{"id":4223,"date":"2018-06-21T17:18:25","date_gmt":"2018-06-21T20:18:25","guid":{"rendered":"http:\/\/biologo.com.br\/bio\/?p=4223"},"modified":"2020-12-15T18:00:08","modified_gmt":"2020-12-15T21:00:08","slug":"misterios-do-tubarao-martelo","status":"publish","type":"post","link":"https:\/\/biologo.com.br\/bio\/misterios-do-tubarao-martelo\/","title":{"rendered":"Mist\u00e9rios do Tubar\u00e3o Martelo"},"content":{"rendered":"<p><span style=\"color: #000000; font-size: 14pt;\"><span style=\"color: #3366ff;\"><strong>Mist\u00e9rios do Tubar\u00e3o Martelo:<\/strong> <\/span>O tubar\u00e3o martelo \u00e9 uma das esp\u00e9cies amea\u00e7adas nos oceanos. Nesse document\u00e1rio um especialista faz experi\u00eancia de campo para estudar este not\u00f3rio predador.<\/span><\/p>\n<h2 style=\"text-align: center;\"><span style=\"font-size: 24pt; font-family: 'courier new', courier, monospace; color: #000000;\"><strong>Mist\u00e9rios do Tubar\u00e3o Martelo <\/strong>[HD]\u00a0<\/span><\/h2>\n<div class=\"jetpack-video-wrapper\"><iframe loading=\"lazy\" title=\"Mist\u00e9rios do Tubar\u00e3o Martelo HD Document\u00e1rio Dublado\" width=\"800\" height=\"450\" src=\"https:\/\/www.youtube.com\/embed\/ygdMgzMTa6o?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture\" allowfullscreen><\/iframe><\/div>\n<p><span style=\"color: #000000;\"><strong>O <a href=\"https:\/\/biologo.com.br\/bio\/tubarao-martelo\/\">tubar\u00e3o-martelo<\/a><\/strong> (Sphyrna spp.) \u00e9 um g\u00eanero de tubar\u00e3o, caracter\u00edstico pelas proje\u00e7\u00f5es existentes em ambos os lados da cabe\u00e7a, onde se localizam os olhos e as narinas.<\/span><\/p>\n<blockquote><p><span style=\"font-size: 14pt; color: #ffffff;\">Os tubar\u00f5es-martelo s\u00e3o os mais amea\u00e7ados de extin\u00e7\u00e3o. A popula\u00e7\u00e3o em 2003 correspondia a apenas 10% do n\u00famero estimado de animais em 1986, ano em que os registros populacionais come\u00e7aram a ser efetuados.<\/span><\/p><\/blockquote>\n<figure id=\"attachment_4224\" aria-describedby=\"caption-attachment-4224\" style=\"width: 300px\" class=\"wp-caption alignright\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" data-attachment-id=\"4224\" data-permalink=\"https:\/\/biologo.com.br\/bio\/misterios-do-tubarao-martelo\/tubarao-martelo\/\" data-orig-file=\"https:\/\/i0.wp.com\/biologo.com.br\/bio\/wp-content\/uploads\/2018\/06\/tubarao-martelo.jpg?fit=631%2C351&amp;ssl=1\" data-orig-size=\"631,351\" data-comments-opened=\"0\" data-image-meta=\"{&quot;aperture&quot;:&quot;0&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;0&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;0&quot;,&quot;iso&quot;:&quot;0&quot;,&quot;shutter_speed&quot;:&quot;0&quot;,&quot;title&quot;:&quot;&quot;,&quot;orientation&quot;:&quot;0&quot;}\" data-image-title=\"tubarao-martelo\" data-image-description=\"&lt;p&gt;By Barry Peters (Flickr) [CC BY 2.0 (https:\/\/creativecommons.org\/licenses\/by\/2.0)], via Wikimedia Commons&lt;\/p&gt;\n\" data-image-caption=\"&lt;p&gt;Mist\u00e9rios do Tubar\u00e3o Martelo. Cocos Island, Costa Rica. by Barry Peters&lt;\/p&gt;\n\" data-large-file=\"https:\/\/i0.wp.com\/biologo.com.br\/bio\/wp-content\/uploads\/2018\/06\/tubarao-martelo.jpg?fit=631%2C351&amp;ssl=1\" class=\"wp-image-4224 size-medium\" src=\"https:\/\/i0.wp.com\/biologo.com.br\/bio\/wp-content\/uploads\/2018\/06\/tubarao-martelo-300x167.jpg?resize=300%2C167\" alt=\"Mist\u00e9rios do Tubar\u00e3o Martelo\" width=\"300\" height=\"167\" srcset=\"https:\/\/i0.wp.com\/biologo.com.br\/bio\/wp-content\/uploads\/2018\/06\/tubarao-martelo.jpg?resize=300%2C167&amp;ssl=1 300w, https:\/\/i0.wp.com\/biologo.com.br\/bio\/wp-content\/uploads\/2018\/06\/tubarao-martelo.jpg?w=631&amp;ssl=1 631w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/><figcaption id=\"caption-attachment-4224\" class=\"wp-caption-text\"><span style=\"font-size: 10pt; color: #000000;\">Mist\u00e9rios do Tubar\u00e3o Martelo. Cocos Island, Costa Rica. by <a style=\"color: #000000;\" href=\"https:\/\/www.flickr.com\/photos\/barrypeters\/\" target=\"_blank\" rel=\"noopener noreferrer\">Barry Peters<\/a><\/span><\/figcaption><\/figure>\n<p><span style=\"color: #000000;\">O tubar\u00e3o-martelo \u00e9 um predador agressivo que consome peixes, cefal\u00f3podes, raias e outros tubar\u00f5es. Ocorre em \u00e1reas temperadas e quentes de todos os oceanos em zonas de plataforma continental. S\u00e3o animais greg\u00e1rios que se deslocam em cardumes que podem atingir 100 exemplares.<\/span><\/p>\n<ul>\n<li><span style=\"font-size: 14pt;\"><a href=\"http:\/\/biologo.com.br\/bio\/dia-mundial-dos-oceanos\/\">Dia Mundial dos Oceanos<\/a><\/span><\/li>\n<li><span style=\"font-size: 14pt;\"><a href=\"http:\/\/biologo.com.br\/bio\/documentarios-de-biologia-marinha\/\">Document\u00e1rios de Biologia Marinha<\/a><\/span><\/li>\n<\/ul>\n<p><span style=\"color: #000000;\">O formato hidrodin\u00e2mico lhe proporciona uma maior velocidade na hora de girar a cabe\u00e7a. E tamb\u00e9m porta um maior n\u00famero de <em>ampolas de Lorenzini,<\/em> que t\u00eam a fun\u00e7\u00e3o de detectar campos magn\u00e9ticos t\u00e3o min\u00fasculos quanto o batimento card\u00edaco de pequenos peixes.<\/span><\/p>\n<h3><span style=\"font-size: 12pt; color: #000000; font-family: 'courier new', courier, monospace;\"><strong>Reprodu\u00e7\u00e3o dos tubar\u00f5es-martelo <span style=\"color: #999999;\">&#8211;\u00a0Mist\u00e9rios do Tubar\u00e3o Martelo<\/span><\/strong><\/span><\/h3>\n<p><span style=\"color: #000000;\"><a href=\"https:\/\/i0.wp.com\/biologo.com.br\/bio\/wp-content\/uploads\/2018\/06\/tubarao-martelo-forma.jpg\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" data-attachment-id=\"4225\" data-permalink=\"https:\/\/biologo.com.br\/bio\/misterios-do-tubarao-martelo\/tubarao-martelo-forma\/\" data-orig-file=\"https:\/\/i0.wp.com\/biologo.com.br\/bio\/wp-content\/uploads\/2018\/06\/tubarao-martelo-forma.jpg?fit=631%2C351&amp;ssl=1\" data-orig-size=\"631,351\" data-comments-opened=\"0\" data-image-meta=\"{&quot;aperture&quot;:&quot;0&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;0&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;0&quot;,&quot;iso&quot;:&quot;0&quot;,&quot;shutter_speed&quot;:&quot;0&quot;,&quot;title&quot;:&quot;&quot;,&quot;orientation&quot;:&quot;0&quot;}\" data-image-title=\"tubarao-martelo-forma\" data-image-description=\"\" data-image-caption=\"\" data-large-file=\"https:\/\/i0.wp.com\/biologo.com.br\/bio\/wp-content\/uploads\/2018\/06\/tubarao-martelo-forma.jpg?fit=631%2C351&amp;ssl=1\" class=\"size-medium wp-image-4225 alignleft\" src=\"https:\/\/i0.wp.com\/biologo.com.br\/bio\/wp-content\/uploads\/2018\/06\/tubarao-martelo-forma-300x167.jpg?resize=300%2C167\" alt=\"tubar\u00e3o-martelo\" width=\"300\" height=\"167\" srcset=\"https:\/\/i0.wp.com\/biologo.com.br\/bio\/wp-content\/uploads\/2018\/06\/tubarao-martelo-forma.jpg?resize=300%2C167&amp;ssl=1 300w, https:\/\/i0.wp.com\/biologo.com.br\/bio\/wp-content\/uploads\/2018\/06\/tubarao-martelo-forma.jpg?w=631&amp;ssl=1 631w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/><\/a>A reprodu\u00e7\u00e3o dos tubar\u00f5es-martelo ocorre uma vez por ano, e t\u00eam 20 a 40 filhotes a cada cria.<\/span><\/p>\n<p><span style=\"color: #000000;\">O ritual de acasalamento do tubar\u00e3o-martelo \u00e9 muito violento, onde o macho persegue e morde a f\u00eamea at\u00e9 esta ceder aos seus avan\u00e7os. A fecunda\u00e7\u00e3o \u00e9 interna.<\/span><\/p>\n<p><span style=\"color: #000000;\"> Os ovos s\u00e3o incubados dentro do corpo da f\u00eamea ao longo de 10 a 12 meses, alimentados atrav\u00e9s de um \u00f3rg\u00e3o similar ao cord\u00e3o umbilical dos <a href=\"http:\/\/biologo.com.br\/bio\/mamiferos\/\">mam\u00edferos<\/a>, at\u00e9 esta dar \u00e0 luz. A esp\u00e9cie n\u00e3o presta cuidados parentais \u00e0s crias, deixando-as \u00e0 sua pr\u00f3pria sorte assim que nascem.<\/span><\/p>\n<p><span style=\"color: #000000;\">Em 23 de maio de 2006, uma f\u00eamea de tubar\u00e3o-martelo prenha foi capturada em Boca Grande, Fl\u00f3rida, com o peso recorde de 580 kg. Ela estava carregando 55 filhotes, sugerindo que os cientistas tivessem subestimado a quantidade de filhotes que os tubar\u00f5es podem ter por cria.<\/span><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Mist\u00e9rios do Tubar\u00e3o Martelo: O tubar\u00e3o martelo \u00e9 uma das esp\u00e9cies amea\u00e7adas nos oceanos. Nesse document\u00e1rio um especialista faz experi\u00eancia<\/p>\n","protected":false},"author":1,"featured_media":4224,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"video","meta":{"colormag_page_container_layout":"default_layout","colormag_page_sidebar_layout":"default_layout","_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":true,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2},"jetpack_post_was_ever_published":false},"categories":[1,135,19,126,27],"tags":[],"class_list":["post-4223","post","type-post","status-publish","format-video","has-post-thumbnail","hentry","category-biologia2","category-conservacao","category-ictiologia","category-videos","category-zoologia","post_format-post-format-video"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.5 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Mist\u00e9rios do Tubar\u00e3o Martelo [HD]\u00a0Document\u00e1rio - Biologia Marinha<\/title>\n<meta name=\"description\" content=\"Os tubar\u00f5es-martelo s\u00e3o os mais amea\u00e7ados de extin\u00e7\u00e3o. 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