Skipjack tuna

Tuna muaj ib tug me me, meaty tsw. Cov nqaij yog ci liab thaum nyoos thiab tig xim av-grey thaum siav.

Skipjack tuna feem ntau yog cov kaus poom.

Biology

Lub npe scientific: Katsuwonus pelamis

Tsev neeg:Scombridae

Lwm lub npe:Striped tuna, dej hiav txwv bonito

Nqe lus piav qhia:Skipjack tuna muaj lub cev zoo li lub cev nrog xiav xiav lossis ntshav qab zib, thiab nyiaj ntawm sab qis thiab plab. Lawv muaj 3-5 cov kab tsaus nti uas tseem ceeb khiav raws qhov ntev ntawm sab qis. Skipjack tuna feem ntau scaleless.

Loj (ntev thiab hnyav):Txog li 1.1 meters ntev thiab 34.5 kg.

Lub neej ncua:Txog 8-12 xyoos.

Habitat:Skipjack tuna tau nthuav dav thoob plaws hauv dej hiav txwv Pacific, Atlantic thiab Indian Oceans. Skipjack tuna yog migratory heev thiab taug kev mus ntev. Lawv yog hom pelagic uas tuaj yeem pom qhov tob ntawm 260 meters. Skipjack tuna nyiam mus kawm ntawv los ntawm qhov loj me. Cov tsev kawm ntawv feem ntau cuam tshuam nrog albacore lossis yellowfin tuna, thiab qee zaum nrog whales lossis whale sharks. Cov tsev kawm ntawv kuj tuaj yeem tshwm sim hauv kev koom nrog cov khoom ntab. Cov menyuam yaus feem ntau pom muaj nyob hauv cov dej saum npoo av thiab txav mus rau hauv dej tob dua thaum lawv loj tuaj.

Prey:Crustaceans, ntses thiab squid. Cannibalism feem ntau tshwm sim hauv cov tib neeg loj.

Predators:Cov ntses loj xws li yellowfin thiab bigeye tunas, thiab billfish.

Kev tsim tawm:Skipjack tuna ncav cuag kev loj hlob zuj zus thaum muaj hnub nyoog 1-2 xyoos. Lawv loj hlob thoob plaws hauv lub xyoo nyob rau hauv cov dej kub, thiab thaum lub caij ntuj sov thiab thaum ntxov caij nplooj zeeg nyob rau hauv subtropical dej. Nyob rau hauv dej sov cov poj niam spawn yuav luag txhua hnub. Poj niam tsim tau 0.8-2 lab qe ib lub caij spawning nyob ntawm lawv lub cev loj. Cov qe loj hlob tom qab 1-1.5 hnub.