Beluga - hove kuti akasuruvara

Beluga - hove, inova kupfuura chikara vose vanogara madziva pamwe nemvura yakachena. Maererano zvinyorwa, pamazuva akare, pane specimens yairema matani 1.6. Zvino vamwe vanhu vanosvika matani 1,2. Masayendisiti zvinoratidza kuti beluga anogona kurarama kwemakore anopfuura zana. Panguva iyoyowo wakarebesa pamutemo hwakanyorwa lifespan wevamiriri idzi Sturgeon aiva nemakore 46 okuberekwa. Sezvo ari 70 remakore rapfuura, paavhareji kureba vakadzi vakange vabata pamusoro Volga, akanga 267 cm uye uremu - 142 makirogiramu. Similar prices vanhurume equaled 221 masendimita uye 81 makirogiramu, ukuwo. Mukuwedzera, hove rakasiyana nemamwe marudzi ake unopinza mhuno, pfupi uye gobvu cylindrical muviri. Wandisa muromo runopoteredza muromo hombe, utambanudzire yose upamhi musoro uyu, sezvo beluga. Hove, riri pasi photo, tichiregeredza rokuti "munhu" ane zita remadunhurirwa rokuti "ndakasuruvara." Rinoreva Globe akasiyana uye vatungamirire zvakasiyana nemararamiro munzizi huru. Somuenzaniso, muna Volga River kunodzora yechando marudzi kuti kupedza chando ari mumakomba apo Urals vazhinji dzichitama kuti zviri kukonzera hove ndizvo chitubu zvirimwa.

nzvimbo

Archaeological uchapupu hunoratidza kuti hove beluga kwakaitika nembiya iri Adriatic, ivo Black, reCaspian uye Azov mumakungwa uye vapinda mumuromo Nzizi dzakadai Volga, Kama, Oka, Sheksna, uye vamwe vakawanda. Pane manotsi pamusoro hove nomunhu specimens zvipenyu ichi muna Moscow River. Zvino nzvimbo ndeyevanyori anenge rezasi Hydroelectric madhamu. Panyaya kuGungwa Azov, uye ipapo iye akanyangarika. Pasinei zvose, beluga - hove kuti anogona kushambira kure. Pakati nyanzvi vari pfungwa kuti daro ichi kunobva ukuru mhuka, uye yakakura zviri, ndipo spawns. Pane zviitiko apo dzimwe specimens anosvika Mediterranean, Adriatic uye Black makungwa. Maererano zvinyorwa, muna 1850, ari beluga abatwa kunharaunda Italian guta Venice.

chikafu

Beluga - hove inotanga kundovhima murwizi ndichinemi Fry. Panguva ino, zvakanga kunyanya kufarira goko duku nhete goko, saka majaya zvinonyanya kusimbiswa mune estuaries. Kudya beluga mugungwa kazhinji ndivo mudzanga butts, bakayawu, sprat, Pike, herring, mussels nezvimwe zvisikwa. Mune ura dzimwe hove ukabatwa kweGungwa reCaspian kwemarudzi kuwanikwa kunyange mwana seal. Regai shure kubva kudya pachavo juveniles dzavo beluga nezvimwe Sturgeon marudzi.

kubereka

Vanhurume akagadzirira ruchikonzera nemakore anenge gumi nemaviri, asi mukadzi, gare gare - pa gumi namatanhatu. Beluga - hove, izvo kuita kuti pave zvinoitika yepamusoro mafashamo. Panyaya iyi mvura tembiricha iri kutanga kwekupwanyiwa yayo 6-7 inegumi. For deposits ose caviar kunge matombo, mvura yakadzika (kubvira 4 kusvika 15 metres) pamwe nokuita kunokurumidza kuitika. Ose chete hadzi zvichienderana saizi kwavo, vanogona nonotsa mazai kubva 200,000 kusvika mamiriyoni 8. Dzavo embryo kumwedzi rinovapo kwemaawa anenge 200 pasi mamiriro mvura kuti ane tembiricha vanenge 12 inegumi. How akura hove uye furaya pakarepo pashure zviri kukonzera, kuwira mugungwa, pasina kumbomira murwizi. Hazvibviri kuona chokwadi chokuti kubereka zvikasaitika ose gore.