Barnacles. Umjikelo wobomi, yokuzala

barnacles yom-Marine - uhlobo lwe imihlaza barnacles (barnacles suborder). Abadala yalo iintlobo ubomi esingatshintshiyo, zizincamathisele indawo nzima. Nokuhlaliswa libakho kuphela kwinqanaba mibungu. Okwangoku, ukuze zibe iquka iintlobo-60.

Ezi izilwanyana zasemanzini (ifoto ngezantsi) kufuneka oonokrwece calcareous, nto leyo iqhotyoshelwe zeendawana. Ukuzika ngokwayo iqulathe iipleyiti 6, ezine ezenza ikepusi kwaye abe nako ukuqhubela bebodwa. Crustacean amanga emazantsi endlwini, ukunamathela amalungu phakathi amacwecwe ezivulekileyo. Ngaloo ndlela yenza ibetha ngamandla zesingqisho, ukuze bayiqhubele amanzi ngaphakathi endlwini kunye amasuntswana ukutya.

Le barnacle bepali ufikelela iisentimitha esixhenxe ubude - 13. imibala idla ezimhlophe okanye nombala ngezithandelo longitudinal ezimfusa okanye mdaka.

Barnacle ematheni zawo ezibanzi eziqhotyoshelwe nawuphi na umgangatho - iqokobhe conch, amatye, iingcambu zomthi, imfumba piers, ezikhondweni iinqanawa, kwakunye neentlobo zezilwanyana. Ezantsi ungabona iifoto zezilwanyana zaselwandle, nto leyo Kukwaqhotyoshelwe yom. Le ngcina, apho iveliswa barnacles, ezinzile kakhulu. It ukumelana lobushushu iqondo 200 lakufumana alkalis, asidi kunye nezinye izinyibilikisi.

Kwelinye icala, ezinkulu amaphiko barnacles badla azinze isiponji ethambileyo, apho indlu crustacean lisisiseko ethembekileyo esiqinileyo.

Umjikelo wobomi yom yolwandle

Uphuhliso yom yolwandle enala manqanaba alandelayo: iqanda, umbungu, yenamvuna abadala. Imibungu asakhulayo ukusuka amaqanda abhabhe ngokukhululekileyo kwaye izigaba ezibini: nauplius kunye Zypries. Kwiintlobo abandayo kwamanzi kwinqanaba mibungu ithatha iiveki ezi-2 phambi kokuba ngolokuqala enyangeni leyo, ngoxa yetropika - malunga 3-5 iintsuku.

Ezidla isigaba Zypries angadli. Kuba ixesha elithile ziyabuya, kodwa, kanye xa iimeko zivuma zincamathele zeendawana. oononkala omdala ubomi esisigxina.

Barnacles ukukhulisa nokuphuhlisa ngesantya ngokwanelisayo ekhawulezileyo. Kwimimandla efudumeleyo, ezinye iintlobo sele kwiiveki 1-2 emva yokulungisa ikhula. In iqatsela koLwandle iBaltic, kuthatha ezintathu iinyanga. Siphila krill ubomi ukusuka kwiminyaka 1-2 ukuya 5-7 okanye ngaphezulu.

Njengoko uyandisa barnacle

Phakathi kwabantu uhleli ecaleni, cross-ibizwa ikhutshwa phandle. Barnacle i Italasi, oko kukuthi, nganye zombini gonads inkunzi nemazi. Kufutshane emazantsi kwisibini phambi imilenze oviducts zivulekile, ibekwe kuyo amaqanda, ngoko eyele em- ingubo. efferens Vas iyangena tubular inkunzi umbutho copulatory, leyo xa zidityaniswe ayinakolulwa, aphumele ngaphandle kwaye kungena yokwaleka em- ngaphambili ngamnye. Nika nabo yobudoda fertilizes iqanda. Kuye kwenziwa, ngexesha apho kwacaca ukuba yom ulwandle nga ande yedwa. Emva kokukhulelwa, amaqela iqanda kwi yokwaleka lweHo- plate ziyadibana oviparous kwaye uqale obukhulu.

Ingqele ibunjwe-amaqanda ngamnye ehlotyeni, ndigalele umgquba nabo ebusika ukuze komnyaka imibungu ngaphandle. abantu Ubushushu-bothando kulo nyaka ukubeka amaqanda izihlandlo eziliqela.