UMary Allen
Izinhlanzi azikwazi ukubalekela indawo yazo ebandayo ebandayo. Kungani namanje (imvamisa) engabandi kuze kube sekufeni kuyindaba yamakhemikhali. Ngisho nezinhlanzi zingaba yiqhwa zize zife ebusika. Uma amanzi ezihlala kuwo eba yiqhwa, amakristalu eqhwa anqamula ulwelwesi lwamangqamuzana awo futhi amise zonke izinqubo zokuphila.
Izinhlanzi zingaphila kanjani emanzini abandayo?
Lapho ichibi noma ichibi liba yiqhwa, le nhlanzi ihlehla iye emanzini ajulile, lapho izinga lokushisa lamanzi lingama-degree Celsius amane. Kulokhu kubanda, imisebenzi eminingi yomzimba iyancipha kakhulu. Izinhlanzi zihlala ku-back burner, ngomqondo ongokomfanekiso, futhi i-metabolism yazo iyancipha.
Izinhlanzi ziphila kanjani ngaphansi kweqhwa?
Lapho ichibi liba yiqhwa ebusika, izinhlanzi ziya endaweni ephansi kakhulu ezansi. Ngoba ezansi ungahlala uthembele ku-plus degrees Celsius. Ngaphezu kwalokho, isembozo seqhwa sivikela izingqimba ezingaphansi emoyeni obandayo.
Izinhlanzi zizivikela kanjani emakhazeni?
Izinhlanzi zinokuzivikela kwazo emakhazeni: ziyizilwane ezinegazi elibandayo. Lokhu kusho ukuthi zivumelanisa ukuhamba kwazo nezinga lokushisa lamanzi. Nakuba amanzi efudumele cishe ngo-20°C ehlobo, izinhlanzi zisesimweni esiphezulu.
Kungani izinhlanzi zisinda ngaphansi kweqhwa?
Ngakho-ke kufudumala kakhulu ngaphansi kweqhwa kunaphezu kweqhwa. Izinhlanzi kufanele zikwazi ukuphila lapha ezansi. Bakweleta lokhu endaweni ekhethekile yamanzi, ukunwebeka, ukunwebeka kwe-H2O. Njengoba kwaziwa kahle, lapho izinga lokushisa lehla ngaphansi kweziro, amanzi ayafinyela abe yiqhwa.
Kwenzekani ngezinhlanzi lapho ichibi liba yiqhwa?
Izinhlanzi ziyayithanda. Abanye bemba phansi ukuze balale. Abanye bahlala bephapheme kodwa abanyakazi. Amafutha abawadle ehlobo anele bawadle kuze kuncibilike iqhwa futhi.
Izinhlanzi ziwuthola kanjani umoya-mpilo ebusika?
Ingozi enkulu kunazo zonke izinhlanzi akuwona amakhaza, kodwa ukuntuleka komoya-mpilo. Umoya-mpilo ungena emanzini ngokuthintana phakathi kwamanzi nomoya ozungezile, kodwa hhayi ngaphezulu uma ichibi limbozwe ungqimba lweqhwa.
Kungani ukudoba echibini kungashisi ebusika?
Amanzi aba yiqhwa ukusuka phezulu kuya phansi. Leli qiniso lisiza izinhlanzi. Kungani amanzi ehlala eba yiqhwa ukusuka phezulu kuye phansi? Ngokuhlolwa "Amanzi afudumele afuna ukukhuphuka" sithole ukuthi amanzi afudumele ayakhuphuka futhi abhukude emanzini abandayo.
Zenzani izinhlanzi echibini ebusika?
Ebusika, izinhlanzi zihlala lapho kufudumala kakhulu, okungukuthi phansi kwechibi. Ezinye izinhlobo zezinhlanzi zize zimbe phansi bese zilala, isb. B. i-tench.
Ingabe kungabanda kakhulu izinhlanzi?
Ezimweni ezimbi kakhulu, izilwane nazo zingabanda kakhulu. Amachibi nemifula eBavaria iqhwa - kodwa izinhlanzi zibekezelela kahle amakhaza. “Izinhlanzi zethu zomdabu zijwayelene kahle namakhaza,” kuchaza uThomas Speierl, inhloko yezeluleko zezobuchwepheshe zokudoba esifundeni sase-Upper Franconia.
Ingabe izinhlanzi zizizwa zibanda?
“Izinhlanzi zethu zomdabu zijwayelene kahle namakhaza,” kuchaza uThomas Speierl, inhloko yezeluleko zezobuchwepheshe zokudoba esifundeni sase-Upper Franconia. “Izilwane ezifuywayo futhi zinezivikelo zazo emakhazeni.” Ngakho zivumelanisa ukuhamba kwazo nezinga lokushisa lamanzi.
Ziphi izinhlanzi ebusika?
Ngokuvamile, izindawo ezishisayo ezingcono kakhulu emfuleni ngesikhathi sasebusika amachweba, izintuba zamanzi afudumele, amachibi ama-oxbow, nama-groins ajulile anamanzi azolile. Emachibini ngalesi sikhathi sonyaka, izinhlanzi zivame ukugxila ezindaweni ezijulile.
Izinhlanzi zidlula kanjani ebusika?
Izinhlanzi zilala nini? Uma izinga lokushisa lamanzi lehla unomphela libe ngaphansi kuka-8 degrees Celsius, izinhlanzi zasemanzini abandayo ziyayeka ukudla bese zilala ubuthongo. Ukuze izinhlanzi zisinde kulokhu (okungaqinisekile isikhathi eside) ukuqina okubandayo ngaphandle kokulimala, kubalulekile ukuthi zidle ngokwanele kusengaphambili!
Ziphila kanjani izinhlanzi?
Okubizwa ngokuthi “i-water anomaly” kuqinisekisa ukuthi izinhlanzi nazo zingaphila ebusika. Ezingeni lokushisa elingu-4 degrees Celsius, amanzi anomthamo omkhulu kakhulu futhi asinda kakhulu. Ngenxa yalesi sizathu, amanzi kuleli zinga lokushisa ahlala engaphansi kwamanzi amaningi.
Ingabe izinhlanzi zingasinda ngemva kokuqandisa?
Ngisho nezinhlanzi zingaba yiqhwa zize zife ebusika. Uma amanzi ezihlala kuwo eba yiqhwa, amakristalu eqhwa anqamula ulwelwesi lwamangqamuzana awo futhi amise zonke izinqubo zokuphila.
Hlobo luni lwezinhlanzi ozibamba ebusika?
I-trout iphinde ilume uma kubanda (qaphela inkathi evaliwe). Nakuba umjikelezo wezinhlanzi uvaliwe, ngesinye isikhathi zonke ziyadla. Uma udoba izinhlanzi ezingadli inyama, kufanele manje udle kancane kakhulu.
Ingabe izinhlanzi ziyakuzwa ukushisa?
Izinhlanzi ngokuqinisekile zinama-receptors okushisa. Ngezinga elingakanani banomuzwa ozimele wokubanda/ukufudumala, angikwazi ukusho. Ama-Anglers anomkhuba onamandla wokuqhamuka nezixazululo lapho zingekho izinkinga.