Inkcazo ebonakalayo ye-otters yolwandle
Las IiOtter zolwandle Bangamalungu osapho lwe-mustelid, olukwabandakanya i-skunks kunye neebheji. Ngokungafaniyo nezalamane zabo ezininzi, ii-Sea Otters ziqhelene kakuhle nobomi baselwandle. Enye yezona zinto ziphawuleka kakhulu yidyasi yayo enomtsalane, esesona silwanyana sixineneyo kuzo zonke, ezinoboya obufikelela kwisigidi kwi-intshi nganye. Obu boya buzigcina zigqunyiwe kwaye zishushu kumanzi olwandle abandayo.
IiOtters zolwandle nazo zohluka kakhulu ngobukhulu, njengoko ubude bomzimba wabantu abadala bunokwahluka ukusuka kwi-1 ukuya kwi-1,5 yeemitha kwaye badla ngokuba nobunzima obuphakathi kwe-14 kunye ne-45 yeekhilogram. Umzimba wayo mde kwaye u-cylindrical, imilenze yayo mifutshane kwaye inomsila omde, onezihlunu.
Indawo yokuhlala kunye nokuhanjiswa kweeotter zaselwandle
Indawo yokuhlala yendalo ye iiotter zolwandle Ifumaneka kumantla nakumanxweme asempuma kuLwandlekazi lwePasifiki. Ukusuka eJapan, ukunqumla iBering Strait ukuya eAlaska, emva koko ukuya kumazantsi eBaja California eMexico. Bakhetha unxweme olunamatye kunye ne-kelp okanye i-kelp reefs, apho banokufumana intabalala yokutya kunye namathuba okudlala kunye nokuphumla.
Ngaphambili, iiotter zaselwandle zazinoluhlu olubanzi kakhulu, kodwa ukuzingela ngamandla ngenkulungwane ye-18 neye-19 kwabenza bafikelela esiphelweni sokuphela. Ukusukela ngoko, abantu baye baqalisa ukuchacha ngenxa yeenzame zolondolozo kunye nokhuseleko lomthetho.
Ukutya kunye nokuziphatha kokutya kweeotter zaselwandle
Iiotter zaselwandle zidume ngokuthanda ukutya nokukwazi ukusebenzisa izixhobo, uphawu oluzahlula kwezinye izilwanyana zaselwandle. Ukutya kwabo okuphambili kuqulethwe ngama-invertebrates olwandle, kuquka
- oononkala
- iiurchins zolwandle
- iimbaza
- iimbaza
Zidla ngokusebenzisa amatye okanye ezinye izinto eziqinileyo ukophula amaqokobhe ezi zilwanyana.
Ubungakanani bokutya abakufunayo ukuba bakutye suku ngalunye buyakhwankqisa, kufuneka batye phakathi kwe-20 kunye ne-30% yobunzima bomzimba wabo suku ngalunye ukugcina i-metabolism yabo iphezulu kunye nokugcina ubushushu bemizimba yabo.
Ukuveliswa kunye nobomi bentlalo yee-otter zolwandle
Ii-otters zaselwandle zizidalwa zentlalo kwaye zihlala zifumaneka kumaqela, abizwa ngokuba "yi-rafts," enokubandakanya naphi na ukusuka kwii-otters ezimbalwa ukuya kumakhulu. La maqela ahlala ahlulwe ngokwesini, kunye ne-otters yamadoda kwii-rafts ezahlukeneyo kwiimazi kunye namantshontsho.
Iiotter zolwandle zinenkqubo yokukhwelana kwesithembu, kwaye nangona iimazi zinokuba namantshontsho kwasekuqaleni nje kweminyaka emi-4 ubudala, azikwenzi oko de zibe neminyaka emi-5 okanye emi-6 ubudala. Emva kokumitha kweenyanga ezi-6 ukuya kwezi-8, ithole elinye liyaveliswa.
Ekukhuliseni amantshontsho, ziimazi kuphela ezinoxanduva. Kwiinyanga ezimbini zokuqala, imazi inyamekela zonke iintswelo zethole, kuquka ukutyisa nokulilungisa.
Ukubaluleka kweeotter zaselwandle kwi-ecosystem yazo
Iiotter zaselwandle zaziwa ngokuba iintlobo eziphambili kuba ubukho bayo buchaphazela ngqo impilo kunye nokuzinza kwe-ecosystem yayo. Ngokunciphisa inani leeurchins zolwandle, isilwanyana esikhulu se-kelp, i-otters yolwandle inceda ukugcina impilo yamahlathi e-kelp. La mahlathi e<em>kelp abonelela ngamakhaya nokutya kwezinye iintlobo ezininzi zaselwandle, kwanokuncedisa ekunciphiseni umlinganiselo we<em>carbon dioxide emoyeni.
Ngamafutshane, iiotter zaselwandle zizidalwa ezibangel’ umdla yaye zibalulekile kwimpilo yendalo yaselwandle. Ngaphandle kwemiceli mngeni abasajongene nayo, njengongcoliseko, izifo nokukhuphisana ngemithombo yobutyebi nabalobi abangabantu, ezi “sean divas” zisaqhubeka zidlala indima ebalulekileyo kwindalo yolwandlekazi enkulu.