{"id":3473,"date":"2021-09-26T20:46:11","date_gmt":"2021-09-26T20:46:11","guid":{"rendered":"https:\/\/www.lifescienceart.com\/?p=3473"},"modified":"2021-09-26T20:46:11","modified_gmt":"2021-09-26T20:46:11","slug":"giant-larvacean-b-charon-rediscovered-after-a-century","status":"publish","type":"post","link":"https:\/\/www.lifescienceart.com\/cs\/science\/marine-science\/giant-larvacean-b-charon-rediscovered-after-a-century\/","title":{"rendered":"Ob\u0159\u00ed larvaceovec znovu objeven po stolet\u00ed"},"content":{"rendered":"<h2 class=\"wp-block-heading\">Ob\u0159\u00ed larvaceovec Bathochordaeus charon: Objeven znovu po stolet\u00ed<\/h2>\n\n<h2 class=\"wp-block-heading\">Objeven\u00ed stalet\u00e9ho tajemstv\u00ed<\/h2>\n\n<p>Koncem 19. stolet\u00ed se biolog Carl Chun vydal na expedici Valdivia, kde u\u010dinil mimo\u0159\u00e1dn\u00fd objev: ob\u0159\u00edho larvaceovce obalen\u00e9ho v pr\u016fsvitn\u00e9m &#8220;dome\u010dku z hlenu&#8221;. Tento z\u00e1hadn\u00fd tvor nazvan\u00fd Bathochordaeus charon z\u016fstal v\u00edce ne\u017e stolet\u00ed nepolapiteln\u00fd.<\/p>\n\n<h2 class=\"wp-block-heading\">Vz\u00e1cn\u00e9 a z\u00e1hadn\u00e9 stvo\u0159en\u00ed<\/h2>\n\n<p>Larvaceovci jsou mal\u00ed, pulci podobn\u00ed pl\u00e1\u0161t\u011bnci s primitivn\u00ed p\u00e1te\u0159\u00ed. Ka\u017ed\u00fd den si stav\u00ed &#8220;dome\u010dky&#8221; z lepkav\u00e9ho hlenu, aby zachytili \u010d\u00e1stice potravy. Chun\u016fv larvaceovec byl ale v\u00fdjime\u010dn\u00fd, dor\u016fstal d\u00e9lky t\u00e9m\u011b\u0159 deseti centimetr\u016f a jeho dome\u010dek z hlenu m\u011bl v pr\u016fm\u011bru a\u017e metr.<\/p>\n\n<h2 class=\"wp-block-heading\">Ztracen\u00fd a nalezen\u00fd<\/h2>\n\n<p>Chunovi p\u016fvodn\u00ed exempl\u00e1\u0159e se ztratily, co\u017e vedlo mnoho lid\u00ed k pochybnostem o jeho objevu. O v\u00edce ne\u017e stolet\u00ed pozd\u011bji v\u0161ak v\u011bdci z Monterey Bay Aquarium Research Institute (MBARI) na\u0161li dal\u0161\u00ed exempl\u00e1\u0159 B. charon, \u010d\u00edm\u017e potvrdili jeho existenci.<\/p>\n\n<h2 class=\"wp-block-heading\">Expedice ROV p\u0159in\u00e1\u0161\u00ed v\u00fdsledky<\/h2>\n\n<p>B\u011bhem rutinn\u00ed mise ROV (podvodn\u00ed d\u00e1lkov\u011b ovl\u00e1dan\u00e9 vozidlo) zahl\u00e9dl Rob Sherlock, vedouc\u00ed v\u00fdzkumn\u00fd technik, dev\u00edticentimetrov\u00e9ho tvora, kter\u00fd se podobal Chunovu popisu. Po prozkoum\u00e1n\u00ed si Sherlock uv\u011bdomil, \u017ee se jedn\u00e1 o vyh\u00fdbav\u00e9ho B. charon. Genetick\u00e1 anal\u00fdza potvrdila jeho toto\u017enost.<\/p>\n\n<h2 class=\"wp-block-heading\">Ospravedln\u011bn\u00ed pro Chuna<\/h2>\n\n<p>Sherlock\u016fv objev ospravedlnil Chunova pozorov\u00e1n\u00ed po letech skepticismu. V\u011bdci z MBARI prozkoumali 25 let z\u00e1znam\u016f z ROV a na\u0161li dal\u0161\u00edch 12 v\u00fdskyt\u016f B. charon, co\u017e nazna\u010duje, \u017ee a\u010dkoli je vz\u00e1cn\u00fd, nen\u00ed to ojedin\u011bl\u00fd v\u00fdskyt.<\/p>\n\n<h2 class=\"wp-block-heading\">Vy\u0159e\u0161en\u00ed z\u00e1hady<\/h2>\n\n<p>Objev B. charon vy\u0159e\u0161il p\u0159etrv\u00e1vaj\u00edc\u00ed pochybnosti o Chunov\u00fdch n\u00e1lezech a uzav\u0159el p\u0159\u00edpad &#8220;slizk\u00e9 oce\u00e1nsk\u00e9 kapky&#8221;. Toto z\u00e1hadn\u00e9 stvo\u0159en\u00ed z\u016fst\u00e1v\u00e1 sv\u011bdectv\u00edm o rozs\u00e1hl\u00fdch a tajemn\u00fdch hlubin\u00e1ch na\u0161ich oce\u00e1n\u016f.<\/p>\n\n<h2 class=\"wp-block-heading\">Dal\u0161\u00ed poznatky<\/h2>\n\n<ul class=\"wp-block-list\">\n<li>B. charon je ob\u0159\u00ed larvaceovec, kter\u00fd si stav\u00ed velk\u00fd, lepkav\u00fd &#8220;dome\u010dek z hlenu&#8221;, aby zachytil potravu.<\/li>\n<li>Jeho objev v z\u00e1toce Monterey potvrdil Chunova pozorov\u00e1n\u00ed u\u010din\u011bn\u00e1 p\u0159ed v\u00edce ne\u017e stolet\u00edm.<\/li>\n<li>Genetick\u00e1 anal\u00fdza hr\u00e1la z\u00e1sadn\u00ed roli p\u0159i identifikaci tohoto vyh\u00fdbav\u00e9ho tvora.<\/li>\n<li>Technologie ROV se uk\u00e1zala b\u00fdt neocenitelnou p\u0159i pr\u016fzkumu hlubok\u00e9ho mo\u0159e a odhalov\u00e1n\u00ed jeho tajemstv\u00ed.<\/li>\n<li>Znovuobjeven\u00ed B. charon zd\u016fraz\u0148uje v\u00fdznam v\u011bdeck\u00e9 zv\u011bdavosti a vytrvalosti.<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"<p>Ob\u0159\u00ed larvaceovec Bathochordaeus charon: Objeven znovu po stolet\u00ed Objeven\u00ed stalet\u00e9ho tajemstv\u00ed Koncem 19. stolet\u00ed se biolog Carl Chun vydal na expedici Valdivia, kde u\u010dinil mimo\u0159\u00e1dn\u00fd objev: ob\u0159\u00edho larvaceovce obalen\u00e9ho v&hellip;<\/p>\n","protected":false},"author":6,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1300],"tags":[6634,4468,361,6633,613],"class_list":["post-3473","post","type-post","status-publish","format-standard","hentry","category-marine-science","tag-bathochordaeus-charon","tag-deep-sea-creatures","tag-marine-biology","tag-giant-larvacean","tag-scientific-discovery"],"_links":{"self":[{"href":"https:\/\/www.lifescienceart.com\/cs\/wp-json\/wp\/v2\/posts\/3473","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=3473"}],"version-history":[{"count":1,"href":"https:\/\/www.lifescienceart.com\/cs\/wp-json\/wp\/v2\/posts\/3473\/revisions"}],"predecessor-version":[{"id":3474,"href":"https:\/\/www.lifescienceart.com\/cs\/wp-json\/wp\/v2\/posts\/3473\/revisions\/3474"}],"wp:attachment":[{"href":"https:\/\/www.lifescienceart.com\/cs\/wp-json\/wp\/v2\/media?parent=3473"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.lifescienceart.com\/cs\/wp-json\/wp\/v2\/categories?post=3473"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.lifescienceart.com\/cs\/wp-json\/wp\/v2\/tags?post=3473"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}