{"id":20768,"date":"2013-11-09T19:54:10","date_gmt":"2013-11-09T18:54:10","guid":{"rendered":"https:\/\/ocasapiens-dweb.blogautore.repubblica.it\/?p=20768"},"modified":"2021-09-28T15:49:54","modified_gmt":"2021-09-28T13:49:54","slug":"dominatrix","status":"publish","type":"post","link":"https:\/\/archivio.ocasapiens.org\/index.php\/2013\/11\/09\/dominatrix\/","title":{"rendered":"Dominatrix"},"content":{"rendered":"<p>Il<a href=\"http:\/\/rabett.blogspot.it\/2013\/11\/the-better-tasting-jellyfish-appetizer.html\" target=\"_blank\" rel=\"noopener\"><strong> lagomorfo<\/strong><\/a> cita incidenti causati dalle meduse:<\/p>\n<p><em><span style=\"font-family: Georgia, serif; font-size: 15px; line-height: 19.421875px;\">the ecosystem processes that control jellyfish populations are out of whack. Predators that eat jellyfish are being \u201cfished down\u201d \u2013 humans are being forced to consume ocean protein farther and farther down the food chain. We can see increasing <\/span><a href=\"http:\/\/earthobservatory.nasa.gov\/IOTD\/view.php?id=79796\">indications from space<\/a><span style=\"font-family: Georgia, serif; font-size: 15px; line-height: 19.421875px;\"> &#8211; DMSP and Suomi NPP <\/span><a href=\"http:\/\/earthobservatory.nasa.gov\/Features\/NightLights\/\">photographs show vast armadas<\/a><span style=\"font-family: Georgia, serif; font-size: 15px; line-height: 19.421875px;\"> of fishing boats using lights to attract squid to nets. Just a generation ago these fleets were fishing for higher value fish but those fish are mostly gone now. What will the catch be when the squid are gone? Will it have to be jellyfish if the trend continues unabated? (Whether jellyfish have sufficient protein per unit area is another question) <\/span><\/em><\/p>\n<p><span style=\"font-family: Georgia, serif; font-size: 15px; line-height: 19.421875px;\">Chiudono centrali nucleari, <a href=\"http:\/\/www.nytimes.com\/2013\/10\/02\/world\/europe\/jellyfish-invasion-paralyzes-swedish-reactor.html?_r=0\" target=\"_blank\" rel=\"noopener\"><strong>ultima<\/strong><\/a> quella svedese di Oskarhamm sul Baltico, distruggono allevamenti ittici, fanno <a href=\"http:\/\/www.theguardian.com\/environment\/2013\/jun\/03\/jellyfish-surge-mediterranean-environment-tourists\" target=\"_blank\" rel=\"noopener\"><strong>scappare i turisti<\/strong><\/a> &#8211; ma gli italiani sarebbero abituati e farebbero il bagno lo stesso, stando a<a href=\"http:\/\/www.jellywatch.org\/sightings_list\" target=\"_blank\" rel=\"noopener\"> Jellywatch<\/a>. <\/span><\/p>\n<p style=\"text-align: center;\"><em><span style=\"font-family: Georgia, serif; font-size: 15px; line-height: 19.421875px;\"><img decoding=\"async\" class=\"aligncenter\" src=\"http:\/\/30.media.tumblr.com\/tumblr_lbsbq49LoF1qz7tiao1_500.jpg\" alt=\"\" \/><\/span><\/em><\/p>\n<p><span style=\"font-family: Georgia, serif; font-size: 15px; line-height: 19.421875px;\">La proliferazione &#8211; delle cubomeduse soprattutto &#8211; \u00e8 una conseguenza della pesca industriale che ne ha eliminato i predatori e i rivali come le acciughe che contendevano loro lo stesso cibo; dell&#8217;inquinamento costiero; dell&#8217;acidificazione e del riscaldamento degli oceani ecc., ma<\/span><span style=\"font-family: Georgia, serif; font-size: 15px; line-height: 19.421875px;\"> anche di una fitness eccezionale.<\/span><\/p>\n<p><span style=\"font-family: Georgia, serif; font-size: 15px; line-height: 19.421875px;\">Le <em><a href=\"http:\/\/en.wikipedia.org\/wiki\/Mnemiopsis\" target=\"_blank\" rel=\"noopener\">Mnemiopsis leydii<\/a><\/em> &#8211; che avevano invaso il Mar Nero sterminandone gli storioni &#8211; disperdono 10 mila uova al giorno da quando compiono due settimane e se si tagliano a pezzettini ognuno riforma un organismo adulto in tre giorni appena. \u00a0<\/span><\/p>\n<p><span style=\"font-family: Georgia, serif; font-size: 15px; line-height: 19.421875px;\"><strong>Aggiunta 13\/11<\/strong>: ho sbagliato, accusa ingiusta, non sono meduse&#8230; &#8211; L<\/span><span style=\"font-family: Georgia, serif; font-size: 15px; line-height: 19.421875px;\">e <\/span><em>Turritopsis dohrnii <\/em><span style=\"font-family: Georgia, serif; font-size: 15px; line-height: 19.421875px;\">muoiono nel senso che si disintegrano, ma cellule ancora vitali si aggregano per formare un polipo, il primo stadio, e in una settimana riformano un individuo. Si riproducono in tutti i modi che si riescono ad immaginare, alcune dispongono di tre o quattro metodi e li usano in alternanza, a seconda delle circostanze&#8230;<\/span><\/p>\n<p><span style=\"font-family: Georgia, serif; font-size: 15px; line-height: 19.421875px;\">In mezzo miliardo di anni le altre specie marine si sono organizzate, formando ecosistemi che le tengono a bada, ma li abbiamo depredati e quelle se ne approfittano.<\/span><\/p>\n<p><span style=\"font-family: Georgia, serif; font-size: 15px; line-height: 19.421875px;\">In<em> <a href=\"http:\/\/lisagershwin.com\/stung.htm\" target=\"_blank\" rel=\"noopener\"><strong>Stung!<\/strong><\/a> On jellyfish blooms and the future of the oceans <\/em>(foto stupende) Lisa-ann Gershwin \u00a0la biologa del <a href=\"http:\/\/www.barrierreefaustralia.com\/the-great-barrier-reef\/irukandji.htm\" target=\"_blank\" rel=\"noopener\"><strong>CSIRO<\/strong><\/a> specializzata in meduse velenose (<a href=\"http:\/\/www.stingeradvisor.com\/\" target=\"_blank\" rel=\"noopener\"><strong>stinger<\/strong><\/a>) come le minuscole\u00a0<a href=\"http:\/\/en.wikipedia.org\/wiki\/Irukandji_jellyfish\" target=\"_blank\" rel=\"noopener\"><strong>Irukandji<\/strong><\/a> ormai arrivate dal Queensland nel Mar Rosso &#8211; racconta storie quasi incredibili. <\/span><br \/>\n<span style=\"font-family: Georgia, serif; font-size: 15px; line-height: 19.421875px;\">Meduse che ribaltano un megapeschereccio giapponese quando le gru tentano di sollevare una rete che ne \u00e8 piena; che fermano la portaerei nucleare <a href=\"http:\/\/ronaldreagandivision.org\/wp-content\/uploads\/2012\/04\/081125-n-5961c-067.jpg\" target=\"_blank\" rel=\"noopener\">USS <em><strong>Ronald Reagan<\/strong><\/em><\/a><em>, <\/em>che <\/span><span style=\"font-family: Georgia, serif; font-size: 15px; line-height: 19.421875px;\">costruiscono un muro di muco lungo decine di chilometri e profondo centinaia di metri&#8230;<\/span><\/p>\n<p><span style=\"font-family: Georgia, serif; font-size: 15px; line-height: 19.421875px;\"><strong>Aggiunto<\/strong><\/span><br \/>\n<span style=\"font-family: Georgia, serif; font-size: 15px; line-height: 19.421875px;\">Sono anche le nuotatrici pi\u00f9 efficienti in assoluto, scrivono <a href=\"http:\/\/www.pnas.org\/content\/110\/44\/17904\" target=\"_blank\" rel=\"noopener\"><strong>Brad Gemmell et al.<\/strong> <\/a>sui PNAS (grassetto e link miei):<\/span><\/p>\n<p><em>We show that jellyfish exhibit a unique mechanism of <strong>passive energy recapture<\/strong>, which is exploited to allow them to travel 30% further each swimming cycle, thereby reducing metabolic energy demand by swimming muscles. By accounting for large interspecific differences in net metabolic rates, we demonstrate, contrary to prevailing views, that the jellyfish (<a href=\"http:\/\/it.wikipedia.org\/wiki\/Aurelia_aurita\" target=\"_blank\" rel=\"noopener\"><strong>Aurelia aurita<\/strong><\/a>) is <strong>one of the most energetically efficient propulsors on the planet<\/strong>&#8230;<\/em><\/p>\n<p><span style=\"font-family: Georgia, serif; font-size: 15px; line-height: 19.421875px;\"><a href=\"http:\/\/qz.com\/133251\/jellyfish-are-taking-over-the-seas-and-it-might-be-too-late-to-stop-them\/\" target=\"_blank\" rel=\"noopener\"><strong>Inarrestabili<\/strong><\/a>, se non arriva una specie rivale che ne frena il boom demografico, com&#8217;\u00e8 successo\u00a0<a href=\"http:\/\/www.sciencemag.org\/content\/297\/5586\/1482\" target=\"_blank\" rel=\"noopener\">nel Mar Nero<\/a> nel 2000-2002, anche se troppo tardi per gli storioni e l&#8217;economia delle citt\u00e0 costiere in tre paesi. <\/span><span style=\"font-family: Georgia, serif; font-size: 15px; line-height: 19.421875px;\">Nella sua <\/span><a href=\"http:\/\/www.nybooks.com\/articles\/archives\/2013\/sep\/26\/jellyfish-theyre-taking-over\/\" target=\"_blank\" rel=\"noopener\"><strong>recensione<\/strong><\/a><span style=\"font-family: Georgia, serif; font-size: 15px; line-height: 19.421875px;\"> sulla <\/span><em>NY Review of Books<\/em><span style=\"font-family: Georgia, serif; font-size: 15px; line-height: 19.421875px;\">, Tim Flannery faceva una battutaccia, &#8220;O pungiglione, dov&#8217;\u00e8 la tua morte?&#8221;, prima di citarne la fine: <\/span><br \/>\n<span style=\"font-family: Georgia, serif; font-size: 15px; line-height: 19.421875px;\"><em>I now sincerely believe that it is only a matter of time before the oceans as we know them and need them to be become very different places indeed. No coral reefs teeming with life. No more might whales or wobbling penguins. No more lobsters or oysters. Sushi without fish. (&#8230;)<\/em><\/span><br \/>\n<span style=\"font-family: Georgia, serif; font-size: 15px; line-height: 19.421875px;\"><em>Adapt.<\/em><\/span><br \/>\n<span style=\"font-family: Georgia, serif; font-size: 15px; line-height: 19.421875px;\">Ma si adattano anche loro, quelle del <a href=\"http:\/\/en.wikipedia.org\/wiki\/Jellyfish_Lake\" target=\"_blank\" rel=\"noopener\">lago di Palau<\/a> hanno perso il pungiglione. <\/span><\/p>\n<p style=\"text-align: center;\"><span style=\"font-family: Georgia, serif; font-size: 15px; line-height: 19.421875px;\">*<\/span><\/p>\n<p><span style=\"font-family: Georgia, serif; font-size: 15px; line-height: 19.421875px;\">Il titolo del post viene dalla <a href=\"http:\/\/www.nature.com\/nature\/journal\/v497\/n7449\/full\/497315a.html\" target=\"_blank\" rel=\"noopener\"><strong>segnalazione<\/strong><\/a> di\u00a0<em>Natur<\/em><\/span><\/p>\n<p><em>As reams of evidence reveal, human changes to ocean ecosystems are producing perfect conditions for jelly-dominated seas<\/em><\/p>\n<p style=\"text-align: left;\">Nella foto sopra, una Cassiopea mediterranea &#8211; detta\u00a0<a href=\"http:\/\/en.wikipedia.org\/wiki\/Cotylorhiza_tuberculata\" target=\"_blank\" rel=\"noopener\"><strong>uovo al tegame<\/strong><\/a> in inglese &#8211; molto abbondante nel Sud Italia questa primavera. Le condizioni erano &#8220;perfette&#8221;, almeno per quelli di Lecce che <a href=\"http:\/\/www.mdpi.com\/1660-3397\/11\/5\/1728\" target=\"_blank\" rel=\"noopener\"><strong>fanno ricerca<\/strong><\/a> sulle propriet\u00e0 terapeutiche di alcune sue molecole.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Il lagomorfo cita incidenti causati dalle meduse: the ecosystem processes that control jellyfish populations are out of whack. Predators that eat jellyfish are being \u201cfished down\u201d \u2013 humans are being forced to consume ocean protein farther and farther down the food chain. We can see increasing indications from space &#8211; DMSP and Suomi NPP photographs&hellip; <a class=\"more-link\" href=\"https:\/\/archivio.ocasapiens.org\/index.php\/2013\/11\/09\/dominatrix\/\">Continua a leggere <span class=\"screen-reader-text\">Dominatrix<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[2,3,10,19],"tags":[138,4381],"class_list":["post-20768","post","type-post","status-publish","format-standard","hentry","category-altri-animali","category-ambiente","category-clima","category-matematica","tag-acidificazione-degli-oceani","tag-meduse","entry"],"_links":{"self":[{"href":"https:\/\/archivio.ocasapiens.org\/index.php\/wp-json\/wp\/v2\/posts\/20768","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/archivio.ocasapiens.org\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/archivio.ocasapiens.org\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/archivio.ocasapiens.org\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/archivio.ocasapiens.org\/index.php\/wp-json\/wp\/v2\/comments?post=20768"}],"version-history":[{"count":2,"href":"https:\/\/archivio.ocasapiens.org\/index.php\/wp-json\/wp\/v2\/posts\/20768\/revisions"}],"predecessor-version":[{"id":41897,"href":"https:\/\/archivio.ocasapiens.org\/index.php\/wp-json\/wp\/v2\/posts\/20768\/revisions\/41897"}],"wp:attachment":[{"href":"https:\/\/archivio.ocasapiens.org\/index.php\/wp-json\/wp\/v2\/media?parent=20768"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/archivio.ocasapiens.org\/index.php\/wp-json\/wp\/v2\/categories?post=20768"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/archivio.ocasapiens.org\/index.php\/wp-json\/wp\/v2\/tags?post=20768"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}