Baleen Whales (photo). Yadda yawa hakora a baleen Whale?

Baleen Whales (photo za a iya gani a cikin labarin) - shi ne daya daga cikin na zamani suborders na cetaceans. Suna yin gõri da ta size, juyin asalin da kuma salon rayuwa. Lets koyi game da manyan dabbobi na duniya a more daki-daki.

detachment na Cetaceans

Wannan shi ne wani babban rukuni na dabbobi masu shayarwa da ya hada da mafi girma daga cikin wakilai daga dukan ajin. A yau, akwai 38 danginsu, a hade cikin biyu suborders: Baleen da toothed Whales (mistakotsety da odontotsety). Wannan Pet m, cikakken saba da rayuwa a cikin ruwa yanayi. A kimiyya sunan naúrar zo daga Girkanci da nufin "dodon ruwa". Wannan ba abin mamaki bane, saboda Whales - mafi girma dabbobi masu shayarwa a duniya. Sun modified a streamlined fusiform jiki, m fata da kuma wani lokacin farin ciki Layer kitse a ƙasa. Yana kare dabba daga hypothermia. A ci gaba da Hind wata gabar jiki atrophied, da kuma gaban juya a cikin wata katuwar fins.

Baleen Whales (toothless): general halaye

Suborder hada da hudu iyalansu, kunsha na 10 jinsunan. Wannan humpback, blue, bowhead, kudancin, Dwarf, m Whale, filafilin kifi Whale, sei, Bryde ta Whales da kuma kananan. Daga baya a cikin labarin da muka koya game da wasu daga cikinsu a cikin mafi daki-daki. Mai wakilan da suborder - cosmopolitan da tartsatsi a duniya teku ruwa. A cikin tambaya na yadda da yawa hakora a baleen Whale, wanda zai iya amince ce: babu. Dukan su ne a cikin tsarin juyin halitta halartar gagarumin canje-canje da kuma zama na musamman jaraba faranti. Suna da ake kira "whalebone" cewa kafa tushen da suborder sunan. M samuwar gumis shirya transversely daya bayan daya a kan jinkiri na 0.3-1.2 cm. A saman da ciki gefuna da kowane farantin an raba cikin dogon, bakin ciki bristles. Wannan tsarin da muƙamuƙi inji yayi kama da sieve ko tace. The dabba ingests manyan taro na ruwa da kananan kifi, plankton da crustaceans sa'an nan tace da shi.

Yadda yawa hakora a baleen Whale ya unknown a zamanin da, amma gaskiyar abin da suka kasance - yana da wani indisputable gaskiya. Ya tabbatar da gano burbushin jinsuna a shekarar 2011. Kananan kit (har zuwa 3 m, a tsawon) yana da manyan da kuma hakora masu kaifi. Wannan ya tabbatar da cewa zamani iri sun zo dogon juyin hanyar da zamani tsarin da m muƙamuƙi na'ura.

Blue (ko blue) Whale

By wannan marine dabba a cikin daban-daban formulations amfani kawai daya epithet - "mafi." ta jiki shi ne tsayin 33 mita, da kuma nauyi ya wuce 150 tons. Shi ne mafi girma dabba a cikin zamani duniya, kuma tabbas dukkan taba rayuwa a duniya. Lokacin da irin wannan babban size blue baleen Whales (hakora wanda sun zama ɓullo da tace inji) yana m fushi, kuma ku ciyar na musamman kan plankton. ta jiki ne siririn, elongate, tare da babban shugaban, a tsawon 27% na jimlar jiki. Blue Whales ake dogon-rayu: by daban-daban kiyasin na kimiyya, da masana su talakawan lifespan - 40-90 shekaru. Wannan irin cosmopolitan, ta tarihi mazauninsu maida hankali ne akan kusan duk tekuna. Yanzu za su iya a samu sosai da wuya, saboda a wani lokaci, sun kasance a kan gab da nau'i nau'i da mutum.

bowhead Whale

Baleen Whales wannan nau'in - mazaunan sanyi ruwan Arewa Hemisphere. Su ma quite m size - har zuwa 20 mita a tsawon (mãtan) da kuma 18 m (namiji) yin la'akari daga 75 zuwa 150 tons. A nutse zuwa mafi girma zurfin (har zuwa mita 200) da kuma ba zai iya taso kan ruwa game da minti 40. Suna zaune wani talakawan na game da shekaru 40. Duba ba an yi karatu sosai, tun lokacin yana da wuya a gudanar da kallon su a cikin matsananci yanayin damina. Shi Ciyarwar a plankton.

Humpback Whale (dogon-m Whale)

Its sunan da aka zamar masa dole ya samar da dabbobi masu shayarwa dorsal filafilin kifi-kamar hump halayyar da kuma al'ada shin idan kewayawa. A cikin farko hoto na mu review shãfe haske halayyar humpback Whale tsalle daga cikin ruwa. Wannan shi ne wani fairly manyan Whale tsawon 14.5 m, a kalla 17-18 mita da kuma yin la'akari 30 ton. Daga cikin sauran Whales daban-daban jiki siffar da launi, godiya ga wanda yana yiwuwa ko da rarrabe jama'a. Mustached humpback Whale da aka samu a dukkan sassan duniya ta teku, ko da yake sparse alƙarya. Ya fi son ya zauna a cikin teku da kuma ga ~ ar teku, amma a lokacin hijirarsa iyon to zurfin. A jinsin yana da wani matsayi da m.

filafilin kifi

Yana daukan na biyu wuri bayan da blue Whale a size da kuma nauyi a cikin dabbobi (hoton sama). Wadannan iri biyu hadawa a kusa da dangantaka. Wani lokaci akwai hybrids. Mu yanzu sani biyu subspecies na filafilin kifi Whales: Arewa Atlantic da Antarctic, a yarda da wanzuwar wata uku, a cewar wasu masana kimiyya. Mutane da suke zaune a Arewa Hemisphere, a} uruciyarsa isa a tsawon 24 m, da kuma mazauna Kudu - daga 20 zuwa 27 m, wannan baleen Whales sabanin congeners readily zaune a kananan kungiyoyin (6 dabbobi) .. Finval zurfin dives (250m) da kuma gudãna da sauri, accelerating zuwa 50 km awa, da ruwa iya gudanar ba tare da iska har zuwa 15 minutes. Bugu da kari ga mutum, da na halitta makiya na Whale ba. A halin yanzu, duk da haka, filafilin kifi Whale ne rare da miyagun.

sei

Namun dajin daga iyali rorquals cewa tsiro zuwa tsawon 20 mita, yin la'akari game da tan 30. A rage cin abinci kunshi yafi na makaranta kifi da crustaceans (ciki har da saithe) da kuma cephalopods. Baleen Whales rayuwa ga wani talakawan shekaru 60 da shekaru. Sei da kurme zuwa zurfin har zuwa uku da ɗari mita da kuma iya zasu tafi tare da iska har zuwa minti 20. Active wargajewa wannan nau'in fara bayan da rage yawan blue Whales da kuma filafilin kifi Whales. A shekarar 1986, kama kifi a gare shi gaba daya dakatar.

Bryde ta Whale

Kit talakawan darajar up to 14 m tsawo da kuma yin la'akari har zuwa 25 ton. Shi yana da wani elongated jiki ne duhu launin toka da 'yan haske aibobi (ga photo). A rarrabe - shi ne uku rabu ginawa-up a saman shugaban. Sun fi son su rayu a cikin nau'i-nau'i, ko kananan kungiyoyin. Fiye ko žasa zaunar view hijirarsa takaice da kuma dogara ne kawai a kan gaban abinci (yafi kifi, squid). Baleen Whales ne quite na kowa a dukkan manyan tekuna.

toothed Whales

A zamani suborder hada da 10 da iyalansu, ciki har da dabbobin ruwa, monodontidae, kashalotovye, Guinea aladu da kuma kama. D. The bayãnin hukuncin alama ne gaban a kan hakori muƙamuƙi. Wakilai daga cikin toothed Whales za a iya daukan yara, ciyar, yafi a kan kifi, cephalopods, kuma ko da sauran marine dabbobi masu shayarwa. Kusan duk wani nau'i na girman baya zuwa gabata suborder, su ne mobile da suke da kyau kwarai swimmers, tare da togiya daga maniyyi Whale. Ya ke tsiro zuwa 20 m, a tsawon kuma Tã yi game da 50 ton. Hoton na wani garke na rayuwa, fi son cigaba da zama a babban kungiyoyin.

Wani m wakilin toothed Whales ne da kisa Whale (hoto). Cosmopolitan jinsunan, predator da ciwon da fadi da kewayon abinci, kowane alƙarya fãce, ya ƙware a wani kifi (msl herring a cikin Norwegian Sea).