{"id":15831,"date":"2023-05-19T23:50:27","date_gmt":"2023-05-19T23:50:27","guid":{"rendered":"https:\/\/www.lifescienceart.com\/?p=15831"},"modified":"2023-05-19T23:50:27","modified_gmt":"2023-05-19T23:50:27","slug":"unveiling-the-mystery-of-white-whales-the-story-of-migaloo-and-beyond","status":"publish","type":"post","link":"https:\/\/www.lifescienceart.com\/cs\/science\/marine-biology\/unveiling-the-mystery-of-white-whales-the-story-of-migaloo-and-beyond\/","title":{"rendered":"B\u00edl\u00e9 velryby: Odhalujeme tajemstv\u00ed nejvz\u00e1cn\u011bj\u0161\u00edch mo\u0159sk\u00fdch tvor\u016f"},"content":{"rendered":"

B\u00edl\u00e9 velryby: Odhalujeme tajemstv\u00ed nejvz\u00e1cn\u011bj\u0161\u00edch mo\u0159sk\u00fdch tvor\u016f<\/h2>\n\n

Migaloo: Slavn\u00e1 b\u00edl\u00e1 keporkak<\/h2>\n\n

Migaloo, nejzn\u00e1m\u011bj\u0161\u00ed b\u00edl\u00e1 keporkak, uchv\u00e1til sv\u011bt sv\u00fdm jedine\u010dn\u00fdm vzhledem. Poprv\u00e9 byl spat\u0159en v roce 1991 a od t\u00e9 doby se stal ikonou mo\u0159sk\u00e9 biologie. V\u011bdci zjistili, \u017ee Migaloo je 25-27let\u00fd samec, kter\u00fd byl identifikov\u00e1n podle sv\u00e9 charakteristick\u00e9 p\u00edsn\u011b a anal\u00fdzy DNA.<\/p>\n\n

Vz\u00e1cnost b\u00edl\u00fdch keporkak\u016f<\/h2>\n\n

B\u00edl\u00e9 keporkaci jsou mimo\u0159\u00e1dn\u011b vz\u00e1cn\u00ed, na cel\u00e9m sv\u011bt\u011b jsou zn\u00e1mi pouze \u010dty\u0159i jedinci. Krom\u011b Migaloo je zde je\u0161t\u011b Willow v Arktid\u011b, Bahloo na Velk\u00e9m bari\u00e9rov\u00e9m \u00fatesu a ml\u00e1d\u011b zn\u00e1m\u00e9 jako \u201eMigaloo Jr.\u201c. Tyto velryby vykazuj\u00ed r\u016fzn\u00e9 stupn\u011b pigmentace, p\u0159i\u010dem\u017e Migaloo je jedin\u00fd zdokumentovan\u00fd exempl\u00e1\u0159, kter\u00fd je zcela b\u00edl\u00fd.<\/p>\n\n

Rozezn\u00e1v\u00e1n\u00ed jedine\u010dn\u00fdch velryb<\/h2>\n\n

V\u011bdci se spol\u00e9haj\u00ed na v\u00fdrazn\u00e9 vzory a znaky, aby rozli\u0161ili b\u00edl\u00e9 velryby. Bahloo m\u00e1 \u010dern\u00e9 skvrny, Willow m\u00e1 \u010dern\u00e9 skvrny na ocasu a Migaloov\u016fv zcela b\u00edl\u00fd vzhled jej odli\u0161uje od ostatn\u00edch. Tyto jedine\u010dn\u00e9 vlastnosti umo\u017e\u0148uj\u00ed v\u011bdc\u016fm sledovat a identifikovat jednotliv\u00e9 velryby.<\/p>\n\n

Z\u00e1hada alb\u00ednsk\u00fdch velryb<\/h2>\n\n

Mnoho \u010dl\u00e1nk\u016f ozna\u010duje b\u00edl\u00e9 velryby jako alb\u00ednsk\u00e9, ale tuto diagn\u00f3zu m\u016f\u017ee b\u00fdt obt\u00ed\u017en\u00e9 potvrdit. Albinismus, genetick\u00e1 porucha, vede k \u00fapln\u00e9 absenci melaninu, co\u017e m\u00e1 za n\u00e1sledek b\u00edlou nebo r\u016f\u017eovou k\u016f\u017ei a o\u010di. Willow a Bahloo s jejich \u010dern\u00fdmi znaky jsou pravd\u011bpodobn\u011bji leucisti\u010dt\u00ed, se skvrnitou ztr\u00e1tou pigmentu.<\/p>\n\n

Migaloovy hn\u011bd\u00e9 o\u010di d\u00e1le zpochyb\u0148uj\u00ed jeho status alb\u00edna. M\u00edsto toho je pova\u017eov\u00e1n za \u201ehypo-pigmentovan\u00e9ho\u201c, co\u017e znamen\u00e1 obecnou ztr\u00e1tu barvy k\u016f\u017ee. V\u011bdci doufaj\u00ed, \u017ee analyzuj\u00ed Migaloovo DNA na genetick\u00e9 varianty spojen\u00e9 s poruchami pigmentace, aby ur\u010dili jeho p\u0159esn\u00fd stav.<\/p>\n\n

Dal\u0161\u00ed b\u00edl\u00e9 velryby<\/h2>\n\n

B\u00edl\u00e9 velryby nejsou v\u00fdsadou pouze keporkak\u016f. V posledn\u00edch letech byla spat\u0159ena b\u00edl\u00e1 ml\u00e1\u010fata velryb gr\u00f3nsk\u00fdch, kosatek a delf\u00edn\u016f. Tato neobvykl\u00e1 pozorov\u00e1n\u00ed zd\u016fraz\u0148uj\u00ed rozmanitost poruch pigmentace v \u017eivo\u010di\u0161n\u00e9 \u0159\u00ed\u0161i, v\u010detn\u011b koal\u016f, tu\u010d\u0148\u00e1k\u016f a goril.<\/p>\n\n

V\u00fdznam genetick\u00e9ho v\u00fdzkumu<\/h2>\n\n

Genetick\u00fd v\u00fdzkum hraje z\u00e1sadn\u00ed roli v pochopen\u00ed genetick\u00e9ho z\u00e1kladu poruch pigmentace u b\u00edl\u00fdch velryb. Studiem jejich DNA doufaj\u00ed v\u011bdci, \u017ee identifikuj\u00ed konkr\u00e9tn\u00ed varianty zodpov\u011bdn\u00e9 za jejich jedine\u010dn\u00e9 zbarven\u00ed. Tento v\u00fdzkum m\u016f\u017ee poskytnout poznatky o evoluci a ochran\u011b t\u011bchto vz\u00e1cn\u00fdch mo\u0159sk\u00fdch \u017eivo\u010dich\u016f.<\/p>\n\n

Odhalen\u00ed tajemstv\u00ed Migaloo<\/h2>\n\n

Migaloova b\u00edl\u00e1 barva zaujala v\u011bdce i milovn\u00edky velryb. Prost\u0159ednictv\u00edm prob\u00edhaj\u00edc\u00edho v\u00fdzkumu a pozorov\u00e1n\u00ed pokra\u010dujeme v odhalov\u00e1n\u00ed tajemstv\u00ed obklopuj\u00edc\u00edho tuto mimo\u0159\u00e1dnou velrybu a jej\u00ed b\u00edl\u00e9 spole\u010dn\u00edky. Studium t\u011bchto vz\u00e1cn\u00fdch mo\u0159sk\u00fdch tvor\u016f prohlubuje na\u0161e porozum\u011bn\u00ed slo\u017eitosti p\u0159\u00edrody a rozmanitosti \u017eivota na na\u0161\u00ed planet\u011b.<\/p>","protected":false},"excerpt":{"rendered":"

B\u00edl\u00e9 velryby: Odhalujeme tajemstv\u00ed nejvz\u00e1cn\u011bj\u0161\u00edch mo\u0159sk\u00fdch tvor\u016f Migaloo: Slavn\u00e1 b\u00edl\u00e1 keporkak Migaloo, nejzn\u00e1m\u011bj\u0161\u00ed b\u00edl\u00e1 keporkak, uchv\u00e1til sv\u011bt sv\u00fdm jedine\u010dn\u00fdm vzhledem. Poprv\u00e9 byl spat\u0159en v roce 1991 a od t\u00e9 doby…<\/p>\n","protected":false},"author":6,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[84],"tags":[21041,21042,21040,361,21043,21044,5478,21039],"class_list":["post-15831","post","type-post","status-publish","format-standard","hentry","category-marine-biology","tag-albinism","tag-leucism","tag-migaloo","tag-marine-biology","tag-pigment-disorders","tag-nature-mysteries","tag-rare-animals","tag-white-whales"],"_links":{"self":[{"href":"https:\/\/www.lifescienceart.com\/cs\/wp-json\/wp\/v2\/posts\/15831","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.lifescienceart.com\/cs\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.lifescienceart.com\/cs\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.lifescienceart.com\/cs\/wp-json\/wp\/v2\/users\/6"}],"replies":[{"embeddable":true,"href":"https:\/\/www.lifescienceart.com\/cs\/wp-json\/wp\/v2\/comments?post=15831"}],"version-history":[{"count":1,"href":"https:\/\/www.lifescienceart.com\/cs\/wp-json\/wp\/v2\/posts\/15831\/revisions"}],"predecessor-version":[{"id":15832,"href":"https:\/\/www.lifescienceart.com\/cs\/wp-json\/wp\/v2\/posts\/15831\/revisions\/15832"}],"wp:attachment":[{"href":"https:\/\/www.lifescienceart.com\/cs\/wp-json\/wp\/v2\/media?parent=15831"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.lifescienceart.com\/cs\/wp-json\/wp\/v2\/categories?post=15831"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.lifescienceart.com\/cs\/wp-json\/wp\/v2\/tags?post=15831"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}