Unsplash<\/a><\/figcaption><\/figure>\n\n\n\nA megfigyel\u00e9s \u00e9s elemz\u00e9s:<\/p>\n\n\n\n
Az izot\u00f3pok olyan elemek, amelyeknek azonos sz\u00e1m\u00fa protonjuk, de elt\u00e9r\u0151 sz\u00e1m\u00fa neutronjuk van, \u00e9s amelyek id\u0151vel nem bomlanak el.<\/p>\n\n\n\n
Ezeket az izot\u00f3pelemeket a v\u00e1ndorl\u00f3 \u00e1llatok t\u00e1pl\u00e1l\u00e9kforr\u00e1s\u00e1nak meghat\u00e1roz\u00e1s\u00e1val hozt\u00e1k \u00f6sszef\u00fcgg\u00e9sbe.<\/p>\n\n\n\n
A szemlencse lamell\u00e1ir\u00f3l azt mondj\u00e1k, hogy feh\u00e9rj\u00e9kben gazdagok. Ezekhez a feh\u00e9rj\u00e9khez izot\u00f3pos elemek k\u00f6t\u0151dnek, amelyek izot\u00f3pos szignat\u00far\u00e1t eredm\u00e9nyeznek, amely stabil izot\u00f3pelemz\u00e9ssel \u00e9rt\u00e9kelhet\u0151.<\/p>\n\n\n\n
A fiatal lazachalat h\u00e1rom k\u00fcl\u00f6nb\u00f6z\u0151 izot\u00f3pos \u00e9l\u0151helyen, k\u00fcl\u00f6nb\u00f6z\u0151 t\u00e1pl\u00e1l\u00e9kh\u00e1l\u00f3zattal vizsg\u00e1lt\u00e1k a halak szemgoly\u00f3j\u00e1nak arch\u00edv sz\u00f6vet\u00e9nek sz\u00e1mszer\u0171s\u00edt\u00e9se c\u00e9lj\u00e1b\u00f3l.<\/p>\n\n\n\n
A felhaszn\u00e1lt stabil izot\u00f3pelemek a k\u00f6vetkez\u0151k voltak: 35 k\u00e9n, 13 sz\u00e9n \u00e9s 15 nitrog\u00e9n (34<\/sup>S, 13<\/sup>C,15<\/sup>N).<\/p>\n\n\n\nA k\u00e9nizot\u00f3p hasznos a t\u00e1pl\u00e1l\u00e9kforr\u00e1sok megismer\u00e9s\u00e9ben. A part menti v\u00e1ndorl\u00e1sb\u00f3l sz\u00e1rmaz\u00f3 halak sz\u00e9n-13 izot\u00f3pban gazdagok, ez\u00e9rt a v\u00e1ndorl\u00e1s meghat\u00e1roz\u00e1s\u00e1ra haszn\u00e1lj\u00e1k.<\/p>\n\n\n\n
A nitrog\u00e9nizot\u00f3pot a v\u00e1ndorl\u00f3 \u00e1llatok trofikus szintjeinek szab\u00e1lyoz\u00e1s\u00e1ban haszn\u00e1lj\u00e1k.<\/p>\n\n\n\n
A stabil izot\u00f3pelemz\u00e9s a \"az vagy, amit megeszel\" koncepci\u00f3 alapj\u00e1n k\u00e9sz\u00fclt.<\/p>\n\n\n\n
Ennek alapj\u00e1n a tud\u00f3sok h\u00e1rom k\u00fcl\u00f6nb\u00f6z\u0151 \u00e9l\u0151helyen nevelt kifejlett lazachalak sz\u00f6vet\u00e9ben olyan izot\u00f3pelemeket vizsg\u00e1ltak, mint a k\u00e9n, a sz\u00e9n \u00e9s a nitrog\u00e9n.<\/p>\n\n\n\n
Vizsg\u00e1latuk sor\u00e1n meg\u00e1llap\u00edtott\u00e1k, hogy a szezon\u00e1lis \u00e1rter\u00fcleten nevelt halaknak t\u00f6bb r\u00e9teg lencs\u00e9je volt, \u00e9s sokkal gyorsabban n\u0151ttek, mint a foly\u00f3ban \u00e9s a keltet\u0151helyen nevelt halak.<\/p>\n\n\n\n
Az izot\u00f3pelemz\u00e9s azt is kimutatta, hogy a halak sz\u00e9n- \u00e9s k\u00e9ntartalma magas volt, ami az elker\u00fcl\u0151 \u00fat rizsf\u00f6ldjeinek k\u00f6sz\u00f6nhet\u0151.<\/p>\n\n\n\n
A szemeshal-goly\u00f3 feh\u00e9rj\u00e9inek \u00e9s az izot\u00f3pelemnek a k\u00f6t\u0151d\u00e9s\u00e9t haszn\u00e1lt\u00e1k a t\u00e1pl\u00e1l\u00e9ktartalom elemz\u00e9s\u00e9re.<\/p>\n\n\n\n
Ett\u0151l eltekintve a fiatal lazachalak szemlencs\u00e9j\u00e9ben stabil izot\u00f3pelemet r\u00f6gz\u00edtettek, ami a feln\u0151tt halakkal val\u00f3 \u00f6sszehasonl\u00edt\u00e1shoz vezetett, hogy \u00e1ttekinthess\u00e9k \u00e9l\u0151hely\u00fcket \u00e9s t\u00e1pl\u00e1l\u00e9kforr\u00e1saikat.<\/p>\n\n\n\n
Ez a stabil izot\u00f3pelemz\u00e9s (SIA) eszk\u00f6z kisz\u00e9les\u00edtette a k\u00fcl\u00f6nb\u00f6z\u0151 term\u00e9szetv\u00e9delmi projektek alkalmaz\u00e1si k\u00f6r\u00e9t. Haszn\u00e1lhat\u00f3 a k\u00fcl\u00f6nb\u00f6z\u0151 v\u00e1ndorl\u00f3 \u00e1llatok \u00e9l\u0151helyeinek elk\u00fcl\u00f6n\u00edt\u00e9s\u00e9re, mivel a jelenlegi \u00e9ghajlati v\u00e1ltoz\u00e1sok \u00e9s az emberi tev\u00e9kenys\u00e9gek miatt is nagym\u00e9rt\u00e9kben \u00e9rintettek.<\/p>\n\n\n\n
Ha t\u00f6bbet szeretne megtudni a kutat\u00e1sukr\u00f3l, n\u00e9zze meg az al\u00e1bbi hivatkoz\u00e1st.<\/p>\n\n\n\n
Miranda Bell-Tilcock, Carson A. Jeffres, Andrew L. Rypel, Ted R. Sommer, Jacob V. E. Katz, George Whitman, Rachel C. Johnson. A halszemlencs\u00e9k \u00e9trendrekonstrukci\u00f3j\u00e1nak fejleszt\u00e9se<\/strong>. \u00d6kol\u00f3giai \u00e9s evol\u00faci\u00f3s m\u00f3dszerek<\/em>, 2021; DOI: 10.1111\/2041-210X.13543<\/a><\/p>\n\n\n\n<\/p>","protected":false},"excerpt":{"rendered":"
\u00cdgy van, minden v\u00e1lasz a szemekben rejlik. M\u00e9g akkor is, ha a halak t\u00f6rt\u00e9net\u00e9r\u0151l van sz\u00f3. Miranda Bell tud\u00f3s \u00e9s csapata a Kaliforniai Egyetemr\u0151l szeml\u00e9ltette, hogy a halak szemlencs\u00e9inek seg\u00edts\u00e9g\u00e9vel meg lehet j\u00f3solni a halak t\u00e1pl\u00e1lkoz\u00e1s\u00e1nak \u00e9s v\u00e1ndorl\u00e1s\u00e1nak v\u00e1ltoz\u00e1sait. A v\u00edzi\u00e1llatok v\u00e1ndorl\u00e1sa \u00e1ltal\u00e1ban [...]<\/p>","protected":false},"author":18,"featured_media":12903,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":[],"categories":[959,28],"tags":[554],"yoast_head":"\n
Isotopic analysis of fish eyeballs reveals big things<\/title>\n<meta name=\"description\" content=\"That's right, all the answers lie in the eyes. Even when it comes to the history of the fishes.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/mindthegraph.com\/blog\/hu\/izotopu-analize-zivju-eyeballs-migracijas-dietarie-avoti\/\" \/>\n<meta property=\"og:locale\" content=\"hu_HU\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Isotopes analysis of fish eyeballs reveal animal's migratory path and dietary source\" \/>\n<meta property=\"og:description\" content=\"That's right, all the answers lie in the eyes. Even when it comes to the history of the fishes.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/mindthegraph.com\/blog\/hu\/izotopu-analize-zivju-eyeballs-migracijas-dietarie-avoti\/\" \/>\n<meta property=\"og:site_name\" content=\"Mind the Graph Blog\" \/>\n<meta property=\"article:published_time\" content=\"2021-05-12T18:32:18+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2022-10-18T11:09:17+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/mindthegraph.com\/blog\/wp-content\/uploads\/2021\/05\/the-eyes-speak-the-truth.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"1200\" \/>\n\t<meta property=\"og:image:height\" content=\"628\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"Bruna Soldera\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:title\" content=\"Isotopes analysis of fish eyeballs reveal animal's migratory path and dietary source\" \/>\n<meta name=\"twitter:image\" content=\"https:\/\/mindthegraph.com\/blog\/wp-content\/uploads\/2021\/05\/post-twitter-the-eyes-speak-the-truth.jpg\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"Bruna Soldera\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"3 minutes\" \/>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"Isotopic analysis of fish eyeballs reveals big things","description":"That's right, all the answers lie in the eyes. Even when it comes to the history of the fishes.","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/mindthegraph.com\/blog\/hu\/izotopu-analize-zivju-eyeballs-migracijas-dietarie-avoti\/","og_locale":"hu_HU","og_type":"article","og_title":"Isotopes analysis of fish eyeballs reveal animal's migratory path and dietary source","og_description":"That's right, all the answers lie in the eyes. Even when it comes to the history of the fishes.","og_url":"https:\/\/mindthegraph.com\/blog\/hu\/izotopu-analize-zivju-eyeballs-migracijas-dietarie-avoti\/","og_site_name":"Mind the Graph Blog","article_published_time":"2021-05-12T18:32:18+00:00","article_modified_time":"2022-10-18T11:09:17+00:00","og_image":[{"width":1200,"height":628,"url":"https:\/\/mindthegraph.com\/blog\/wp-content\/uploads\/2021\/05\/the-eyes-speak-the-truth.jpg","type":"image\/jpeg"}],"author":"Bruna Soldera","twitter_card":"summary_large_image","twitter_title":"Isotopes analysis of fish eyeballs reveal animal's migratory path and dietary source","twitter_image":"https:\/\/mindthegraph.com\/blog\/wp-content\/uploads\/2021\/05\/post-twitter-the-eyes-speak-the-truth.jpg","twitter_misc":{"Written by":"Bruna Soldera","Est. reading time":"3 minutes"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"WebPage","@id":"https:\/\/mindthegraph.com\/blog\/lv\/izotopu-analize-zivju-eyeballs-migracijas-dietarie-avoti\/","url":"https:\/\/mindthegraph.com\/blog\/lv\/izotopu-analize-zivju-eyeballs-migracijas-dietarie-avoti\/","name":"Isotopic analysis of fish eyeballs reveals big things","isPartOf":{"@id":"https:\/\/mindthegraph.com\/blog\/#website"},"datePublished":"2021-05-12T18:32:18+00:00","dateModified":"2022-10-18T11:09:17+00:00","author":{"@id":"https:\/\/mindthegraph.com\/blog\/#\/schema\/person\/6a3f0be2cd19879e0b9b54457a069602"},"description":"That's right, all the answers lie in the eyes. Even when it comes to the history of the fishes.","breadcrumb":{"@id":"https:\/\/mindthegraph.com\/blog\/lv\/izotopu-analize-zivju-eyeballs-migracijas-dietarie-avoti\/#breadcrumb"},"inLanguage":"hu-HU","potentialAction":[{"@type":"ReadAction","target":["https:\/\/mindthegraph.com\/blog\/lv\/izotopu-analize-zivju-eyeballs-migracijas-dietarie-avoti\/"]}]},{"@type":"BreadcrumbList","@id":"https:\/\/mindthegraph.com\/blog\/lv\/izotopu-analize-zivju-eyeballs-migracijas-dietarie-avoti\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:\/\/mindthegraph.com\/blog\/"},{"@type":"ListItem","position":2,"name":"The eyes speak the truth: Isotopes analysis of fish eyeballs reveal details of animal’s migratory path and dietary source"}]},{"@type":"WebSite","@id":"https:\/\/mindthegraph.com\/blog\/#website","url":"https:\/\/mindthegraph.com\/blog\/","name":"Mind the Graph Blog","description":"Your science can be beautiful!","potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/mindthegraph.com\/blog\/?s={search_term_string}"},"query-input":"required name=search_term_string"}],"inLanguage":"hu-HU"},{"@type":"Person","@id":"https:\/\/mindthegraph.com\/blog\/#\/schema\/person\/6a3f0be2cd19879e0b9b54457a069602","name":"Bruna Soldera","image":{"@type":"ImageObject","inLanguage":"hu-HU","@id":"https:\/\/mindthegraph.com\/blog\/#\/schema\/person\/image\/","url":"https:\/\/secure.gravatar.com\/avatar\/93afc55eb938f215d2b7a23322de49be?s=96&d=mm&r=g","contentUrl":"https:\/\/secure.gravatar.com\/avatar\/93afc55eb938f215d2b7a23322de49be?s=96&d=mm&r=g","caption":"Bruna Soldera"},"sameAs":["http:\/\/mindthegraph.com","https:\/\/www.linkedin.com\/in\/bruna-soldera-826426126\/"],"url":"https:\/\/mindthegraph.com\/blog\/hu\/author\/bruna\/"}]}},"_links":{"self":[{"href":"https:\/\/mindthegraph.com\/blog\/hu\/wp-json\/wp\/v2\/posts\/12901"}],"collection":[{"href":"https:\/\/mindthegraph.com\/blog\/hu\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/mindthegraph.com\/blog\/hu\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/mindthegraph.com\/blog\/hu\/wp-json\/wp\/v2\/users\/18"}],"replies":[{"embeddable":true,"href":"https:\/\/mindthegraph.com\/blog\/hu\/wp-json\/wp\/v2\/comments?post=12901"}],"version-history":[{"count":4,"href":"https:\/\/mindthegraph.com\/blog\/hu\/wp-json\/wp\/v2\/posts\/12901\/revisions"}],"predecessor-version":[{"id":12909,"href":"https:\/\/mindthegraph.com\/blog\/hu\/wp-json\/wp\/v2\/posts\/12901\/revisions\/12909"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/mindthegraph.com\/blog\/hu\/wp-json\/wp\/v2\/media\/12903"}],"wp:attachment":[{"href":"https:\/\/mindthegraph.com\/blog\/hu\/wp-json\/wp\/v2\/media?parent=12901"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/mindthegraph.com\/blog\/hu\/wp-json\/wp\/v2\/categories?post=12901"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/mindthegraph.com\/blog\/hu\/wp-json\/wp\/v2\/tags?post=12901"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}
![\"\u00f6t](\"https:\/\/mindthegraph.com\/blog\/wp-content\/uploads\/2021\/05\/makenzie-cooper-bo3bmruek2w-unsplash-1024x683.jpg\")
<\/a>