Lamprey River - uhlobo engenazo izilwane ezidla ezinye amagciwane ukuthi liye lalondolozwa kusukela endulo

Lamprey River utfolakala kuluhlobo zezinhlanzi cyclostomes (Cyclostomata), lampreys subclass (Petromyzones). It uhlala phezu kwemifula. ERussia, sibaluleke kwezohwebo.

It has an, umzimba snake-like side lide mayelana 40 cm, embozwe lwamafinyila isikhumba elingenalutho. Umbala wakhe amnyama-grey ne sheen metallic. Umlomo prisasyvatelnoy agcinwe hopper, emaphethelweni zazo zitholakala olimini namazinyo. Jaws cha. Phezu kwekhanda has ayibhangqiwe acinene ukuvulwa. Amehlo akhe ayemathathu, ezimbili zazo ngokuvamile athuthukile, kanti eyesithathu ubona ukukhanya kuphela, ngenxa ukungabikho lens.

Ukuphefumula inikezwa yi amabhangqa ayisikhombisa ohlotsheni branchial izikhwama esisogwini emaphethelweni umzimba kanye nokuvula kwangaphandle. Uhlaka lwamathambo siqukethe uqwanga. Sintanta, eguqa umzimba, cishe kuhle kwenyoka. amaphiko amabili amaphiko (akuvamile eyodwa), caudal ravnolopastny fin, basuke bonke kusekelwa imisebe cartilaginous. amaphiko abhanqiwe ayinakho lamprey emfuleni. Photo libonisa ezinhle zalo.

Lamprey River luhlukaniswe bushing (ayehlala ezindaweni ezisogwini sea desalinated futhi eziyizimbangela emifuleni) kanye nomnyango eyodwa (abahlala nemifula).

Lamprey River - uhlobo yesilwane esiphila ngenyama amagciwane. Usuthisa ngu ukuncela ukuba abebehlala aqueous bathambekele izinhlanzi ngokudonsa ngaphandle benyama negazi. Yena oyisiminzi, omunye ukuncela inkomishi, engahlala izinsuku eziningi, okwenza ikwazi ukudonsa aphume isisulu kungcono kakhulu isisindo sabo. Izinhlanzi eziningi ngemva ezinjalo "inkhulumomphendvulwano" die yamanxeba akhe, njengoba igazi labo uthola ikhemikhali kuvimbela ekunqandeni.

Ngonyaka owandulela zidala lamprey emfuleni iyeke udle. Ngo umzimba wayo kukhona izinguquko eziphawulekayo: elilulaza amathumbu, indlala salivary afe, amaphiko amaphiko iyahlanganiswa zibe munye, insikazi livela fin anal namaqanda kwakhiwa, futhi iduna - papilla zangasese kanye nobisi. Ubude nesisindo bobubili ubulili incipha.

Okusakazwa emfuleni lamprey kulezi zingxenye lomfula nge phansi asheshe amanje nawesikhathi pebbly, at ukujula. Phakathi zidala, iduna yakha isidleke ngokumba izimbobo phansi. Female sonke isikhathi elintantayo phezu kwakhe, ngokuthinta isisu zekhanda lakhe, sengathi ezijabule. Ekugcineni-ke kancane nje kwenza lokho okushilo kugxile imbobo. Lapho seziqediwe, iziNcwadi zesifazane inamathela ngokwayo ukuze edwaleni eduze esidlekeni, futhi iduna linamathela ke, kancane kancane displacing indebe ukuncela ukuze ohlangothini ikhanda nomsila ezisonga emhlabeni wakhe. Imikhiqizo ka nezindlala zokuzala befakwa kanyekanye. Ngemva zidala, umbhangqwana kufihliwe yamadwala futhi ngokushesha uyafa.

Of amaqanda, okuyinto engaphezu kwengu-20 eziyinkulungwane, 2 amaviki izibungu avele ngokuthi peskoroykami. Babukeka njengezihlahla worm encane umbala aphuzi. Mayelana 4 izinsuku becasha phakathi amadwala asekujuleni emfuleni, wafinyelela 6 mm ubude, wangcwatshwa odakeni. izinsuku ezingu-15 izibungu ushiye yokucasha wakhe indawo uhambe ukugeleza, ephumula lapho uyongcwatshwa odakeni udle ulwelwe izinsalela. Isigaba elalikudle lapho liseyisibungu ihlala iminyaka engaba ngu-5. Ngemva yokuguqukela kwesinye isimo kwenzeka omdala esiteji, phakathi kwesikhathi lapho amagciwane ku emfuleni lamprey nezinye izakhamuzi emfuleni.

Lokhu cyclostomes izinhlanzi omubi iphendula ukukhanya. Kususelwa ukuthi ukudoba yayo. Abadobi eyehlisiwe nhlangothi zombili emfuleni izibani eqinile ukuze phakathi kwaba ndima amnyama, futhi usethe ugibe Ubamba nokuwa.

Phakathi nale nkathi, umfula lamprey ine omuhle kakhulu izimfanelo ukunambitheka. Futhi uma ucabangela ukuthi amathambo Bile wakhe namathumbu kungenjalo, khona-ke lena umkhiqizo ephelele edliwayo lonke. Ngaphambi ukupheka it is bahlanza of isikhwehlela futhi ethosiwe emapanini, ngezinye izikhathi pickled.