Key Difference – Snow Crab vs King Crab
daus roob ris thiab huab tais roob ris yog ob hom crustaceans thiab koj tuaj yeem pom qee qhov txawv ntawm lawv ntawm lawv lub cev. Crabs nyob rau hauv kev txiav txim Decapoda thiab yog tus cwj pwm los ntawm lub xub ntiag ntawm 10 segmented ceg (decopds), tawv crust, sideway taug kev tus cwj pwm, thiab muaj peev xwm ciaj sia nyob rau hauv ob lub teb chaws thiab dej (feem ntau crabs). Qhov sib txawv tseem ceeb ntawm daus roob ris thiab huab tais roob ris yog tias Snow Crab tau muab cais raws li genus Chionoecetes nyob rau hauv tsev neeg Oregoniidae thaum King Crab raug cais nyob rau hauv kaum sib txawv ntawm tsev neeg Lithodidae. Nyob rau hauv tsab xov xwm no, lub cev ntawm ob hom roob ris tau piav qhia kom yooj yim pom qhov txawv ntawm cov roob roob ris thiab huab tais roob ris.
Snow Crab yog dab tsi?
Snow crab yog crustacean cais raws li genus Chionoecetes. Nws yog ib txwm nyob rau sab qaum teb sab hnub poob Atlantic thiab North Pacific dej hiav txwv thiab yog hom muaj npe nrov rau kev lag luam sau qoob loo rau tib neeg noj. Nws muaj ib tug puag ncig carapace nrog ib tug luv luv rostrum. Qhov dav ntawm carapace ntawm tus txiv neej loj hlob tag nrho yog nyob ib ncig ntawm 160 mm. Txiv neej crabs loj dua poj niam crabs. Cov txiv neej tuaj yeem paub qhov txawv ntawm qhov loj ntawm lub claw. Predatory snow crabs yog benthic invertebrates thiab pub rau me me invertebrates xws li crustaceans, bivalves, brittle hnub qub, annelid worms, thiab lwm yam. Tsis tas li ntawd, cov crabs no kuj yog scavengers. Tsis tas li ntawd, cannibalism kuj pom ntawm cov poj niam nruab nrab.
King Crab yog dab tsi?
King Crabs lossis Pob Zeb Crabs yog cov crustaceans thiab muaj npe nrov ua zaub mov vim lawv qhov loj thiab saj ntawm lawv cov nqaij. Kaum tus huab tais crab hom tau raug txheeb xyuas txog tam sim no. Ntawm lawv, Red King Crab yog hom loj tshaj plaws ntawm huab tais crabs thiab feem ntau cov khoom lag luam sau qoob loo. Nws yog xav tias huab tais crabs tau muab los ntawm hermit crab-zoo li poj koob yawm txwv. King crabs feem ntau pom nyob rau hauv hiav txwv txias. Lub carapace dav ntawm ib tug liab crab yog nyob ib ncig ntawm 28 cm. King crabs tuaj yeem tiv taus ntau qhov kub thiab txias. King crab feem ntau nyob hauv dej tob tob.
Snow Crab thiab King Crab yog dab tsi?
Kev cais ntawm Snow Crab thiab King Crab
Snow Crab: Snow crab yog cais nyob rau hauv genus Chionoecetes nyob rau hauv tsev neeg Oregoniidae.
King Crab: King crabs raug cais raws li kaum sib txawv ntawm tsev neeg Lithodidae.
Ntseeg ntawm Snow Crab thiab King Crab
Lub cev loj
Snow Crab: Ib tug txiv neej loj hlob nyob ib ncig ntawm 160 mm
King Crab: King crabs loj dua snow crabs.
Habitat
Snow crabs: Snow crabs yog ib txwm nyob rau sab hnub poob Atlantic thiab North Pacific dej hiav txwv
King crab: King crabs feem ntau pom nyob rau hauv dej txias.
Anatomy
King crabs: King crabs muaj cov txha nraub qaum zoo li cov qauv ntawm lawv cov exoskeleton tsis zoo li hauv cov daus daus.
Snow Crab: Snow Crabs muaj peb ceg kaum.
Image Courtesy: "Chionoecetes opilio" los ntawm Takaaki Nishioka - Flicr.com. (CC BY-SA 2.0) ntawm Wikimedia Commons "Redkingcrab" los ntawm National Oceanic thiab Atmospheric Administration (Public Domain) ntawm Wikimedia
