
shortnoss sisko

salmonidae kudumbatthile vadakke amerikkayile shudhajala vella malsyamaanu shortnoss sisko ("corgonus reigardy"). siskokalude vishalamaaya "corgonus artedy" speeshees complexile amgangalilonnaaya ithu canadayileyum americayileyum valia thadaakangalil ninnullathaanu. athinte janasamkhya kurayukayum munkaalathe chila vettakalil ninnu athu aprathyakshamaakukayum cheythu. avasaanamaayi report cheyyappetta janasamkhya kaanadayile huron thadaakathinu sameepamulla georgian ulkkadalil maathramaayi parimithappedutthiyirunnu. eee malsyathinte janasamkhyayile idivu valia thadaakangalile zee lambreyude ("petromysone marinus") varavumaayi bandhappettirikkamenn karuthappedunnu. internaashanal union phoor kansarveshan oof nechar eee malsyathinte samrakshana nilaye "gurutharamaaya vamshanaashabheeshani neridunna", vamshanasham sambhavichathaakam ennu vilayiruthiyittundu.
vivaranam.
rekhappeduthiya paramavadhi neelavum rekhappeduthiya paramavadhi bharavum athunna shortnoss sisko mattu velutha malsyangalil ninnu athinte kattiyulla shareeram (cross sekshanil ekadesham vrithaakruthiyilullathu), hraswa thala (malsyathinte pothuvaaya perinte uravidam), cheria kannu ennivayaal verthirikkappedunnu.
paristhithi.
pala "corgonus" enangaleyum pole, shortnoss siskoyekurichu valare moshamaayi manassilaakkappedunnu, koodaathe thadaakatthinte adithattil vasanthakaalath ithu mulaykkunnuvennatho athinte prajananathekkuricho jeevithachakrathekkuricho valare kurachu maathrame ariyoo; shekharicha ettavum pazhaya maathruka ettu varsham pazhakkamullathaayirunnu. 
krasteshyan, molesk, sooplanktan ennivaye malsyam bhakshikkunnu.
padavi.
munbu canadayileyum americayileyum huron, mishigan, ontaariyo thadaakangalil kaanapedunna grettu thadaakangalude swadeshiyaanithu.
iucn "sii" aayi kanakkakkunnu. paristhithi naseekaranam moolamundaakunna janasamkhya kurayunnathinte adisthaanathil reigardy "gurutharamaaya vamshanaashabheeshani neridunnu. yuu.ezz. ennirunnaalum, malsya-vanyajeevi sevanavum ontaariyo pravishyayude prakrithivibhava manthraalayavum ithinakam vamshanasham sambhavicha enangale pariganikkunnu, 1985 muthal oru maathrkayum shekharichitilla ennathinte adisthaanathil. 1964 ll ontaariyo thadaakathilum 1974 ll mishigan thadaakathilum 1985 ll georgian ulkkadalilum eee inam avasaanamaayi sthireekarichu. anyagraha kadal vilakku ("petromysone marinus"), vaanijyaparamaaya amita mathsyabandhanavumaayi samyojippichu, malsyathinte ennathil ganyamaaya kurravinum vamshanasham sambhavikkaanum kaaranamaayi.