Fish Arctic cod, owakhileyo kwezilwandle enyakatho

Naphezu sokungaphili yayo sobala, abandayo nokhahlo, kube seLwandle lwase-North -Arctic Ocean, njengoba enza e-Arctic Ocean, ahlala eminingi engokwemvelo ophilayo. Ezisukela owumphumela ne-plankton nezilwane ezinkulu ezincelisayo.

Ama-cod ase-polar

Not Okungenani kule onqenqemeni abandayo ithatha Arctic cod izinhlanzi (lat. Boreogadus Saida), izinhlanzi ezincane izinhlanzi umndeni cod, olubizwa nangokuthi ama-cod polar. Lolu hlobo izinhlanzi akabathandi amanzi afudumele futhi lukhetha ongaphakeme lokushisa ngokwanele: lokususa noma eduze 0 degrees Celsius.

Lapho izinga lokushisa kolwandle nasolwandle amanzi antante +5, Arctic cod ngokuvamile ayisekho kwenzeka. Ehlobo, le nhlanzi abandayo abathanda uthanda ukuhlala eduze emaphethelweni ice, ikakhulu Kara futhi uBarents Sea.

Kazi lapho izinhlanzi uhlala Arctic cod. Yena aphinde abhukude abuyele enyakatho yimuphi omunye ukuthi kunezinhlobo zezinhlanzi ezingaphezu ku 85 degrees enyakatho nenkabazwe. Okunjalo okushisa aphansi kukhona okulula ukuyiphatha, sibonga khona emzimbeni, okungukuthi isimiso sokujikeleza kwegazi we glycoprotein AFGP, okuyinto kuvimbela izinhlanzi kusuka zeqhwa.

Effect Its ukuthi ngokoqobo umboza zinhlayiya ice, ayikuvumeli ukuba zikhule, ukuze izinhlanzi ayigongobali futhi akubi ucezu ice. Arctic cod othanda ukubhukuda hhayi kuphela emanzini asogwini, kodwa futhi phakathi olwandle, ikakhulukazi ngaphansi zeqhwa futhi izintaba zeqhwa.

Ukhetha izingqimba engenhla kwamanzi, okwakuyinkinga freshened kancane kusuka elicibilikile zeqhwa. Saika izinhlanzi kungekho ezijulile-amanzi, futhi 500-900 amamitha ngaphansi kwamanzi olwandle akuyona eyehlisiwe. Imihlambi futhi uthuthe, like inhlanzi kakhulu esikoleni, mpo, ekuseni nakusihlwa, ke ulala phansi, imini nobusuku aphinde abhukude abuyele ezweni ikholomu amanzi.

ukubukeka

cod izinhlanzi Arctic ubukeka ngempela zingezona ezibonakalayo, side umzimba elincanyana, ensundu-grey phezu futhi silvery ngezansi, ophuzi (futhi ngezinye izikhathi onsomi) luhlaza. ikhanda Big futhi amehlo amakhulu bulging, umhlathi ongezansi ukwelula phambili, okuyinto ulunika uhlobo yamahlaya. Masinyane lo dade wavula aphinde abhukude abuyele ngokusebenzisa isakhiwo umzimba, esebenza njengesikhali asize yokutakula ezivela kuye abathandi ukukuxoxela.

Arctic cod, inhlanzi-osindile. Ubude bempilo yakhe iminyaka 6-7. Ukuze zindawo enyakatho kungcono a lot. Ubude (kuba elincane lomkhaya Gadidae) abadala ukufinyelela 27-30 cm, abanye abantu futhi angase afinyelele 40 cm, nesisindo esingaphansi 250 amagremu.

Nokudla Okunempilo Kwabo abakhileyo enyakatho

I-cod-Arctic zidla? Izinhlanzi uncamela phytoplankton, zooplankton, ezinamagobolondo, gazinga zithole ukuthi ezinye izinhlanzi. Saika - zinendima ebalulekile eziwukudla ye-Arctic Ocean. Njengoba umthengi enkulu plankton wasolwandle, siwulimi ukudla esiyinhloko izinyoni zasemanzini, izimvu zamanzi, narwhals, beluga, amabhere nezimpungushe Arctic izimpungushe, nezinye ezidla inyama.

Arctic cod izinhlanzi emanzini lapho kuneziphepho, iyona ukudla ezihlala ezweni. Inyama yaso yokudla, high umsoco, kodwa ngenxa (kanzima futhi lwamanzi) palatability yayo ongaphakeme, Arctic cod akazange zithandwe izinhlanzi kwezohwebo. Kodwa-ke inkulu ukuze kusebenziswe futhi ukukhiqizwa izinhlanzi ukudla, okusemathinini ngamafutha utamatisi sauce, omiswe nokubhema womshini kokudla kwezilwane.

Lapho kuqala ekwindla Arctic cod yaduka nemihlambi emikhulu futhi zithuthele entshonalanga naseningizimu, ukubhukuda ogwini, okuvumela ukuba bagcine ekuqongeleleni izinhlanzi ogwini lolwandle futhi zemifula. Le nkathi, kusukela ngo-October kuya ku-March, ngenkathi zidala e-Arctic cod.

Ngesikhathi esifanayo uqala zhor njengoba abadobi uthi, futhi kuba ukudoba, nakuba izinhlanzi kanye akahlukile ukunambitheka enkulu. Le catch main kwenziwe uBarents futhi White iziLwandle.

zidala

Zidala at izinkwa kwenzeka emazingeni okushisa ngezansi zero Celsius, kodwa akuyona ezibucayi njengoba nezibiliboco ezivela kuye abandayo ukumelana futhi elintantayo. Mosque kusuka amaqanda 7000 kuya ku-60 000 ama-cod polar. Fish eziyizimbangela, aphinde abhukude abuyele emuva, waphonseka elwandle, ngezinye izikhathi ebhukuda kude emlonyeni sifinyelela engezansi emifuleni.

amaqanda wakhe ethubeleza 3-4 izinyanga futhi basakaza phezu kude ngezizathu zidala. NoMaliki zivele kuphela ngo-Ephreli, Meyi, kodwa Arctic cod ikhula ngokushesha futhi isivele ifinyelele ngisho nalapho sengineminyaka emithathu isilinganiso 17 amasentimitha ubude. Ukungeza eminye minyaka yonke 2-3 cm, ifinyelela esiphezulu yayo iminyaka 6-7.

Arctic cod izinhlanzi lokuzala ifinyelela eminyakeni isilinganiso ezine, futhi spawns ikakhulukazi kanye ukuphila kwabo konke. I gazinga zidla ocean engajulile ne-plankton zasolwandle. Ngekukhula gazinga abasha iqala ukuzingela ezinye izinhlanzi nezinhlanzi ezincane.