KumiswaIsayensi

Ukwahlukanisa izinhlanzi: ngesisekelo taxonomy nezibonelo

Fish zithuthumela izakhamuzi emangalisayo zezwe zamanzi. Lena enye yezindawo ezinkulu kakhulu futhi ezihlukahlukene kakhulu amaqembu izilwane. izici ehlukile ye isakhiwo, ngezigaba kanye nezici inhlanzi, wafaka osekelwe kuyo, kuzoxoxwa ngakho esihlokweni sethu.

Superclass Pisces: izici jikelele

Shono nje abantu unethemba ukuqhathanise lezi zilwane. Khuluma kubo: "Ngizizwa sengathi sengifana inhlanzi emanzini." Kwaba njalo ngempela, izinhlanzi unezici kwesakhiwo okubenza bakwazi kahle lokhu imvelo. Lezi zihlanganisa izinto zihambe kahle umzimba shape, khona amaphiko futhi izikali, isikhumba isikhwehlela-ocebile nokuphefumula kwezimila gill.

Basics of ngezigaba

Lezi zilwane zasemanzini angaqoqwa ngokuvumelana nezimfuno ehlukahlukene. Okokuqala, inhlanzi kubhekwa esigabeni izici kwesakhiwo. Kuye lesi sigaba avelele uqwanga bone. abameleli zokugcina abe izici eziningi eziphambili isakhiwo kanye namandla. Ngakho-ke, phakathi lobu bunye ehlelekile namanje ukwaba eziningana amayunithi.

Ngokusho emkhakheni ukusetshenziswa ovelele izinhlanzi Ornamental nokudla. indoda Okokuqala yakhulela okugcinwa namachibi njengendlela umhlobiso zokuhlobisa. Lokhu fish, Catfish, neon, guppies, enameva, nabanye abaningi. Commercial izinhlanzi indoda ezifuywa ukudliwa abantu. Sekuyisikhathi eside inyama yabo kanye namaqanda kukhona uju ozithandayo, namafutha - umuthi ezibalulekile.

Kukhona ngezigaba kwemvelo zezinhlanzi. Ucabangela izimo kwendawo yazo. Kungenzeka izinhlobo ezahlukene machibi: fresh, zolwandle.

Caught enkulu izinhlanzi kanye ...

Ukwahlukanisa izinhlanzi commercial uyakucabangela futhi ubukhulu. Kusukela lesi sici incike indlela bamba futhi isitoreji okwalandela of izinto zokusetshenziswa. Ngu nobukhulu ukuhlukanisa amancane, aphakathi nendawo kanye inhlanzi enkulu. Ngayinye yalezi amaqembu unezimfanelo yayo ezibalulekile. Ngokwesibonelo, sprats kuhluke ukunambitheka omuhle kakhulu futhi kabanzi endaweni yokudla, naphezu usayizi encane kakhulu.

Ukuze izinhlanzi commercial izindawo ukudla zibaluleke ngokukhethekile. Ngakho-ke, zihlukaniswa inani amafutha. Ngokwesibonelo, i-cod, i-hake navaga futhi le nkomba ingeqi 4%. zinhlobo okunjalo abhekwa ephansi fat noma izacile. Izinga eliphakeme ngesisekelo sprat uthathwa, mackerel, i-herring, saury, Sturgeon futhi stellate Sturgeon. namanoni azo ingxenye kakhulu lidlula ezingeni 8%.

I Lezimpahla Ucwaningo wasebenzisa umqondo "kwezinhlobo" futhi "umndeni." Fish, inhlanzi ngezigaba kunqunywa imikhuba zokuhweba kaningi esekelwe izimpawu zangaphandle. Ngokwesibonelo, umndeni Herring iletha, lapho umzimba singatsheki onomfutho futhi kuwa ngokukhululekile. inhlanzi okunjalo beswela lateral line. Banezinhliziyo olulodwa amaphiko fin nomsila has a notch ehlukile. Lo mndeni kuhlanganisa herring, sprat, sprat, sprats.

ngezigaba yokwakheka zezinhlanzi: etafuleni

Kukholakala ukuthi uma yizigaba zezinhlanzi ziyabhekelelwa kuphela izici isakhiwo skeleton. Kodwa lokhu akulona iqiniso. Basics ngezigaba yokwakheka zinikwa etafuleni.

Izimpawu ukuqhathanisa Class zezinhlanzi cartilaginous Class of Bone Fish
Isakhiwo skeleton uqwanga owakheke ngokugcwele Isakhiwo kuhlanganisa ithambo skeleton
Ukuba khona nesembozo gill Akekho, gill izimbotshana wavula ukuvuleka nibonakala ahlukene Yethula, ukuvikela gills futhi bahileleke ukunyakaza zokuphefumula
ukubhukuda esinyeni Ayikho kukhona
Uhlobo sokukhulelwa nokuthuthukiswa Langaphakathi, oqondile Ngaphandle, engaqondile
Izici gqamisa I Amapayipi wokugaya ukudla, wokuzala kanye nokuya excretory abelwe le cloaca Cloaca ayitholakali, isimiso somzimba semithambo ngamunye kuvula imbobo siqu

ukukhahlamezeka kwendawo

Ukwahlukanisa izinhlanzi izindawo futhi ichaza amaqembu amaningana. Eyokuqala abakhileyo zasolwandle. It ulwe, inhlanzi, i-halibut, mackerel, ama-cod. inhlanzi Amachibi kukhona carp, Sturgeon, carp, umbokwane, carp. Bachitha izimpilo zabo wonke e engokwemvelo lapho kukhona zidala yabo. imisebenzi ebalulekile ala maqembu incike usawoti kwemvelo. Ngakho, uma izinhlanzi zasolwandle uthuthe ku amanzi ahlanzekile, basheshe bafe.

ezifudukayo izinhlanzi

inhlanzi olwenzeka endaweni ngezigaba kanye yokuphila kuhlanganisa elinye iqembu okuthiwa i-Globe. Kuhlanganisa abameleli superclass ezihlala olwandle kodwa eziyizimbangela ngamanzi agobhozayo lisuka. Lokhu Sturgeon kanye salmon. inhlanzi okunjalo anadromous abizwa ngokuthi anadromous. Kodwa eels ngesikhathi zidala ojikelezayo kolunye uhlangothi - kusukela nasemfudlaneni ngaseLwandle. Lezi yizona ezimelela ejwayelekile zezinhlanzi catadromous.

Ngokwenza lokhu endleleni enzima, abameleli ukuhamba-ngokusebenzisa iphelelwa amandla amaningi. Sinenkosi nehlombe, ukunqoba Rapids, izimpophoma. Sonke lesi sikhathi bengadli, bese besebenzisa inqolobane yalo fat kanye nezakhi. Ngakho-ke, izinhlanzi eziningi ezifudukayo ukubhukuda esikhundleni imifanekiso, eziyizimbangela futhi bafe. Indawo unomphela yokuhlala emuva kakade izingane. Kusengenzeka imfihlakalo kanjani izinhlanzi ukuthola indlela yabo ekhaya. Abanye bayakwazi eziyizimbangela izikhathi eziningana phakathi nesikhathi sokuphila kwawo. Phakathi zidala zezinhlanzi metamorphoses eziningi zangaphandle. Ngokwesibonelo, ama-salmon ikhula idolo emhlane wakhe, emhlathini agobile.

Ngakho, Ukwahlukaniswa izinhlanzi okusekelwe izici eziningana. Lawa izici skeleton kanye Sakhiwo sangekhatsi, usayizi, lokucuketfwe fat, ukukhahlamezeka kwendawo, yokuphila, ububanzi bokusebenzisa.

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