
uttari farr seal

uttari farr seal (colorinus ursinus) uttari prashant mahasagar, berring samudra aur okhotsk key samudra key saath paaee jaane vaali ack kataai vaali muhar haye. yeh farr seal upa-parivaar (arctocephaline) kaa sabse badaa sadasya haye aur "colorinus" vansh mein ekmatra jeevit prajaati haye. ack ekal jeevaashm prajaati, "colorinus gilmore", japan aur paschimi uttar america key pleocene seey jaani jaati haye.
varnan.
uttari farr muharon mein atyadhik yaun dwiroopata hoti haye, jisamen purush 30-40% lambe aur vayask mahilaaon kii tulanaa mein 4.5 gunaa seey adhik bhaari hotey hain. bahut chhote, neeche-ghumaavdaar thoothan aur chhoti naak key kaaran donon lingon mein sir koo chhota kiya jaataa haye, joe mahilaaon mein munh seey thodaa aage aur purushon mein madhyam roop seey failata haye. pelaj motaa aur shandar hotaa haye, jisamen malaidar rung mein ghaney underfur hotey hain. underfur lambe gaard baalon seey aspasht haye, halanki yeh aanshik roop seey taba dikhaai detaa haye jaba janwar geele hotey hain. agra aur pashch donon flippers kii visheshataaen prajaatiyon kii anoothi aur naidaanik hain. phore flippers key sheersh parr farr anupasthit hotaa haye aur kalaai key paar ack achaanak "saaf rekha" dekhi jaati haye jahan farr samaapt hotaa haye. sabhi pair kii ungaliyon parr behad lambe, cartilogenous extension key kaaran peechhe key flipper kissy bhee ottarid mein aanupaatik roop seey sabse lambe hotey hain. chhote panje 2-4 ankon parr hotey hain, joe pratyek ank key flap jaise chhor seey kaafee peechhe hotey hain. kaana key pinne lambe aur vishisht hotey hain, aur puraane jaanvaron mein nokon parr kaale farr key nagna hotey hain. rahasyamayi compan bahut lamba hoe sakata haye, aur niyamit roop seey kaana seey parey fail sakata haye. vayaskon mein sabhi safed compan hotey hain, kishore aur upa-vayaskon mein safed aur kaale compan kaa mishran hotaa haye, jisamen kuchh key gahare aadhar aur safed chhor hotey hain, aur pillon aur bachchon mein sabhi kaale compan hotey hain. aankhen aanupaatik roop seey badee aur vishisht hoti hain, vishesh roop seey mahilaaon, upa-vayaskon aur kishoron parr.
vayask narr banaavat mein motey hotey hain, aur unaki gardanen badee (motee aur chaudi) hoti hain. motey, lambe rakshak baal nichale gardan seey kandhon taka faile hue hain. aur gardan, gardan, chhaati aur oopari peeth koo dhakta haye. jabaki vayask purushon kii khopadi unake samagr aakar key liye badee aur majboot hoti haye, unake sir chhote thoothan key sanyojan key kaaran chhote dikhaai dete hain, aur kaana key pinne key peechhe key sir kii peeth koo badhee hui gardan dwara aspasht kiya jaataa haye. vayask purushon key maathe key oopar seey mukut kii oonchaai seey achaanak maathe banate hain, aur unake sir key oopar seey maan kii motee farr hoti haye.
kutton key daant bahut lambe hotey hain aur vayask purushon mein vayask mahilaaon kii tulanaa mein adhik vyaas hotey hain, aur yeh sambandh sabhi umr mein cumm hudd taka rahata haye.
vayask mahilaaen, upa-vayask aur kishore madhyam aakar key hotey hain. lagbhag paanch saal kii umr taka lingon mein antar karna mushkil haye. shareer kaa aakar mamuli hotaa haye aur gardan, chhaati aur kandhe dhad key anupaat mein aakar key hotey hain. vayask mahilaaon aur upa-vayaskon mein vayask purushon kii tulanaa mein adhik jatil aur parivartansheel rung hotaa haye. way oopar kaale chaandi-gray seey laker charcoal taka hain. gardan key paarshv, chhaati, bhujaaen aur neeche kii or, joe aksar iss kshetra mein ack shevron pattern banaate hain, jangdar tone key saath cream seey tain hotey hain. jung-rung key kshetron key liye parivartaniya cream thoothan key kinaaron aur sheersh parr, thhodi, aur aankh key neeche peechhe kii or chalane vaale "brush stroke" key roop mein hoti haye. isake vipareet, vayask narr madhyam bhoore seey kaale, yaa laal seey gahare bhoore rung key hotey hain. unake maine mein rakshak baalon parr chaandi-gray yaa peele rung kaa rung badal sakata haye. janm key samay pille kaale hotey hain, kinaaron parr, akshiya kshetra mein, aur thhodi aur thoothan key kinaaron parr buff key parivartansheel andakar kshetra hotey hain. teen seey chaar maheene key baad, pille vayask maadaon aur upa-vayaskon key rung mein badal jaate hain.
purush utane badey hoe sakate hain. maadaaen adhik aur adhik vajan vaali yaa adhik hoe sakati hain. navjat shishuon kaa vajan lamba hotaa haye.
daant haplodont hain, i.ee. nukili, shankudhari aur jyaadaatar ekal-jarh vaali, jaisa kii mansahari samudri standhaariyon key saath aam haye joe machhali key maans koo faadane key liye anukoolit hain. adhikansh caniform key saath, oopari canine pramukh hain. vayask kaa dunt sootra haye 
anya ottarids kii tarah, uttari farr seal kushal sthaliya gati key liye banaae gaye hain. unake pichhale anga ack paadap-shreni key rukh mein hotey hain aur chauguni gati aur samarthan key liye shareer key neeche ghoomane mein saksham hotey hain. tairaki karate samay, dou alag-alag prakaar key andolan hotey hainh gati aur gotakhori. yeye muharen apane shareer vigyaan key kaaran mukhya roop seey agrang pranodan key saath tairati hain. unake paas paani mein behtar paintarebaazi key liye kasheruka key beach lacheele jodd hotey hain aur saath hii saath pectoral stroke key liye "adhik manspeshi laabh" hotaa haye. vibhinn prakaar key gotakhoron aur gati key liye stroke key pattern alag-alag hotey hain, aur stroke kii darr vyaktiyon key liye alag-alag hoti haye kyonki adhikatam stroke darr aur shareer key aakar key beach sambandh hotaa haye.
vitaran aur nivaas sthaan.
uttari farr seal uttar prashant mein paaee jaati haye-isaki sabse dakshini pahunch ack rekha haye joe lagbhag japan key dakshini sire seey baajaa california praaydweep key dakshini sire, okhotsk key samudra aur berring samudra taka jaati haye. anumaanit 1.1 laakh uttari farr seal iss seema mein paae jaate hain, jinamen seey lagbhag aadhe poorv berring samudra mein pribilof dweepon parr prajanan karate hain. paschimi berring samudra mein commander dweepon parr ack aur 200-250 hazaar nasl, okhotsk key dakshin-paschim samudra mein sakhalin key tata seey door tayulani dweep parr kuchh 100,000 nasl, aur roose mein kendriya kuril dweepon mein ack aur 60-70 hazaar nasl. chhote naukaghar (lagbhag 5,000 janwar) aleutian shrinkhala mein bogosloff dweep, channel dweep samooh mein saine myguel dweep aur california key tata seey door dakshin farlon dweep parr paae jaate hain. holocene farr seal bone collegen (δ13c aur δ15n) key sthir isotope vishleshan seey haal key sakshya ingit karate hain kii samudri farr vyaapaar seey pahale, inn jaanvaron key liye british kolambiya, california mein sthaaniya rookari mein prajanan karna adhik aam thaa, aur sambhavatah uttar america key uttar-paschimi tata key adhikansh hisson mein.
sardiyon key dauran, uttari farr seal dakshin kii or ack shuddh andolan pradarshit karate hain, jisamen russie rookari key janwar niyamit roop seey japan key samudra mein japani aur koriyai jall mein pravesh karate hain aur alaska key janwar madhya aur purvi prashant key saath british kolambiya, kanada aur baajaa california taka dakshin kii or badhate hain.
uttari farr seal kii seema lagbhag steller samudri sheron key saath overlap hoti haye; kabhi-kabhi prajanan rookari mein sahvaas hotaa haye, vishesh roop seey kuril, commander dweepon aur tayulen dweepon mein. uttari golardh mein paaee jaane vaali ekmatra anya farr seal guadalupe farr seal haye joe california mein uttari farr seal kii seema key saath thodi adhik hoti haye.
paaristhitiki.
farr seal avasarvaadi feeder hain, joe mukhya roop seey sthaaniya upalabdhata key aadhar parr pelogic machhali aur squid koo khaate hain. pehchaane gaye machhali shikaar mein heck, herring, lalten machhali, capellin, pollock aur mackeral shamil hain. unakaa bhojan vyavhaar mukhya roop seey ekant haye.
uttari farr muharon koo mukhya roop seey shark aur ghaatak whale dwara shikaar kiya jaataa haye. kabhi-kabhi, bahut chhote jaanvaron koo steller samudri shher khaate hain. archtic lomadiyon dwara jeevit pillon parr kabhi-kabhaar shikaar bhee dekhaa gayaa haye.
prajanan rookari parr pillon key bahut adhik ghanatva aur cumm umr mein maataon dwara apani chaaran yatra shuru karane key kaaran, mrityu darr apekshaakrit adhik hoe sakati haye. natijatan, kaee safai karmchaariyon, vishesh roop seey gull aur archtic lomadiyon key aahar koo samriddh karane mein pilla key shav mahatvapurna hain.
2017 mein, farr seal pillon key naak key maarg seey spiny juon key 14 namoone ekatra kiye gaye they. 2021 mein, inn spiny juon kii pehchaan advitiya bristal vyavastha key roop mein kii gaee thee, aur inhen vaigyaanik naam "entartophthyrus nevelskoi" diyaa gayaa thaa. inca naam prasiddh russie khojkarta, admiral gennadi ivanovic nevelsky key naam parr rakhaa gayaa thaa.
prajanan vyavhaar.
seal maee mein prajanan naukaaon mein pravesh karate hain. aam taur parr, badey narr (10 varsh aur usase adhik umr key) pahale lautate hain aur mukhya prajanan sthalon key liye pratispardha karate hain. way prajanan key mausam kii poori avadhi mein upvaas karate hue rookari parr rahate hain. maadaaen kuchh samay baad aatee hain, aur usake turant baad janm detee hain. anya sabhi ottarids kii tarah, uttari farr seal bahuvivaah hain, jinamen kuchh narr ack prajanan mausam mein 50 maadaon key saath prajanan karate hain. steller samudri sheron key vipareet, jinake saath way nivaas sthaan aur kuchh prajanan sthalon koo saajha karate hain, uttari farr seal apane haram mein alag-alag maadaon key malik hotey hain, joe aksar maadaon key liye padosi purushon key saath aakramak roop seey pratispardha karate hain. inn sanghrshon key parinamswarup mahilaaon kii mrityu darj kii gaee haye, halanki purush shayed hii kabhi gambhir roop seey ghayal hotey hain. yuva purush ack haram key kshetra koo praapt karane aur banaae rakhane mein asamarth hotey hain, aamtaur parr padosi "dhulai" mein, kabhi-kabhi ack badey purush koo visthaapit karane key prayaas mein rookari key prajanan vargon mein ghuspaith karate hain.
apane jeevan key pahale aathh seey duss dinon taka apane pillon key saath rahane key baad, mahilaaen ack saptah taka chalane vaali yaatraaen shuru curr detee hain. yeye yaatraaen doodh chhodane seey pahale lagbhag chaar maheene taka chalati hain, joe aamtaur parr octuber mein achaanak hoti hain. ack nauka parr adhikansh janwar paani mein pravesh karate hain aur navambar key anta mein fail jaate hain, aamtaur parr dakshin kii or palayan karate hain. prajanan sthal nishtha aam taur parr farr seal vaali mahilaaon key liye adhik hoti haye, halanki yuva purush anya maujooda naukaaon mein fail sakate hain, yaa kabhi-kabhi nae dhulai sthal paa sakate hain.
juuna key anta seey julaai key anta taka peak birthing kii tulanaa mein kuchh dair baad peak matting hoti haye. kaee anya ottarids kii tarah, nishechit andey mein pratyaropan mein deree hoti haih blastocyst charan honey key baad, vikas rook jaataa haye aur nishechan key chaar maheene baad pratyaropan hotaa haye. kull milakar, garbhavastha lagbhag ack varsh taka chalati haye, jaise kii ack dee gaee garmi mein paida honey vaale pille pichhale varsh key prajanan chakr key utpaad hain.
sthiti.
haal hii mein, farr seal aabaadi kii sthiti key baare mein chinta badhee haye, vishesh roop seey pribilof dweepon mein, jahaan 1970 key dashak seey pilla utpaadan mein lagbhag 50 pratishat kii kamee aaee haye, prati varsh lagbhag 6-7% kii nirantar girawat key saath. isake kaaran unhein yuu key tahat "kamjor" key roop mein soochibaddh kiya gayaa haye.aiss. luptapray prajaati adhiniyam, aur unake vyavhaar aur chaara paaristhitiki mein ack gahan shodh karyakram kaa netritva kiya haye. sambhaavit karanon mein ghaatak whale dwara shikaar mein vriddhi, matsya paalan key saath pratispardha aur jalavaayu parivartan key prabhaav shamil hain, lekin aaj taka koee vaigyaanik sahamati naheen bunny haye. iucn (2008) ney prajaatiyon koo "asurakshit" shreni key tahat vaishvik star parr khatare mein soochibaddh kiya haye.
farr kaa vyaapaar.
uttari farr seal hajaaron varshon seey mool poorvottar asiai aur alaska mool nivaasiyon kaa mukhya bhojan rhaa haye. 17veen aur 18veen shatabdi mein kamchatka aur alaska mein europeeya logon key aagaman key baad, pahale roose seey aur baad mein uttari america seey, ack atyadhik nishkarshan vaanijyik farr vyaapaar huaa. 1786 mein jaba gavril pribilov ney sent kii khoj kii tou vaanijyik farr vyaapaar mein teji aaee. george dweep, muharon kaa ack pramukh samooh. 1786 seey 1867 taka anumaanit 25 laakh muhar maare gaye they. iss vyaapaar key kaaran farr seal kii sankhya mein girawat aaee. 1834 mein rusiyon dwara pribilof dweepon parr farr seal fasal parr pahali baar pratibandh lagaae gaye they. 1867 mein sanyukt raajya america dwara roose seey alaska khareedane key turant baad, yuu. aiss.aiss. koshagar koo pribilof parr sealing visheshaadhikaar patte parr dene key liye adhikrit kiya gayaa thaa, joe alaska vaanijyik company koo kuchh hudd taka udaartaa seey diye gaye they. 1870 seey 1909 taka, pelogic sealing ney farr seal kii aabaadi parr ack mahatvapurna prabhaav daala, jaise kii aitihaasik roop seey laakhon vyaktiyon key crum parr sankhya, 1912 mein 216,000 jaanvaron key nichale star taka pahunch gaee.
grate britten (kanada kii or seey), japan, roose aur sanyukt raajya america dwara 1911 key uttar prashant farr seal sammelan parr hastakshar karane key saath mahatvapurna fasal koo cumm yaa jyada giraftar curr liya gayaa thaa. dwiteeya vishva yuddh key dauran hastaksharkartaon key beach shatruta kii shuruat taka 1911 kaa sammelan lagu rhaa, aur vanyajeev sanrakshan koo sambodhit karane vaali pahali antarrashtriya sandhi key roop mein bhee ullekhaniya haye. ack kramik sammelan parr 1957 mein hastakshar kiye gaye aur 1963 mein ack protocol dwara sanshodhit kiya gayaa. itihas kii ack aantarik vibhaag kii sameeksha mein kahaa gayaa haye kii 1966 key farr seal adhiniyam (saarvajanik kaanoon 89-702) dwara antarrashtriya sammelan koo gharelu star parr lagu kiya gayaa thaa. vartamaan mein, sent key nivaasiyon dwara ack nirvaah shikaar. paul dweep aur roose mein ack mahatvaheen fasal kii anumati haye.

