Reproduction o rengarenga moana. rengarenga Class te moana (whakaahua)

ao ohorere o te ora moana, he ki tonu i te hitimahuta i te reira. Etahi o ratou, me ki rupi me pükohu hanga he kari raro ahurei. Crinoids - he kararehe nöhanga, e kore tipu, rite te mea te reira i mawhiti tuatahi. no ratou ki nga echinoderms.

Nohoia e te rengarenga moana

Ko to ratou piha rawa he wāhi whānui o te tohatoha. I roto i te moana o te ao, ko te tata kahore wahi te wahi kihai i tutaki i te reira crinoids. E pā ana ki 700 ngā momo o te huruhuru-whetu. Ko te Russian wai moana nohoia e 5 anake o ratou momo.

Crinoids noho moana katoa. Hōhonu hoki ratou iti. Ratou rite te pai katoa. Otiia te nuinga o enei kararehe hiahia ki te noho i roto i te wai mahana moana ki pururu o pūkawa wheo, kua kei i runga i te rire pāpaku (200 mita).

Ngā momo o rengarenga moana

kanohi piha Crinoids e rua momo o huruhuru-whetu - E whaia ana a besstebelchatymi. takitahi katoa, ahakoa o ratou momo, kua piri ki katoa o ngā e kei raro te wai. crinoids E whaia ana, kakau pare mo te tetahi, noho tonu i roto i tenei tūranga. Rohe tauwhāiti ratou pūkoro te roa o te kakau ki runga e tiwhaiwhai ratou.

Besstebelchatye rengarenga, tangohia o tautoko, kua riro matou haere noa rahi o te mahi. whawhati atu i te tïpako ratou taea ki te hinga i te tawhiti iti, he. Māngi kararehe e tika hihi, mahi rite te fin. Heoi, whaia ia whetū pene kahore ona i roto i te tukanga whanaketanga kore e haere taahiraa te kakau piri. Tēnei āhuatanga, me te tārua o momo e rua o rengarenga moana hopoi tahi ratou.

whakaahuatanga koiora

I roto i te ingoa o tenei piha o te kararehe pakiaka Kariki. Crinoids (Crinoidea) whakamāoritanga rite "rite nga rengarenga." A pono, i roto i te mau taata no ki tenei piha haapiiraa, te tinana fantastic, rite te puawai timera. Ko te faitatau o puawai faarahi te whetu huruhuru tinana tae ātaahua. Te hopu titiro o te mea ataahua moana, a ka hiahia ahau ki te hanga i te pikitia o ia. Crinoids - he whakapaipai ahuareka māra raro, i mahi i runga i te hanganga o te kaihoahoa ngingila - nei ano e.

Crinoids i te tinana kapu-āhua ki te kōhao-waha i roto i te pokapū. Whakatika i te kapu whakaarahia hihi pekapeka (ringa), me te kōrori. E whaia ana matou crinoids piri ki te raro o te kakau kapu tupu ki te roa o te kotahi mita. kawe Petiolus ki konga lateral (cirri) piri ki te whenua. Besstebelchatye nga rengarenga e tika cirri turanga, kua whakaratohia te pito o nei ki te serrated "matikuku" ranei. Ngā mihi ki a ratou besstebelchatye takitahi piri ki te whenua.

Huruhuru-whetu i anake nga echinoderms, e whakahaere ki te pupuri i to ratou takotoranga āhuatanga matua o te tinana. taha hikumārō piri ratou ki te whenua, me taua mata whakaratohia e te ki te kōhao-waha tahuri whakarunga. Ko te pūtake o te hanganga o ratou tinana whakatakotoria e rima-ara hangarite toropā. Ko te tinana i hanga e rima hihi taea o tini wehea ki nga wahi, me te puka i 10-200 "ringa teka." E whakaratohia ana te kurupae ki manga lateral maha (pinnulami).

Ngā mihi ki te corolla tonu-puhia i hanga he ahua o te whatunga e mau köurarangi me detritus. E whakaratohia ana hihi te hanga i te taha ki roto ki te awaawa muco-ciliary, e kua heke ki te kōhao-waha. Kia i roto i te kai neke ratou ki tona mangai. Puku, i runga i te mata i te taha o te tairanga koeke rawa te ki te whakatuwheratanga whero.

Hanga kōhiwi calcareous waho wāhi wāhanga. Kei a ia ko e rua nga wahi: hihi endoskeleton me te kakau. Enei kararehe nöhanga he tentacle, io me uri (ai te uri o rengarenga moana) pūnaha. Ko te kōhao-hihi ô i te kakau me te peka o ngā pūnaha whakaritea katoa.

e kore e Crinoids i ratou ritenga hāngai anake huru o te aho pokapū hikumārō-puku e rere i roto i nga tinana o nga kararehe katoa, engari ano hoki whirihoranga waho. wāhanga Tentacle o te pūnaha i te pene-whetu māmā. Hei tauira, kihai i tomo te reira i te ampoule, mo te whakahaere i nga waewae. E kore e kitea te reira i roto i nga kararehe, me te madreporite.

uri

Tatou mahi ki te hunga i roto i te uri o rengarenga moana. Enei echinoderms he kararehe dioecious. taka hua Fakasekisualé ki te hunga pinnuly e e kei ofi ange ki te kapu. Tane parāoa te tikanga tuatahi jetted i pinnul te whakamahi i rua motuhake.

arata'i tona whanonga ki whakaongaonga o te wahine, e kore he tetahi aerodynamics taihemahema. Ia pinnuly tika pakaru, a hinga i roto o ratou hua. mahi hua te kikiritanga te tika i roto i te wai, a ka tahuri ratou ki te torongū doliolyariyu oko. Heoi i reira he uri o rengarenga moana.

whanaketanga doliolyary

I muri 2-3 ra doliolyariya noho i runga i te whenua. whakakaha Ko tōna matamata whakairo kei runga i te tïpako, i tetahi taonga mārō, me te ara ratou ake takitahi ahua.

Ka ngaro ratou makawe iti, e tau whakaritea ai.

Ua faaite Hipanga pentakrinusa i e te kapu āta whakakitea hanganga rima-oka. tupu kakau, whakawhānui, te whakawhanake kurupae piri piki kōpae. haamata Doliolyariya ki rite te iti huruhuru-whetu, te toitoi i runga i te kakau. rerekē tōna rahi i roto i te wā o 0.4-1 cm. häpaingia wai Arctic makariri te torongū ki te tupu ki te 5 cm te roa. Neke atu i te wa doliolyariya atu, rerekëtanga ki te kakau me te kapu, i muri i hanga te mangai. I tenei wā o te whanaketanga o te torongū tsistoideynaya mutu.

Rerekētanga i roto i te whanaketanga o ngā rōpū

Ki te te whakaputa uri o rengarenga me te whanaketanga o te torongū o rite te taua moana, i muri i te otinga o te atamira pentakrinusa i roto i ngā rōpū e rua o crinoids atu rere matuatanga rerekē. takitahi E whaia ana, herea ki wahi kotahi, whiwhi wāhanga hou o te kakau. riro ratou tawharara te kakau, ano te tāpae o moni (mo pekehoe takitahi piko i runga i ia atu).

Pekehoe i te hononga turanga e whakarato ana uaua. î pokapū kakau hongere, te wahi takoto nga raru me huna atu whēkau. whakaritea Cirri i roto i ara e rua: rānei huri noa i te kakau, i tona turanga ranei.

riro takitahi faitatau whakaponohia ki te puawai e, i roto i te meka, whakaatu i te whakaahua tino mīharo maha. kakau Crinoids hou i roa rerekē, kei te nuinga o iti reira ki 75-90 cm. Na parawae kakau tae roa 21 m. whetu huruhuru tawhito he roroa tūturu.

Besstebelchatye rengarenga whakawhanake rerekē. I muri i te marama, me te hawhe te kapu takitahi pakaru i te kakau, kia tere noa. mate te kakau pae hopea.