Qhov sib txawv tseem ceeb ntawm kev ncua thiab tso nyiaj tso tawm yog qhov kev ncua sij hawm pub noj cov khoom noj los ntawm kev ncua thaum tso nyiaj pub noj cov khoom noj los ntawm cov sediment.
Kev ncua thiab kev tso nyiaj pub mis yog ob hom kev pub noj hauv cov dej hauv dej, tshwj xeeb tshaj yog nyob rau hauv lub benthos. Suspension feeders ingest particles los ntawm kev ncua. Yog li ntawd, lawv tau txais cov zaub mov raug tshem tawm hauv dej. Deposit feeders nyob ntawm cov sediment. Lawv ingest particle los ntawm sediments. Lawv noj txhua lub sijhawm txij li lawv xav tau kom ua tau raws li lawv lub zog xav tau los ntawm cov sediments uas muaj cov ntsiab lus organic tsawg.
Dab tsi yog Suspension Feeders?
Kev ncua kev noj zaub mov yog cov tsiaj hauv dej uas tau txais cov khoom noj los ntawm kev ncua. Yog li ntawd, lawv noj cov organic teeb meem raug tshem tawm hauv dej. Ntau ntawm lawv muaj peev xwm lim dej. Cov hnub qub ci ntsa iab, qee cov cnidarians, thiab ntau tus kab mob annelid yog cov khoom noj suspension. Suspension feeders muaj nyob rau hauv ob qho tib si pelagic thiab benthic systems. Lawv yog cov kab mob tseem ceeb hauv ecological uas pab txhawb kev saib xyuas cov dej zoo hauv cov dej hauv dej. Lawv tshem tawm cov organic teeb meem thiab tseem yaj inorganic hais. Tsis tas li ntawd, lawv txo cov dej paug uas tshwm sim los ntawm kev ua haujlwm anthropogenic. Yog li ntawd, ncua kev pub noj mov yog ib feem tseem ceeb ntawm ntau yam kev kho dej ntuj.
Daim duab 01: Ncua Feeders
Qee qhov kev tshem tawm cov khoom noj yog feem ntau cov zaub mov ntawm planktonic algae. Lwm tus yog carnivores, omnivores thiab detritivores. Suspension feeders tuaj yeem ntes cov khoom los ntawm kev ncua kev kawm passively lossis nquag. Passive suspension feeders nyob ntawm cov dej ambient ntws, thiab lawv muaj ib tug stalked morphology los yog tsim hlab. Nyob rau hauv sib piv, active suspension feeders feem ntau tsim lawv tus kheej pub tam sim no los yog nquag ua luam dej los yog koom nrog rau lwm yam kev coj noj coj ua. Feem ntau ntawm cov active suspension feeders yog lim feeders. Lawv tso dej los ntawm cov ntaub ntawv zoo li cov qauv los ntes cov zaub mov.
Dab tsi yog Deposit Feeders?
Cov khoom tso cia yog cov tsiaj hauv dej uas pub cov organic teeb meem nyob rau hauv qab. Nyob rau hauv lwm yam lus, deposit feeders yog cov tsiaj uas ingest particles nyob rau hauv sediments. Yog li ntawd, lawv yog cov tseem ceeb hauv av nkos sediments. Lawv nyob ntawm av nkos thiab xuab zeb sediments. Lawv ua tiav lawv cov kev xav tau ntawm cov khoom noj los ntawm cov sediment ntawm seafloor feem ntau. Flounders, eels, haddock, bass, crabs, shellfish, snails thiab hiav txwv cucumbers yog ob peb yam piv txwv ntawm deposit feeders.
Daim duab 02: Deposit Feeder
Feem ntau, sediments muaj cov organic teeb meem tsawg. Yog li ntawd, txhawm rau ua kom tau raws li qhov xav tau, cov khoom siv sib sib zog nqus yuav tsum tau noj ntau cov sediments tsis tu ncua. Qhov no txo cov organic teeb meem cov ntsiab lus hauv sediments. Nws kuj tseem tso cov khoom pov tseg ammonium rau benthic microalgae thiab lwm yam kab mob.
Dab tsi yog qhov zoo sib xws ntawm Kev Ncua Sijhawm thiab Cov Nyiaj Them Nyiaj Txiag?
- Ob qhov kev ncua thiab tso nyiaj tso tawm yog cov tsiaj hauv dej.
- Lawv pub rau cov khoom hauv dej.
- Ntxiv mus, lawv koom nrog kev caij tsheb kauj vab hauv dej.
Dab tsi yog qhov txawv ntawm Kev Ncua Sijhawm thiab Cov Nyiaj Them Nyiaj?
Qhov sib txawv tseem ceeb ntawm kev ncua thiab tso nyiaj tso tawm yog tias cov khoom noj ncua kev kawm tau txais cov as-ham los ntawm kev ncua thaum cov nyiaj tso nyiaj tau txais cov khoom noj los ntawm cov av. Ntxiv mus, cov khoom noj suspension feem ntau yog lim feeders uas tsim cov dej ntws los ntawm cov qauv zoo li filer los ntes cov khoom. Meanwhile, cov deposit feeders nqos ib tug loj npaum li cas ntawm sediments nyob rau hauv thiaj li yuav ua tau raws li lawv lub zog yuav tsum tau. Yog li ntawd, lawv noj txhua lub sijhawm. Yog li, qhov no kuj yog qhov sib txawv tseem ceeb ntawm kev ncua thiab kev tso nyiaj tso nyiaj.
Cov hauv qab no infographic teev qhov sib txawv ntawm kev ncua thiab tso nyiaj tso rau hauv daim ntawv teev npe rau ib sab ntawm kev sib piv.
Summary – Suspension vs Deposit feeders
Kev ncua kev pub zaub mov thiab tso nyiaj tso nyiaj yog ob hom tsiaj hauv dej raws li lawv tus cwj pwm pub. Suspension feeders ntes thiab noj cov organic teeb meem raug tshem tawm hauv dej. Lawv feem ntau yog lim feeders. Nyob rau hauv sib piv, deposit feeders ingest sediments thiab zom hais. Deposit feeders nce oxygenation thiab nutrient cycling. Suspension feeders nce dej zoo los ntawm kev tshem tawm cov organic thiab inorganic hais tawm. Yog li, qhov no yog cov ntsiab lus ntawm qhov sib txawv ntawm kev ncua thiab kev tso nyiaj tso nyiaj.
