Kifi "teku shaidan" - rage cin abinci, mai rai yanayi, haifuwa

Daya daga cikin mafi girma da kuma mafi almara halittun da karkashin ruwa mulki - kifi 'tẽku-shaidan ne. " A size shi ne mafi ƙaranci daga gare wasu Whales, amma ba daya daga cikin ya fi girma membobin wannan superclass cikin ruwa vertabrate da aka samu a cikin zurfin teku da kuma tekuna. Kuma da primacy camfin da camfe, kawai kwanan nan dethroned, shi riko ga ƙarni da dama.

Opening na "teku-shaidan"

Da farko da aka bayyana, kuma suna da wannan dabba Johann Valbaum - Jamus dabbobi, likita da kuma halittu. Ya kira shi Raja birostris. da ya faru, da tarihi nagartacce, ba haka ba da dadewa - a 1792. Ya kamata a lura, tarihin wadannan cartilaginous kifi mafi m da kuma m, a kwatanta da sauran abubuwa masu rai: ga ƙarni biyu, aka ba su 25-daban na "sunayen" da kuma dozin Generic. Kimiyyar zamani gane da sunan Manta birostris. Har kwanan nan an yi tunanin cewa kifi 'tẽku-shaidan "- kadai wakilin giant manta haskoki. Duk da haka, a shekarar 2009, an kasaftawa wani irin, Manta alfredi, da ciwon gagarumin bambance-bambance, da kuma a cikin bayyanar, kuma a ci gaba da kuma ilimin halittar jiki, amma suna kama a size, rage cin abinci da kuma salon rayuwa.

Legends da camfin

Kifi 'tẽku-shaidan "(hoton sama) ya samu sunan barkwanci saboda irin siffan shugaban fins - shi aika su abinci a bakinka. Daga nesa da suka yi kama da ƙahoni. da kuma bai wa babba size daga cikin mutum, shi ne ba abin mamaki ba cewa shi ne m teku matafiya. Turawa iyo a wurare masu zafi ruwa, yi imani da cewa idan da fushin shaidan-kifi, shi zai nutse a cikin jirgi, kuma zai kori bayan shi da wani unquenchable fushi da kuma juriyarsu. A kudu maso gabas Asia saduwa manta haskoki nufi (da nufin ya zuwa yanzu) zai wahala ya kuma mafi wahala. Yana da aka ji cewa wata babbar lebur jiki ne m riga for wrapping samar da wani ra'ayi zuwa ganĩmõmi (a wani version - crushing idan mutum wani abu cin mutunci da dodo).

Kifi 'tẽku-shaidan ": description

Skat yana da babbar lu'u-lu'u-dimbin yawa pectoral fins - a manyan samfurori da su ikon yinsa, kai bakwai mita. Su matsawa zuwa gaban shugaban fins, tsakanin wanda akwai fadi bakinka. The idanu suna located a tarnaƙi, kuma gills - a cikin irin ramummuka - kasa na shugaban. A baya na wani teku shaidan duhu (baki ko duhu-toka-toka), ciki haske. Kuma shi ne wajibi watsi aibobi. Abin lura shi ne cewa yawan da wuri na tsananin mutum - kamar yatsansa a cikin mutane. Amma ga nauyi, da nauyi na manyan samfurori wani lokacin kai biyu da rabi ton na ...

Rayuwa a cikin teku,

Abin da babu gaya abin da zai yi tsoro labaru ko ƙirƙira shi, kifi 'tẽku-shaidan "eats kamar kifi Whale - plankton da kananan crustaceans. A saboda wannan dalili, ta bakin sanye take da wani musamman na'urar for ottsezhivaniya abinci kunshi gill faranti. Ganin size of manta haskoki, shi ne ba abin mamaki ba cewa ta an tilasta ci kusan ci gaba.

Halitta makiyan wadannan halittu suke kisa Whales da kuma manyan kifayen teku. A cikin manya da suka kai farmaki kawai a lokacin da suka kasance marasa lafiya da suka ji rauni, amma ga kwiyakwiyanta farautar rayayye.

Saboda da babban yankin na kifi-shaidan jiki (photo taimaka maka ka duba girman da mazaunan ruwa shafi) yau da kullum "shi ne" a kan wata babbar lamba na parasites .. Kwayoyin cutar, protozoa, algae, da dai sauransu Wannan zai iya zama wata babbar matsala, saboda su ne dako (da kuma wani lokacin pathogens) mai fadi da iri-iri cututtuka. Duk da haka, da kifi 'tẽku-shaidan "rigakafi daga bũlãlar m bi da kifi-cleaners cewa suna cizon da ta duk da yawa, ciki har da" tsaftacewa sabis "da kuma a cikin bakinka, wanda a lokacin" hanyoyin "ke rike da wani bude gangara.

Ba kamar mafi teku kifi, manta haskoki - mazaunan daga cikin manya ruwa yadudduka. ba su fada ba, a babban zurfin.

haifuwa mantas

Domin procreation giant stingrays iyo zuwa tekun na Mozambique. Kiwo kakar suna da shi ne a watan Nuwamba. A wannan lokaci, akwai za a iya lura da dama daga 'yan jinsin' tẽku-shaidan ne. " A bayanin da courtship, bayar da masana kimiyya da dama, oceanographers kuma mai son iri iri, ya bayyana wannan tsari a matsayin kyau sosai gani. Maza bi dukan procession ya shirya don juna biyu da mace, kuma a high gudu, ba kullum halayyar da alkyabba. Mace "teku shaidan" samar daya kawai zũriyarsu. sightings tagwaye ne musamman rare. A matakin farko bayan Hatching baby ne a cikin uwar da kuma ciyar da sarauta jelly. Bayan haihuwar da kifi 'tẽku-shaidan "a tsawon, shi yana da mita da kuma kwata da kuma weighs game da goma kilo. Jariri a ko'ina haka uwar. mace sababbu sakamakon a zuriyarsu - idan akwai katsewa na biyu da uku da shekaru.

hatsarin karewa

Kamar yadda aka ambata a riga, kifi 'tẽku-shaidan' tsanani halitta makiya yana. Amma m mutumin da ita. Nama da hanta na marine rayuwa suna dauke da wani dafuwa matuqar wahala qwarai, amma kasar Sin sun kuma an yi amfani da ko'ina a cikin magani. Shi ne da Sin masunta rayayye lalata kifi-shaidan, ya zo a can a watan Nuwamba zuwa Mozambique Coast. Ganin yadda sannu a hankali, wata katuwar stingrays riɓaɓɓanya, da kuma cewa shi ne wurin da ya zaɓa su zuwa Dede, shi za a iya bayar da hujjar cewa har sai da ruwa a kusa da Mozambique zama halitta reserves, da barazana da wargajewa manta haskoki bace.

Riddles "teku-shaidan"

Duk da cewa kifi 'tẽku-shaidan "An yi karatu a baje, ba duk ta asĩri saukar da masana kimiyya. Da farko, babu wanda zai iya ce dalilin da ya sa suka Brac kusa Mozambique da kuma inda ya yi bayan. Aiki jarrabawa: wadannan haskoki ne inherently rani, da kuma kawai "tafiya" a kan? Arya.

Babu kasa a asiri ne su al'ada na tsalle daga cikin ruwa da kuma splashing marmaro plummet baya. Sauran masana kimiyya sun sa a gaba a cikin wannan girmamawa da dama versions:

1. Irin wannan tsalle - ɓangare na al'ada da courtship.
2. Tare da taimakon wani jiki na ruwa bugawa da kifi 'tẽku-shaidan "cike da kananan mazaunan.
3. Saboda haka, dabba samun kawar da m parasites.

Wanne jarrabawa daidai ne, kuma dõmin ta kasance, zai zama sananne a nan gaba, ba shakka, idan bil'adama da dabba ba zai fassara a cikin category na bitattu.