Izici nendawo okuhlala kuyo ama-oysters
Ama-oysters basekilasini lama-molluscs asolwandle. Ezweni lanamuhla, kunezinhlobo ezingama-50 zalezi zakhamuzi ezingaphansi kwamanzi. Abantu bebelokhu bekusebenzisa ukudala ubucwebe, ubuciko obuhle bokupheka kusukela kudala.
Ukwenza ngcono ukunambitheka kwama-oysters, abakhiqizi bavame ukuwafaka emanzini olwandle amsulwa ane-algae ekhethekile. Ngokwesibonelo, ama-oysters aluhlaza okwesibhakabhaka igobolondo ngonyaka wesibili nowesi-3 wempilo lifakwa kabusha ethangini eliqukethe ubumba oluhlaza okwesibhakabhaka. Le nqubo yenziwa ukuze uyicebise ngamavithamini nezinto ezincane.
Iningi izimbaza zegobolondo bathanda ukuhlala olwandle lwezindawo ezishisayo nezisendaweni eshisayo. Yize kunezinhlobo ezithile ezehlukile kulo mthetho. Bahlala olwandle olusenyakatho.
Amanzi angajulile asogwini yindawo yawo yokuhlala eyinhloko. Ezinye izinhlobo zingatholakala ekujuleni okungafika kumamitha angama-60. Phansi kwezilwandle, lapho kuhlala khona ukhwathu, ebonakala ngomhlabathi onzima. Bahlala emakoloni, bakhetha izindawo ezinamadwala noma amatshe.
Isici esihlukile sale mollusk yi-asymmetry yegobolondo. Ifika ezinhlotsheni ezahlukahlukene: iyindingilizi, ingunxantathu, imise okwekhanda noma inde. Konke kuncike endaweni yokuhlala. Ama-oysters ahlukaniswe ngamaqembu ama-2: ayisicaba (anegobolondo eliyindilinga) futhi ajulile. Amafulethi ahlala ezingxenyeni ezingasogwini lwe-Atlantic naseMedithera, kanti ezijulile yizakhamizi zasePacific Ocean.
Umbala walezi "zakhamuzi zasolwandle" nawo uhlukile: ulamula, okuluhlaza okotshani, obomvana noma onsomi. Inhlanganisela ehlukahlukene yezimo nemibala kungabonakala kuyo isithombe se-oyster... Ubukhulu balezi zidalwa buhlukile, ngakho-ke i-bivalve oyster zikhule zifike ku-8-12 cm, ne-oyster enkulu - 35 cm.
Umzimba wabo uvikelwe yigobolondo elikhulu lamalola ekhaliphile, eliqukethe ama-valve amabili: elingezansi liyi-convex futhi likhulu, elingenhla liphambene ngokuphelele (liyisicaba futhi lincane). Ngosizo lwengxenye engezansi yegobolondo, imollusc ikhula iye phansi noma ezihlotsheni zayo futhi ihlale inganyakazi impilo yayo yonke. Njengoba ama-oysters avuthiwe ngokocansi ahlala anganyakazi, kungokwemvelo ukuthi ama-annelids nama-bryozoans ahlala ebusweni begobolondo lawo.
Ama-valve egobolondo axhunywe uhlobo oluthile lokuvalwa kwemisipha. Isebenza njengesiphethu. I-oyster ivala ama-valve ngakho konke ukusikwa kwale misipha. Itholakala maphakathi nosinki. Ingaphakathi likasinki limbozwe ukuqhakaza kwe-matte limestone. Kwabanye abameleli besigaba se-bivalve, lolu ungqimba lune-peenlescent sheen, kepha ngaphakathi, kepha igobolondo le-oyster alinayo.
Amagobolondo ambozwe ngengubo. Ama-gill anamathiselwe engxenyeni yesisu yomgoqo wengubo. I-oyster ayinazo izimbobo ezikhethekile, njengezinhlanzi, ezingaxhuma umgodi wengubo nemvelo. ngakho-ke ukhwathu ovulekile njalo. Imifudlana yamanzi iletha umoya-mpilo kanye nokudla emgodini wengubo.
Isimo nendlela yokuphila oyster
Ama-oysters akha amakoloni akhethekile. Esikhathini esiningi, "izindawo zokuhlala" zabo zihlala endaweni yasogwini engamamitha ayisithupha. Uhlobo lwemizi enjalo lungezinhlobo ezi-2: amabhange ama-oyster kanye nama-oysters asogwini.
Okufanekisiwe igobolondo le-oyster eluhlaza okwesibhakabhaka
Ake siqonde la magama. Amabhange ama-Oyster yizinkumbi zama-oysters akude nolwandle futhi ayizindawo eziphakeme zama-molluscs. Okusho ukuthi, ezingxenyeni ezingezansi zama-oysters amadala, kudalwa indawo entsha evela kubantu abasha.
Uhlobo olunjalo lwama "piramidi" luyakhiwa ezindaweni ezivikelwe ekushayweni kwamatheku namabhayi. Ukuphakama kwalezi zakhiwo kuya ngeminyaka yekoloni. Ngokuphathelene nabahlali bama-oyster asogwini, izindawo zokuhlala ezinjalo zinwebeka esiqeshini esincane ezindaweni ezingezulutho.
Lapho kufika ubusika, ama-oyster angenamanzi ayiqhwa. Ngokufika kwentwasahlobo, bayancibilika baqhubeke nokuphila, kube sengathi akwenzekanga lutho. Kepha uma i-oyster efriziwe izanyazanyiswa noma yehliswa, kulokhu bayafa. Lokhu kungenxa yokuthi ingxenye ethambile ye-oyster ibuthaka kakhulu lapho iqandisiwe futhi iphuka lapho inyakaziswa.
Ama-oysters anokuphila okumatasa kakhulu, njengoba kungabonakala ngaphandle. Banezitha zabo nabancintisana nabo. Ama-Scallops noma izimbaza angaba izimbangi zokudla. Izitha zama-oysters akusibo abantu kuphela. Ngakho-ke, kusukela ngama-40s wekhulu elidlule, abantu baqala ukukhathazeka ngalo mbuzo, okuyinto imollusk yachitha imbaza yoLwandle Olumnyama... Kwavela ukuthi lesi sitha asisona ngisho nesakhamuzi somdabu soLwandle Olumnyama.
Ngakho komunye wemikhumbi kwafika imollusk eyingozi - i-rapana. Lesi sidalwa esingezansi sidla ama-oysters, izimbaza, ama-scallops nokusika. Ubhola igobolondo lesisulu nge-radula grater bese ekhipha ubuthi emgodini. Ngemuva kokuthi imisipha yesisulu ikhubazeke, i-rapana iphuza okuqukethwe okugaywe uhhafu.
Ukudla kwe-oyster
Izitsha eziyinhloko zemenyu ye-oyster yansuku zonke yizinhlayiya ezincane zezitshalo nezilwane ezifile, ulwelwe lwe-unicellular, amabhaktheriya. Zonke lezi "zidliwayo" zintanta kukholamu lamanzi, futhi ama-oysters ahlala alinde ukuthi umfudlana ubathumele ukudla. Ama-gill, mantle kanye ne-ciliary mechanism yemollusk ayabandakanyeka kunqubo yokuphakelwa. I-oyster imane ihlunga umoya-mpilo nezinhlayiya zokudla emfuleni.
Ukuzala kanye nesikhathi sokuphila sama-oysters
Ama-oysters izidalwa ezimangalisayo. Empilweni yabo yonke, bayakwazi ukuguqula ubulili babo. Izinguquko ezinjalo ziqala eminyakeni ethile. Izilwane ezisencane zivame ukwenza ukuzala kwazo kokuqala njengendoda, futhi ngesikhathi esilandelayo zizoguqulwa zibe ngowesifazane.
I-oyster pearl ebonisiwe
Izilwane ezisencane zizalela amaqanda angaba yizinkulungwane ezingama-200, nabantu abavuthiwe abaneminyaka yobudala engama-3-4 - amaqanda afinyelela ezinkulungwaneni ezingama-900. Insikazi ichamisela amaqanda kuqala engxenyeni ekhethekile yomgodi wengubo, bese kuphela lapho iwafaka emanzini. Abesilisa bakhipha isidoda ngqo emanzini, ukuze inqubo yokukhulelwa yenzeke emanzini. Ngemuva kwezinsuku eziyi-8, izibungu ezintantayo - i-veliger zizozalwa kula maqanda.
Kunezinhlobo zama-oysters angawajikijeli amaqanda awo emanzini, kepha awashiye emgodini wengubo yowesifazane. Izibungu zichanyuselwa ngaphakathi kukamama bese ziphumela emanzini. Lezi zingane zibizwa ngokuthi ama-trochophores. Ngemuva kwesikhashana, i-trochophore iphenduka i-veliger.
Isikhathi esithile, izibungu zisazobhukuda kukholamu lamanzi, zifuna indawo ethokomele yokuhlala kwabo okuhlala phansi. Abathwesi abazali babo umthwalo wokuzinakekela. Izingane zizondla zodwa.
Esithombeni Oyster Black Sea
Ngokuhamba kwesikhathi, bakha igobolondo nomlenze. Esibungwini esintantayo, umlenze uqondiswa phezulu, ngakho-ke, lapho uzinza phansi, kufanele ujike. Ngesikhathi sohambo lwaso, lesi sibungu siyashintshashintsha sikhasa ngezansi nokubhukuda. Lapho kukhethwa indawo yokuhlala unomphela, umlenze wesibungu ukhipha isinamathelisi, kuthi imollusk ime endaweni yayo.
Inqubo yokulungisa ithatha isikhashana (imizuzu nje embalwa). Ama-oysters izidalwa eziqinile impela. Bayakwazi ukwenza ngaphandle kolwandle amasonto ama-2. Mhlawumbe ngenxa yalesi sizathu, abantu babadla bephila. Isikhathi sabo sokuphila sifinyelela eminyakeni engama-30.
