Fish Arctic cod, abemi beelwandle wasentla

Nangona nobomi yayo ibonakale, ukubanda ngqwabalala, elwandle North Arctic Ocean, njengoko wenza i Arctic Ocean, kuhlala izinto ezininzi eziphilayo. Kusukela kuma-ezineseli kunye ezincinane ukuya ezincancisayo ezinkulu.

cod polar

lo kwangayo yona le ngohlangothi abandayo Hayi ohlala Arctic cod fish (lat. Boreogadus Saida), intlanzi ipelagic ezincinci intsapho cod, ekwabizwa ngokuba cod ezibandayo. Olu hlobo intlanzi akayithandi amanzi ashushu kwaye akhethe kubushushu obuphantsi ngokwaneleyo: thabatha okanye elisondele ku-0 degrees Celsius.

Xa amaqondo obushushu bolwandle kunye ulwandle amanzi lisingisa +5, Arctic cod basoloko akusekho kwenzeka. Ehlotyeni, le ntlanzi ebandayo-bothando bakhetha ukuhlala kufutshane elunxwemeni ngumkhenkce, ingakumbi Kara kunye noLwandle Barents.

I wonder apho intlanzi ubomi Arctic cod. Yena uyaqubha ukuya emantla naziphi na ezinye iintlobo zentlanzi izidanga 85 ngama ngasentla. amaqondo ezinjalo sityhafile okulula ukuthwala, ngenxa phambi emzimbeni, elileli, inkqubo yokujikeleza le glycoprotein AFGP, nto leyo ethintela intlanzi ngumkhenkce.

effect yayo kukuba ngokoqobo ziqina ukuba ziikristale umkhenkce, akasivumeli ukuba zikhule, ukuze intlanzi akuthethi ngumkhenkce kwaye ingabi iqhekeza lomkhenkce. Arctic cod Uyakuthanda ukuqubha kuphela emanzini onxweme, kodwa elwandle evulekileyo, ubukhulu becala phantsi floes ice kunye kwazo.

Ithanda umphantsi nomphezulu yamanzi, freshened kancinane ice floes zaphela. Saika akukho anzulu-manzi intlanzi, kwaye 500-900 leemitha ngaphantsi kwamanzi elwandle abawathobanga. Agcina imihlambi ukuthuthwa, njengezininzi imfundo intlanzi, nkqo, kusasa nangokuhlwa, kuxhomekeke phezu emazantsi, kunye edada imini nobusuku kuyo kumhlathi amanzi.

ukubonakala

Arctic cod intlanzi ikhangeleka kakhulu ingathi yimimangaliso, umzimba evuthelweyo obhityileyo, eziyiyo Brown-ingwevu ngaphezulu kwaye ubuhle ngezantsi, kunye esimthubi (kwaye ngamanye amaxesha purple). intloko Big amehlo ezinkulu ewayo, umhlathi asezantsi wamqubula phambili, nto leyo ulunika uhlobo ebhalwe. Ngokukhawuleza uyaqubha ngokusebenzisa isakhiwo umzimba, nosebenza njengoko uncedo wakhe angalulama izithandwa zakhe regale.

Arctic cod, intlanzi-osindileyo. Iminyaka Ubomi kwiminyaka zakhe 6-7. Kuba ezinezinga kumantla ukuba lukhulu. Ubude (oko zincinane usapho Gadidae) abadala ukufikelela 27-30 cm, abanye abantu kwaye ukufikelela-40 cm, kwaye inobunzima ngaphantsi kwe 250 grams.

Ukutya kuba abemi northern

I-Arctic cod awadli? Iintlanzi bakhetha ziiphytoplankton, zooplankton, kwezilwanyana, Qhotsa ezinye iintlanzi. Saika - zinendima ebalulekileyo ikhonkco lokutya i-Arctic Ocean. Njengomthengi enkulu kwizidalwa yolwandle, oko lisebenza ukutya eziphambili neentaka zasemanzini, seals, narwhals, belugas, amabhere , kunye iimpungutye iimpungutye Arctic, enye intlanzi inyama.

Arctic cod iintlanzi emanzini ngexesha izaqhwithi, ke ukutya nezilwanyana. inyama yayo ukudla, ixabiso eliphezulu lesondlo, kodwa ngenxa yokuba Ubumandi esezantsi (nzima kwaye anzongonzongo), Arctic cod akazange abe intlanzi ethandwayo zorhwebo. Kodwa mkhulu ukuze kungonakali kunye nokuveliswa umgubo wentlanzi, ezinkonkxiweyo ioli isosi yetumato, ngetshaneli kunye nokutshaya, ngenxa ekwenziweni kokutya kwezilwanyana.

Xa kuqala ekwindla Arctic cod inokusilahlekisa nempahla emfutshane eninzi kwaye ihamba ukuya entshona, nasezantsi, ukudada elunxwemeni, esivumela ukuba sigcine ukuqokelelela iintlanzi bommandla wonxweme engena elwandle. Eli xesha, ukususela ngo-Oktobha ukuya kuMatshi, ngexesha zidala kwi Arctic cod.

Ngelo xesha, uqala zhor njengoko nabalobi bathi, kwaye ukuloba, nangona intlanzi kunye ayahlukanga incasa olugqibeleleyo. Le catch ephambili lwenziwa kwi Barents kunye White Seas.

zidala

Zidala e izonka kwenzeka kwiqondo lobushushu ngezantsi zero Celsius, kodwa akukho kubalulekile, kuba caviar kuyo ebandayo-ukumelana nezinejika. Mosque ukususela 7000 ukuya kuma-60 000 amaqanda cod polar. Fish zizala, uyaqubha emva elwandle, maxa wambi baqubha kude emlonyeni kunye esezantsi yemilambo.

amaqanda ayo ethubeleza iinyanga 3-4 kwaye esizigubungeleyo umgama omde ukusuka kumabala amaqanda. Malki zivele kuphela ngo-Epreli, uMeyi, kodwa Arctic cod ukhula ngokukhawuleza kwaye sele ifikelele kweminyaka emithathu ukuya kumyinge ngeesentimitha eziyi-17 ubude. Ukongeza enye ngonyaka ngamnye nge-2-3 cm, lufikelela iphezulu engu 6-7.

Arctic cod fish ukukhula ngokwesondo ifikelela kwi kweminyaka ukuya kwemine, kwaye bulindelwe ikakhulu kanye ebomini. Le Qhotsa adla ulwandle curl kunye nezilwanyana zaselwandle. Ngokukhula Qhotsa oselula uqala ukuya kuzingela ezinye iintlanzi kunye neentlanzi ezincinane.