
petagotothen brevikada

petagonothen brevikada, petagonian rockode, samudri ray-finn machhali kii ack prajaati haye, joe notathenidae parivaar, notonthan yaa codefish seey sambandhit haye. yeh petagonian kshetra key mahasagaron kaa mool nivasi haye, jisamen tiara dell fugo, magellan kii jaldamroomadhya, beagle channel aur falkland dweep shamil hain.
vargeekaran.
1905 mein swedish prakritivaadi enar lonberg dwara naamit prajaati naam "petagonotan brevikada brevikada" key saath varnit, shagg chattanon seey aabaadi koo "pee" key roop mein varnit kiya gayaa thaa. soviyat echithologist aeye dwara "brevikada shegenisis.vee. balushkin aur vaaee.vaaee. 1982 mein permattin. iss vargeekaran koo machhali key aadhar aur machhliyon kii soochi, "petagonothen shegensis" donon dwara ack maanya prajaati key roop mein maanaa jaataa haye.
varnan.
yeh prajaati apekshaakrit chhoti haye, joe adhikatam lambai taka pahunchati haye. avasaadgrast shareer aam taur parr bhura hotaa haye. peele aur kaale rung kii pattiyon kii ack shrinkhala shareer koo paar karati haye. pectoral pankhon key aadhar koo kaali rekhaaon dwara rekhaankit kiya jaataa haye, joe feaky hoti hain, jaisa kii nilay kshetra hotey hain. peeth aur gudaa bhaag kaale hotey hain, baad vaale kii seemaaen pealy hoti hain. 19 prishthiya pankh merudand taka maujood hain. purushon mein antar-kakshiya sthaan adhik avasaadgrast hotaa haye.
yeh prajaati "petagonothen guntheri" key samaan haye (vaastav mein, ise aich jaise lekhakon dwara vargeekrit kiya gayaa thaa.aich. devit aur jey.-see. pee" kii upa-prajaati key roop mein heuro. guntheri), lekin sir kii lambai (adhikatam) key sambandh mein kaudal peddencle kii lambai jaise kaee pahaluon mein bhinn hotaa haye. 35 pratishat banaam adhikatam. 31 pratishat), gill rekar count (22-27 banaam 26-39) aur pectoral finn ray count (22-25 (matlab 24.8) banaam 23-26 (matlab 23.0)). 
pee" key beach. brevikada "aur" pee. shegenisis, antar-kakshiya sthaan kaa aakar (sir kii lambai banaam sir kii lambai kaa 16-20%), pectoral finn kiranon kii sankhya (aamtaur parr 27 banaam aamtaur parr 25), aur kasheruka kii sankhya (51-53 banaam 49-51) donon prajaatiyon koo alag karati haye.
paaristhitiki.
yeh avikasit prajaati gaharaai kii seema key uthale, bajridar samudra tala mein rahati haye. yeh prajaati ack avasarvaadi sarvabhakshi haye, joe mukhya roop seey shaiwal, amphipods, chhote crustatian (jaise squat lobster prajaati "munida gregaria") aur coppods koo khaata haye. cephalopods, bryozoan, mitelide, hydrozone, thalia mahasagar, isopods aur polychates kaa bhee cumm matra mein sevan kiya jaataa haye.
vyaavsaayik mahatva.
yeh prajaati vaanijyik matsya paalan key liye mamuli mahatva kii haye, kewal 2011 mein utarane key saath. haalaanki, iss prajaati koo ack baar vyaavsaayik roop seey badee matra mein pakada gayaa thaa, akele 1981 mein utarane key saath.