Fish Arctic cod, vagari nechokuchamhembe mumakungwa

Pasinei ayo pachena okusava noupenyu, chando uye hasha, kugungwa North Arctic Ocean, anoita kweArctic Ocean sezvo tiri kumusha zhinji zvipenyu. Kubvira chete-celled uye plankton kune makuru mhuka.

polar kodhi

Kwete mudukusa ichi pamupendero kutonhora anopindura Arctic kodhi hove (Lat. Boreogadus saida), duku pelagic hove kodhi mhuri, iyo chinonziwo polar kodhi. mhando iyi hove haadi mvura inodziya uye anoda pasi zvakakwana tembiricha: kubvisa kana pedyo 0 Celsius.

Apo tembiricha penyanza uye gungwa mvura inokwira kuna +5, Arctic Cod zvinowanzova vasisiri zvinoitika. Muzhizha, hove ichi inotonhorera-rudo vanosarudza kugara pedyo kumucheto chando, kunyanya muna Kara uye Sea Barents.

Handizivi apo hove anorarama Arctic Cod. Iye swims kuchamhembe zvimwe mhando hove iri madhigirii 85 rwokumusoro Latitude. tembiricha yakaderera kwakadaro nyore kutakura, nemhaka pamberi mumuviri, kureva muna kweropa ino iri glycoprotein AFGP, izvo kunotadzisa hove kubva kuoma nechando.

Its nezvinozoitika kuti sezvariri yakafukidzwa chando crystals, haabvumiri kuti dzikure, saka kuti hove asingadi -oma uye hauzoti chimedu chando. Arctic Cod anoda kushambira kwete chete munzvimbo yegungwa, asiwo megungwa, kunyanya pasi chando floes uye icebergs.

Anoda okumusoro akaturikidzana mvura, zvishoma freshened kubva zvakanyunguduka echando floes. Saika hapana yakadzika-mvura hove, uye 500-900 metres pazasi gungwa pamusoro haisi kutura. Kuchengeta zvipfuyo uye tama, kufanana zvikuru dzidzo hove, kutwasuka, mangwanani uye manheru, izvozvo riri pasi, uye masikati nousiku swims mhiri mvura mbiru.

chitarisiko

Arctic kodhi hove anotarisa zvikuru unremarkable, elongated mutete muviri, shava-musoro pamusoro uye silvery pazasi, pamwe tsvuku (uye dzimwe nguva yepepuru) Hue. Big musoro uye hombe bulging maziso, nechepazasi shaya aitambanudza mberi, izvo zvinopa akazviparidza enyambo imwe mhando. Akakurumidza swims kuburikidza nomuviri mamiriro, iyo inoshanda sezvo rubatsiro kwake kupora kubva avadikamwi vake regale.

Arctic cod, hove-akapona. Upenyu hunotarisirwa kwake makore 6-7. Nokuti kuchamhembe latitudes zviri chaizvo. Kureba (ndiko ruduku mhuri Gadidae) vakura anosvika 27-30 cm vamwe vanhu uye anogona kusvika masendimita 40, uye inorema magiramu asingasviki 250.

Zvokudya vanogara kuchamhembe

KweArctic kodhi uchidzidza? Hove vanosarudza kuti phytoplankton, zooplankton, zviduku crustaceans, furaya mamwewo hove. Saika - chinomubatanidza inokosha chuma zvokudya kweArctic Ocean. Sechinhu chikuru nevatengi pamusoro Oceanic plankton, rinoshanda se zvokudya vanonyanya hwemvura shiri, zvisimbiso, narwhals, belugas, polar mabheya , uye makava Arctic makava, dzimwe hove Mbeswa.

Arctic kodhi hove kubva mvura panguva madutu, ndizvo zvokudya mhuka yenyika. Its nyama zvokudya, yakakwirira muviri kukosha, asi nekuda kwayo pasi palatability (zvakaoma uye mvura), Arctic Cod haana kuva hove nevakawanda mune zvokutengeserana. Asi zvikuru kuti kubudiswa uye kugadzirwa hove zvoupfu, zvomumagaba mafuta uye tomato muto, nokuomesa uye fodya, nokuti zvaAtemisi mhuka zvokudya.

With kutanga kwematsutso Arctic Cod mukurasika huru makwai kutamira kumavirira nokumaodzanyemba, kushambira pamahombekombe, izvo anotibvumira kuchengeta kuunganidza hove mumhenderekedzo yegungwa mapazi uye estuaries. nguva ino, kubva October kusvika March, panguva zviri kukonzera mwaka iri kweArctic Cod.

Panguva iyoyo anotanga zhor sezvo nevaredzi vanoti, uye hove, kunyange zvazvo hove uye haana kumbosiyana pezvinhu kuravira. Huru hove rinoitwa muna Barents uye White makungwa.

zviri kukonzera

Zviri kukonzera pane zvingwa ndepana kutonhora pazasi razero Celsius, asi hazvisi kutsoropodza, sezvo caviar kubva inotonhora nemishonga uye zvinoyangarara. Mosque kubva mazai 7000 kusvika 60 000 munhu polar kodhi. Fish kuita kuti pave, swims shure mugungwa, dzimwe nguva kushambira kure mumuromo ezasi kunosvika nzizi.

mazai aro pachinenge 3-4 mwedzi uye hwakapararira rebei kubva zviri kukonzera nhandare. Mariki vo chete muna April, May, asi Arctic Cod inokura nokukurumidza uye akatotanga asvika makore matatu kuti paavhareji 17 masendimita pakureba. Chakawedzera mberi nerimwe gore 2-3 cm wasvika kunonyanyisa wayo nemakore 6-7.

Arctic kodhi hove kurara pakunamata inosvika makore avhareji kusvika mana, uye spawns kunyanya kamwe hwose. The furaya Tidzidze kudzika Ocean uye zvomumvura plankton. With kukura vaduku furaya anotanga kunovhima dzimwe hove uye nehove duku.