Sockeye. Kifi-matafiyi kuma ta girma hijirarsa

Giant baka miƙa arewacin Pacific bakin tekun na Hokkaido ta cikin Kamchatka Larabawa, da yawa kananan arewacin tsibiran, Alaska da kuma kusan zuwa rana California. Yana da yake a wadannan majestic, kuma mafi yawa zauna cikin matsananci ruwan sockeye kifi - kifi na m kasuwanci breeds na da kifi iyali. Its asali ya ta'allaka ne da cewa shi a shekara a tsarin kula da spawning lokaci, a cikin biyayya ga da iko ilhami, iyon 'yan dubu mil daga matsananci. A yawa na mutane ko ya mutu a kan wuya hanya, ko dama a kan "cin abinci tebur" gandun daji ta bambancin da yara wanda a zahiri shirya wani liyafa, saduwa da babbar Shoals na ja kifi.

Sockeye kifi - irin kifi nassi. Shi, kamar duk sauran iri Pacific kifi, sa dogon, m da m hijirarsa a mulki. Na sabo ruwa a cikin m mazauninsu m da sanyi ruwan Arewa Pacific domin ciyar, bayan wanda ta kõma, zuwa spawn akwai, inda shi ya fara ta rai sake zagayowar. Saboda ta high calorific darajar da na kwarai dandano, shi ne mai muhimmanci da bangaren na mutum rage cin abinci. Kuma a kan sockeye kamun kifi tana kasancewa ne musamman aiki. Wannan shi ne wani hadari kasance madãkata ga ta a lokacin da girma na hijira.

A Asiya, wannan kifi spawns yafi a cikin kõguna na Kamchatka, Chukotka, kuma ma, albeit a karami yawa, Amirul da Aleutian Islands. Bugu da kari, sockeye kifi - kifi tare da "Rasha dan kasa" kamar yadda wani dubun daga wadannan wakilan da na ruwa duniya zauna da shi a cikin gida koguna da yankin ruwan da ruwan tekun Pacific. Ga ta babban kiwo ƙasa - Kuril lake, wanda aka located a kudancin ɓangare na Kamchatka. Wannan tafki da aka kafa ta m tectonic tremor game da dubu takwas da suka wuce. A kowace shekara zo nan don spawn fiye da miliyan shida nerok. Native kandami suka sami a kan zafin jiki halaye, da sinadaran abun da ke ciki na ruwa, ta wari da kuma ko motsi na hasken rana faifai. Sockeye kifi - kifi tare da daidai ɓullo da damar iya yin komai don wuri da fuskantarwa.

Ta Amirka dangi, da kore ta wannan inexorable ilhami Yunƙurin a waterways na British Columbia da kuma arewa-maso-gabas Coast na Amurka, tare da hanyar shawo kan m sashen kogin da matsananci waterfalls. Irin wannan yunkuri da na yanzu shi ne ba da sauki ba da sockeye. Mafi yawa sun kawai da ja jiki ta hanyar da a cike da laka kasa, tare da wahala yin masa hanya ta cikin sahu na su kusantar dangi, scraping tarnaƙi, tearing scaly faranti da ƙege da daban-daban da cikas, amma tare da wani m taurin motsi zuwa wani wuri inda za su rufe da'irar rayuwa juyin halitta. Irin wannan hadaddun tafiya har da manyan waterways da kananan creeks, shawo kan babban yawan m sashen kogin da kuma waterfalls ne mafi muhimmanci a cikin rãyuwar wadannan halittu. A mafi tsawo ne mai hadarin gaske tafiya yana kawai a kan hanyar zuwa tafkin Kuril inda kifi spawning sockeye a cikin lokaci daga karshe shekaru goma na Yuli sai farkon watan Fabrairu.

Har ila yau sosai gagarumin m metamorphosis samu ta hanyar kifi jiki a lokacin da kasada tafiya. Ta yaya daina ci, don haka da cewa ragae ciki, hanjinsu da kuma hanta. Active aikin ci gaba ne kawai tare da sauran pituitary gland na ciki mugunya. Tara mai adibas da kuma daban-daban na gina jiki ne gaba daya mayar da hankali a cikin haihuwa tsarin. Har ila yau, launi canje-canje da kuma ta jiki. Silver, duhu blue faci a kan mayar da (a cikin wani al'ada lokacin), a lokacin da spawning kakar, ya zama jini-ja launi. Kifi sockeye (photo nuna wannan ban mamaki disturbances) saboda wannan m canji da wani sunan - ja.