Stingray ea Noka (Potamotrygon motoro) ke mofuta oa li-stingray tse tsoang taolong ea stingray.
Kabo ea stalker ea noka
Noka ea stingray e atile ho litsamaiso tse 'maloa tsa noka tsa Amerika Boroa. Ke letsoalloa la Brazil le Amazon, mme leha boteng ba eona bo netefalitsoe linokeng tsa Amerika Boroa, lintlha tsa kabo ea eona kantle ho Amazon ea Brazil ha li e-so utloisisoe ka botlalo. Stingray ena e boetse e fumaneha Uruguay, Parana, mabopong a noka lipakeng tsa Paraguay le Orinoco, ho kenyeletsoa bohareng le karolong e tlase ea Rio Parana ka bophirima ho Brazil (moo e leng mofuta o mongata haholo), karolo e bohareng ea Rio Uruguay, Rio Bermejo, Rio -Guapore, Rio Negro, Rio Branco, Rio de Janeiro le Rio Paraguay.
Mofuta ona o sa tsoa hasana libakeng tse ngata tse kaholimo ho Amazon Basin le libakeng tse ling tse hole ka lebaka la kaho ea letamo le fehlang motlakase, le tlositseng litšitiso tsa tlhaho tsa ho falla.
Libaka tsa river stalker
Li-stalkers tsa linoka li fumanoa linokeng tsa metsi a chesang a mongobo tse nang le mocheso oa metsi (24 ° C -26 ° C). Botebo ba sebaka sa bolulo bo ipapisitse le botebo ba noka eo litlhapi li lulang ho eona. Boithuto bo bontšitse hore mahlaseli ana a fumanoa botebong ba limithara tse 0.5-2.5 libakeng tse holimo tsa Noka ea Parana, botebong ba limithara tse 7-10 Nokeng ea Uruguay. Linoka tsa linoka li khetha metsi a khutsitseng a nang le lehlabathe, haholo-holo mabopong a melatsoana le matangoana, moo ba ipatang khafetsa.
Lipontšo tsa kantle ho noka ea noka
Li-stingray tsa linoka li fapana le mefuta e amanang haufi-ufi ka boteng ba mahlo a mmala oa lamunu kapa o mosehla lehlakoreng la mokokotlo, le leng le le leng la lona le pota-potiloe ke lesale le letšo, le bophara bo boholo ho feta sebaka sena.
Mmele o mosootho bo sootho ka mmala. Mmele o motopo ka mohatla o matla. Bolelele bo boholo bo fihla ho 100 cm mme boima bo boholo ka ho fetisisa ke 15 kg, leha li-stingray li le nyane haholo (50-60 cm le boima ba 10 kg). Tsehali li batla li le kholo ho feta tse tona.
Tlhahiso ea stalker ea noka
Linako tsa ho tsoala ka kotloloho li its'etleha ka potoloho ea hydrological linōkeng 'me li fella nakong ea komello, e qalang ka Phuptjane ho isa Pulungoana. Ho tlolelana ha liphoofolo ka har'a linoka tsa linoka ho ne ho bonoa feela ho baahi ba lifofane, ka hona, ho ka ba le phapang pakeng tsa ho ikatisa ha baahi ba naha. Ho tlolelana ha mmele ho etsahala haholoholo bosiu. E tona e ts'oara e tšehali 'me e tšoare mehlahare ea eona ka thata pheletsong e ka morao ea disk ea hae, ka linako tse ling e siea matšoao a ho loma a hlokomelehang.
Ho ka etsahala hore tse tona li kopane le tse tšehali tse 'maloa ka linako tse ling tsa libeke tse' maloa. Li-stingray tsa linoka ke mefuta ea ovoviviparous, mahe a tsona a bophara ba 30 mm.
E tšehali e tsoala bana ka likhoeli tse 6, li-stingray tse nyane li hlaha nakong ea lipula ho tloha ka Hlakubele ho isa Hlakubele (bana ba hlaha ka aquarium ka mor'a likhoeli tse 3). Palo ea bona e tloha ho 3 ho isa ho 21 mme e lula e maketse.
Ka tloaelo, matlakala a le mong a qhotsoa selemo se seng le se seng ka lilemo tse tharo tse latellanang, a lateloa ke lilemo tse 'maloa tsa ho se sebetse. Mahe a emolisitsoeng 'meleng oa mosali a fuoa limatlafatsi ho' m'ae.
Tse tshehadi tse nyane di atisa ho tswala malinyane a mmalwa. Hangata e le bana ba 55% le basali ba 45%. Bolelele ba li-stingray tse nyane ke 96.8 mm ka karolelano. Li-stingray tse nyane hang-hang lia ikemela, lia ikatisa ha li fihla lilemong tse likhoeli tse 20 ho isa ho lilemo tse 7.5.
Tlhahisoleseling mabapi le bolelele ba bophelo ba li-stingray tsa linoka naheng ha e tsejoe. Litlhapi tsena tse botlamuoeng li phela ho fihlela lilemo tse 15.
Boitšoaro ba noka ea linoka
Linoka tsa linoka li fallela linokeng le melatsoaneng ea metsi a hloekileng. Sebaka, seo linonyana tsa stingray li falletseng ho sona, se fihla ho li-kilometara tse 100. Litlhapi li lula li le bang, ntle le nako ea ho hlahisa. Motšehare u ka bona li-stingray tse patiloeng mobung oa lehlabathe. Ha ho tsejoe hore na mahlaseli ana ke libaka tse phelang libakeng tse ling.
Mahlaseli a linoka a na le mahlo a holim 'a hlooho ea hlooho a fanang ka pono ea hoo e ka bang 360 °. Boholo ba baithuti bo fapana ka maemo a mabone. Mohala o ka morao o nang le lisele tse ikhethang o lemoha phetoho ea khatello ka metsing. Li-stalkers tsa linoka le tsona li na le mefuta e mengata e rarahaneng ea li-receptor tsa motlakase tse fanang ka maikutlo a bobebe ka ho fetesisa a maikutlo a motlakase a maqhubu a tlase, a li lumellang ho fumana phofu e sa bonahaleng ka metsing.
Ka mokhoa o ts'oanang, litlhapi tsena li lemoha liphoofolo tse li jang ebe li tsamaea tikolohong ea metsing. Litho tsa monko li ka har'a li-capsule tsa lefufuru ka holim'a hlooho. Li-stingray tsa linoka li tsongoa ke li-caimans le litlhapi tse kholo. Leha ho le joalo, mokokotlo o chefo, o chefo mohatleng ke tšireletso ea bohlokoa khahlanong le libatana.
Ho fepa noka ea noka
Sebopeho sa lijo tsa li-stingray tsa noka se latela lilemo tsa mahlaseli le boteng ba phofu tikolohong. Nakoana kamora ho hlaha, li-stingray tse nyane li ja li-plankton le li-juveniles, li ja li-molluscs tse nyane, li-crustaceans le liboko tsa likokoanyana tsa metsing.
Batho ba baholo ba fepa litlhapi (astianax, bonito), hammoho le li-crustaceans, gastropods, likokoanyana tsa metsing.
Se boleloang ke motho
Linoka tsa linoka li na le mahloko a chefo a sieang maqeba a bohloko 'meleng oa motho. Litlalehong tsa haufinyane, ho bile le linyeoe tse ngata le ho feta tsa likotsi ho batho ba tikolohong eo Noka ea Parana e phallang. Linoka stingray ke ntho e ho tsoma; baahi ba moo ba tšoasa khafetsa le ja stingray.
Boemo ba polokeho ea stalker ea noka
Noka ea stingray e arotsoe ke IUCN e le mofuta o "nang le tlhaiso-leseling". Palo ea batho ha e tsejoe ka botlalo, mokhoa oa bophelo oa lekunutu le ho phela metsing a seretse ho etsa hore ho be thata ho ithuta tikoloho ea litlhapi tsena. Libakeng tse ngata moo li-stingray tsa linoka li lulang teng, ha ho na lithibelo ho kantle ho naha mahlaseli a metsi a hloekileng. Uruguay, ho ts'oaroa litlhapi bakeng sa li-stingray tsa linoka ho hlophisitsoe. Tlhokahalo e batlang e le tlase ea mofuta ona oa litlhapi e le mohloli oa lijo e kenya letsoho phokotsong ea pheliso ea mahlaseli a linoka ka tlhaho.
