Ukuzikhathaza kwiSiziba seGadi - Ewe okanye Hayi?

Ngaba ii<em>sturgeon zifanele zigcinwe echibini lasegadini konke konke yaye phantsi kwaziphi iimeko apho ukugcinwa kwazo kunokuchazwa “njengezifanelekileyo zohlobo”? Sifuna ukujongana nale mibuzo kunye neminye imibuzo kolu ngeno.

Ulwazi malunga neSturgeon

Isturgeon yintlanzi enamathambo, nangona amathambo ayo anesiqingatha nje samathambo. Ubume bomzimba kunye neentshukumo zokuqubha zibenza babonakale ngathi bayinto yokuqala, kunye neepleyiti zamathambo aqinileyo emqolo wakhe, kwaye sele kukholelwa ukuba i-sturgeon ikhona malunga ne-250 yezigidi zeminyaka. Lilonke, iintlanzi ekuthiwa zii<em>sturgeon azinabungozi, ziseluxolweni, kwaye zomeleleyo iintlanzi ezithanda amanzi apholileyo, aneoksijini eninzi. Ingaphandle enkulu iphazamisa iindawo ezininzi zokuhlala, ukusuka emilanjeni ukuya elwandle - unokuzifumana kwiindawo ezininzi.

Into abafana ngayo bonke kukukwazi ukuqubha: Baziindadi ezizingisa kakhulu kwaye bahlala behamba, yiyo loo nto bethatha indawo enkulu. Emini ubukhulu becala ziphantsi komhlaba, kodwa ngakumbi ebusuku ngamanye amaxesha zijikela phezulu.

Ezinye iintlanzi azikho bungozi kwi-sturgeon, kodwa yingxaki kuzo ezinokuthi zilahlekise ubomi bazo: ii-sturgeon azikwazi ukudada ngasemva. Yiyo loo nto i-algae yentambo, izitya ezineekona, iingcambu, kunye namatye amakhulu ziyingxaki yokwenyani kwezi ntlanzi. Amaxesha amaninzi azikwazi ukuphuma kwezi “ziphelo zifileyo” zize zifuthaniseleke ngenxa yokuba akukho manzi acocekileyo aneleyo agungxulwa kwiiseli zazo.

Kukho malunga nama-30 eentlobo ze-sturgeon kwihlabathi jikelele ezohlukileyo kungekuphela nje kwinkangeleko yazo kodwa kunye nobukhulu bemizimba yazo: Iintlobo ezinkulu, umzekelo, zinokukhula ukuya kwi-5 m ubude kwaye zibe nobunzima malunga netoni. Ukungaqondi kakuhle okuxhaphakileyo apha kukuba zonke iintlobo zezilwanyana zinokugcinwa echibini kuba ubukhulu bazo buqhelana nobukhulu bechibi. I-sturgeon enkulu enjalo ayiyi kunciphisa ukukhula kwayo ukuya kuma-70 cm ngenxa yokuba ichibi alikho likhulu ngokwaneleyo.

I-sturgeon efanelekileyo kwichibi lakho inokwenzeka ukuba yi-sterlet yokwenyani, enobude obuyi-100cm ubude. Ingaphila ukuya kutsho kwiminyaka engama-20, yintlanzi yasemanzini acwengileyo, kwaye ifumaneka ikakhulu kwimilambo namachibi anemisinga ephezulu. Inempumlo ebhityileyo, ende, egobileyo kancinane kwaye icala layo elingasentla linomdaka omnyama ukuya kungwevu, icala elingaphantsi libomvu-mhlophe ukuya kumthubi ngombala. Amacwecwe amathambo emqolo amdaka amhlophe.

Ichibi leSterlet yokwenyani

Njengoko sele kukhankanyiwe, i-sterlet yincinci yentsapho ye-sturgeon kwaye, ngoko ke, ifanelekile kakhulu ukugcina amachibi. Nangona kunjalo, kufuneka uhlale ukhumbula ukuba ukugcina echibini akuze kufike kwindawo yokuhlala yendalo. Awunakuze wenze kwakhona umlambo ngokwenyani. Ukuba uthe wagqiba ekubeni wenze elona chibi lihle kakhulu le-sturgeon, into ebaluleke kakhulu kukuba ube neendawo zokubhukuda zamahhala. Kufuneka ugweme izityalo zasemanzini kunye namatye amakhulu ezantsi (ngenxa yomcimbi wokuhlamba umva) kwaye ichibi kufuneka libe nomfanekiso ojikelezayo okanye oval. Kwelo chibi, ii<em>sturgeon zinokuhambisa iindlela zazo ngaphandle kokuphazanyiswa yimiqobo. Enye inqaku elidibanisayo ziindonga zedama ezithambekileyo. Apha ziqubha macala onke ezindongeni kwaye ngaloo ndlela zifikelela kumphezulu wamanzi.

Inkqubo yokucoca eyomeleleyo nayo ibalulekile, njengoko ii-sturgeon ziziva zikhululekile ngokwenene kumanzi acacileyo, aneoksijini eninzi; uvuyo lokuqubha lunokuxhaswa ngempompo yokuhamba. Ngokubanzi, idama kufuneka libe nobunzulu obuyi-1.5 m, kodwa ubunzulu buhlala bungcono: Ubuncinci iilitha ezingama-20,000 zamanzi kufuneka zibe zizityebi kwioksijini. Ukuba i-sturgeon yanelisekile kwaye iziva ikhululekile kwindawo yayo, inokude ibe mbuna.

Ukutya iSturgeon

Enye ingongoma ebalulekileyo apha kukutya, njengoko i-sturgeon ineempawu ezithile apho. Ngokuqhelekileyo, i-sturgeon itya imibungu yezinambuzane, iintshulube kunye ne-molluscs, ezithi zitshayela emlonyeni wazo ngeebarbels zazo. Ngoko ke bayakwazi ukutya kuphela emhlabeni. Abanakwenza nto ngokutya okudadayo.

Ngenxa yobukhulu bawo, ukutya okwendalo echibini akwanelanga; Ukutya okukhethekileyo kufuneka kutyiswe. Into ekhethekileyo apha kukuba iyancipha phantsi ngokukhawuleza kwaye ayidluli umxholo we-carbohydrate we-14%. Iprotheyini kunye nomxholo wamafutha uphezulu kakhulu. Ukutya kufuneka kwenzeke ngokuhlwa, njengoko i-sturgeons isebenza kakhulu apha. Izilwanyana ezincinci zifuna ukutyiswa amaxesha amaninzi ngemini.

Kwakhona kufuneka uqinisekise ukuba ukutya akulali emanzini ngaphezu kweyure, ngaphandle koko, kuya kuhoywa ngokupheleleyo. Indawo ethile yokutya, elawulekayo kufuneka ke ngoko isetyenziswe, apho isondlo singasasazwanga kakhulu kwaye “singanakwa”: Sisebenza kakuhle kwindawo ethe tyaba. Isikhokelo sobungakanani bokutya kukuba malunga ne-1% yobunzima bomzimba kufuneka bondliwe ngosuku.

Imeko ekhethekileyo ivela xa i-sturgeons idibaniswa noKoi. Ezi ntlanzi zaziwa ngokuba zii-omnivores kwaye ukuba awuqapheli, akuyi kubakho ukutya okushiyekileyo kwi-sturgeon ehluphekileyo ezantsi. Oku kubi nakwi-koi kuba ukutya okunamafutha amaninzi kuyayonakalisa ekuhambeni kwexesha. Uya kuzuza kakhulu. Ngaba kufuneka udle ebusuku okanye (okwenziwa ngabanikazi bamachibi amaninzi) uyondla isondlo ngoncedo lombhobho ngqo kumgangatho wedama, apho i-sturgeons ingadla ngokukhawuleza.

Ilizwi lokuvala

Ekugqibeleni, kufuneka uzenzele isigqibo sokuba yeyiphi indawo ofuna ukuyithatha kumcimbi we-sturgeon. Nangona kunjalo, ukuba uthatha isigqibo malunga nentlanzi enjalo, kufuneka kwakhona udale iipropati eziyimfuneko zamachibi ukwenzela ukuba i-sturgeon ikwazi ukuziva ikhululekile. Kwaye oko kubandakanya ngaphezu kwayo yonke indawo, indawo, indawo!