Clams vs Oysters
Txawm hais tias muaj kev faib tawm taxonomic thiab lwm yam zoo ib yam, muaj ntau qhov sib txawv ntawm clams thiab oysters. Morphological, cwj pwm, anatomical, thiab physiological yam ntxwv yog ib qho tseem ceeb los xav txog nyob rau hauv kev tshawb nrhiav qhov txawv ntawm clams thiab oysters.
Cam
Clams feem ntau yog cov edible bivalve molluscs nyob hauv burrows. Txawm li cas los xij, qee lub tebchaws siv qhov no los ua ib lo lus xa mus rau lwm cov bivalves nyob ntawm qhov kev xa mus hauv zos. Ntawm qhov tsis sib xws ntau tshaj plaws, Tebchaws Meskas thiab Tebchaws Askiv tuaj yeem raug txiav txim siab, vim tias lo lus clam yog siv los xa tag nrho cov chav kawm taxonomic ntawm Bivalvia lossis qee hom bivalves.
Clams muaj ob lub plhaub sib npaug uas muaj qhov dav thiab dav nrog ntau dua lossis tsawg dua puag ncig. Lawv tuaj yeem kaw lawv lub plhaub thaum lawv raug hem lossis ceeb toom. Lawv tuaj yeem kaw lawv lub plhaub kom nruj heev uas txawm tias muaj qee qhov cuam tshuam rau lus Askiv nrog qee cov lus xws li "zoo siab li clam" lossis "clam up". Feem ntau clams tsis muaj taub hau, thiab lawv qhov muag tsis pom, tab sis Scallops muaj qhov muag.
Clams tau muaj txiaj ntsig zoo li cov nqaij nruab deg nrog saj tsis sib xws. Cov kab lis kev cai sib txawv hauv ntiaj teb (Asian, Asmeskas, thiab European) tau tsim ntau hom khoom noj nrog clams. Ntxiv rau lawv cov txiaj ntsig ua zaub mov, clams tau siv hauv kev lag luam tsoos tsho (khawm hauv khaub ncaws), aquaria, thiab txawm tias yog nyiaj hauv qee lub tebchaws.
Oysters
Oyster yog ib lub npe uas siv los xa ob peb pawg ntawm marine thiab brackish water bivalves (Phylum: Mollusca). Thaum nws los txog rau oysters, lawv siv rau tib neeg yog qhov tseem ceeb heev. Qhov tseeb, lawv txhawb nqa qhov tseem ceeb ntawm qee cov tib neeg xav tau, tshwj xeeb tshaj yog los ntawm kev muab cov khoom ornaments thiab jewelleries. Tom qab ob peb lub lis piam los ntawm hatching tawm ntawm lub qe, lawv nyob ib ntus txuas mus rau ib tug tswv tsev (Glochidia theem). Tom qab ntawd, txhua tus neeg nrhiav tau lub tsev nyab xeeb thiab nyob ntawd mus tas lub neej. Thaum muaj ib qho chaw uas muaj ntau pua lossis txhiab tus oysters tau ua lawv lub tsev, nws hu ua Oyster Bed lossis Oyster Reef. Oyster txaj muab ib qho chaw zoo rau ntau hom tsiaj thiab nroj tsuag los tsim kom muaj kev ruaj ntseg ecosystems. Cov plhaub tawv tawv ntawm cov oysters muab cov substrates rau ntau cov nyom hiav txwv nrog rau ntau pua tus tsiaj me me xws li hiav txwv anemone, mussels, barnacles, thiab ntau ntxiv.
Oysters yog lim feeders, ntau cov pa phem hauv dej hiav txwv tau raug tshem tawm nrog rau nitrogen-compounds, tshem tawm cov khoom, thiab phytoplankton. Lawv muaj txiaj ntsig zoo hauv kev lim dej nrog qhov nruab nrab ntawm tsib litres ib teev los ntawm ib tus neeg xwb. Ntawm qhov tod tes, oysters tuaj yeem suav hais tias yog tus kheej loj hlob "dej lim" hauv hiav txwv, vim tias lawv muaj peev xwm tsim tau ob lub qe thiab phev hauv tib tus neeg. Qhov tseeb, lawv tau nrawm heev hauv kev sib npaug; tsheej lab ntawm tus kheej-fertilized qe loj hlob mus rau larvae nyob rau hauv li ntawm rau teev, nrhiav tau lub substrate ruaj khov nyob rau hauv ob peb lub lis piam, thiab mature nyob rau hauv ib xyoos.
Oysters paub zoo txog lawv cov pearls muaj nuj nqis, thiab pearl oysters tau coj mus rau niaj hnub no.
Qhov txawv ntawm Clams thiab Oysters yog dab tsi?
• Clams nyob hauv qhov crevices thiab burrows whereas oysters nyiam nyob rau ntawm cov substrates raug.
• Clams tuaj yeem txav mus los ntawm lawv qhov chaw nyob siv lawv ko taw, tab sis cov oysters txuas rau ib qho chaw mus ib txhis.
• Clam plhaub yog dav thiab puag ncig thaum oyster plhaub feem ntau ntev thiab ntxhib.
• Ob leeg yog bivalves edible, tab sis clams yog nrov tshaj oysters ua zaub mov.
• Txiv neej thiab poj niam sib cais nyob rau hauv clams tab sis tsis nyob rau hauv oysters.
• Oysters muaj nuj nqis tshaj clams rau kev lag luam.
• Oysters tuaj yeem tsim pearls tab sis tsis clams.
• Clams muaj nyob rau hauv dej tshiab thiab dej ntsev, tab sis oysters yog marine loj.
