Sea dabba teku Otter: bayyanar, halayyar da kuma rage cin abinci

A arewacin latitudes sanaki, mãmãkin kam marine dabbobi - teku otters. Its musamman da suka bambanta qarya a cikin gaskiyar cewa, a matsayin wakilin dabbobi masu shayarwa, ya fi son na cikin ruwa yanayi ƙasar. Kuma wannan ba kawai oddity muhimmi a cikin irin wannan. Bari ta samun Masana su kusa.

Description of jinsunan

Da farko, da yawa aka jayayya game, ga abin da iyali ne da mulkin Otter. Otter shi ne kusa da dangi, amma a yawan takamaiman bambance-bambance tilasta masana kimiyya to shakka karshe hukunci. A ƙarshe suka amince kan cewa tẽku ranked Otter da musteline, amma gano su a matsayin mai raba jinsunan. Duk da haka, har wa yau, wasu na wadannan dabbobi suna kira "teku otters."

The sosai guda kalmar "Otter" ya zo daga Kuril Islands. Gaskiyar cewa yan unguwa da ake kira wadannan dabbobi Kalagia ( "dabba" a cikin Koryak). Daga baya wannan sunan da aka tsince Rasha dayansu, wanda sa'an nan ya ɗauke ta zuwa kimiyya al'umma. Ya kamata kuma a lura da cewa, a lokacin da masana kimiyya ya gano uku sub-jinsunan wadannan halittu:

• Al'ada ko Asian teku Otter.
• Northern teku Otter.
• Kudancin teku Otter ko Californian.

yankin

Yau za ka iya samun otters a arewacin latitudes na tekun Pacific. A mafi yawa kungiyoyin an same kashe bakin tekun na Kamchatka, California, Alaska, Canada da kuma cikin Aleutian Islands. Har ila yau, godiya ga kokarin da masana kimiyya na kananan matsugunai na wadannan dabbobi da aka bred a Japan da kuma a kusa da British Columbia.

A karshe yanki na teku otters ya yawa fadi. Amma saboda taro wargajewa da 'yan adam, a cikin XIX karni, da iyakoki da su gida muhimmanci quntata. Yanzu za su iya a samu kawai a cikin sama da aka ambata wurare, alhãli kuwa a baya sun shagaltar da kusan dukan arewacin tekun na tekun Pacific.

bayyanar

Bari mu fara da cewa talakawa, kudanci da kuma arewacin teku otters da wannan waje fasali. Su division dogara ne a kan mazauninsu, ba a waje ko zamantakewa da bambance-bambance. Saboda haka, wannan bayanin ne dace da duk nau'in.

Wannan shi ne wani fairly manyan dabbobi Cala tsiro zuwa shida mita a tsawon kuma Tã yi game da 25-35 kg. A duk da wadannan rabbai, shi ne daidai saba da wani ruwa rayuwa. Jikinsa yana da wani elongated siffar, tare da zagaye kananan shugaban. A wutsiya na dabba takaice: m a tushe da kuma bakin ciki a karshen.

Babban amfani da teku otters ne Hind kafafu, da kuma tattali da karfi webbing. Sunã halattar da karamin dabba da basira iyo da kuma nutse. Amma forelimbs suna hana irin wannan na'urar. Maimakon haka, suka kawo karshen tare da karfi da yatsunsu, a karshen abin da akwai babban teku Otter makamai - fika.

A Jawo na dabba shi ne quite m da kuma lokacin farin ciki. Saboda wannan, shi yana da kyau jure sanyi da kuma sanyi. Bugu da kari, cikin ikon excrete mai maiko a farfajiya na shida damar otters ci gaba da fata bushe ko yayin yin iyo karkashin ruwa. Amma ga launi na Jawo, ya fi na kowa ne da launin ruwan kasa mutane. Duk da haka, a cikin mazauna ne rare mutane da suka yi, ana haifuwarsu ne tare da dusar ƙanƙara-fari gashi.

hanyar rayuwa

Saboda haka, abin da ke da halaye na wannan dabba? Kalan mafi yawan su lokaci a cikin tẽku, lokaci-lokaci iyo fita a kan ƙasar. Kamar yadda aka ambata a baya, yana da duk abin da kuke bukata domin wannan: m Jawo, da farin ciki Layer na kitse da kuma iko kafafu, sanye take da membranes. More ban sha'awa shi ne cewa dabba ba zai iya kawai iyo kyauta, amma barci a kan ruwa. Don yin wannan, ya mirgina a kan uwa da baya da kuma zare jiki zuwa surface. Kuma zuwa ga tẽku sabõda wani share shi daga gaci, teku otters nade algae cewa bauta masa wani abu kamar wani anga.

Duk da m soyayya a cikin teku, da dabbobi na iya zama dogon isa ya zama a kan ƙasa. Mafi sau da yawa suna zaba a kan tudu a cikin sanyi weather, don haka bã su ciyar da yawa makamashi da kiyaye zafi a cikin ruwa na garin kankara. A lokaci guda dabbobi suna kokarin shirya kan m ~ ar teku. Wannan shi ne domin boye a cikin duwatsu a kan mutane. Bayan duk, mutumin shi ne babban makiyin teku otters.

Amma tare da dabbobi, suna sada makwabta. Suna sau da yawa samu a cikin kamfanin na like, walruses kuma ko da tsuntsaye.

rabon abinci

Wannan shi ne wani dabba na ganima. Kalan da basira preys a kan kifi da Shellfish, grabbing su ninkaya tenacious paws. Bugu da kari, ya likes kama teku urchins da crabs. Tare da latest dabba mike ta duwatsu: karfi makamai ba zai iya ciji ta hanyar da hakora, don haka ya raba shi da wuya abubuwa.

Hunt teku otters yafi lokacin da rana. Duk da haka, idan ya cancanta, sun iya tafi a search na abinci da dare. Duk da haka, a wannan yanayin, su ne mafi kusantar su scour da bakinta maimakon je ga ganima a cikin ruwa. Bayan duk, da susche ba su da hangen nesa - za su iya ƙidaya a kan mai kyau hanci.

A kan gab da karewa

Yau, teku otters aka jera a matsayin miyagun. Dalili kuwa mutum wawanci. A XVII-XIX ƙarni dayansu daga ko'ina cikin duniya tattaki zuwa arewacin latitudes domin samun mai muhimmanci da dabba Jawo. Saboda wannan, a farkon karni na XX da yawan dabbobi ya auku fiye da 80%, wanda zai iya haifar da da cikakken bacewar na jinsi.

Amfana Masu tsaya a kan lokaci carousing. Yanzu, yawan teku otters hankali ke sama. Duk da haka, da cikakken nasara ma farkon yi magana saboda dumamar yanayi nan da sannu zã fuskanci wannan hadarin tare da wani sabon, babu kasa hatsari matsala.