Ib yam ntawm lawv cov zaub mov nyiam, lub pteropod, ploj mus. Lawv tau siv los ua ib qho khoom noj uas muaj ntau, me me qwj noj ua zaub mov noj. Pteropods me me, qab ntsev, thiab muaj protein ntau nrog lub plhaub sab nraud… …
hom tsiaj twg noj pteropods?
Txhua yam kab mob noj lawv, txij li me me mus rau ntses rau whales. Thiab lwm yam tsiaj xws li cov ntsaws ruaj ruaj (piv txwv li cov tsiaj nyeg rau polar bears) cia siab rau cov ntses uas noj cov pteropods. Cov "sea butterflies" no kuj yog cov zaub mov loj rau North Pacific cov menyuam yaus ntses ntses, uas peb tib neeg nyiam.
Vim li cas pteropods muaj plhaub?
Surface Production
Ntau hom phytoplankton thiab zoo plankton tsim cov calcium carbonate (CaCO3) plhaub lossis platelets, uas poob rau hauv hiav txwv tom qab tuag. Qee cov kab mob tsim kev sim ua los ntawm calcite (xws li, coccolithophores thiab foraminifera) thaum lwm tus (xws li, pteropods) tsim aragonite shells.
Pteropod pom qhov twg?
Pteropod, tseem hu ua npauj npaim hiav txwv, me me marine gastropods ntawm subclass Opisthobranchia (phylum Mollusca) tus yam ntxwv los ntawm ko taw hloov los ua ib khub ntawm tis zoo li flaps (parapodia) uas yog siv rau kev ua luam dej. Lawv nyob ntawm lossis ze ntawm hiav txwv; feem ntau yog tsawg dua 1 cm (0.4 nti) ntev.
Peropods puas tseem ceeb hauv cov khoom noj?
Pteropods tau noj los ntawm cov kab mobxws li qhov loj me los ntawm me me krill mus rau whales, thiab yogqhov tseem ceeb ntawm cov zaub mov rau North Pacific juvenile salmon.
