Hiav txwv vaub kib los yog vaub kib (superfamily Chelonoidea) yog ib pawg ntawm cov tsiaj reptiles uas tau yoog nyob rau hauv dej hiav txwv. Ua li no, raws li peb yuav pom, lawv muaj cov yam ntxwv uas tso cai rau lawv ua luam dej tau ntev heev thiab ua rau lub neej hauv dej yooj yim dua.
The feeding of sea turtles depends on each species, the areas of the world in which they live and their migrations. Koj puas xav paub ntxiv? Hauv tsab xov xwm no hauv peb lub vev xaib peb teb tag nrho koj cov lus nug txog
Cwj pwm ntawm hiav txwv vaub kib
Ua ntej yuav paub turtles noj dab tsi, cia peb mus paub lawv me ntsis. Ua li no, peb yuav tsum paub tias kelonoid superfamily suav nrog tsuas yog 7 hom thoob ntiaj teb. Lawv txhua tus muaj cov yam ntxwv sib xws:
- Shell: Vaub kib muaj lub plhaub pob txha ua los ntawm cov tav thiab ib feem ntawm cov pob txha. Nws muaj ob daim: lub carapace (dorsal) thiab plastron (ventral) uas tau koom nrog tom qab.
- Flippers: Tsis zoo li cov vaub kib av, cov vaub kib hauv hiav txwv muaj flippers es tsis txhob ko taw thiab lawv lub cev yog qhov zoo rau kev ua luam dej ntau teev.
- Habitat: Cov vaub kib hauv hiav txwv tau muab faib rau hauv dej hiav txwv sov thiab hiav txwv. Lawv yuav luag tag nrho cov tsiaj nyob hauv dej hiav txwv. Tsuas yog cov poj niam taug kev hauv av los nteg qe rau ntawm ntug hiav txwv uas lawv ya mus.
- Life cycle: Lub neej voj voog ntawm hiav txwv vaub kib pib nrog yug ntawm hatchlings ntawm ntug hiav txwv dej thiab lawv kev taw qhia rau hauv hiav txwv. Nrog rau kev zam ntawm flatback vaub kib (Natator depressus), cov vaub kib me me muaj cov theem pelagic uas ib txwm muaj tshaj li 5 xyoos. Nyob ib ncig ntawm lub hnub nyoog ntawd, lawv ncav cuag kev loj hlob thiab pib tsiv teb tsaws.
- Migrations: Cov vaub kib hauv hiav txwv ua rau muaj kev tsiv teb tsaws chaw zoo heev ntawm thaj chaw noj mov thiab thaj chaw mating. Cov poj niam kuj tau mus rau ntug hiav txwv uas lawv yug los nteg qe, txawm tias cov no feem ntau ze rau thaj tsam mating.
- Senses: Zoo li ntau cov tsiaj hauv hiav txwv, vaub kib muaj qhov hnov lus zoo heev. Tsis tas li ntawd, lawv qhov muag pom tau zoo dua li cov vaub kib av. Kuj tseem ceeb heev yog lawv lub peev xwm los taw qhia lawv tus kheej thaum lawv tsiv mus nyob ntev.
- Sex Determination: Qhov kub ntawm cov xuab zeb txiav txim siab poj niam txiv neej hatchlings thaum lawv nyob rau hauv lub qe. Yog li, thaum kub siab, cov poj niam muaj kev loj hlob, thaum tsis tshua muaj kub txaus nyiam kev loj hlob ntawm txiv neej vaub kib.
- Threats: Tag nrho cov vaub kib hiav txwv, tshwj tsis yog cov vaub kib flatback (N. depressus), raug hem thoob ntiaj teb. Cov hawksbill hiav txwv vaub kib thiab Kemp's ridley hiav txwv vaub kib yog qhov txaus ntshai heev. Qhov kev hem thawj tseem ceeb rau cov tsiaj hauv hiav txwv no yog kev ua qias tuaj ntawm dej hiav txwv, tib neeg txoj haujlwm ntawm ntug hiav txwv dej, kev nuv ntses thiab kev puas tsuaj ntawm lawv qhov chaw nyob vim yog trawling.
Types of feeding of sea turtles
vaub kib tsis muaj hniav, tab sis siv cov npoo ntse ntawm lawv lub qhov ncauj txiav zaub mov. Vim li no, kev noj zaub mov ntawm hiav txwv vaub kib yog raws li cov nroj tsuag marine thiab invertebrates.
. Qhov tseeb, peb tuaj yeem sib txawv peb hom turtles raws li lawv cov khoom noj:
- Omnivores
Feem ntau, cov vaub kib no noj txhua yam marine invertebrates, xws li zooplankton, sponges, jellyfish, molluscs, crustaceans, echinoderms. thiab polychaete annelids.
Ntawm no yog cov vaub kib hauv hiav txwv thiab lawv noj dab tsi:
- Leatherback vaub kib (Dermochelys coriacea): nws yog tus vaub kib loj tshaj plaws hauv ntiaj teb thiab nws lub nraub qaum tuaj yeem ncav cuag 220 cm ntev. Lawv cov zaub mov yog raws li jellyfish ntawm chav kawm Scyphozoa thiab zooplankton.
- Kemp's ridley sea turtle (Lepidochelys kempii): tus vaub kib no nyob ze ntawm ntug dej hiav txwv thiab noj txhua yam ntawm invertebrates. Qee lub sij hawm, koj tuaj yeem noj qee cov algae.
- Flatback vaub kib (Natator depressus): Nws yog ib qho chaw nyob rau sab av loj ntawm Australia thiab, txawm tias lawv yuav luag tsuas yog carnivorous, lawv muaj peev xwm. kuj noj me me ntawm algae.
Yog koj xav paub ntau ntxiv txog kev noj cov tsiaj loj hauv dej hiav txwv, tsis txhob hnov qab lwm tsab xov xwm ntawm What do whales eat.
Hiav txwv turtles noj dab tsi?
Cov vaub kib hauv dej muaj serrated horny beak uas tso cai rau lawv txiav cov nroj tsuag uas lawv noj. Tshwj xeeb, lawv haus algae thiab phanerogamous nroj tsuag marine xws li Zoostera lossis Posidonia.
Tseem tsuas muaj ib hom tsiaj qus vaub kib, vaub kib ntsuab (Chelonia mydas) Txawm li cas los xij, thaum lawv yug me nyuam thiab cov menyuam yaus lawv kuj haus invertebrates, uas yog, lawv yog omnivorous. Qhov sib txawv ntawm kev pub mis no yog vim qhov xav tau ntau dua rau cov protein thaum lub sijhawm loj hlob.
omnivorous sea turtles noj dab tsi?
Omnivorous sea turtles feed on invertebrate animal, nroj tsuag, thiab qee cov ntses uas nyob saum hiav txwv. Hauv pab pawg no peb tuaj yeem suav nrog cov kab hauv qab no:
- Loggerhead Hiav Txwv Turtle (Caretta caretta): Cov vaub kib no dav dav pub rau txhua yam invertebrates, algae thiab seagrasses, thiab, nws muaj peev xwm txawm noj ntses.
- Olive Turtle (Lepidchelys olivacea): nws yog vaub kib nyob hauv dej kub thiab kub kub. Nws txoj kev noj zaub mov zoo heev thiab muaj peev xwm sib txawv nyob ntawm seb nws nyob qhov twg.
- Hawsbill vaub kib (Eretmochelys imbricata): Cov hawksbill tsis paub tab yog cov tsiaj txhu. Txawm li cas los xij, cov neeg laus suav nrog algae hauv lawv cov zaub mov ib txwm muaj, yog li lawv tuaj yeem suav tias yog omnivores.
