The guru mhuka nyika: yebhuruu hove huru

Mhuka pakukura mumakungwa, zvitema hove huru kusvika yakakura zvechokwadi kukura - kusvika 33 metres nokuyera Hofori aya matani anopfuura 150. Enzanisa zvakaenzana anoyera 50 African nzou. Nokuti rinoita upenyu hwemhuka kunodiwa ose zuva macalorie miriyoni imwe. Blue Whale ndohwaJehovha baleen hove huru (genus hove huru), ayo chairwo Kudya - iri hove duku, crustaceans, Squid, plankton uye krill.

Kuwana kuti chitsama zvokudya nyore kana uchiziva apo yakawanda crustaceans. On vanonzi "kupa minda", apo mukuru wevasungwa pamusoro plankton, zvinokwanisika kuona zvakawanda hove huru, asi anopfuura 3 vanhu vari muboka, ivo kazhinji haana inounganidzwa.

Blue hove huru yakatekeshera munyika mumakungwa kubva kweArctic kusvika Antarctic, apo kusiyanisa subtypes akawanda:

• rwokumusoro;
• rwezasi;
• pfupi;
• Indian.

Mhando mbiri dzokutanga vanosarudza unotonhorera mvura mugungwa, uye Pygmy uye Indian anowanikwa munyika dzinopisa mumakungwa. Vanorarama murenje mararamiro, mhuka idzi vakava kwavowo yepakutanga dzokukurukurirana. Dzimwe nguva vakuru vanoumba mapoka maduku, kunyange kunyange zvakadaro nzanga duku, vanoramba pachavo.

Big yebhuruu Whale haana inonyatsoshanda kunhuhwidza, uye akapotsa kunyimwa kuona, asi iye Rinotarisira kukurukura kuburikidza "nokuimba." Yainyoreswa ruzha varume panguva kuberekesana mwaka. rwiyo urwu yakafanana zvikuru zvinotyisa ungudzai kuti rinogona kunzwika ari chinhambwe 1600? km. Vakadzi, zvakare, dzimwe nguva kutaura, asi chete naye mwana. Maererano masayendisiti, zvitema hove huru inoongorora machemero, nekuti ichi ndicho chete nzira yokuti kutaura kunze nyika. Uyezve, cherechedza unyanzvi uye ungwaru mhuka idzi.

rutoto mwaka kunoitika ose makore maviri. On aitaridzika vana zvinoda 10-11 mwedzi. Aberekwa hadzi mwana zvokudya nayo mukaka 7-8 mwedzi, panopera iyi, jaya shato huru anoyera pamusoro 20 matani uye kureba kupfuura 20 mamita. Panguva ino, ganda mwana atopiwa mwoyo zvomumvura tupukanana. Kuramba tsvakurudzo akataura chinokosha nhamba yomunyika uye kwokunze tupukanana whale. Paaigara muminda dzichichera mhuka mukuru wakafukidzwa diatoms, izvo masayendisiti vakaverenga 31 mhando shato huru pane chimwe chete. Kubva ganda ichi mhuka iri tsvuku-mutema mu ruvara, dzakawanda mollusks vanogara panzvimbo imwe, pamusoro muviri pemhuka zvakanaka.

Kwemakore, zvitema hove huru vakaurayiwa nemunhu. Nokuti dzokubudisa pamusoro whalebone, mafuta uye dzakaonda vanhu Vakaronda Hofori izvi, kuderedza Vagari ka100. Pakutanga kwezana remakore rechi20, nyika inondimukira hove kwakaita kuti chii zvino nyika haina kupfuura 1500 vanhu. Zvakafanotaurwa masayendisiti Zvinogumbura: nemaonero hamugoni kuponeswa kubva kunyangarika pachiso Pasi. Munguva North Atlantic panguva havasi vanopfuura 100 vakura hove huru.

kutsakatika kwavo anoramba nokuda nokurasa mugungwa, idonhe mafuta uye kushingaira kupindira kwevanhu zvakasikwa. Kunonoka dzinongoitika kukura kuchititadzisa zvakasimba resumption chavagari, apo zviri mu chakagadzirwa ezvinhu hazvibviri pamusana kukura mhuka.