Nsomba Arctic m'nyanja zikuluzikulu okhala nyanja kumpoto

Ngakhale lifelessness dzikoli likuonekera, ozizira ndi ankhanza, nyanja ya North Arctic Ocean, monga amachita Ocean Arctic, mumakhala zamoyo zambiri wamoyo. Kuyambira zokhala ndi selo imodzi ndi zomera ndi nyama zazikulu.

m'nyanja zikuluzikulu kumalo ozizira

Mosalephera mu mphepete izi ozizira ali Arctic m'nyanja zikuluzikulu nsomba (balati. Boreogadus saida), ang'onoang'ono pelagic nsomba m'nyanja zikuluzikulu banja, amene umatchedwanso m'nyanja zikuluzikulu kumalo ozizira. Mtundu uwu wa nsomba sakonda madzi ofunda ndi wakonda otsika kutentha mokwanira: opanda kapena pafupi 0 digiri Celsius.

Pamene kutentha kwa nyanja ndi nyanja madzi limatuluka kuti +5, Arctic m'nyanja zikuluzikulu amakhala osatinso amapezeka. Mu chilimwe, nsomba ozizira kukoma amakonda kukhala m'mphepete mwa ayezi, makamaka mu Kara ndi Barents Sea.

Ine ndikudabwa pamene nsomba amakhala Arctic m'nyanja zikuluzikulu. Iye amasambira kumpoto kwa mitundu ina ya nsomba mu 85 madigiri kumpoto kumpoto. Chotero otsika kutentha n'zosavuta kunyamula, chifukwa kukhalapo mu thupi, ndicho mu mitsempha ya magazi ya glycoprotein AFGP, amene kumathandiza nsomba kuzizira.

zotsatira zake ndi kuti kwenikweni unakhala timibulu ayezi, salola iwo kukula, kotero kuti nsomba amaundana ndipo sichikwiya chidutswa cha madzi oundana. Arctic m'nyanja zikuluzikulu amakonda kusambira osati madzi m'mphepete mwa nyanja, komanso nyanja, makamaka pansi floes ayezi ndi namkholowa.

Wakonda zigawo madzi a pamwamba, pang'ono freshened ku anasungunuka floes ayezi. Saika palibe kwambiri madzi nsomba, ndi mamita 500-900 pansi pa nyanja si adatchithisira. Anapulumutsidwa nkhosa ndi amasamukira, monga ambiri sukulu nsomba, umodzi, m'mawa ndi madzulo, pali pansi, usana ndi usiku amasambira kudutsa ndime madzi.

maonekedwe

Arctic m'nyanja zikuluzikulu nsomba zikuwoneka unremarkable ndithu, elongated woonda thupi, zofiirira-imvi pamwamba ndi silvery pansipa, ndi chikasu (ndipo nthawi zina chibakuwa) hue. Big mutu ndi maso aakulu oumbidwa m'munsi nsagwada kupisa patsogolo, amene amaupereka ngati azithunzithunzi. Iye mwamsanga amasambira mwa dongosolo thupi, amene akutumikira monga thandizo lake kuchira ku regale okonda ake.

Arctic m'nyanja zikuluzikulu nsomba-wopulumuka. Amayembekezeka kukhala ndi moyo zaka 6-7. Pakuti M'madera a zitunda kumpoto ndi zambiri. Kutalika (ndi laling'ono kwambiri pa banja Gadidae) akulu kufika masentimita 27-30, anthu ena ndipo akhoza kufika masentimita 40, ndipo zimalemera magalamu zosakwana 250.

Chakudya cha anthu a kumpoto

Kozizira m'nyanja zikuluzikulu kudya? Nsomba amakonda timayandama, zooplankton, nkhanu zing'onozing'ono, mwachangu nsomba zina. Saika - mgwirizano zofunika unyolo chakudya cha Ocean Arctic. Monga ogula yaikulu zomera zikuluzikulu, ali ngati chakudya chenicheni mbalame za m'madzi, zisindikizo, narwhals, belugas, zimbalangondo , ndi nkhandwe Arctic nkhandwe, zina zimadya nsomba.

Arctic m'nyanja zikuluzikulu nsomba mmadzi namondwe, ndi chakudya cha nyama lapansi. nyama yake zakudya, mkulu zakudya mtengo, koma chifukwa cha palatability ake otsika (mwakhama ndi madzi), Arctic m'nyanja zikuluzikulu sanakhale otchuka malonda nsomba. Koma lalikulu kwa processing ndi kupanga nsomba chakudya, zamzitini mu mafuta ndi msuzi wa tomato, kuyanika ndi kusuta, kupanga zakudya za nyama.

Ndi isanayambike yophukira Arctic m'nyanja zikuluzikulu mosochera mu ziweto zambiri ndi kupita kumadzulo ndi kum'mwera, kusambira ku gombe, amene amalola kuona kudzikundikira nsomba mu zone ya m'mphepete mwa nyanja ndi mitsinje. Nthawiyi, kwa October kwa March, pa spawning nyengo mu Arctic m'nyanja zikuluzikulu.

Pa nthawi yomweyo iye akuyamba zhor monga asodzi kunena, ndipo nsomba, ngakhale nsomba ndi sasiyana kukoma tsaya. The nsomba zazikulu ikuchitika mu Barents ndi White Pacific.

spawning

Spawning pa mikate limapezekanso pa kutentha pansi pa ziro Celsius, koma si kofunika, kuyambira caviar kwa iye ozizira zosagwira ndi kuyandama. Mosque mazira 7000 60 000 ndi m'nyanja zikuluzikulu kumalo ozizira. Nsomba zimaswana, amasambira kubwerera m'nyanja, nthawi zina kusambira mu m'kamwa ndi malire m'munsi mwa mitsinje.

mazira ake wofuka miyezi 3-4 ndipo anafalikira kutali ndi malo spawning. Malki tione yekha mu April, May, koma Arctic m'nyanja zikuluzikulu amakula msanga ndi kale zaka zitatu kwa pafupifupi 17 masentimita m'litali. Kuwonjezera zina chaka ndi masentimita 2-3, akafika pazipita ake ndi zaka 6-7.

Arctic m'nyanja zikuluzikulu nsomba pamsinkhu wobereka ukufika pa zaka pafupifupi zinayi, ndi spawns makamaka kamodzi pa moyo wawo. The mwachangu kudya nyanja osaya ndi zomera zam'madzi. Ndi kukula kwa mwachangu achinyamata amayamba kusaka kwa nsomba zina ndi nsomba ting'onoting'ono.