Sharks, marine mammals (xws li killer whales thiab pilot whales), thiab ntses loj pub rau bluefin tuna. Bluefish thiab seabirds also prey upon juvenile bluefin tuna.
hom ntses noj bluefin tuna?
Cov uas muaj sia nyob yuav ntsib kev nce ntxiv ntawm lawv cov tsiaj nyeg. Adult Atlantic Bluefin tsis noj los ntawm lwm yam tshaj li qhov loj tshaj plaws billfishes, toothed whales, thiab qee hom dej hiav txwv qhib. Bluefin Tuna paub tias yog neeg tsiv teb tsaws chaw heev, nrog rau cov tib neeg ua kev tsiv teb tsaws ntev txhua xyoo.
Dab tsi tsiaj ua bluefin tuna noj?
Bluefins tau txais lawv qhov loj me los ntawm gorging lawv tus kheej yuav luag tas li ntawm ntses me me, crustaceans, squid, thiab eels. Lawv kuj tseem yuav lim-paub ntawm zooplankton thiab lwm yam kab mob me me thiab tseem tau pom tias noj kelp.
ntses hom ntses dab tsi noj?
Bluefin Tuna, nrog rau lawv qhov loj me thiab nrawm nrawm, haus ntau yam tsiaj txhu. Cov khoom noj muaj xws li herring, sanddabs, anchovies, mackerel, ya ntses, squid, cws, eels, thiab surfperches, nrog rau me me tuna. Cov tsiaj no nyiam yos hav zoov thaum kaj ntug, nruab hnub thiab tsaus ntuj.
Pob killer whales noj bluefin tuna?
Killer whales hauv Spain noj bluefin tuna nquag lossis cuam tshuam nrog kev nuv ntsesPods ntawm cov tib neeg cuam tshuam pom kev muaj sia nyob zoo dua thiab kev tsim tawm. Tsis muaj calf tau muaj sia nyob tom qab xyoo 2005, cuam tshuam txog qhov poob ntawm cov neeg nuv ntses no. Kev muab zaub mov tuaj yeem ua rau muaj kev cuam tshuam rau nyuj ciaj sia rau cov whales depredating.