Cov txheej txheem:
Peb hom tseem ceeb tshaj plaws ntawm phytoplankton yog:
- Diatoms. Cov no suav nrog ib lub hlwb uas nyob hauv silica (iav) rooj plaub.
- Dinoflagellates. Lub npe no yog hais txog ob lub nplawm zoo li txuas (flagella) siv rau kev txav mus tom ntej.
- Desmids. Cov dej tshiab photosynthesisers zoo sib xws nrog cov seaweeds ntsuab.
Tsis tas li ntawd, dab tsi yog qhov txawv ntawm plankton?
Muaj ob lub ntsiab hom ntawm plankton, phytoplankton thiab zooplankton. Phytoplankton Lawv zoo li cov nroj tsuag thiab ua rau photosynthesis. Phytoplankton suav nrog cov kab mob microscopic xws li diatoms thiab dinoflagellates nrog rau xiav-ntsuab algae. Zooplankton yog tsiaj zoo li thiab yuav tsum tau noj lwm yam kab mob.
Ib yam li ntawd, dab tsi yog hom loj ntawm phytoplankton? Thaum muaj ntau txhiab ntau hom phytoplankton, muaj ntau pawg tseem ceeb uas ua rau feem ntau tshwm sim: kab mob cyanobacteria (aka xiav-ntsuab algae los yog cov kab mob xiav-ntsuab), dinoflagellates (lub luag haujlwm rau ntau 'tides liab'), thiab diatoms (ib qho ntawm cov kab mob zoo nkauj tshaj plaws).
Ua li no, peb pawg ntawm phytoplankton yog dab tsi thiab lawv txawv li cas?
Peb pawg ntawm phytoplankton yog dab tsi thiab lawv txawv li cas (sib tham txog hom plhaub, kev txav mus los, kev pub mis)? Peb ntawm plaub pawg ntawm phytoplankton yog diatoms, coccolithophores thiab dinoflagellates. Diatoms tau ntim rau hauv lub plhaub zoo li cov khoom tsim los ntawm silica hu ua frustells.
Plaub hom phytoplankton yog dab tsi?
Ntawm qhov sib txawv hom yog cyanobacteria, silica-encased diatoms, dinoflagellates, ntsuab algae, thiab chalk-coated coccolithophores. Phytoplankton muaj ntau haiv neeg, sib txawv ntawm cov kab mob photosynthesizing (cyanobacteria), mus rau cov nroj tsuag zoo li diatoms, mus rau armor-plated coccolithophores (kos duab tsis scale).
