A chakudya wapatali whitefish nsomba

A malonda whitefish nsomba nsombazi chifukwa cha kukoma lalikulu ndi lalitali zakudya khalidwe. Nsomba ndi membala wa nsomba ndipo amapezeka madzi ozizira pa maiko a kumpoto. Whitefish padziko madzi a Canada, Alaska, Siberia ndi kumpoto kwa Ulaya, kumene nyengo, chakudya ndi madzi ndi chosiyana kuchokera pano - ambiri subspecies nsomba. Makamaka ambiri ndi mosiyanasiyana nsomba whitefish mu Russia.

Ngakhale ndiwe wa mtundu umodzi zamoyo whitefish kugawidwa ndi moyo ndi makhalidwe morphological. Ngakhale mkati mwa nsomba umodzi dziwe mwina kusiyana maonekedwe, kukula, zakudya, chitukuko, kulawa nyama.

Mu Russia, mtundu wa nsomba whitefish ambiri mu gawo European ndi Siberia. Kamakhala pafupifupi mitsinje mu Ocean Arctic, ndi Baikal. Mu whitefish European opezeka mu Onega, Lake Ladoga, Nyanja Peipus, ndi Curonian ndi Gulf wa Finland. Makamaka kwambiri nsomba mu Karelian madamu.

Kuonetsetsa whitefish nyanja, mtsinje, kuyenda kudutsa. Nyanja ndi mtsinje ndipo zimaswana zimapezeka kokha mwa nyanja ndi mitsinje. Kulumikizana moyo makamaka mu nyanja, ndipo ndipita kwa zimaswana mu mtsinje. Ena oimira whitefish anadromous angakhale mu madzi amchere. Iwo amakhala mu nyanja, kawirikawiri mu malo ya confluence a mitsinje, kumene kwambiri chakudya, madzi si mchere wambiri, ndipo zimaswana akukwera mitsinje. Anabadwa tiana ta nsomba anadromous moyo mu mtsinje mu chaka.

Whitefish amasiyana ndi nambala ya stamens pa Chipilala branchial, limene lili pafupi pakamwa. Pali mitundu itatu: malotychinkovye, srednetychinkovye, mnogotychinkovye whitefish.

Pali mitundu itatu ya whitefish amapezeka malo m'kamwa: mkamwa chapamwamba oposa, kumapeto - kutsogolo, m'munsi - pansi. subtypes osiyana amasiyana ndi contours thupi. Mu ena yosalala ndi streamlined, pamene ena - okhota, lachitatu - ndi hump kapena mawere kutupa.

Chifukwa mbali morphological mu zakudya whitefish, yoperekedwa kwa subtypes osiyana, pali kusiyana. Mwachitsanzo, nsomba mtundu sig ndi ochepa gill rakers zomera sangathe kudyetsedwa chifukwa cha ndikosatheka kupsyinjika, choncho wakonda invertebrates benthic. Mnogotychinkovye whitefish kudya makamaka zomera.

Nsomba, amene pakamwa imatsogoleredwa m'mwamba, amangoona si lalikulu, kudya zamoyo ang'ono omwe amakhala mu zigawo chapamwamba madzi. Whitefish, amene pakamwa imatsogoleredwa patsogolo, lalikulu, kudya nsomba zazinkhanira, achinyamata, caviar nsomba, tizilombo mphutsi.

Kulemera kwa whitefish zing'onozing'ono ndi magalamu zosakwana zana ndi yaikulu amatha kulemera pogwiritsa oposa atatu. Malinga ndi mitundu, nsomba whitefish sizikula mofanana. Pali mofulumira kukula ndi pang'onopang'ono kukula mawonekedwe. subspecies osiyanasiyana whitefish manambala. Pali mitundu amene anthu achuluka kwambiri, ndipo ena M'malo mwake, ali pafupi kutha ndi kutetezedwa ndi lamulo.

Whitefish anapatsidwa ndi siliva (akazi chikasu) yunifolomu mtundu, mano mkamwa, mbali mosabisa, mamba mwachilungamo lalikulu, woyera nyama. Nsomba whitefish sasintha pamaso spawning mtundu wake, koma amuna pa thupi pali "ngale" placer. Amuna mosiyana akazi, thupi yaitali ndi mamba ang'onoang'ono.

subspecies kwambiri za zimaswana whitefish ya masika mu madzi ozizira. Kumapeto kwa chilimwe isanayambe spawning akutsikira whitefish mtsinjewo patali mokwanira. Akafika miyezi spawning. Childs, mbali iyi ya mtsinjewo ndi panopa ofooka, kuya osaya ndi mchenga pansi. Pambuyo spawning whitefish saafa, monga nsomba, ndi Umabwerera kwa okhazikika okhala.

Chifukwa cha nyama chokoma ndi zamafuta whitefish nsomba lofunika chakudya mankhwala. Nsomba lili zothandiza kwa amino zidulo ndi mchere: ayodini, fluorine, nthaka, chromium, chitsulo, phosphorous. whitefish mafuta bwino digested ndi chosakanikirana ndi thupi, sikukuvulaza m'mimba, wolemera mu mavitamini zofunika kwa anthu A, D, PP.