
raat kii machhali

nightfish (bostokia porosa) taaje paani kii ray-finn vaali machhali kii ack prajaati haye, joe persichidae parivaar seey ack samshitoshna purch haye joe dakshin-paschimi australia mein sthaanik haye.
vargeekaran.
nightfish kaa pahali baar aupchaarik roop seey 1873 mein francisi prakritivaadi francois-luis laporte, comte dee castellanou dwara varnan kiya gayaa thaa. paschimi australia key aantarik bhaag mein iss prakaar key ilaake koo signess nadee key roop mein diyaa gayaa thaa. castellnau ney iss naee prajaati key liye nae monotypic genus "bostokia" kaa bhee varnan kiya. yeh genus persichidae parivaar key bheetar vargeekrit kii gaee haye, samshitoshna purchess. genus kaa naam anglican mantri rev kaa sammaan kartaa haye. paschimi australia mein castellanaau key liye machhali key namoonon key sangraahak george james boston (1833-1881) ney raat kii machhali key prakaar koo ekatra kiya. vishisht naam "porosus" kaa arth haye "chhipi hui" yaa "chhidrit", joe sir key chaaron or key chhidron key liye ack sanket haye.
varnan.
nightfish kaa ack aaytaakaar aur sampeedit shareer hotaa haye jisamen ack badaa, tirchha munh hotaa haye jiska nichala jabada thodaa baahar nikalata haye aur joe putali key pichhale kinare seey parey taka pahunch jaataa haye. jabade aur munh kii chhat donon mein vilom daanton kii pattiyan hoti hain> isamen ack adhuri paarshv rekha hoti haye jisamen 43-47 nalika vaale taraju hotey hain. pratyek aankh key chaaron or aur sir key oopari hisse aur jabadon key saath badey spasht khule chhidra hotey hain. gill cover ack dohri reedh mein samaapt hotaa haye. prishthiya pankh mein 7 yaa 8 meru hoti hain, meru 3 aur 4 sabse lambi hoti hain, aur 16-17 naram kiranen, joe kii ack gahare nishan dwara alag kiye gaye meru aur naram-rated bhaag hotey hain. gudaa pankh mein 3 meru aur 11-12 komal kiranen hoti hain. gudaa aur kaudal pankh goal hotey hain. yeh aam taur parr gahare zaitoon baingani seey laker kaale yaa gahare bhoore rung kaa hotaa haye, lekin halke vatavaran mein rahane parr gahare bhoore rung key chittakarshak key saath halka-bhura hoe sakata haye. adhikatam darj maanak lambai haye, halanki adhikansh machhaliyan aspas hain.
vitaran.
nightfish dakshin-paschim australia key tateey ardrabhoomi mein sthaanik haye. yeh aam haye aur pahaadi nadee key beach, jurien khaadi key paas aur albany key paas kalgan nadee key beach paaya jaataa haye.
nivaas aur jeev vigyaan.
raat kii machhaliyan tateey dhaaraon, jheelon aur talabon mein paaee jaati hain jahan way saaf paani aur tannin dwara andhere paani donon mein paaee jaati hain. way chattanon, macrophytes yaa jalmagn lakadi key aavaran key aspas rehna pasand karate hain. yeh dinn key dauran, pattharon key neeche yaa vanaspati key beach chhip jaataa haye. vayask dinn key ujaale mein chhipe rahate hain aur raat mein khaane key liye baahar nikalate hain jabaki kishore adhik dainik hotey hain. purush ack saal key baad yaun paripakvata praapt karate hain aur mahilaaen dou saal key baad, jaba agast aur sitambar mein sardiyon kii barish mein paani kaa star badhata haye, tou way prajanan key liye oopar kii or pramukh jall aur sahayak nadiyon mein chaley jaate hain. pratyek maadaa 230 seey 1138 andey dey sakati haye. yeh ack mansahari prajaati haye joe vibhinn prakaar key benthic aksheruki jeevon, vishesh roop seey austracodes aur makkhi larva koo khaata haye. unakaa jivankal 6 varsh haye.
sanrakshan.
nightfish kewal dakshin-paschimi australia mein paaee jaati haye. haalaanki yeh vahaan vyaapak roop seey hotaa haye, lekin yeh kewal usa kshetra mein faila huaa haye. yeh aakramak prajaatiyon, vishesh roop seey purvi machchar machhali ("gambusia holbrooky"), joe raat kii machhali key pankhon koo kaatati haye, aur indradhanush trout ("oncorincus micis") aur europeeya purch ("parka fluevitilis") seey khatare mein haye joe isase pahale hoti haye. yeh jalavaayu parivartan seey bhee khatare mein haye, jisake kaaran awas sookh gaye hain, nadiyon kaa dwiteeyak lavankaran huaa haye aur huns tateey maidan parr upalabdh paani kii matra mein kamee iucn ney iss prajaati koo khatare key karib bataaya haye.