UMary Allen
Yiziphi izinhlanzi ezihamba phansi olwandle?
Kunezinhlobo eziningana zezinhlanzi ezaziwa ngokukwazi kwazo ukuhamba phansi olwandle. Lezi zinhlanzi zihlangene zaziwa njengezinhlanzi ezihlala phansi, futhi zitholakala cishe kuzo zonke izilwandle nolwandle emhlabeni jikelele. Izinhlanzi ezihlala phansi ziye zashintsha isethi eyingqayizivele yokuzivumelanisa nezimo ezivumela ukuthi zihambe endaweni eyinkimbinkimbi futhi evame ukukhohlisa etholakala phansi olwandle.
Ziyini izinhlanzi ezihlala phansi?
Izinhlanzi ezihlala phansi, njengoba negama lisho, yizinhlanzi ezihlala phansi noma eduze nangaphansi kolwandle. Ziyaziwa nangokuthi izinhlanzi ze-demersal, futhi zivame ukutholakala emanzini angashoni noma eduze kweshalofu lezwekazi. Izinhlanzi ezihlala phansi zijwayela ukuphila phansi olwandle, lapho zizingela khona izilwane ezizingelayo, zigweme izilwane ezidla ezinye, futhi ziqhudelana ngezinsiza.
Izici zezinhlanzi ezihlala phansi
Izinhlanzi ezihlala phansi zinezici eziningana ezizenza zihluke kwezinye izinhlobo zezinhlanzi. Ngokuvamile ziyisicaba noma zide ngomumo, okuzivumela ukuthi zihambe kalula phansi olwandle. Futhi banamaphiko aqinile, anemisipha abawasebenzisayo ukuze baziqhubekisele phambili futhi baziqondise ezindaweni ezahlukene. Izinhlobo eziningi zezinhlanzi ezihlala phansi ziyakwazi nokuzifihla ukuze zihlangane nendawo ezikuzungezile, okuzisiza ukuba zigweme izilwane ezidla ezinye.
Izinhlobo zezinhlanzi ezihlala phansi
Kunezinhlobo eziningi zezinhlanzi ezihlala phansi ezitholakala olwandle nezilwandle zomhlaba. Ezinye ezivame kakhulu zihlanganisa i-flounder, i-halibut, i-sole, ne-stingrays. Ezinye izinhlobo zezinhlanzi ezihlala phansi zihlanganisa ama-skates, ama-eels, ne-anglerfish. Uhlobo ngalunye lwezinhlanzi ezihlala phansi lunesethi yalo eyingqayizivele yokuzivumelanisa nezimo nokuziphatha okulivumela ukuba liphile endaweni yalo ethile.
Ukuziphatha kokuhamba kwabantu abahlala phansi
Izinhlanzi ezihlala phansi zaziwa ngokukwazi kwazo ukuhamba phansi olwandle. Lokhu kuziphatha kufezwa ngenhlanganisela yokubhukuda, ukukhasa, nokugxuma. Izinhlobo eziningi zezinhlanzi ezihlala phansi zisebenzisa amaphiko azo aqinile ukuze zizisunduzele phansi olwandle, kuyilapho ezinye zisebenzisa imisipha yazo ukuze zikhase noma zigxume amabanga amafushane. Ezinye izinhlanzi ezihlala phansi zikwazi ngisho “ukundiza” eduze kolwandle amabanga amafushane ngokushaya amaphiko azo.
Zihamba kanjani izinhlanzi ezihlala phansi?
Izinhlanzi ezihlala ngezansi zihamba ngezindlela ezihlukahlukene, kuye ngokuzivumelanisa nezimo nendawo ezungezile. Ezinye izinhlanzi zisebenzisa amaphiko azo ukuze zibhukude phansi olwandle, kanti ezinye zisebenzisa imisipha yazo ukukhasa noma ukugxuma. Ezinye izinhlobo zezinhlanzi ezihlala phansi ziyakwazi ukuzimbela esihlabathini noma odakeni bese zilinda inyamazane ukuba ize kuzo. Abanye bayakwazi ukubhukuda amabanga amafushane ngaphezu kolwandle ngaphambi kokuhlala phansi.
Ukuzijwayeza kwezinhlanzi ezihlala phansi
Izinhlanzi ezihlala phansi ziye zashintsha isethi eyingqayizivele yokuzivumelanisa nezimo ezivumela ukuthi ziphile endaweni yazo ethile. Ezinye zalezi zimo zihlanganisa imizimba eyisicaba noma emide ukuze ikwazi ukunyakaza kalula phansi olwandle, amaphiko aqinile okuqhubeleka nokuqondisa, kanye nokuzifihla ukuze kugwenywe izilwane ezidla ezinye. Izinhlobo eziningi zezinhlanzi ezihlala phansi nazo ziyakwazi ukuphefumula umoya, okuvumela ukuba ziphile ezindaweni ezingenawo umoya-mpilo.
Kungani izinhlanzi zihamba phansi olwandle?
Izinhlanzi ezihlala phansi zihamba phansi olwandle ngezizathu ezihlukahlukene. Abanye basebenzisa lokhu kuziphatha ukuze bazingele inyamazane, kuyilapho abanye beyisebenzisela ukugwema izilwane ezidla ezinye noma ukuncintisana ngezinsiza. Ukuhamba phansi olwandle nakho kuvumela izinhlanzi ezihlala phansi ukuthi zihlole indawo yazo futhi zithole izindawo zokuhlala ezintsha.
Yiziphi izindawo ezithandwa yizinhlanzi ezihlala phansi?
Izinhlanzi ezihlala ngezansi zitholakala ezindaweni ezihlukahlukene, kuhlanganise nezixhobo zamatshe, izindawo eziyisihlabathi, nezixhobo zamakhorali. Ezinye izinhlobo zezinhlanzi ezihlala phansi zithanda amanzi angashoni, kanti ezinye zitholakala ezindaweni ezijulile. Izinhlanzi eziningi ezihlala phansi ziyakwazi ukuphila emanzini anosawoti, lapho kuhlangana khona amanzi ahlanzekile namanzi anosawoti.
Ukubaluleka kwezinhlanzi ezihlala phansi
Izinhlanzi ezihlala phansi zidlala indima ebalulekile ezintweni eziphilayo zasolwandle. Ziwumthombo oyinhloko wokudla kwezilwane eziningi ezidla ezinye, kuhlanganise nabantu. Zibuye zisize ekugcineni impilo yezixhobo zamakhorali nezinye izindawo ezibalulekile zasolwandle ngokulawula inani lezinye izinhlobo zezilwane.
Izinsongo ezinhlanzini ezihlala phansi
Izinhlanzi ezihlala ezansi zisengozini ngenxa yezinto ezihlukahlukene zabantu, ezihlanganisa ukudoba ngokweqile, ukucekelwa phansi kwezindawo zokuhlala, nokungcola. Izinhlobo eziningi zezinhlanzi ezihlala phansi nazo zibanjwa ngephutha amanetha okudoba, okungaholela ekwehleni kwabantu.
Imizamo yokongiwa kwezinhlanzi ezihlala phansi
Imizamo yokonga izinhlanzi ezihlala phansi ihlanganisa ukusungulwa kwezindawo ezivikelekile zasolwandle, isilinganiso sokudoba, kanye nokusetshenziswa kwezindlela zokudoba ezisimeme. Imizamo yokunciphisa ukungcoliswa nokuvikela izindawo ezibalulekile zokuhlala nayo ibalulekile ukuze izinhlanzi ezihlala phansi ziphile isikhathi eside. Ngokuvikela lezi zinhlobo ezibalulekile, singasiza ekuqinisekiseni impilo nokusimama kwezilwandle zethu nezilwandle.