{"id":11385540,"date":"2010-07-15T00:00:00","date_gmt":"2010-07-14T22:00:00","guid":{"rendered":"https:\/\/alertdiver.eu\/uncategorized-cs_cz\/ostny-a-trny\/"},"modified":"2010-07-15T00:00:00","modified_gmt":"2010-07-14T22:00:00","slug":"ostny-a-trny","status":"publish","type":"post","link":"https:\/\/alertdiver.eu\/cs_CZ\/clanky\/ostny-a-trny\/","title":{"rendered":"OSTNY A TRNY!"},"content":{"rendered":"<p style=\"text-align: justify;\">Mo\u0159e je pln\u00e9 \u00fa\u017easn\u00fdch tvor\u016f, i kdy\u017e jejich popis b\u00fdv\u00e1 v\u011bt\u0161inou v\u00fdsledkem p\u0159\u00edli\u0161 bujn\u00e9 fantazie. N\u011bkte\u0159\u00ed jsou tak velc\u00ed, \u017ee vyvol\u00e1vaj\u00ed hr\u016fzu, a p\u0159itom se ve skute\u010dnosti chovaj\u00ed k \u010dlov\u011bku klidn\u011b a p\u0159\u00edv\u011btiv\u011b. Z mo\u0159sk\u00fdch nebezpe\u010d\u00ed jsou ur\u010dit\u011b nejzn\u00e1m\u011bj\u0161\u00ed \u017eraloci navzdory skute\u010dnosti, \u017ee lidem u\u0161kod\u00ed m\u00e1lokdy.<br \/> Mnohem \u010dast\u011bji jsou to mal\u00ed a ne\u0161kodn\u011b vyhl\u00ed\u017eej\u00edc\u00ed \u017eivo\u010dichov\u00e9, kte\u0159\u00ed v\u0161ak vlastn\u00ed velmi \u00fa\u010dinn\u00e9 zbran\u011b, nap\u0159. ostny a trny, kter\u00fdmi vst\u0159ikuj\u00ed jed.<br \/>&nbsp;<\/p>\n<p style=\"text-align: justify;\">Fotograf po\u0159izuj\u00edc\u00ed podmo\u0159sk\u00e9 sn\u00edmky, kter\u00fd p\u0159i pohybu dozadu narazil na shluk mo\u0159sk\u00fdch je\u017ek\u016f, nebo pot\u00e1p\u011b\u010d, kter\u00fd se dotknul rukou dokonale zamaskovan\u00e9ho bodloka (scorpionfish) sice na sv\u00e1 zran\u011bn\u00ed asi nezem\u0159ou, ale ur\u010dit\u011b ur\u010dit\u011b budou m\u00edt po ur\u010ditou dobu zna\u010dn\u00e9 probl\u00e9my.<br \/> V tomto \u010dl\u00e1nku se budeme zab\u00fdvat podobn\u00fdmi st\u0159ety podrobn\u011bji a diskusi omez\u00edme pouze na zran\u011bn\u00ed zp\u016fsoben\u00e1 \u017eivo\u010dichy vybaven\u00fdmi ostny a trny.<\/p>\n<p style=\"text-align: justify;\"><strong>Ostny a trny<\/strong><br \/> Ostny a trny si \u017eivo\u010dichov\u00e9 uzp\u016fsobili k r\u016fzn\u00fdm \u00fa\u010del\u016fm: zpravidla je pou\u017e\u00edvaj\u00ed k obran\u011b, i kdy\u017e n\u011bkter\u00e9 speci\u00e1ln\u00ed druhy ostn\u016f slou\u017e\u00ed k zachycov\u00e1n\u00ed a shroma\u017e\u010fov\u00e1n\u00ed ko\u0159isti. Ostny a trny mohou b\u00fdt skryt\u00e9, nebo naopak v\u00fdrazn\u011b viditeln\u00e9, \u0159ezav\u00e9 nebo bodav\u00e9, jedovat\u00e9 nebo nejedovat\u00e9. N\u011bkter\u00e9 jsou k\u0159ehk\u00e9, velikost\u00ed i ostrost\u00ed podobn\u00e9 jehle, jin\u00e9 jsou velk\u00e9, siln\u00e9 a zubat\u00e9.<br \/> N\u011bkter\u00e9 \u010deledi mo\u0159sk\u00fdch \u017eivo\u010dich\u016f vlastn\u00ed ostny, kter\u00e9 sice funguj\u00ed podobn\u011b, ale li\u0161\u00ed se um\u00edst\u011bn\u00edm, velikost\u00ed, silou jedu a stupn\u011bm nebezpe\u010d\u00ed pro pot\u00e1p\u011b\u010de. Za\u010dneme n\u011bkter\u00fdmi bezobratl\u00fdmi a budeme zkoumat jejich charakteristick\u00e9 rysy a funkce ostn\u016f, kter\u00e9 jsou pro n\u011b typick\u00e9.<\/p>\n<p style=\"text-align: justify;\"><strong>Ostnat\u00ed bezobratl\u00ed<\/strong><br \/> Ostnoko\u017eci jsou paprskovit\u011b symetri\u010dt\u00ed \u017eivo\u010dichov\u00e9 obvykle s p\u011bti chapadly, nebo-li paprsky a s v\u00edcem\u00e9n\u011b pevnou kostrou zasazenou do t\u011blesn\u00e9 st\u011bny. Do t\u00e9to \u010deledi pat\u0159\u00ed mo\u0159sk\u00e9 hv\u011bzdice a mo\u0159\u0161t\u00ed je\u017eci, z nich\u017e n\u011bkolik druh\u016f m\u00e1 pro pot\u00e1p\u011b\u010de ur\u010dit\u00fd v\u00fdznam.<\/p>\n<p style=\"text-align: justify;\"><strong>Mo\u0159sk\u00e9 hv\u011bzdice <\/strong><br \/> Existuj\u00ed dva zn\u00e1m\u00e9 druhy jedovat\u00fdch mo\u0159sk\u00fdch hv\u011bzdic: Acanthaster planci (s trnovou korunou) a Acanthaster ellisi vyskytuj\u00edc\u00ed se v Indick\u00e9m a Tich\u00e9m oce\u00e1nu, p\u0159\u00edpadn\u011b v oblasti v\u00fdchodn\u00edho Pacifiku. <br \/> Jejich povrch pokr\u00fdvaj\u00ed dlouh\u00e9 ostr\u00e9 trny, kter\u00e9 jsou v\u00e1penat\u00e9 povahy a p\u0159i vbodnut\u00ed se l\u00e1mou, p\u0159i\u010dem\u017e se jejich \u00falomky odstra\u0148uj\u00ed velmi obt\u00ed\u017en\u011b.<\/p>\n<p style=\"text-align: justify;\"><strong>Mo\u0159\u0161t\u00ed je\u017eci<\/strong><br \/> Mo\u0159\u0161t\u00ed je\u017eci jsou vybaveni ostny, kter\u00e9 se druh od druhu od sebe zna\u010dn\u011b li\u0161\u00ed. N\u011bkter\u00e9 druhy maj\u00ed ostny dlouh\u00e9, dut\u00e9, \u0161t\u00edhl\u00e9 a ostr\u00e9 jako jehly. Tato ostrost jim umo\u017e\u0148uje snadn\u00e9 probodnut\u00ed a pot\u00e9 se d\u00edky sv\u00e9 k\u0159ehkosti zlom\u00ed. U n\u011bkter\u00e9ch druh\u016f jsou ostny napln\u011bn\u00e9 jedem a bodnut\u00ed m\u00e1 za n\u00e1sledek okam\u017eit\u00e9 p\u00e1len\u00ed, z\u010derven\u00e1n\u00ed, otok a bolest posti\u017een\u00e9ho m\u00edsta. K dal\u0161\u00edm p\u0159\u00edznak\u016fm pat\u0159\u00ed znecitliv\u011bn\u00ed a ochrnut\u00ed. B\u011b\u017en\u00fdm n\u00e1sledkem je tak\u00e9 infekce. Nebezpe\u010dn\u00fdch mo\u0159sk\u00fdch je\u017ek\u016f existuje pom\u011brn\u011b dost druh\u016f a jejich bodnut\u00ed vyvol\u00e1v\u00e1 podobn\u00e9 p\u0159\u00edznaky. K typick\u00fdm druh\u016fm pat\u0159\u00ed: Toxopneustes pileolus, co\u017e je mo\u0159sk\u00fd je\u017eek vypadaj\u00edc\u00ed jako by nosil plst\u011bnou \u010depi\u010dku a vyskytuje se v oblastech Indick\u00e9ho a Tich\u00e9ho oce\u00e1nu. <\/p>\n<p style=\"text-align: justify;\">Dva jeho bl\u00edzce p\u0159\u00edbuzn\u00e9 druhy jsou Toxopneustes elegans nach\u00e1zej\u00edc\u00ed se v Japonsk\u00e9m mo\u0159i a Toxopneustes roseus ve v\u00fdchodn\u00edm Tich\u00e9m oce\u00e1nu.<br \/> B\u011b\u017en\u00fd mo\u0159sk\u00fd je\u017eek Diadema setosum s dlouh\u00fdmi ostny se vyskytuje v indickotichomo\u0159sk\u00e9 oblasti a kolem Antil. Tento druh si sv\u00fdma nohama nab\u00edr\u00e1 chaluhy, mu\u0161le a obl\u00e1zky a pokr\u00fdv\u00e1 se jimi. To sice m\u016f\u017ee plnit \u00fa\u010del maskov\u00e1n\u00ed proti pred\u00e1tor\u016fm a chr\u00e1n\u011bn\u00ed se proti slunci, ale tak\u00e9 l\u00e1k\u00e1 pot\u00e1p\u011b\u010de k bli\u017e\u0161\u00edmu prohl\u00e9dnut\u00ed, co\u017e b\u00fdv\u00e1 p\u0159\u00ed\u010dinou mnoha zran\u011bn\u00ed.<\/p>\n<p style=\"text-align: justify;\"><strong>MO\u0158SK\u00c9 HV\u011aZDICE<\/strong><br \/> Ko\u017en\u00ed \u017el\u00e1zy t\u011bchto tvor\u016f produkuj\u00ed jed, kter\u00fd u lid\u00ed zp\u016fsobuje prudk\u00e9 z\u00e1n\u011btliv\u00e9 reakce. Pr\u016fvodn\u00edmi jevy jsou zrudnut\u00ed, znecitliv\u011bn\u00ed a otok posti\u017een\u00e9ho m\u00edsta, ale i zvracen\u00ed. V n\u011bkter\u00fdch &ndash; i kdy\u017e vz\u00e1cn\u00fdch &ndash; p\u0159\u00edpadech mohou zran\u011bn\u00ed zp\u016fsoben\u00e9 mo\u0159sk\u00fdmi hv\u011bzdicemi zap\u0159\u00ed\u010dinit i ochrnut\u00ed.<\/p>\n<p style=\"text-align: justify;\"><strong>MO\u0158\u0160T\u00cd JE\u017dCI<\/strong><br \/> Ostny mo\u0159sk\u00fdch je\u017ek\u016f sice nemohou zp\u016fsobit tak velk\u00e1 zran\u011bn\u00ed jako ostny rejnok\u016f, ale p\u0159esto se jedn\u00e1 o dlouhodob\u00e1 bolestiv\u00e1 posti\u017een\u00ed, pokud se neo\u0161et\u0159\u00ed a nel\u00e9\u010d\u00ed spr\u00e1vn\u00fdm zp\u016fsobem. P\u0159i zbavov\u00e1n\u00ed se ostn\u016f je t\u0159eba db\u00e1t na to, aby se odstranily i jejich zbytky\/\u00falomky, ostny jsou toti\u017e velmi k\u0159ehk\u00e9 a snadno se l\u00e1mou. I kdy\u017e se v\u0161ak poda\u0159\u00ed vyjmout z r\u00e1ny ve\u0161ker\u00e1 ciz\u00ed t\u011blesa a \u010d\u00e1ste\u010dky, z\u016fstane k\u016f\u017ee kolem posti\u017een\u00e9ho m\u00edsta nep\u0159irozen\u011b zabarven\u00e1, co\u017e p\u016fsob\u00ed tzv. &ldquo;tetovac\u00edm&rdquo; efektem.<br \/>&nbsp;<\/p>\n<p style=\"text-align: justify;\">V\u0161eobecn\u011b plat\u00ed, \u017ee jestli\u017ee neustoup\u00ed siln\u00e1 bolest a otok do 48 hodin, z\u016fstaly pravd\u011bpodobn\u011b v r\u00e1n\u011b n\u011bjak\u00e9 zbytky ostn\u016f. V takov\u00e9m p\u0159\u00edpad\u011b je pot\u0159eba vyhledat profesion\u00e1ln\u00ed pomoc. A jestli\u017ee v\u011bz\u00ed ostny v kloubech nebo v jejich bl\u00edzkosti, obzvl\u00e1\u0161t\u011b na ruce nebo na chodidle, stoj\u00ed za \u00favahu vyhledat profesion\u00e1ln\u00ed o\u0161et\u0159en\u00ed ihned po zran\u011bn\u00ed. I kdy\u017e t\u011blo \u010dasto vypud\u00ed \u00falomky samo od sebe, existuje mnoho p\u0159\u00edpad\u016f, kdy \u010d\u00e1sti ostn\u016f z\u016fstaly v r\u00e1n\u011b a tam ztvrdly (zkalcifikovaly), co\u017e pak p\u016fsobilo v kloubech a jejich bl\u00edzkosti zna\u010dn\u00e9 komplikace. <\/p>\n<p style=\"text-align: justify;\">Jsou zn\u00e1my i p\u0159\u00edpady, kdy n\u011bjac\u00ed &ldquo;odborn\u00edci&rdquo; doporu\u010dili zbytky ostn\u016f pod k\u016f\u017e\u00ed rozdrtit. O TO SE NIKDY NEPOKOU\u0160EJTE. Takov\u00fd postup m\u016f\u017ee m\u00edt za n\u00e1sledek velmi v\u00e1\u017en\u00e9 komplikace. Mohlo by se toti\u017e &ldquo;poda\u0159it&rdquo; zatla\u010dit tyto cizorod\u00e9 \u010d\u00e1ste\u010dky hloub\u011bji a poranit dal\u0161\u00ed \u010d\u00e1sti t\u011bla, nap\u0159. tepny, \u017e\u00edly, nervy a \u0161lachy (nemluv\u011b o tom, \u017ee takov\u00fd postup mus\u00ed b\u00fdt i velmi bolestiv\u00fd). Jestli\u017ee zran\u011bn\u00ed nen\u00ed natolik v\u00e1\u017en\u00e9, aby vy\u017eadovalo profesion\u00e1ln\u00ed o\u0161et\u0159en\u00ed a p\u00e9\u010di, pou\u017eijte shora doporu\u010den\u00fd \u010distic\u00ed postup.<\/p>\n<p style=\"text-align: justify;\"><strong>Rejnoci a m\u00e1\u010dky skvrnit\u00e9<\/strong><br \/> Rejnoci se vyskytuj\u00ed v tropick\u00fdch a tepl\u00fdch mo\u0159\u00edch. S oblibou s\u00eddl\u00ed v p\u00eds\u010dit\u00fdch mo\u0159sk\u00fdch m\u011bl\u010din\u00e1ch nebo v m\u011blk\u00fdch vod\u00e1ch u \u00fast\u00ed \u0159ek. Le\u017e\u00ed na p\u00edsku (nebo jsou do n\u011bj zavrtan\u00ed) a lze jim vid\u011bt jen o\u010di, \u017eabern\u00ed \u0161t\u011brbiny a ocas. Jejich bodav\u00fd trn je sou\u010d\u00e1st\u00ed ocasu. Samotn\u00fd trn je velmi tvrd\u00fd a po obou stran\u00e1ch opat\u0159en\u00fd ostr\u00fdmi zuby ohnut\u00fdmi sm\u011brem dozadu.<br \/> Na doln\u00ed stran\u011b trnu se nach\u00e1zej\u00ed hlubok\u00e9 \u017el\u00e1bky vypln\u011bn\u00e9 jedov\u00fdmi \u017el\u00e1zami. Cel\u00fd trn je pota\u017een kryc\u00ed pochvou, kter\u00e1 chr\u00e1n\u00ed bodavou \u010d\u00e1st.  <\/p>\n<p style=\"text-align: justify;\">K v\u011bt\u0161in\u011b zran\u011bn\u00ed doch\u00e1z\u00ed n\u00e1hodou, ne po c\u00edlen\u00e9m \u00fatoku. Ob\u011b\u0165 \u010dasto stoupne na nic netu\u0161\u00edc\u00edho rejnoka le\u017e\u00edc\u00edho v p\u00edsku a jeho obrann\u00fd pohyb zp\u016fsob\u00ed zran\u011bn\u00ed. Takov\u00e9 zran\u011bn\u00ed za\u010d\u00edn\u00e1 bodnut\u00edm, kdy\u017e trn proraz\u00ed k\u016f\u017ei, a pot\u00e9 doch\u00e1z\u00ed ke zv\u011bt\u0161en\u00ed r\u00e1ny, nebo\u0165 trn se vytahuje a jeho dozadu zak\u0159iven\u00e9 zuby pro\u0159ez\u00e1vaj\u00ed k\u016f\u017ei kolem p\u016fvodn\u00edho bodnut\u00ed.<br \/> B\u011bhem shora popsan\u00e9ho pohybu trnu dovnit\u0159 a ven se do r\u00e1ny vst\u0159ikuje jed. \u010c\u00e1sti ochrann\u00e9 pochvy v r\u00e1n\u011b z\u016fstanou, tak\u017ee se tam pak nach\u00e1zej\u00ed ciz\u00ed \u010d\u00e1ste\u010dky, jed a v\u00e1\u017en\u011b poran\u011bn\u00e1 tk\u00e1\u0148, nav\u00edc zde nevyhnuteln\u011b doch\u00e1z\u00ed k bakteri\u00e1ln\u00ed kontaminaci. N\u00e1sledkem je komplikovan\u00e9 zran\u011bn\u00ed vy\u017eaduj\u00edc\u00ed rozs\u00e1hlou l\u00e9\u010dbu s pom\u011brn\u011b dlouhou dobou pot\u0159ebnou pro \u00fapln\u00e9 vyl\u00e9\u010den\u00ed. Byla zaznamen\u00e1na i \u00famrt\u00ed, hlavn\u011b kdy\u017e trn pronikl do hrudi nebo do b\u0159icha, co\u017e se stalo d\u011btem, kter\u00e9 na tohoto \u017eivo\u010dicha spadly. <\/p>\n<p style=\"text-align: justify;\">P\u0159\u00edbuznou rejnoka je m\u00e1\u010dka skvrnit\u00e1, kter\u00e1 je rovn\u011b\u017e vyzbrojena velmi \u00fa\u010dinn\u00fdm obrann\u00fdm syst\u00e9mem. O ostnat\u00e9 m\u00e1\u010dce skvrnit\u00e9 (Squalus acanthias) se v\u00ed ji\u017e dlouho, \u017ee lidem zp\u016fsobuje zran\u011bn\u00ed. Dokonce se o n\u00ed zmi\u0148uje jedna \u0159eck\u00e1 b\u00e1se\u0148 z roku 200 na\u0161eho letopo\u010dtu: &ldquo;Ostnem z pichlav\u00e9ho krun\u00fd\u0159e vbodne m\u00e1\u010dka stra\u0161n\u00fd jed, co\u017e d\u011bl\u00e1 puch\u00fd\u0159e&rdquo;.<br \/> Tito tvorov\u00e9 s\u00eddl\u00ed v Severn\u00edm Atlantiku a v severn\u00ed \u010d\u00e1sti Tich\u00e9ho oce\u00e1nu. M\u00e1\u010dky maj\u00ed jeden osten na p\u0159edn\u00edm okraji ka\u017ed\u00e9 ze dvou h\u0159betn\u00edch ploutv\u00ed. Kdy\u017e osten pronikne poko\u017ekou, vst\u0159ikne se do r\u00e1ny jed z jedov\u00e9 \u017el\u00e1zy nach\u00e1zej\u00edc\u00ed se v horn\u00ed \u010d\u00e1sti ka\u017ed\u00e9ho ostnu.<\/p>\n<p style=\"text-align: justify;\"><strong>Chim\u00e9ry, sume\u010dkovit\u00ed a ostnatci<\/strong><br \/> Chim\u00e9ry (Chimaera) jsou skupinou ryb chrupav\u010dit\u00fdch. Maj\u00ed dv\u011b h\u0159betn\u00ed ploutve a v prvn\u00ed z nich se v p\u0159edn\u00edm okraji nach\u00e1z\u00ed ostr\u00fd trn. Z t\u00e9to prvn\u00ed ploutve se tak\u00e9 dopravuje jed. Chim\u00e9ry up\u0159ednost\u0148uj\u00ed chladn\u00e9 vody a vyskytuj\u00ed se od hladiny a\u017e do hloubky kolem 3 000 metr\u016f. Tito \u017eivo\u010dichov\u00e9 zp\u016fsobuj\u00ed velmi bolestiv\u00e1 bodnut\u00ed, p\u0159i\u010dem\u017e se bolest dostavuje okam\u017eit\u011b. Nejd\u0159\u00edve se intenzita bolesti po n\u011bjakou dobu stup\u0148uje, pot\u00e9 se pozvolna sn\u00ed\u017e\u00ed, ale p\u0159etrv\u00e1v\u00e1 po \u0159adu dn\u00ed. Oblast kolem r\u00e1ny znecitliv\u00ed, zmodr\u00e1 a je patrn\u00e1 siln\u00e1 z\u00e1n\u011btliv\u00e1 reakce. <\/p>\n<p style=\"text-align: justify;\">Sume\u010dkovit\u00fdch existuje mnoho druh\u016f, z nich\u017e v\u011bt\u0161ina jsou ryby sladkovodn\u00ed, jen n\u011bkolik druh\u016f \u017eije v mo\u0159i. Sume\u010dkovit\u00ed maj\u00ed jeden siln\u00fd a jako jehla ostr\u00fd trn um\u00edst\u011bn\u00fd na p\u0159edn\u00edm okraji h\u0159betn\u00ed a prsn\u00ed ploutve.<br \/> Trn je pokryt ochrannou pochvou, kter\u00e1 obsahuje jedov\u00e9 \u017el\u00e1zy. N\u011bkolik druh\u016f m\u00e1 na trnu zak\u0159iven\u00e9 zuby, kter\u00e9 r\u00e1nu zv\u011bt\u0161uj\u00ed pro\u0159ez\u00e1v\u00e1n\u00edm. T\u00edm se zesiluje vst\u0159eb\u00e1v\u00e1n\u00ed jedu a zvy\u0161uje pravd\u011bpodobnost infekce. Dva b\u011b\u017en\u00e9 sladkovodn\u00ed druhy \u017eij\u00edc\u00ed ve ve Spojen\u00fdch st\u00e1tech jsou ryba naz\u00fdvan\u00e1 prost\u011b &ldquo;sume\u010dek&rdquo; (Galeichths felis) a karolinsk\u00fd sume\u010dek zb\u011bsil\u00fd (Noturus furiosus). Mo\u0159sk\u00fd sume\u010dek (Bagre marinus) \u017eije u v\u00fdchodn\u00edho pob\u0159e\u017e\u00ed obou americk\u00fdch kontinent\u016f, od Nov\u00e9 Anglie a\u017e po Braz\u00edlii. <\/p>\n<p style=\"text-align: justify;\">Ostnatci jsou mal\u00e9 a p\u0159ita\u017eliv\u011b vypadaj\u00edc\u00ed mo\u0159sk\u00e9 ryby, kter\u00e9 jsou v\u0161ak dosti agresivn\u00ed a nav\u00edc jsou vybaveny velmi \u00fa\u010dinn\u00fdm jedov\u00fdm \u00fastroj\u00edm. Pro pot\u00e1p\u011b\u010de mohou p\u0159edstavovat skute\u010dn\u00e9 nebezpe\u010d\u00ed. Ostnatci se zavrt\u00e1vaj\u00ed do m\u011bkk\u00e9ho p\u00edsku a odtud vyr\u00e1\u017eej\u00ed k rychl\u00fdm \u00fatok\u016fm. Jejich h\u0159betn\u00ed trny obsahuj\u00ed jedov\u00e9 \u017el\u00e1zy produkuj\u00edc\u00ed jed s vlastnostmi podobn\u00fdmi neurotoxin\u016fm a hemotoxin\u016fm. <br \/> Bolest po bodnut\u00ed ostnatcem se dostavuje okam\u017eit\u011b a zesiluje a\u017e na hranici snesitelnosti. I bez o\u0161et\u0159en\u00ed v\u0161ak b\u011bhem 24 hodin zesl\u00e1bne, i kdy\u017e \u00fapln\u00e9 zotaven\u00ed m\u016f\u017ee trvat n\u011bkolik dn\u016f a\u017e m\u011bs\u00edc\u016f. Byly zaznamen\u00e1ny i velmi t\u011b\u017ek\u00e9 p\u0159\u00edpady a dokonce \u00famrt\u00ed.<\/p>\n<p style=\"text-align: justify;\"><strong>Rejnoci<\/strong><br \/> V roce 1608 p\u0159ist\u00e1l mo\u0159eplavec kapit\u00e1n John Smith se svou lod\u00ed v \u00fast\u00ed \u0159eky Rappahanock ve v\u00fdchodn\u00ed Virgini\u00ed a chystal se prozkoumat z\u00e1toku Chesapeake (Chesapeake Bay). Kdy\u017e \u010dekal na p\u0159\u00edliv, aby mohl odrazit od b\u0159ehu, rozhodl se ulovit n\u011bjak\u00e9 plat\u00fdse, a sice tak, \u017ee nam\u00edsto harpuny pou\u017eije me\u010d. Pod vodou spat\u0159il n\u011bco velk\u00e9ho a ploch\u00e9ho, tak to &ndash; i kdy\u017e nev\u011bd\u011bl, o co jde &ndash; me\u010dem probodl a vyhodil z vody. <br \/> Kdy\u017e z me\u010de stahoval uloven\u00e9ho rejnoka, dostal do z\u00e1p\u011bst\u00ed bodnut\u00ed z ocasn\u00edho trnu. Jed m\u011bl na Smithe takov\u00fd \u00fa\u010dinek, \u017ee byl p\u0159esv\u011bd\u010den, \u017ee toto zran\u011bn\u00ed nep\u0159e\u017eije. Za\u010daly p\u0159\u00edpravy na jeho skon, dokonce mu n\u00e1mo\u0159n\u00edci ji\u017e vykopali hrob. O\u0161et\u0159en\u00ed hork\u00fdm olejem v\u0161ak p\u0159ineslo zna\u010dnou \u00falevu a posl\u00e9ze si kapit\u00e1n nechal rejnoka p\u0159ipravit k ve\u010de\u0159i. Od t\u00e9 doby se m\u00edsto t\u00e9to nehody naz\u00fdv\u00e1 Ostrov rejnok\u016f (Stingray Isle). <\/p>\n<p style=\"text-align: justify;\">Kapit\u00e1n Smith nebyl prvn\u00edm ani posledn\u00ed \u010dlov\u011bkem, kter\u00e9ho v Severn\u00ed Americe bodnul rejnok. Odhady se pohybuj\u00ed na 1500 zran\u011bn\u00ed ro\u010dn\u011b jen ve Spojen\u00fdch st\u00e1tech.<br \/> Po\u010detn\u00e1 skupina \u017eabohlavcovit\u00fdch (Batrachoididae) je tvo\u0159ena mal\u00fdmi rybkami plovouc\u00edmi u dna ve v\u011bt\u0161in\u011b tepl\u00fdch pob\u0159e\u017en\u00edch oblast\u00ed cel\u00e9ho sv\u011bta. Jsou velmi o\u0161kliv\u00e9 (snad s v\u00fdjimkou pro jin\u00e9 \u017eabohlavcovit\u00e9), maj\u00ed \u0161irokou sra\u017eenou hlavu a velk\u00fd \u00fastn\u00ed otvor. Vlastn\u00ed dva h\u0159betn\u00ed trny s jedov\u00fdmi \u017el\u00e1zami a dal\u0161\u00ed trn je um\u00edst\u011bn na sk\u0159el\u00edch. \u010cast\u00fdmi ob\u011btmi bodnut\u00ed se st\u00e1vaj\u00ed ryb\u00e1\u0159i, kdy\u017e se sna\u017e\u00ed sejmout rybu z h\u00e1\u010dku lanka ryb\u00e1\u0159sk\u00e9 udice.<br \/>&nbsp;<\/p>\n<p style=\"text-align: justify;\">Bolest je podobn\u00e1 t\u00e9, kterou zp\u016fsobuje ropu\u0161nice, a dostavuje se rychle s pr\u016fvodn\u00edm z\u010derven\u00e1n\u00edm, otokem a p\u00e1len\u00edm. Nejsou zaznamen\u00e1na \u017e\u00e1dn\u00e1 n\u00e1sledn\u00e1 \u00famrt\u00ed a p\u0159\u00edznaky miz\u00ed po n\u011bkolika dnech. Bodlokovit\u00ed (Acanthuridae), kter\u00fdm se rovn\u011b\u017e \u0159\u00edk\u00e1 ryby-chirurgov\u00e9, maj\u00ed po stran\u00e1ch trny podobn\u00e9 skalpel\u016fm. C\u00edt\u00ed-li se tato ryba v ohro\u017een\u00ed, vysune trny a \u0161vih\u00e1 ocasem. Kontakt s trnem m\u00edv\u00e1 za n\u00e1sledek hlubokou a bolestivou \u0159eznou r\u00e1nu. Trn v\u0161ak neobsahuje \u017e\u00e1dn\u00fd jed.&nbsp; Existuj\u00ed i dal\u0161\u00ed druhy ryb s jedovat\u00fdmi trny, kter\u00e9 dok\u00e1\u017e\u00ed zp\u016fsobit pot\u00e1p\u011b\u010d\u016fm nep\u0159\u00edjemn\u00e1 zran\u011bn\u00ed. Pat\u0159\u00ed k nim letuchovit\u00ed (Dactylopterus volitans), kohouti mo\u0159\u0161t\u00ed (Trigla lyra), dr\u00e1\u010data (Callionumus lyra); kr\u00e1l\u00ed\u010dkovci \u010d\u00e1rkovan\u00ed (Siganus doliatus), kalo\u017eroutovit\u00ed (Scatophagidae sp.), nebehledkovit\u00ed (Uranoscopus sp.) a kranasovit\u00ed (Carangidae sp.).<\/p>\n<p style=\"text-align: justify;\"><strong>Ropu\u0161nice<\/strong><br \/> Ropu\u0161nice (Scorpaenidae) se nach\u00e1zej\u00ed po cel\u00e9m sv\u011bt\u011b v tropick\u00fdch a m\u00edrn\u00fdch p\u00e1smech. D\u011bl\u00ed se na t\u0159i hlavn\u00ed skupiny:<\/p>\n<ul>\n<li style=\"text-align: justify;\">perut\u00fdny (Pterois);<\/li>\n<li style=\"text-align: justify;\">ropu\u0161nice skvrnit\u00e9 (Scorpaena); a<\/li>\n<li style=\"text-align: justify;\">odrance (Synanceia).<\/li>\n<\/ul>\n<p style=\"text-align: justify;\">Perut\u00fdny, zn\u00e1m\u00e9 rovn\u011b\u017e pod anglick\u00fdmi jm\u00e9ny turkeyfish nebo lionfish, jsou kr\u00e1sn\u00e9 a ozdobn\u00e9 kor\u00e1lov\u00e9 ryby, kter\u00e9 \u017eij\u00ed v m\u011blk\u00e9 vod\u011b nad r\u016fzn\u00fdmi prol\u00e1klinami v kor\u00e1lov\u00fdch \u00fatesech nebo spo\u010d\u00edvaj\u00ed na n\u011bjak\u00e9m pevn\u00e9m p\u0159edm\u011btu. Jsou neboj\u00e1cn\u00e9 a kdy\u017e se setkaj\u00ed se stejn\u011b neboj\u00e1cn\u00fdm pot\u00e1p\u011b\u010dem, kter\u00fd se jich dotkne, b\u00fdv\u00e1 v\u00fdsledkem mimo\u0159\u00e1dn\u011b bolestiv\u00fd z\u00e1\u017eitek. Ropu\u0161nice (Scorpaena) a odranci (Synaceia) p\u0159eb\u00fdvaj\u00ed v m\u011blk\u00fdch vod\u00e1ch a zdr\u017euj\u00ed se u p\u00edse\u010dn\u00e9ho dna, na skal\u00e1ch nebo na kor\u00e1lov\u00fdch \u00fatesech. Kv\u016fli maskovac\u00edmu zbarven\u00ed je velmi nesnadn\u00e9 je spat\u0159it a rozpoznat, proto jsou st\u0159ety s nimi pom\u011brn\u011b \u010dast\u00e9.<br \/>&nbsp;<\/p>\n<p style=\"text-align: justify;\">Trny ryb t\u011bchto t\u0159\u00ed skupin se sice r\u016fzn\u00ed, ale v\u0161echny vst\u0159ikuj\u00ed jed. Nejnebezpe\u010dn\u011bj\u0161\u00ed jsou odranci, nebo\u0165 jejich trny jsou velmi siln\u00e9 a dok\u00e1\u017e\u00ed probodnout i botu a dopravit do m\u00edsta v bodnut\u00ed prudk\u00fd jed. Na bodnut\u00ed odrancem jsou hl\u00e1\u0161en\u00e1 i \u00famrt\u00ed.<br \/> S v\u00fdjimkou bodnut\u00ed od odranc\u016f jsou p\u0159\u00edznaky po bodnut\u00ed v\u0161emi druhy ropu\u0161nic v\u00edcem\u00e9n\u011b stejn\u00e9. I kdy\u017e b\u00fdv\u00e1 ur\u010den\u00ed konkr\u00e9tn\u00edho druhu (&ldquo;\u00fato\u010dn\u00edka&rdquo;) t\u00e9m\u011b\u0159 nemo\u017en\u00e9, p\u0159\u00edznaky a n\u00e1sledky bodnut\u00ed se od sebe moc neli\u0161\u00ed. Jsou to okam\u017eit\u00e1 bolest, kter\u00e1 s\u00edl\u00ed, a namodral\u00e1 r\u00e1na, kter\u00e1 z\u016fst\u00e1v\u00e1 stejn\u00e1 po n\u011bkolik hodin a pot\u00e9 za\u010d\u00edn\u00e1 ustupovat. Bodnut\u00ed odrancem zp\u016fsobuje t\u00e9m\u011b\u0159 nesnesitelnou bolest a n\u011bkdy dokonce dojde a\u017e k ochrnut\u00ed kon\u010detiny.<br \/> D\u00e1le se mohou dostavit p\u0159\u00edznaky srde\u010dn\u00edho selh\u00e1n\u00ed, blouzn\u011bn\u00ed, mrtvice a pot\u00ed\u017ee s d\u00fdch\u00e1n\u00edm. I kdy\u017e ne p\u0159\u00edli\u0161 \u010dasto, p\u0159esto je n\u011bkdy n\u00e1sledkem bodnut\u00ed odrancem i smrt.<\/p>\n<p style=\"text-align: justify;\"><strong>BODNUT\u00cd ODRANCEM<\/strong><br \/> Ke klinick\u00fdm p\u0159\u00edznak\u016fm bodnut\u00ed odrancem pat\u0159\u00ed:<\/p>\n<ol>\n<li style=\"text-align: justify;\">m\u00edstn\u00ed bolest zvy\u0161uj\u00edc\u00ed se po n\u011bkolik minut a ustupuj\u00edc\u00ed a\u017e po n\u011bkolika hodin\u00e1ch;<\/li>\n<li style=\"text-align: justify;\">jedna nebo dv\u011b bodn\u00e9 r\u00e1ny;<\/li>\n<li style=\"text-align: justify;\">necitliv\u00e1 oblast m\u00edsta bodnut\u00ed;<\/li>\n<li style=\"text-align: justify;\">zan\u00edcen\u00e9 a namodral\u00e9 m\u00edsto bodnut\u00ed;<\/li>\n<li style=\"text-align: justify;\">velmi citliv\u00e9 okol\u00ed r\u00e1ny, nav\u00edc bled\u00e9 a otekl\u00e9;<\/li>\n<li style=\"text-align: justify;\">citliv\u00e9 a\u017e bolestiv\u00e9 m\u00edstn\u00ed lymfatick\u00e9 uzliny;<\/li>\n<li style=\"text-align: justify;\">p\u0159\u00edznaky mohou b\u00fdt n\u011bkdy velmi prudk\u00e9 a vyvol\u00e1vaj\u00ed stav velk\u00e9 \u00fazkosti;<\/li>\n<li style=\"text-align: justify;\">\u010dasto se dostavuje pocit nevolnosti, nauzea, zvracen\u00ed, pocen\u00ed, blouzn\u011bn\u00ed;<\/li>\n<li style=\"text-align: justify;\">zv\u00fd\u0161en\u00e1 teplota;<\/li>\n<li style=\"text-align: justify;\">kardiovaskul\u00e1rn\u00ed \u0161ok;<\/li>\n<li style=\"text-align: justify;\">d\u00fdchac\u00ed pot\u00ed\u017ee;<\/li>\n<li style=\"text-align: justify;\">m\u016f\u017ee nastat smrt.<\/li>\n<\/ol>\n<p style=\"text-align: justify;\"><strong>Vyl\u00e9\u010den\u00ed m\u016f\u017ee trvat mnoho m\u011bs\u00edc\u016f.<\/strong><br \/> Na bodnut\u00ed odrancem existuje protijed od Commonwealth Serum Laboratories v Melbourne, Australia CSL Limited: www.CSL.com.au<\/p>\n<p style=\"text-align: justify;\"> <strong>O\u0161et\u0159en\u00ed a l\u00e9\u010dba zran\u011bn\u00ed<\/strong> <br \/> R\u00e1ny zp\u016fsoben\u00e9 r\u016fzn\u00fdmi \u017eivo\u010dichy s jedovat\u00fdmi trny se vyzna\u010duj\u00ed n\u011bkter\u00fdmi spole\u010dn\u00fdmi rysy. Zpravidla se jedn\u00e1 o bodn\u00e9 r\u00e1ny roz\u0161\u00ed\u0159en\u00e9 n\u00e1sledn\u00fdm pro\u0159ez\u00e1n\u00edm nebo natr\u017een\u00edm, p\u0159i\u010dem\u017e uvnit\u0159 z\u016fst\u00e1vaj\u00ed ciz\u00ed \u010d\u00e1ste\u010dky, jed a bakteri\u00e1ln\u00ed zne\u010di\u0161t\u011bn\u00ed. <br \/> Po \u00favodn\u00edm vy\u0161et\u0159en\u00ed a stabilizaci zran\u011bn\u00e9 osoby je pot\u0159eba postupovat podle n\u00e1sleduj\u00edc\u00edch z\u00e1kladn\u00edch pravidel:<\/p>\n<ul>\n<li style=\"text-align: justify;\">co nejrychleji zbavit poran\u011bn\u00e9ho \u010dlov\u011bka bolesti (nebo ji alespo\u0148 zm\u00edrnit) a<\/li>\n<li style=\"text-align: justify;\">vy\u010distit r\u00e1nu od ve\u0161ker\u00e9ho ciz\u00edho materi\u00e1lu pou\u017eit\u00edm &ndash; pokud je to mo\u017en\u00e9 &ndash; steriln\u00edch pom\u016fcek.<\/li>\n<\/ul>\n<p style=\"text-align: justify;\">Jestli\u017ee v r\u00e1n\u011b z\u016fstanou n\u011bjak\u00e9 ciz\u00ed \u010d\u00e1ste\u010dky, bude prob\u00edhat l\u00e9\u010dba d\u00e9le nebo hojen\u00ed v\u016fbec neza\u010dne.<br \/> V\u00fdplachem r\u00e1ny se odstran\u00ed jed i \u00falomky ochrann\u00e9 pochvy, sliz i p\u00edsek. Mnoh\u00e9 druhy jedu jsou citliv\u00e9 na teplo (bu\u010f se teplem zni\u010d\u00ed nebo zm\u011bn\u00ed), proto zkuste poran\u011bn\u00e9 m\u00edsto pono\u0159it do hork\u00e9 vody (alespo\u0148 45 &deg;C) &ndash; nebo do tak hork\u00e9, jakou lze sn\u00e9st &ndash; po dobu 30-90 minut. Nen\u00ed-li hork\u00e1 voda k dispozici (nebo zran\u011bn\u00ed na nevhodn\u00e9m m\u00edst\u011b), pou\u017eijte obklady nebo n\u011bjak\u00e9 hork\u00e9 podu\u0161ky. Postup p\u0159i o\u0161et\u0159en\u00ed t\u011bchto zran\u011bn\u00ed lze shrnout do n\u00e1sleduj\u00edc\u00edch bod\u016f:<\/p>\n<ol>\n<li style=\"text-align: justify;\">poran\u011bn\u00e1 oblast se um\u00edst\u00ed do zv\u00fd\u0161en\u00e9 polohy;<\/li>\n<li style=\"text-align: justify;\">r\u00e1na se pono\u0159\u00ed do hork\u00e9 vody na dobu 30-90 minut nebo do doby, ne\u017e ustoup\u00ed bolest a ji\u017e se nevrac\u00ed;<\/li>\n<li style=\"text-align: justify;\">pro \u00falevu bolesti se nepou\u017e\u00edv\u00e1 epinefrin (adrenalin);<\/li>\n<li style=\"text-align: justify;\">analgetika nebo narkotika jsou zapot\u0159eb\u00ed pouze z\u0159\u00eddka;<\/li>\n<li style=\"text-align: justify;\">m\u016f\u017ee b\u00fdt nutn\u00e1 resuscitace;<\/li>\n<li style=\"text-align: justify;\">r\u00e1na se o\u0161et\u0159uje b\u011b\u017en\u00fdm zp\u016fsobem, n\u011bkdy je pot\u0159eba nasadit antibiotika;<\/li>\n<li style=\"text-align: justify;\">z r\u00e1ny a jej\u00edho okol\u00ed se mus\u00ed odstranit ciz\u00ed t\u011blesa.<\/li>\n<\/ol>\n<p style=\"text-align: justify;\">N\u011bkter\u00e9 r\u00e1ny b\u00fdvaj\u00ed z\u00e1va\u017en\u011bj\u0161\u00ed bu\u010f kv\u016fli velikosti (od rejnoka), nebo \u00fa\u010dinkem jedu (od odrance). R\u00e1na od rejnoka m\u016f\u017ee vy\u017eadovat l\u00e9ka\u0159sk\u00e9 vy\u0161et\u0159en\u00ed a odborn\u00e9 odstran\u011bn\u00ed ciz\u00edch t\u011bles i po\u0161kozen\u00e9 tk\u00e1n\u011b. V p\u0159\u00edpad\u011b zran\u011bn\u00ed odrancem b\u00fdv\u00e1 zapot\u0159eb\u00ed protijedu, co\u017e m\u016f\u017ee b\u00fdt nebezpe\u010dn\u00e9 samo o sob\u011b.<br \/> Ob\u011bti shora uveden\u00fdch zran\u011bn\u00ed by m\u011bly b\u00fdt o\u0161et\u0159eny v m\u00edstn\u00edm zdravotn\u00edm za\u0159\u00edzen\u00ed, ale jeho vybavenost a odborn\u00e1 p\u0159ipravenost na podobn\u00e9 p\u0159\u00edpady se bude li\u0161it podle p\u0159\u00edslu\u0161n\u00e9 pot\u00e1p\u011b\u010dsk\u00e9 oblasti. DAN m\u016f\u017ee poslou\u017eit radou, jak v dan\u00e9m okam\u017eiku postupovat, a tak\u00e9 odkazem na vhodn\u00e1 zdravotn\u00ed st\u0159ediska. (\u010clenov\u00e9 DAN mohou b\u00fdt zdarma evakuov\u00e1ni, jestli\u017ee to zdravotn\u00ed stav vy\u017eaduje.)<\/p>\n<p style=\"text-align: justify;\"><strong>Prevence<\/strong><br \/> Nejlep\u0161\u00ed prevenc\u00ed proti zran\u011bn\u00edm tohoto druhu je vyh\u00fdbat se kontakt\u016fm s nebezpe\u010dn\u00fdmi \u017eivo\u010dichy. To se se sice lehko \u0159ekne, ale tak jednoduch\u00e9 to nen\u00ed, proto\u017ee pot\u00e1p\u011b\u010d \u010dasto z\u00e1pol\u00ed se \u0161patnou viditelnost\u00ed, siln\u00fdmi proudy, mal\u00fdm prostorem a jin\u00fdmi omezen\u00edmi typick\u00fdmi pro danou oblast.<br \/> Pot\u00e1p\u011b\u010di by se nikdy nem\u011bli pokou\u0161et manipulovat, dr\u00e1\u017edit, krmit ani provokovat \u017e\u00e1dn\u00e9ho mo\u0159sk\u00e9ho \u017eivo\u010dicha. P\u00e1tr\u00e1n\u00ed v n\u011bjak\u00e9 \u0161t\u011brbin\u011b nebo rozsedlin\u011b rukou je jedn\u00edm z nejjist\u011bj\u0161\u00edch zp\u016fsob\u016f, jak si p\u0159ivodit zran\u011bn\u00ed od skryt\u00e9ho \u017eivo\u010dicha, kter\u00fd tam s\u00eddl\u00ed a pouze se br\u00e1n\u00ed.<br \/>&nbsp;<\/p>\n<p style=\"text-align: justify;\">Nedovolte, aby v\u00e1s proud zanesl a p\u0159itla\u010dil na n\u011bjak\u00fd pevn\u00fd p\u0159edm\u011bt, kter\u00fd m\u016f\u017ee b\u00fdt pokryt r\u016fzn\u00fdmi \u017eivo\u010dichy. Velmi d\u016fle\u017eit\u00fd je ochrann\u00fd od\u011bv. Je\u0161t\u011b p\u0159ed ponory se pokuste zjistit\/p\u0159edv\u00eddat, jac\u00ed \u017eivo\u010dichov\u00e9 se mohou vyskytovat v oblasti va\u0161eho pl\u00e1novan\u00e9ho pot\u00e1p\u011bn\u00ed, a seznamte se s jejich charakteristick\u00fdmi rysy i s typick\u00fdmi m\u00edsty, kde se vyskytuj\u00ed a skr\u00fdvaj\u00ed.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Mo\u0159e je pln\u00e9 \u00fa\u017easn\u00fdch tvor\u016f, i kdy\u017e jejich popis b\u00fdv\u00e1 v\u011bt\u0161inou v\u00fdsledkem p\u0159\u00edli\u0161 bujn\u00e9 fantazie. N\u011bkte\u0159\u00ed jsou tak velc\u00ed, \u017ee vyvol\u00e1vaj\u00ed hr\u016fzu, a p\u0159itom se&#8230;<\/p>\n","protected":false},"author":1,"featured_media":11373941,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[384],"tags":[],"authors":[],"class_list":["post-11385540","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-clanky"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v24.2 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>OSTNY A TRNY! - Alert Diver<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/alertdiver.eu\/cs_CZ\/clanky\/ostny-a-trny\/\" \/>\n<meta property=\"og:locale\" content=\"cs_CZ\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"OSTNY A TRNY! - Alert Diver\" \/>\n<meta property=\"og:description\" content=\"Mo\u0159e je pln\u00e9 \u00fa\u017easn\u00fdch tvor\u016f, i kdy\u017e jejich popis b\u00fdv\u00e1 v\u011bt\u0161inou v\u00fdsledkem p\u0159\u00edli\u0161 bujn\u00e9 fantazie. 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