Barnacles. The ndụ okirikiri, amụba

Marine mkpuru osisi barnacles - a ụdị ọrịa cancer barnacles (suborder barnacles). Ndị okenye nke ụdị ndị a kapịrị ndụ, attaching onwe ha ike na-ebupụta. Resettlement ekwe omume nanị na larval ogbo. Ugbu a, a genus agụnye 60 umu.

A mmiri ụmụ anụmanụ na (foto n'okpuru) nwere calcareous shells, nke a na-mmasị ka mkpụrụ. Imi ya mejupụtara efere 6, anọ nke na-etolite a okpu na-enwe ike ịkwaga iche. Crustacean ụgha na ala nke ụlọ ahụ, n'ịnọgide na ụkwụ n'etiti oghe efere. N'ihi ya, ọ na-eme ka ike rhythmic eti eti nke, iji ụgbọala na mmiri n'ime ụlọ nri ahụ.

The n'obosara barnacle esịmde asaa sentimita na a ogologo - 13. agba? Bụ na-emekarị whitish ma ọ bụ grayish na longitudinal ibe nke-acha odo odo ma ọ bụ aja aja.

Barnacle ya sara mbara ọbụ mmasị ọ bụla n'elu - a conch shei, nkume, osisi mgbọrọgwụ, ikpo piers, N'ala nke ụgbọ mmiri, dị ka nke ọma dị ka a dịgasị iche iche nke ụmụ anụmanụ. N'okpuru ebe ị pụrụ ịhụ foto nke mmiri na ụmụ anụmanụ, nke nwere ike itinye ihe mkpuru osisi. The nyagide, nke na-emepụta barnacles, nnọọ ike. Ọ na-alanarị okpomọkụ ruo 200 degrees na bụghị gụrụ alkalis, asịd na ndị ọzọ na solvents.

N'aka nke ya, nnukwu nku barnacles mgbe dozie soft ogbo, n'ihi na nke crustacean ụlọ a pụrụ ịdabere na ntọala siri ike.

The ndụ okirikiri nke oké osimiri mkpuru osisi

Development nke oké osimiri mkpuru osisi mejupụtara ndị na-esonụ nkebi: egg, nwa ahuhu, okenye ịsha. Erùrù abụrụ si àkwá ise n'elu kpam kpam na abụọ nkebi: nauplius na Zypries. Na oyi-mmiri ụdị larval ogbo ekwupụtakwa na 2 izu n'ihu mbụ nke ọnwa, mgbe okpomọkụ - banyere 3-5 ụbọchị.

Larvae ogbo Zypries ghara iri ihe. N'ihi na oge ụfọdụ ha ise n'elu, ma, otu ugboro dị mma ọnọdụ na-mmasị ka mkpụrụ. Adult crabs bụ a ofu ndụ.

Barnacles na-eto eto na-emepe emepe na a pụtara ngwa ngwa ijeụkwụ. Na ogbe, ụfọdụ ụdị ndị na-ama 1-2 izu mgbe edozi iru ntozu okè. Na colder Baltic Sea, ọ na-ewe ọnwa atọ. The afọ ndụ nke krill bụ site 1-2 na 5-7 afọ ma ọ bụ karịa.

Ka ba uba barnacle

N'etiti ndị mmadụ n'otu n'otu ọdụ n'akụkụ, cross-njikọta a rụrụ. Barnacle bụ a hermaphrodite, ya bụ, onye ọ bụla nwere ma nwoke na nwanyị gonads. Near na ala nke n'ihu ụzọ ụkwụ oviducts na-meghere, site na nke àkwá na-emi odude, mgbe ahụ, ịdaba uji eze nke ákwà mgbokwasị. Vas efferens igba n'ime tubular nwoke copulatory ngwa, nke mgbe paired ịgbatị, protruding eyi na n'ime uwe-nwuda oghere nke n'ihu nke onye ahụ. Nye ha na spam fertilizes akwa. Studies e duziri, n'oge nke o doro anya na oké osimiri mkpuru osisi nwere ike mụta nwa naanị. Mgbe njiko spam nwoke na akwa dị iche iche na uwe-nwuda oghere efere ikpokọta ka oviparous na-amalite na ndinuak.

Oyi-kpụrụ onye àkwá ke ndaeyo, ifatilaiza ha na oyi na-esite erùrù si. Okpomọkụ-n'anya mmadụ nile na afọ dina àkwá ọtụtụ ugboro.