Iinyani ezili-15 malunga neYellowfin Tuna

Itya ntoni ityhuna?

Xa zizingela, ityhuna isebenzisa isantya esikhulu sokuqubha. Bathanda ukutya imackerel. Imibungu yabo itya ii-amphipods, ezinye iintlanzi kunye ne-microorganisms. Iintlanzi ezincinci zikwatya izinto ezincinci.

Ingaba ityhuna inamathambo?

I-tuna inezinga eliphezulu lokugawula umzimba kwaye, kunye neswordfish (Xiphias gladius) kunye ne-salmon yesithixo (exilongwe kwi-Lampris guttatus), ziphakathi kweentlanzi ezimbalwa ezaziwayo ezinamathambo ezinobuncikane bemetabolism ye-endothermic.

Ngaba kukho ii-microplastics kwi-tuna?

Ukongeza, kunokucingelwa ukuba ityhuna, njengezinye iintlobo ezininzi zeentlanzi, iqulethe i-microplastics eninzi. Uhlolisiso lwakutshanje luye lwabonisa ukuba ngaphezu kwama-70 ekhulwini eentlanzi, phakathi kwezinye izinto, ezisebenza njengokutya kwentlanzi ityhuna etyiwayo ineentsholongwane ezincinane.

Yintoni ekhethekileyo ngetyhuna etyheli?

I-yellowfin ityhuna yenye yezona dadi zikhawulezayo elwandle. Njengezinye iintlobo zokrebe, i-yellowfin tuna kufuneka ihlale idada. Ukuze zifumane ioksijini emanzini, iintlanzi zidlula amanzi kwiigilili zazo.

Itya ntoni ityhuna eyellowfin?

Yellowfin ityhuna itya kufutshane nomphezulu wekhonkco lokutya kwiintlanzi, iskwidi, kunye neecrustaceans. Zingamaxhoba ezilwanyana ezizingelayo ezifana nookrebe kunye neentlanzi ezinkulu.

Inokuba nkulu kangakanani i-yellowfin?

I-Yellowfin ityhuna ikhula ngokukhawuleza, ukuya kuthi ga kwi-6 ubude kunye neeponti ezingama-400, kwaye inobomi obufutshane obuphakathi kweminyaka emi-6 ukuya kwesi-7. Uninzi ityhuna ye-yellowfin iyakwazi ukuvelisa xa ifikelela kwiminyaka emi-2 ubudala. Incopho yazo yokuzala isentwasahlobo nasekwindla.

Ikhawuleza kangakanani ityhuna ye-yellowfin?

I-Yellowfin ityhuna zindadi ezikhawulezayo kakhulu kwaye zinokufikelela kwisantya se-50 mph ngokusonga amaphiko azo ukuze zingene ngendlela ekhethekileyo. IYellowfin ngabafundi abomeleleyo, bahlala bequbha kwizikolo ezixubeneyo zohlobo olufanayo. Kwimpuma yoLwandlekazi lwePasifiki, i-yellowfin enkulu idla ngokufunyanwa ifunda kunye namahlengesi.

Ngaba ityhuna ye-yellowfin iyabiza?

Ngenxa yoko, azibizi kakhulu. IYellowfin isetyenziselwa isushi, isashimi, kunye nenyama yenyama. Isithethe saseHawaii sibhekisela kwezi ntlanzi ngokuthi “ahi,” gama elo abaninzi abasenokuba baqhelene nalo. Uninzi lwezicwangciso zorhwebo zine-yellowfin kwi-$8-$15 ngeponti.

Ingaba ityhuna iyellowfin inamazinyo?

I-Yellowfin ityhuna inamehlo amancinci kunye namazinyo amancinane. I-swim bladder ikhona kolu hlobo lwetyhuna.

Yeyiphi eyona tyhuna inkulu kweyakhe yabanjwa?

Eyona tyhuna inkulu kweyakhe yabanjwa yayiziikhilogram ezingama-427. Le ntlanzi inkulu yabanjwa kunxweme lwe-Cabo San Lucas ngo-2012 kwaye yenye yetyhuna ezimbalwa ze-yellowfin ezilobu bukhulu zibanjwe ngentonga kunye ne-reel.

Inzima kangakanani ityhuna ye-yellowfin?

I-yellowfin ityhuna iphakathi kweentlobo ezinkulu zetyhuna, ezifikelela kubunzima obungaphezulu kwe-180 kg (400 lb), kodwa incinane kakhulu kuneyetuna ye-Atlantiki ne-Pacific bluefin, enokufikelela ngaphezulu kwe-450 kg (990 lb), kwaye incinci kancinci kune-tuna enkulu. kunye netyhuna yasemzantsi ibluefin.

Yintoni etya ityhuna etyheli?

Ookrebe, kuquka i-bignose shark (Carcharhinus altimus), i-blacktip shark (Carcharhinus limbatus), kunye ne-cookiecutter shark (Isistius brasiliensis), zixhoba kwi-yellowfin tuna. Iintlanzi ezinkulu ezinamathambo zikwangamaxhoba etyhuna ye-yellowfin.

Ungatya ityhuna ye-yellowfin ikrwada?

Ituna: Naluphi na uhlobo lwetyhuna, nokuba yibluefin, yellowfin, skipjack, okanye ialbacore, ingatyiwa ikrwada. Sesinye sezona zithako zindala ezisetyenziswa kwisushi kwaye ithathwa ngabanye njengophawu lwesushi kunye nesashimi.

Ngaba ungayitya i-yellowfin ityhuna enqabileyo?

Inyama yetyhuna yeYellowfin inomzimba oqinileyo, ofana nenyama yenkomo eshinyeneyo eyenza ukuba igqwese ekugcadweni kwaye ngokwesiko iphekwa inqabile ukuya phakathi-inqabile embindini njengenyama yenkomo.

Ngowuphi umbala ityhuna emele ukuba ibeyiyellowfin?

Kwimo yayo yendalo, intlanzi yetyhuna ye-yellowfin iba mdaka ngombala xa sele ibanjiwe, isikiwe kwaye ilungiselelwe ukuhanjiswa. EYurophu, apho kungavumelekanga ukusebenzisa imichiza ukufaka umbala kukutya okunje ityhuna, intlanzi ityhuna efumanekayo ekuthengiseni iivenkile zeentlanzi nakwiivenkile zegrosari iya kujongeka imdaka.