Clams hu ua lim feeders. Lawv muaj lub raj siphon uas tso cai rau lawv lim oxygen los ntawm dej. Lawv kuj muaj gills nyob rau sab ntawm lawv lub cev kab noj hniav thiab mantle kab noj hniav. Nyob rau hauv lub mantle kab noj hniav, ntau gills ua hauj lwm ua ke coj dej mus rau hauv thiab tshem tawm carbon dioxide. Filter feeders muaj ntau qhov zoo.
Raws li cov tsiaj nyeg, clams yuav siv lawv cov siphons los kos rau hauv cov zaub mov, xws li algae, plankton, lossis ntau yam tsiaj txhu. Tom qab ib yam khoom tau tsiv mus rau hauv clam txoj kev, nws yuav kaw sai thiab qhib dua. Cov txheej txheem no pab tshem tawm cov khib nyiab uas tsis xav tau, cov plankton tuag, thiab lwm yam, uas nkag mus nrog rau qhov xav tau, xws li cov nroj tsuag cua.
Clams noj tau zaub mov txawv nyob ntawm seb lawv nyob qhov twg thiab qhov twg muaj nyob hauv lawv ib puag ncig. Lawv txawm paub tias muaj sia nyob los ntawm kev noj carrion (cov crustaceans tuag), ntses poop, maggots, thiab squid beaks decaying! Yog tias koj xav pub koj cov clams hauv tsev, muaj ob peb txoj kev xaiv; Koj tuaj yeem pub lawv npaj cov algae marine xws li spirulina los yog cov seaweed qhuav, lim cov pellets tshwj xeeb rau clams, lossis koj tuaj yeem cog seagrass hauv koj lub thoob dej yug ntses.
Cam Noj Li Cas?
Lawv tsis "tua" zoo li cov tsiaj nyeg zoo li cov tsiaj nyeg vim lawv lim tawm plankton los ntawm cov dej nyob ib puag ncig lawv. Txawm hais tias lawv tshwm sim nyob rau hauv thaj chaw uas muaj cov pa oxygen tsawg vim cov dej ntws tsawg lossis cov dej tsis huv, lawv tseem tuaj yeem muaj sia nyob ntev li ntev tau muaj cov plankton ntau nyob tom qab seaweed lossis lwm cov nroj tsuag uas lawv nyob.
Lawv Digest li cas?
digestion pib nrog clam lub qhov ncauj, uas tsis muaj hniav thiab me heev. Yog li ntawd, cov zaub mov tsis tuaj yeem zom tau ua ntej nws nqos rau hauv nws lub plab. Cov leeg ntawm lub plab phab ntsa thiab cov gills tom qab ntawd cog lus los rhuav tshem txhua qhov loj me uas nyob tom qab dhau los ntawm txoj hlab pas, nias lawv tawm tsam qhov chaw hauv plab hauv ob sab phlu. Qhov no tsim ib qho kev sib tsoo uas pab txo cov khoom loj dua rau hauv cov morsels me. Tom qab ntawd cov khoom tawg tau ntxiv los ntawm cov enzymes tso rau hauv lub plab uas pab nrog tshuaj lom neeg tawg.
Clams noj tau thiab zom lawv cov zaub mov sai heev, tshwj xeeb tshaj yog tom qab nws tau muab av lawm. Vim tias lawv cov plab zom mov luv, uas tsis muaj cov kua qaub lossis lwm cov kua txiv hmab txiv ntoo, clams tsis tuaj yeem ua cov khoom siv tsis zoo hauv lawv lub plab zoo li lub plab. Qee hom txawm yuav tshem tawm cov zaub mov tsis noj thiab quav tawm los ntawm tib lub siphon siv ua pa!
Catching clam quav yuav zoo tag nrho, tab sis nws yuav pab tau - txij li thaum lawv tau noj los ntawm cov tswv cuab ntawm dej hiav txwv cov khoom noj xws li ntses me me, cov kab mob hauv lawv cov gills tseem ua rau cov khoom pov tseg organic. Qhov no txhais tau tias clams ' quav tuaj yeem ua zaub mov rau lwm yam kab mob qis dua ntawm cov saw hlau.
Puas Noj Ntau Npaum Li Cas?
Clams yog cov noj tau zoo heev thiab yuav noj li 2% ntawm lawv lub cev hnyav ib hnub. Txij li thaum nws yog ib qho uas pom me me clams nyob hauv dej ntiav ze ntawm ntug dej hiav txwv, lawv feem ntau siv lub zog tsawg dua los mus ncig dua li cov tsiaj hauv dej loj xws li sharks uas xav tau zaub mov ntau dua kom muaj sia nyob.
Ib tug clam kuj tseem muaj sia nyob yam tsis siv ib lossis ob lub plhaub yog tias tsim nyog; Yog tias qhov no tshwm sim, clam's mantle (lub cev mos uas tiv thaiv nws lub cev sab hauv) yuav tsuas loj hlob lwm lub plhaub hauv lub sijhawm.
Yuav ua li cas rau lawv pov tseg?
Clams ua pa los ntawm kev siv siphons ntawm txhua sab ntawm lawv lub plhaub, nqus dej thiab tshem tawm cov dej ntawm ib ntus kom nqus oxygen los ntawm ib puag ncig ib puag ncig. Cov khoom pov tseg uas lawv tshem tawm tsis yog tawm los ntawm tib siphons tab sis los ntawm kev sib txawv ntawm lawv lub plhaub ntawm lawv cov gills.
qhov qhib no hu ua pneumostome thiab tej zaum yuav npog los ntawm daim nyias nyias los yog cov plaub hau zoo li cov qauv nyob ntawm hom.
Conclusion
Clams noj tsuas yog algae tab sis nyob ntawm lawv hom thiab thaj chaw; lawv kuj tseem yuav haus tau me me ntawm lwm yam kab mob xws li cov khoom lwj lossis cov quav ntses. Lawv zom zaub mov los ntawm kev sib tsoo nrog cov leeg hauv lawv lub plab thiab los ntawm kev pab ntawm enzymes secreted los ntawm lawv cov gills. Cov khoom pov tseg raug tshem tawm ntawm clams lub cev los ntawm pneumostome hauv qab lawv cov gills.
