Octopuses yog marine cephalopod mollusc tsiaj nyob rau hauv qhov kev txiav txim Octopoda. Nws qhov tshwj xeeb tshaj plaws thiab paub zoo tshaj plaws yog qhov muaj 8 extremities uas tawm los ntawm nruab nrab ntawm nws lub cev, qhov ncauj qhov ncauj. Lawv lub cev muaj lub ntsej muag dawb thiab gelatinous, uas tso cai rau lawv hloov pauv sai sai thiab hloov mus rau qhov chaw xws li pob zeb crevices. Cov tsiaj txhu peculiar invertebrate no yog cov neeg txawj ntse tshaj plaws, thiab tau tsim qhov muag pom tau zoo thiab lub paj hlwb nyuaj heev.
Lawv yog cov neeg nyob hauv ntau qhov chaw ib puag ncig, xws li thaj chaw abyssal ntawm ntau lub hiav txwv, thaj chaw intertidal, coral reefs thiab txawm tias thaj chaw pelagic. Lawv kuj pom muaj nyob hauv tag nrho lub ntiaj teb dej hiav txwv, thiab tuaj yeem pom nyob rau hauv dej sov thiab dej txias. Koj puas xav paub octopuses noj dab tsi ? Zoo, txuas ntxiv nyeem tsab xov xwm no ntawm peb lub xaib thiab peb yuav qhia koj txhua yam txog kev pub tsiaj zoo no.
Nkauj hmoob toj siab
octopus yog ib tug tsiaj uas muaj carnivorous, uas txhais tau hais tias nws noj nruj me ntsis rau cov zaub mov ntawm tsiaj keeb kwm. Kev noj zaub mov ntawm cephalopods yog qhov sib txawv heev thiab yuav luag txhua hom yog predatory, tab sis feem ntau ob qho qauv tuaj yeem paub qhov txawv:
- Octopuses uas noj ntses: ntawm ib sab, muaj cov octopuses uas feem ntau noj ntses, thiab nyob rau hauv pawg no muaj. yog hom tsiaj pelagic, uas yog cov neeg ua luam dej zoo heev.
- Octopuses that feed on crustaceans: Ntawm qhov tod tes, muaj cov hom uas lawv cov zaub mov tseem ceeb ntawm crustaceans, thiab ntawm no. pab pawg muaj xws li hom ntawm lub neej benthic, uas yog, cov neeg uas nyob rau hauv lub seabed.
octopuses ntawm lwm hom noj dab tsi?
NOJ NIAM YUAV TSUM TAU TXAIS KEV NCO NTSOOV tias ntau zaus, kev pub mis ntawm octopuses nyob rau qhov twg lawv nyob thiab qhov tob, piv txwv li:
- octopus (Octopus vulgaris): ib tug neeg nyob hauv cov dej qhib, nws noj tsuas yog rau crustaceans, gastropods, bivalves, ntses thiab qee zaus, ntawm lwm cov cephalopods me.
- Octopuses of benthic species: Benthic hom feem ntau txav ntawm cov pob zeb hauv qab thaum hnov lawv txoj kev los ntawm cov kab nrib pleb hauv kev tshawb nrhiav zaub mov. Lawv ua li no ua tsaug rau lawv lub peev xwm los hloov lawv cov duab thiab lawv lub zeem muag zoo.
ZOG HOJ NIAM TXIV NOJ NIAM, tej zaum yuav noj polychaete cua nab thiab qau.
Octopus Digestion
Raws li peb paub, octopuses yog carnivorous thiab noj rau ntau yam tsiaj. Vim tias hom kev noj zaub mov no, koj cov metabolism yog nyob ntawm cov protein ntau, vim nws yog cov khoom tseem ceeb ntawm lub zog thiab ua cov ntaub so ntswg tsim. Lub txheej txheem digestion yog ua tiav dhau ob theem:
- Extracellular phase: tshwm sim thoob plaws hauv lub plab zom mov. Ntawm no tus beak thiab radula ua, uas yog endowed nrog cov leeg muaj zog uas lawv tuaj yeem tawm ntawm lub qhov ncauj, thiab yog li ua raws li cov khoom siv scraping. Nyob rau tib lub sijhawm, cov qog qaub ncaug zais cov enzymes uas pib zom zaub mov.
- Intracellular phase: tshwm sim rau hauv lub caj pas digestive. Nyob rau theem ob no, cov khoom noj uas tau npaj tau dhau mus rau hauv txoj hlab pas thiab tom qab ntawd mus rau hauv plab. Ntawm no, cov zaub mov loj txuas ntxiv nws cov degradation ua tsaug rau lub xub ntiag ntawm cilia. Thaum qhov no tshwm sim, qhov nqus ntawm cov as-ham yuav tshwm sim hauv lub plab zom mov, tom qab ntawd thauj cov khoom tsis zoo rau hauv txoj hnyuv, los ntawm qhov nws yuav muab pov tseg rau hauv daim ntawv ntawm cov quav pellets, uas yog, cov khoom noj uas tsis tau noj.
Tam sim no koj paub tias dab tsi octopuses noj thiab lawv tua tsiaj li cas, tej zaum koj yuav xav nyeem lwm tsab xov xwm no ntawm peb lub vev xaib txog 20 qhov tseeb txog octopuses raws li kev tshawb fawb.
