Service e ile ea tšehetsa ka lichelete morero o neng o tla etsa qeto ea hore na lilemo tse 40 tsa ho tšoasa litlhapi tse sa laoleheng li bile le phello efe ho baahi ba nautilus. Mohato oa pele morerong ona e bile ho etela Philippines le ho lekola palo ea baahi ba nautilus sebakeng seo ho sebelisoa maraba a nang le leraba.

Letsatsi 4: Sehlopha sa rona se se se fihlile sebakeng sa rona sa lipatlisiso Sehlekehlekeng sa Bohol ka mor'a leeto la lihora tse 3 ka seketsoana, le thōtō e eketsehileng, ho tloha Cebu ho ea Bohol. Re tla be re le mona libekeng tse peli tse tlang ho leka ho bokella lintlha tse mabapi le palo ea baahi ba nautilus Bohol.

Lula u mametse blog e latelang mabapi le leeto lena le lipatlisiso!

Bio ea hau: Gregory Jeff Barord hajoale ke seithuti sa PhD New York City 'me o ntse a etsa lipatlisiso ka bokhoni ba ho ithuta le ho hopola li-nautilus le ho etsa lipatlisiso tsa sebaka sa paballo mabapi le boholo ba baahi. Gregory o 'nile a etsa lipatlisiso tsa cephalopod ka lilemo tse fetang 10 hape o sebelitse ka har'a likepe tsa khoebo tsa ho tšoasa litlhapi Leoatleng la Bering e le Mohlokomeli oa Litlhapi oa ho beha leihlo quotas bakeng sa National Marine Fisheries Service. 

Links:
www.tonmo.com
http://www.nytimes.com/2011/10/25/science/25nautilus.html?_r=3&pagewanted=1&emc=eta1&