Me kuke kira wani kifi tare da wani dogon hanci?

Ruwa tare kifi paddlefish ne memba na iyali paddlefish, sturgeon detachment, ray-finned jinsunan.

Me kifi snook?

Har kwanan nan, masana kimiyya imani da cewa shi ne kawai hidima cire abinci daga kasa kududdufai. Duk da haka, kwanan nan karatu sun nuna cewa hancinsa paddlefish dama kilomita iya jin m da kifi da kuma sauran mazaunan ruwa, da kuma taimaka wajen buga da bi ganima.

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Kifi da wani dogon hanci, sunansa paddlefish, - a manyan babban kifi yin la'akari daga 70 zuwa 80 kg, kai wani tsawon 200 cm razanarwa m bayyanar ta dora hancinsa (hanci-filafili) ko rostrum -. Elongated gaban kwanyar kashi. A hanci yana da tsawon daidaita daya bisa uku na tsawon dukan kifi. A kasa na hancinsa ne kananan idanu. A kan ƙananan surface na rostrum ne sashen touch - kadan gashin baki. The matasa tsara yana da babban yawan kananan hakora masu kaifi.

paddlefish jiki ba tare da Sikeli, gaba daya tsirara. A launi na baya ne duhu launin toka a kan ciki da kuma a kan sasanninta, wani m inuwa. A baya akwai wani guda filafilin kifi, canja kusa zuwa ga raya sashi na jiki.

Paddlefish rayuwa daga 20 zuwa shekaru 30. Duk da haka, daga cikinsu akwai, da dattawan suka kai ga samun da shekaru 55 da shekaru.

mazauninsu

Kifi da dogon hanci ne sosai aiki da kullum a motsi. Kamar yadda a cikin aikin gandu, kazalika da a mafi yawan Kogin Mississippi a Amurka samu paddlefish, kuma a Bugu da kari, shi za a iya samu a cikin koguna, wanda daga ƙarƙashinsu a cikin Gulf of Mexico.

Yana zaune a zurfin game da uku mitoci daga shoreline. A cikin bazara da kuma bazara na paddlefish kasancewa a cikin ruwa ta surface, zai iya sa fita daga gare ta tsalle. A high tide kifi daga cikin lake, kuma ya dawo bayan komowar ruwa ruwa.

abinci

Kifi da dogon hanci - kadai wakilin sturgeon, ciyar a kan phytoplankton da zooplankton. Har abada bude babban bakin tara paddlefish samar: algae, kwari, tsutsotsi, larvae, plankton. Da zarar a bakin hanyar da gill net dogon gashin, plankton daftarin sa'an nan ta aika wa ciki. Sami abinci paddlefish via rostrum, ya Picks sama vibrations kamar eriya na lantarki filin, wanda haifar da kananan kwayoyin a cikin wani tafki.

haifuwa

Kafin farkon spawning a cikin bazara lokaci, kifi tare da wani dogon hanci da yake faruwa Pack kuma tafi cirewa domin zabin da kiwo shafukan. A tabkuna aka fĩfĩta shafukan stony ƙasa a zurfin biyar zuwa shida mita ruwa a zazzabi na 16 digiri. Spawning fara a Mississippi a cikin marigayi Afrilu.

The mace kayansa mãsu qwai ne manyan, wanda zai iya isa diamita na 3 mm da kuma lambar dabam daga 80 zuwa 250 dubu guda. A rana ta goma larvae bayyana. Sun dabbobi da sauri ya zo tsawo da nauyi ta hanyar abinci mai gina jiki. Bayan makonni biyu, da hanci ya fara girma-filafili. A wani shekara da suka riga shi da jiki tsawon game da 70 cm. Mafarki matasa harbe har zuwa 5-10 shekaru. Maza girma da sauri fiye da mace. Propagate paddlefish fiye da shekara. A jinkiri tsakanin spawning iya zama daga 4 zuwa 7 shekara.

Fishing, noma

Kifi da dogon hanci (photo kasa) - a abinci da kifi. A farkon karni na karshe ta shekara-shekara gumãkan wuce 600 tons. A duniya ta yau, saboda da m cin gaban masana'antu, gina dams kuma, kamar yadda wani sakamako, ruwa gurbatawa, da Amurka gumãkan sun ragu sosai. A cikin 'yan shekaru, yunkurin da ake yi wa wucin gadi haifuwa paddlefish.

A 70-ies na XX karni a kama kifi tattalin arzikin da Moldova da kuma yunkurin acclimatize paddlefish aka sanya a cikin Krasnodar yankin. A jiragen sama qwai tsĩrar da farko a cikin Tarayyar Soviet, sa'an nan a kan kifi gona. Yana lura da wani ban sha'awa cewa kifaye sun isa yawa a baya a bauta mafarki. Mãtan suna zuwa spawn a shekaru na shekaru biyu, da kuma maza - shekara guda. Kuma yanzu paddlefish nasarar bred a kifi gonaki Kostroma da Voronezh yankuna a Primorye. Yana yiwuwa farautar masu zaman kansu kandami. Average tsutsa da ake amfani da koto. Udyat a kan Feeder, kasa kaya.

Kifi da wani dogon hanci, paddlefish, tare da matsayi na namun dajin da aka kunshe a cikin jerin na kasa da kasa Red Littãfi.

Kifi kunshe ne a cikin wucin gadi tafkunan da ciyayi da kuma sludge zuwa zurfin mita biyu da kuma wani yanki na game da 70 kadada. Ruwan zafin jiki ne kiyaye at 22-25 digiri. By da shekaru 2-3 shekaru paddlefish samun nauyi daga 2.5 zuwa 5 kg. Daga daya hekta horar game da 100 kg a wani matsakaita nauyi na 2 kg kifaye.

Paddlefish nama ne mai arziki a cikin alama abubuwa, m acid da kuma bitamin. Qwai da nama suna da tsada. Black caviar a inganci da darajar ne ba na baya zuwa sturgeon. Kifi yana da kyau kwarai da dandano da ake amfani da shiri na da yawa dafuwa: Kebab, miya, sturgeon, tserar.

Kifi da kaifi dogon hanci

Istiophoridae (Marlin), - kifi tare da wani ban sha'awa tsarin muzzle gudu a karkashin ruwa tasowa har zuwa 110 km / h. Mashi-dimbin yawa hanci, mai tsawo, na bakin ciki. The biyu dorsal fins ne kusa da juna. Juya kifi a duhu blue, yayin da tarnaƙi ne silvery ya dafa. Iko jiki, dan kadan flattened a tarnaƙi. Ci Marlin tuna, crabs, jatan lande, benthic kwayoyin.

Maza blue Marlin hudu sau karami a cikin nauyi fiye da mace. Don haifa Marlin shirye na shekaru uku. Spawning kifi ke daga Agusta zuwa Nuwamba, wani lokacin ninka sau hudu da kakar. Haihuwa ne high, har zuwa miliyan 7 qwai. A larvae ci gaba da sauri sosai, a kowace rana zai iya girma daga 1 zuwa 16 mm. Ƙaramin tsara yana da wani blue color a kan mayar da fari a kan ciki. Wutsiya filafilin kifi da kuma haske blue.

Me kuke kira wani kifi tare da wani dogon hanci?

Aka sani wakilan kifi tare da wani dogon hanci amma paddlefish ne:

• Katon kifi - predator yin la'akari har zuwa 400 kg kuma wani tsawon fiye da 3 mita. Hanci yayi kama da mutuwa fama da makamai -. Sword tsawon game da 1-1.5 mita ya hanci kifi sauƙi hudawa oak jirgin da kuma wani karfe kauri daga 2.5 cm, kuma da kanta wuya ji rauni. Shot Power-takobi hanci ne game da 400 tons.
• Kifi-sarewa yi kawaici a cikin Indiya da Pacific teku, a cikin Bahar Maliya. A hanci ne reminiscent wani m kayan aiki. Domin fuska da launi canji. Sannu a hankali gabatowa da ganima, sa'an nan grabs ta.
• Sawfish - mazauni na Pacific da kuma Atlantic teku, da Bahar Rum. Weight kifi ya kai 300 kg, da kuma tsawon na jiki - 5 mita ko fiye. Hanci-saw ½ tsawon na Babban jiki predator makami kama ganima. Wasu jinsunan kifaye ne iya haifa ba tare da sa hannu a cikin maza.