Sea urchin zidla - Denizens Kolwandle

Ngezinye ekujuleni kwezilwandle uma egcwele usawoti wasolwandle siphile izilwane ezimangalisayo - sea urchin zidla. Lokhu umlawuli wekhompyutha kukhasa utfolakala kuluhlobo ka echinoderms. Hedgehog umzimba has a encane (3-30 cm), embozwe calcareous igobolondo amapuleti lapho uxhumeke ezahlukene kanye ubude inaliti. Ziyakwazi ezidingekile ukuhamba isilwane. Amehlo zitholakala emzimbeni elingaphezulu.

Emvelweni, kukhona sea urchin zidla upende onhlobonhlobo: obomvu, omhlophe, omnyama, green, blue, onsundu, onsomi futhi grey. Ezinye izinyoni ukushintsha umbala kuncike umsindo kuma. Inombolo ephelele izikhonkwane, unikezwe ukuncela izinkomishi kanye asezindaweni ezikahle kulo lonke umzimba, ungaba izinkulungwane. Bayakwazi yokwelula inkontileka, ukuze isilwane kalula ukukhasa kusuka endaweni endaweni, kanye uzule amawa. Umlomo, some isikhumba elithambile, yakhiwa ngazimbili ezinhlanu oyindilinga ukuhlafuna amapuleti, imiphetho okuyizinto gills zangaphandle. sea urchin angasogwini babe izitho olukhethekile yakhoibrium - sferidii. Basuke etholakala eduze komlomo. Sea urchin has ekhethekile prehensile izitho - pedicellariae elise phakathi izinaliti. Basuke enikeziwe elinezinyoka ezinesihlungu ikhanda ketshezi ezivezwa nezindlala ekhethekile. Animal ushevu kuyinto enobuthi kakhulu. Ngalo Hedgehog elwa nezitha. Nokho, lesi akusona umsebenzi pedicellariae kuphela - sibonga kubo, inhloli ahlanze umzimba wakho imfucuza futhi ezingcolisa ahlukahlukene, futhi ithumba impango, futhi adlulisele kuso umlomo.

Eyisinambuzane ukuphila ekujuleni kwamamitha abafinyelela kwabayishumi, ikakhulukazi eduze nezixhobo zamakhorali kanye emanzini angasogwini. Naphezu ukutholakala ezihlukahlukene izindlela zokuvikela (the pedicellariae inaliti, zempi), izilwane ngokuvamile yizisulu zezilwane ezinkulu, ezifana ulwandle crab, inhlanzi, izimbaza, ezincelisayo zasolwandle kanye nezinyoni.

Ukukhiqiza kabusha abantu baqala ngemva Ngomnyaka wesithathu ka-ukuphila. Amagciwane Engeke Esaba amaseli eyisinambuzane etholakala eduze ingquza. Breed sea urchin zidla kungenzeka unyaka. Nokho, iningi yokukhwelana kwenzeka esikhathini efudumele sonyaka. Njengoba lezi izilwane zasemanzini kukhona dioecious, zizalela onogwaja simiswe ngalendlela lelandzelako: insikazi abe ezalela amaqanda emanzini angajulile, bese abesilisa umquba. Izigidi-germ cells besilisa wamasende wukukhanya eyisinambuzane zasolwandle, amahora ambalwa jikisa ubuhlalu amancane camera Imicu yotshani mncane. Ngenxa vibration zabo, amaqanda zikwazi ukujikeleza bese ukuhambisa kuzo zonke izindawo. Ngemva kwesikhashana izibungu kuthiwa Ushintshe: welulela, ukwakha mncane kakhulu skeleton calcareous nokucubungula amane ubude. Kusukela ngaleso sikhathi, amaqanda ulahlekelwe buoyancy sabo sangaphambili, wabathwala phezu bacondze etindzaweni letehlukene. Ngesikhathi ezulazulayo futhi baye bathi sebeshintshe ngokuphelele kwenzeka. Ngaphansi kwesithombe senqaba izinqubo kanye pleutusah Kumiswa futhi ithuthukisa ezincane-sea urchin. Ngalesi sikhathi, isibungu lehla kuya ebusweni phansi noma ezinye, populating lesikhala esisha. Uvele emlenzeni wokuqala ngokuqinile exhunywe amatshe, isilwane kuqala ngenkuthalo zikhule.

Ngo emazweni elisogwini the sea urchin uwuhlobo target. Emazweni Mediterranean ikakhulukazi babekwazisa ukudla isidoda isilwane futhi amaqanda. Nokho, lokhu kuyinto umlawuli wekhompyutha uye kumuntu ingozi ethile. Ebhukuda olwandle, futhi, ngephutha wagibela a inhloli, kungasilimaza kakhulu ezinyaweni. Ukubhoboza isikhumba womuntu, izinaliti ngokuvamile aphule, ushiya umzimba amathiphu anobuthi. Ngakho kukhona ubuhlungu obukhulu ehlala njalo amahora amaningana. Isihlungu abanye abameleli lolu hlobo kuyinto enobuthi kakhulu.

Nokho, izinzuzo elingenakuphikwa futhi sea urchin zidla. Baziwa ngokuthi orderlies kolwandle ezijulile, sibonga ikhono lawo okumunca isikhutha, ekunciphiseni senani emkhathini. I ingaphakathi sesilwane evame ukusetshenziswa embonini eyenza imithi ukudala izidakamizwa.