Mai shayar da dutse

Mai shayar da dutse
Conservation status
LC (mul)  (IUCN 3.1)
Scientific classification
Kingdom	Animalia
Phylum	Chordata
Class	Actinopteri (mul)
Order	Cypriniformes (mul)
Dangi	Catostomidae (mul)
Tribe	Catostomini (mul)
Genus	Catostomus (mul)
jinsi	Catostomus platyrhynchus Cope, 1874

Dutsen dutse (Pantosteus platyrhynchus) yana tsotsewa wanda ake samu a yammacin Arewacin Amurka, a bangarorin biyu na Dutsen Rocky, gami da Kogin Missouri, Kogin Columbia, Kogin Sacramento, da Kogin Colorado. Ba'a iyakance shi ga tsaunuka mafi girma ba amma an san shi daga wurare masu tsawo kamar 2,800 metres (9,200 ft) m (9,20 centimetres (8 in) . Kifi ne mai laushi, mai laushi yawanci a ƙarƙashin 20 in) a tsawon. Yawanci kore ne na zaitun ko launin ruwan kasa a sama, tare da ƙananan ƙananan, kuma maza masu haifuwa suna da jan-orange na gefe da fuka-fukan da aka cika da launi ɗaya. Yafi yawanci yana cin ganyayyaki, yana cin abinci a kan algae da diatoms. Kiwo yana faruwa a ƙarshen bazara da farkon lokacin rani a cikin riffles a cikin ƙananan rafi.

Da farko an sanya shi a cikin jinsin Catostomus, yanzu an sanya shi cikin jinsin Pantosteus . Nazarin phylogenetic na baya-bayan nan ya nuna cewa ya ƙunshi nau'o'i uku: P. platyrhynchus sensu stricto da aka samo a arewacin Great Basin, P. lahontan da aka samo daga Nevada da arewa maso gabashin California, da P. Jordani da aka samo gabas na Rocky Mountains.

Bayyanawa

Wannan mai laushi ne kuma mai laushi, yawanci kore na zaitun zuwa launin ruwan kasa a sama da kuma a bangarorin, da fari zuwa rawaya a ƙasa. Wataƙila akwai tsari na duhu a gefen. Har ila yau, maza masu girma za su sami duhu ja-orange band a kan duhu kore band a kowane gefe, kuma a lokacin haifuwa fuka-fukan su za su ɗauki inuwa ja-orangel kuma. Kodayake nau'in nau'in platyrhynchus yana nufin "hanci mai laushi", hanci ba a zahiri ba ne fiye da sauran masu shanyewa. Bakin yana ƙasa, an tsara shi da manyan leɓuna masu tsayi da aka rufe da Papillae da yawa. Yankin ciki na ƙananan lebe yana da wurare biyu na semicircular, da kuma farantin cartilaginous da aka yi amfani da shi don cirewa. Kusan sama da fuka-fukan pelvic na 9 rays akwai ƙananan ƙuƙwalwa a kowane gefe. Tsawon ya kai 25 cm, tare da tsawon ƙasa da 20 cm na al'ada.  

Rarraba da mazaunin

Yankin tsotsin dutsen yana da yawa a cikin Amurka, amma yana da iyaka a Kanada. Ana samun su har zuwa arewa har zuwa Maine, amma tsaunin dutse yana iyakance a yankin Maine. A Amurka, ana samun ta a bangarorin biyu na Dutsen Rocky, ciki har da kogin Missouri na sama, Kogin Columbia, Kogin Sacramento, da Kogin Colorado.

Duk da yake suckerfish gabaɗaya yana rayuwa a wurare daban-daban, mai tsotsin dutsen yana son fifita rafukan ruwa masu tsafta tare da matsakaicin matsakaici, tare da faɗin 3 - 15 m da zurfin ƙasa da m 2, da ƙasa mai dutse ko ƙasa. Ko da yake ba keɓanta ga tuddai masu tsayi ba, galibi suna rayuwa ne a cikin ƙoramar tsaunuka masu sanyi (don haka sunan gama gari), ana samun su har zuwa mita 2,800, kuma a cikin ruwa sama da yanayin sanyi. A cikin rafi, ana samun su a cikin tafkuna ko eddies a baya ko ƙarƙashin duwatsu da katako..

Muhalli

Masu shan dutse da farko suna cin ganyayyaki, suna cin abinci mafi yawa a kan algae da diatoms, amma za su ci wasu nau'o'in ruwa. Suna ciyarwa ta hanyar cire kayan da bakinsu.

Spawning yana faruwa a ƙarshen bazara zuwa farkon bazara, lokaC da ruwa ke tsakanin 10.5 da 18.8 ° C. Suna motsawa cikin ƙananan rafi, inda suke fitowa a kan riffles na dutse daga tafkuna masu nutsuwa.