Ratan - nsomba, wosasiya mwayi mpikisano

Mpaka zaka zingapo zapitazo kukumana nsomba rattan mu Russia izo zinali zotheka ku Far East. Today anglers ku Russia ndi mantha, chifukwa m'madzi kwawo anaonekera rattan - nsomba adya padziko lonse. Anthu wodzichepetsa woyima madzi modabwitsa wakhama, komanso kulekerera mavuto onse a nyengo Russian ndi kudya caviar anthu ena mayiwe ndi nyanja.

Nsomba rattan: kufotokoza

Oimira yaikulu ndi kutalika kwa masentimita 30, kukula osachepera wamkulu - masentimita 14 Kunja rattan -. Nsomba unremarkable. Ilinso ndi mawonekedwe elongated kooneka ngati firebrand. Chekeni wa masiyanidwe mu nyengo mating mtundu lonse ndi yowala wakuda, mu mpumulo wa nthawi chimakhala chogwidwa ndi malankhulidwe imvi, zofiirira ndi wobiriwira.

Wandiweyani thupi, ndi mutu waukulu. Kumbuyo mutha kuona mawanga kotheratu. zoumbika mosiyanasiyana Mzere. Osiyana rattan nsomba zithunzi ali anapereka m'munsimu, pakamwa ochuluka. Ndi pakamwa izi yakusatetezeka lalikulu Perccottus glenii oimira anapereka dzina la rattan. A ambiri ang'ono koma lakuthwa mano thandizo osokoneza pansi pa nyama.

moyo

Malo ogwirira izi Poyamba madzi a Amur. M'zaka za m'ma 19 palibe vuto lililonse pa Koyamba, nsomba yaing'ono zinkachokera ku Russia chapakati, anamasulidwa ku mitsinje St. Petersburg ndiponso mizinda ina. Ndipo chifukwa cha umoyo zosaneneka za rattan ana kotero kuti anakhala aithamangitse nsomba zina ku m'mayiwe. Ichi ndi chifukwa chakuti maziko a mazira zakudya kukhala mitengo yofunika kwambiri ya nsomba mwachangu nsomba, tadpoles, mphutsi, tizilombo mollusks. Pamaso pa zinyalala nsomba dziwe limanena kuti mitundu ina likupita ikutha. Vuto ndi onse zinyama nsomba.

Tayani rattan ndi zovuta, chifukwa nsomba udzu ndi wodzichepetsa kwambiri zikhalidwe za malo. Kuti tipulumuke chilala, rattan m'manda matope, ndi isanayambike mvula akupitiriza ntchito zake zofunika monga ngati kanthu zinachitika. Mu madzi kuzizira kwa chilombo bwino nyengo mu ayezi. Mu madzi okhutira osauka a mwachangu chakudya amachita kudya kudya anzawo ang'onoang'ono.

Maganizo asayansi ndi chuma 'Zoneneratu

Chifukwa chakuti rattan - nsomba ndi kuwononga nsomba zinyama, kupeza ake ku mitsinje yaikulu ndi nyanja amaonedwa ndi asayansi kuipitsa. Si nthawi zonse vuto la anthu. mazira zambiri ali kusamutsidwa ndi mbalame ataliatali. mazira angapo ndi chokwanila zaka 4-5 wapita zamoyo zonse mu dziwe. Mpikisano nsomba ochokera pamoto akhoza kufika Pike, nsomba ndi mlamba. Komabe, mtengo wa pachaka wa kuchepetsa chiwerengero cha ukuwonjezeka nsomba. Akatswiri musati amalangiza kuthetsa chilombo mu amatunga yokumba, rattan nsomba mwamsanga kuchotsa mpikisano.

Koma kwa amatunga kakang'ono kukongoletsa ndi bwino view. anglers ambiri amati rattan chabwino kuluma, makamaka m'nyengo yozizira. Nyambo mungagwiritse ntchito nyambo: mphutsi, ziwala, nyama. Kukoma kwa nsomba si zoipa, koma mutu ali ndi mbali yaikulu ya thupi, ndi mimba ndi nthawi zambiri ngale ndi nkhono zipolopolo. Pachifukwa ichi, chidwi nsomba yaing'ono, ndipo anglers ambiri ananena kuti kuwonongeka kwa rattan ndi wamkulu kuposa ubwino.