Izinhlanzi zilala kanjani emanzini: izici zezinhlanzi zilala zisuka ekwakhiweni kwazo komzimba

Ukuze uphendule umbuzo othi "Izinhlanzi zilala kanjani?" kuyadingeka ukuqonda izici zesakhiwo sabo se-anatomical.

Uma ubuka izinhlanzi ku-aquarium, kubonakala sengathi aziphumuli, ngoba amehlo azo ahlala evulekile, noma kunjalo, lesi sitatimende asilona iqiniso. Lokhu kungenxa yokuthi izinhlanzi azinawo amajwabu amehlo azo zodwa. Ijwabu leso liyisitho esisizayo seso, umsebenzi oyinhloko owukuvikela ngokumelene namathonya angaphandle nokomisa. Lesi sakamuva asesabi neze izinhlanzi emanzini.

Nokho, izinhlanzi ziyalala, nakuba lokhu kuhlukile ekuqondeni kwethu ubuthongo obujulile nobungenandaba. Ngeshwa, izici zesakhiwo somzimba wabo, kanye nendawo yazo yokuhlala, zivimbela izinhlanzi ukuba zilale ubuthongo obukhulu, lapho zizobe zinqanyuliwe ngokuphelele eqinisweni.

Ihluke kanjani ukulala kwezinhlanzi?

Kungcono ukuqoka lesi simo njengenkathi yomsebenzi ophansi. Kulesi sikhundla, izinhlanzi empeleni azihambi, nakuba ziqhubeka nokubona yonke imisindo futhi zilungele ukuthatha isinyathelo nganoma yisiphi isikhathi. Ngokungafani nezilwane eziningi ezincelisayo, umsebenzi wobuchopho wezinhlanzi awushintshile ngesikhathi sokuphumula. Yingakho ke abalali kahlenjengezinye izilwane, zifika njalo zisesimweni sokuqwasha.

Ngakho ziyini zonke izinhlanzi ezifanayo ezilele? Uma uzibheka ngokucophelela ku-aquarium, uzokubona lokho ngezikhathi ezithile izinhlanzi ziba yiqhwa emanzini enganyakazi. Inhlanzi kulesi simo ingabizwa ngokuthi ilele.

Ngokuya ngezinhlobo, inhlanzi ngayinye inesikhathi esiqondile sokulala. Isikhathi sosuku lapho izinhlanzi ziphumula khona zithonywa indawo ezungezile nezimo zokuphila, kanye nendlela yokondla. Isibonelo, izici ezinjalo zingase zibe ukukhanya kwamanzi, i-viscosity kanye nokuminyana, ukujula kokuhlala, kanye nesivinini sokugeleza. Ukuhlukanisa izinhlanzi ngokwesikhathi sosuku sokuphumula, singakwazi ukuhlukanisa:

• izinhlanzi ze-diurnal - ezithanda ukukhanya. Lokhu akusho ukuthi bafuna ukulala ebusuku, lokhu kubonisa ukuthi ukwakheka kwamehlo abo ibavumela ukuthi babone kangcono emanzini emini, nasebumnyameni - baphumula ngangokunokwenzeka;
• izinhlanzi zasebusuku - twilight. Lezi zinhlanzi zibona kahle ebumnyameni, nokho, amehlo azo angazwela kakhulu emini, ngakho azama ukuphumula emini. Izinhlobo eziningi zezilwane ezidla ezinye ziyizinhlanzi zasebusuku.

Ngenxa yokuthi izinhlanzi zilala, ungakwazi ukunquma ukuthi zingaphansi kwaliphi ikilasi.

Zilala kanjani izinhlanzi zesigaba samathambo?

Izinhlanzi ezivela esigabeni samathambo ziphumula ezindaweni ezolile nezithule. Bangakwazi ukuhlala ngesikhathi sokulala ezindaweni ezihlukahlukene ezithakazelisayo. Ngokwesibonelo:

• i-cod itholakala eceleni noma esiswini kuya phansi;
• i-herring ilenga ibheke phansi noma ibheke phansi kukholamu yamanzi;
• i-flounder, ilungiselela ukuphumula, igubha esihlabathini.

Ngaphambi kokunciphisa umsebenzi wabo, izinhlanzi hhayi kuphela ukukhetha isikhundla sokuphumula, kodwa futhi uzame ukunakekela ukuphepha kwabo. Ngokwesibonelo, inhlanzi yopholi ehlala ezindaweni ezishisayo izungeza ifu lamafinyila ukuze umhlaseli ungawunuki.

Zilala kanjani izinhlanzi zesigaba se-cartilaginous?

Ukuthola indawo yokulala evumayo yezinhlanzi ezine-cartilaginous kunzima kakhulu kunezinhlanzi zamathambo. Lobu bunzima bubangelwa futhi umehluko wesakhiwo somzimba wabo. Ake sizicabangele ngokuningiliziwe.

Izinhlanzi ezinobhontshisi, ngokungafani nezinhlanzi ze-cartilaginous, zinesinye sokubhukuda. Isinye sokubhukuda siyisimila somphimbo, ngamagama alula - isaka eligcwele umoya. Umsebenzi wayo oyinhloko ukusiza izinhlanzi zihlale ekujuleni okuthile. Ukuze wehlele phansi inhlanzi iphephetha omunye womoya, futhi uma ukhuphukela phezulu - ukuzuza. Izinhlanzi, ngosizo lwe-bubble, zivele "zilenga" emanzini ekujuleni okudingekayo. Izinhlanzi ze-cartilaginous azinalo leli khono, ngakho-ke zidinga ukuhlala zihamba. Uma eyeka, ngokushesha uyacwila futhi awe phansi.

Kodwa-ke, ngisho naphansi, isigaba sezinhlanzi ze-cartilaginous asikwazi ukuphumula ngokuthula. Konke lokhu kungenxa yesakhiwo sezinyosi zabo. Izembozo ze-gill zithuthukiswa kuphela ekilasini lezinhlanzi ezinamathambo. Ngokwesibonelo, oshaka be-cartilaginous banemifantu esikhundleni samagill. Ngokunjalo, oshaka abakwazi ukuhambisa amathambo abo. Ukuze amanzi agcwale umoya-mpilo odingekayo ukuze angene ezimbotsheni zegill, ushaka kufanele ahlale enyakaza, ngaphandle kwalokho angase aphefumule.

Izinhlanzi ze-cartilaginous zixazulula le nkinga ngezindlela eziningana.

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Kukhona izinhlanzi eziphumule ngokunyakaza. Ngokwesibonelo, isakhamuzi sasoLwandle Olumnyama katran akalokothi ame. Umgogodla walo shaki unesibopho somsebenzi wemisipha yokubhukuda, ngakho-ke, lapho ubuchopho busesimweni sokuphumula, i-katran iyaqhubeka ihamba.