Ratan - kifi, da barin wani damar fafatawa a gasa,

Har 'yan shekarun da suka gabata da suka wuce saduwa da kifi Rattan a Rasha da shi ya yiwu ne kawai a cikin Far East. Yau anglers daga ko'ina Rasha suna firgita, saboda a cikin 'yan qasar ruwan bayyana Rattan - kifi, yanã cin kewaye. Wadannan unpretentious mutane na tsaye sabo ruwa unusually salon, da jure duk da irin wahalhalu da Rasha sauyin yanayi da kuma ci caviar sauran mazaunan tafkunan da tabkuna.

Kifi Rattan: description

The most wakilan da tsawon na 30 cm, da ƙaramar size of fara tasawa - 14 cm waje Rattan -. Kifi unremarkable. Shi yana da wani elongated siffar kama wani makãmashi. Coloring na canzawa a cikin ma'abota kakar da launi sikelin ne mai haske baki, a cikin sauran lokacin da aka mamaye da launin toka, ruwan kasa da kuma kore sautunan.

M jiki, tare da babban shugaban. A baya za ka iya ganin fakaice spots, kuma irregularly dimbin yawa tsiri. Daban-daban Rattan kifi photos an gabatar da kasa, ta babbar bakinka. Shi ne wannan disproportionately manyan baki Perccottus glenii wakilan ba da sunan Rattan. A yawa na kananan amma kaifi hakora taimako don crack saukar a kan ganima.

rai yanayi

A haifuwa daga wadannan yara sun farko ruwa na Amur. A cikin karni na 19th innocuous a duban farko, da ƙananan kifaye da aka shigo da a cikin tsakiyar Rasha, saki a cikin koguna Bitrus da kuma sauran birane. Kuma godiya ga m lamarinsa na Rattan brood haka cewa ya zama kau da sauran kifi daga tafkunan. Wannan shi ne saboda cewa tushen da abinci da qwai zama m jinsunan kifi, kifi soya, tadpoles, larvae, kwari, mollusks. The sosai gaban da shara, kifi a cikin kandami ya ce wasu nau'in tababbe zuwa nau'i nau'i. Harm ne dukan kifayen fauna.

Rabu da mu da Rattan ne da wuya sosai, saboda wannan sako kifi ne sosai unpretentious ga yanayin mazauninsu. Domin tsira da fari, Rattan binne shi a silt, kuma da farko na ruwa sama sosai da ci gaba da harshen damo kamar yadda idan babu abin da ya faru. A misãlin ruwan wani predator da winters a cikin kankara. A ruwayen da matalauta abun ciki na abinci toya gudanar da aiki da cin naman mutane, da cin su karami takwarorinsu.

A ra'ayi na masana kimiyya da kuma tattalin arziki 'kintace

Domin dalilin cewa Rattan - kifi, lalata kifi fauna, ta samun shiga cikin manyan koguna da tabkuna suna dauke da masana kimiyya a matsayin gurbatawa. Shi ne ba ko da yaushe laifi da mutane. A qwai sau da yawa suna hawa da migratory tsuntsaye. Da dama qwai ne isa zuwa 4-5 shekaru tafi dukan abubuwa masu rai a cikin kandami. Gasar kifi-firebrands iya isa Pike, perch kuma catfish. Duk da haka, shekara-shekara kudin na rage yawan kifi ƙaruwa. Masana sun ba da shawarar shirya predator a wucin gadi tafkunan, Rattan kifi da sauri rabu da gasar.

Amma ga kananan ado tafkunan ne babu kyau view. Mutane da yawa anglers ce cewa Rattan lafiya ciji, musamman a cikin hunturu. Domin koto za ka iya amfani da wani koto: tsutsotsi, fara ne kawai, nama. A dandano na kifi ba sharri, amma shugaban ya mamaye wani babban bangare na jiki, da kuma ciki ne sau da yawa cike da clams da katantanwa bawo. Saboda wannan dalili, sha'awa cikin kananan kifaye, kuma mafi anglers Notes cewa lalacewar daga Rattan ne mafi girma daga cikin amfanin.