Izindawo zokuhlala nezindawo zokusabalalisa
Oshaka bangatholakala cishe kuzo zonke izilwandle nezilwandle zomhlaba. Nokho, ukusatshalaliswa kwayo ngokwendawo kuyahlukahluka kuye ngokuthi uhlobo oluthile. Abanye oshaka bathanda amanzi ashisayo ashisayo, kanti abanye bafaneleka kangcono emanzini abandayo olwandle i-Arctic ne-Antarctic. Kukhona noshaka abahlala emanzini anosawoti, njengamachweba nemilomo yemifula.
Oshaka bayizilwane ezikwazi ukuzivumelanisa nezimo ngokwedlulele futhi bangatholakala ezindaweni ezihlukahlukene zokuhlala, kusukela olwandle kuya ekujuleni kwalasha. Abanye oshaka bathanda izindawo ezingasogwini, kanti abanye bavame kakhulu emanzini avulekile noma ogwini.
Izinhlobo ezishisayo nezishisayo
Amanzi ashisayo ashisayo nashisayo ayikhaya lezinhlobo eziningi zoshaka. Phakathi kwezinhlobo ezaziwa kakhulu ezikhetha lezi zindawo i-tiger shark, i-hammerhead shark, ne-bull shark.
- I-tiger shark: Lolu hlobo luvame ukutholakala eduze nogu lweziqhingi nasezindaweni ezinamakhorali nezixhobo.
- Ushaka we-Hammerhead: Ikhetha izindawo ezinamanzi afudumele nangashoni, futhi kuvamile ukuyithola eduze nogu nasemaphethelweni esihlabathi.
- Bull shark: Lolu hlobo lungabekezelela amazinga aphezulu kasawoti futhi lutholakala ezindaweni ezishisayo nezishisayo, emilonyeni yemifula, nasezindaweni ezisogwini.
Izinhlobo emanzini abandayo
Ezifundeni ezibandayo, njengolwandle lwase-Arctic ne-Antarctic, oshaka nabo bayavela. Izinhlobo ezimbili eziphawulekayo kulezi zindawo ushaka olala eGreenland kanye noshaka obizwa ngokuthi i-basking shark.
- Greenland sleeper shark: Lolu hlobo luhlala emanzini abandayo eNyakatho ye-Atlantic kanye ne-Arctic, futhi lujwayele ukukwazi ukumelana namazinga okushisa aphansi kakhulu.
- Ukubhaka ushaka: Nakuba ingase itholakale emanzini afudumele, i-basking shark ivame ukutholakala emanzini apholile eNyakatho ye-Atlantic kanye ne-Southern Ocean.
Izinhlobo Zokujula Kwe-Abyssal
Ekujuleni kolwandle, lapho ukukhanya kwelanga kungafinyeleli khona futhi izimo zinzima kakhulu, kusenezinhlobo zoshaka ezikwazile ukuzivumelanisa nezimo. Izinhlobo ezimbili ezaziwa kakhulu yi-eel shark kanye noshaka womlomo omkhulu.
- Ushaka we-Eel: Lolu hlobo luhlala ekujuleni okungaphezu kwamamitha angu-1,000 futhi lwaziwa ngomzimba walo omude kanye ne-dorsal fin enweba cishe bonke ubude bomzimba.
- ushaka womlomo omkhulu: Loshaka ongaqondakali uhlala ekujuleni okungamamitha angu-600 kuya kwangu-1,500 futhi waziwa ngokudla okunamandla.
Izici ezithonya ukusatshalaliswa kwayo
La ukusatshalaliswa kwendawo oshaka kuthonywa izinto eziningi, okuhlanganisa izinga lokushisa kwamanzi, usawoti omningi, ukutholakala kokudla, nokuba khona kwenkulisa nezindawo ezizalela kuzo.
Ngaphezu kwalokho, i ukulondolozwa koshaka wudaba olubucayi okufanele lucatshangelwe. Ukudoba ngokweqile kanye nokucekelwa phansi kwezindawo zokuhlala kungaba nomthelela omubi kubantu boshaka emhlabeni jikelele.
Ukubaluleka kokongiwa
La ukulondolozwa koshaka kubalulekile hhayi kuphela ezinhlotsheni ezahlukene, kodwa futhi ukugcina ibhalansi ku-ecosystem yasolwandle. Lezi zilwane ezidla ezinye zidlala indima ebalulekile ekulawuleni i-ecosystem, njengoba zisiza ukulawula inani lezinye izinhlobo zezilwane futhi zigcine ukuhlukahluka kofuzo emiphakathini yazo. Kubalulekile ukuzivikela nokulondoloza izindawo zazo ukuze kuqinisekiswe ukuqhubeka kwalezi zilwane ezithakazelisayo.