{"id":5235,"date":"2018-11-07T16:43:34","date_gmt":"2018-11-07T19:43:34","guid":{"rendered":"https:\/\/biologo.com.br\/bio\/?p=5235"},"modified":"2025-12-01T10:28:30","modified_gmt":"2025-12-01T13:28:30","slug":"tubarao-martelo","status":"publish","type":"post","link":"https:\/\/biologo.com.br\/bio\/tubarao-martelo\/","title":{"rendered":"Tubar\u00e3o-martelo"},"content":{"rendered":"\n<p><span style=\"font-size: 14pt; color: #000000;\"><span style=\"color: #3366ff;\"><strong>O tubar\u00e3o-martelo (Sphyrna spp.)<\/strong><\/span> \u00e9 um g\u00eanero de tubar\u00e3o, facilmente identific\u00e1vel pelas proje\u00e7\u00f5es em ambos os lados da cabe\u00e7a, onde se localizam os olhos e as narinas.&nbsp;<span style=\"font-size: 14pt;\">Os tubar\u00f5es-martelo s\u00e3o os mais amea\u00e7ados de extin\u00e7\u00e3o. <\/span><\/span><\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span style=\"font-family: 'courier new', courier, monospace; font-size: 24pt; color: #000000;\"><strong>Tubar\u00e3o-martelo&nbsp;(Sphyrna spp.)<\/strong><\/span><\/h2>\n\n\n\n<p class=\"has-cm-color-6-color has-text-color has-link-color has-medium-font-size wp-elements-fe11cede26fff327ffc0c6fc364f158d\"><span style=\"color: #000000;\"><span style=\"font-family: georgia, palatino, serif; font-size: 18pt;\"><strong>C<\/strong><\/span>om distribui\u00e7\u00e3o cosmopolita pelos oceanos do mundo,&nbsp;as esp\u00e9cies de Sphyrna t\u00eam uma tend\u00eancia a habitar \u00e1guas costeiras ao longo da zona intertidal, em vez do oceano aberto.&nbsp;S\u00e3o animais greg\u00e1rios que se deslocam em cardumes que podem chegar a 100 exemplares.<\/span><\/p>\n\n\n\n<p class=\"has-cm-color-6-color has-text-color has-link-color has-medium-font-size wp-elements-a4d6d87ed2a73a15e92b1eb958d7869f\"><span style=\"color: #000000;\">\u00c9 um predador agressivo que consome principalmente peixes, <a style=\"color: #000000;\" href=\"https:\/\/biologo.com.br\/bio\/cefalopodes\/\">cefal\u00f3podes<\/a>, raias e at\u00e9 outros tubar\u00f5es.&nbsp;<a href=\"https:\/\/biologo.com.br\/bio\/invertebrados\/\">Invertebrados<\/a>, pequenos crust\u00e1ceos e outros organismos b\u00eanticos que se escondem nas areias e sedimentos ao longo dessas zonas, tamb\u00e9m fazem parte do &#8220;card\u00e1pio&#8221;.<\/span><\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter wp-image-4224 size-full\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" width=\"631\" height=\"351\" 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\" src=\"https:\/\/i0.wp.com\/biologo.com.br\/bio\/wp-content\/uploads\/2018\/06\/tubarao-martelo.jpg?resize=631%2C351&#038;ssl=1\" alt=\"Mist\u00e9rios do Tubar\u00e3o Martelo\" class=\"wp-image-4224\" srcset=\"https:\/\/i0.wp.com\/biologo.com.br\/bio\/wp-content\/uploads\/2018\/06\/tubarao-martelo.jpg?w=631&amp;ssl=1 631w, https:\/\/i0.wp.com\/biologo.com.br\/bio\/wp-content\/uploads\/2018\/06\/tubarao-martelo.jpg?resize=300%2C167&amp;ssl=1 300w\" sizes=\"auto, (max-width: 631px) 100vw, 631px\" \/><figcaption class=\"wp-element-caption\"><span style=\"font-size: 10pt; color: #000000;\"><span style=\"color: #0000ff;\"><a style=\"color: #0000ff;\" href=\"https:\/\/biologo.com.br\/bio\/misterios-do-tubarao-martelo\/\">Mist\u00e9rios do Tubar\u00e3o Martelo<\/a><\/span><span style=\"font-size: 8pt;\">. by Barry Peters<\/span><\/span><\/figcaption><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\"><span style=\"color: #000000;\"><strong><span style=\"font-size: 12pt;\">Reprodu\u00e7\u00e3o<\/span><\/strong><\/span><\/h3>\n\n\n\n<p class=\"has-cm-color-6-color has-text-color has-link-color has-medium-font-size wp-elements-6e21ed1e340c645a442a3a916c9a0a9a\"><span style=\"color: #000000;\">O ritual de acasalamento do tubar\u00e3o martelo \u00e9 violento. O macho persegue e morde a f\u00eamea at\u00e9 esta ceder aos avan\u00e7os. <\/span><\/p>\n\n\n\n<p class=\"has-cm-color-6-color has-text-color has-link-color has-medium-font-size wp-elements-90da16c911db36f632ebe24f5d24dca9\"><span style=\"color: #000000;\">A fecunda\u00e7\u00e3o \u00e9 interna e os ovos s\u00e3o incubados dentro do corpo da f\u00eamea ao longo de 10 a 12 meses, at\u00e9 esta dar \u00e0 luz cerca de 12 a 15 indiv\u00edduos totalmente formados. A esp\u00e9cie n\u00e3o presta cuidados \u00e0s crias.<\/span><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><span style=\"font-size: 14pt; color: #0000ff;\"><a style=\"color: #0000ff;\" href=\"https:\/\/biologo.com.br\/bio\/misterios-do-tubarao-martelo\/\">Mist\u00e9rios do Tubar\u00e3o Martelo<\/a><\/span><\/li>\n\n\n\n<li><span style=\"font-size: 14pt; color: #0000ff;\"><a style=\"color: #0000ff;\" href=\"https:\/\/biologo.com.br\/bio\/tubarao-baleia\/\">Tubar\u00e3o-baleia<\/a><\/span><\/li>\n\n\n\n<li><span style=\"font-size: 14pt; color: #0000ff;\"><a style=\"color: #0000ff;\" href=\"https:\/\/biologo.com.br\/bio\/biologia-marinha\/\">Biologia Marinha<\/a><\/span><\/li>\n<\/ul>\n\n\n\n<p class=\"has-cm-color-6-color has-text-color has-link-color has-medium-font-size wp-elements-06da1abf96c2eafce5e9c832806e6e78\"><span style=\"color: #000000;\">Em 2006, uma f\u00eamea de tubar\u00e3o-martelo prenha foi capturada. Com o peso recorde de 580 kg, ela carregava 55 filhotes, um n\u00famero surpreendente.<\/span><\/p>\n\n\n\n<p class=\"has-cm-color-6-color has-text-color has-link-color has-medium-font-size wp-elements-7b5ace4a116a3d247e5b787187a5e1a7\"><span style=\"color: #000000;\">Como os demais tubar\u00f5es, eles possuem sensores eletromagn\u00e9ticos chamados ampolas de Lorenzini. Estes auxiliam na localiza\u00e7\u00e3o de suas presas.<\/span><\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\" style=\"border-radius:100px\">\n<p><span style=\"color: #ffffff; font-size: 14pt;\">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 feitos.<\/span><\/p>\n<\/blockquote>\n\n\n\n<figure class=\"wp-block-image aligncenter\"><a href=\"https:\/\/i0.wp.com\/biologo.com.br\/bio\/wp-content\/uploads\/2018\/11\/tubarao-martelo-2.jpg?ssl=1\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" width=\"525\" height=\"342\" data-attachment-id=\"5237\" data-permalink=\"https:\/\/biologo.com.br\/bio\/tubarao-martelo\/tubarao-martelo-2\/\" data-orig-file=\"https:\/\/i0.wp.com\/biologo.com.br\/bio\/wp-content\/uploads\/2018\/11\/tubarao-martelo-2.jpg?fit=525%2C342&amp;ssl=1\" data-orig-size=\"525,342\" 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-2\" data-image-description=\"&lt;p&gt;Tubar\u00e3o Martelo. &lt;\/p&gt;\n\" data-image-caption=\"&lt;p&gt;Tubar\u00e3o Martelo. by Suneko&lt;\/p&gt;\n\" data-large-file=\"https:\/\/i0.wp.com\/biologo.com.br\/bio\/wp-content\/uploads\/2018\/11\/tubarao-martelo-2.jpg?fit=525%2C342&amp;ssl=1\" src=\"https:\/\/i0.wp.com\/biologo.com.br\/bio\/wp-content\/uploads\/2018\/11\/tubarao-martelo-2.jpg?resize=525%2C342&#038;ssl=1\" alt=\"Tubar\u00e3o Martelo\" class=\"wp-image-5237\" srcset=\"https:\/\/i0.wp.com\/biologo.com.br\/bio\/wp-content\/uploads\/2018\/11\/tubarao-martelo-2.jpg?w=525&amp;ssl=1 525w, https:\/\/i0.wp.com\/biologo.com.br\/bio\/wp-content\/uploads\/2018\/11\/tubarao-martelo-2.jpg?resize=300%2C195&amp;ssl=1 300w\" sizes=\"auto, (max-width: 525px) 100vw, 525px\" \/><\/a><figcaption class=\"wp-element-caption\"><span style=\"font-size: 10pt; color: #000000;\">Tubar\u00e3o Martelo<span style=\"font-size: 8pt;\">. by <span style=\"text-decoration: underline;\"><a style=\"color: #000000; text-decoration: underline;\" href=\"https:\/\/www.flickr.com\/people\/suneko\/\" target=\"_blank\" rel=\"noopener\">Suneko<\/a><\/span><\/span><\/span><\/figcaption><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\"><span style=\"font-size: 12pt;\"><strong><span style=\"color: #000000;\">O G\u00eanero Sphyrna <\/span><\/strong><\/span><\/h3>\n\n\n\n<p class=\"has-cm-color-6-color has-text-color has-link-color has-medium-font-size wp-elements-6a3044affd845fe0bc42011f95896464\"><span style=\"color: #000000;\">Os membros do g\u00eanero Sphyrna tamb\u00e9m s\u00e3o conhecidos por um grande n\u00famero de sin\u00f4nimos, como Zygaena, Cestracion e Sphyrichthys. <\/span><\/p>\n\n\n\n<p class=\"has-cm-color-6-color has-text-color has-link-color has-medium-font-size wp-elements-eba0797dc6bc4163c5c10ed7e755f9bb\"><span style=\"color: #000000;\">As primeiras esp\u00e9cies descritas deste g\u00eanero foram <em>Sphyrna zygaena<\/em> por Carl Linnaeus em 1758, enquanto o \u00faltimo descrito membro <em>Sphyrna gilberti<\/em> foi descoberto e descrito em 2013.<\/span><\/p>\n\n\n\n<h4 class=\"wp-block-heading\"><span style=\"color: #000000; font-size: 10pt;\"><strong>Esp\u00e9cies de&nbsp;Tubar\u00e3o-martelo<\/strong><\/span><\/h4>\n\n\n\n<figure class=\"wp-block-image aligncenter\"><a href=\"https:\/\/i0.wp.com\/biologo.com.br\/bio\/wp-content\/uploads\/2018\/06\/tubarao-martelo-forma.jpg?ssl=1\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" width=\"631\" height=\"351\" 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\" src=\"https:\/\/i0.wp.com\/biologo.com.br\/bio\/wp-content\/uploads\/2018\/06\/tubarao-martelo-forma.jpg?resize=631%2C351&#038;ssl=1\" alt=\"\" class=\"wp-image-4225\" srcset=\"https:\/\/i0.wp.com\/biologo.com.br\/bio\/wp-content\/uploads\/2018\/06\/tubarao-martelo-forma.jpg?w=631&amp;ssl=1 631w, https:\/\/i0.wp.com\/biologo.com.br\/bio\/wp-content\/uploads\/2018\/06\/tubarao-martelo-forma.jpg?resize=300%2C167&amp;ssl=1 300w\" sizes=\"auto, (max-width: 631px) 100vw, 631px\" \/><\/a><\/figure>\n\n\n\n<p><span style=\"font-size: 10pt; color: #000000;\"><strong><em>Sphyrna corona<\/em><\/strong> (S. Springer, 1940) (scalloped bonnethead);&nbsp;<\/span><span style=\"font-size: 10pt; color: #000000;\"><strong><em>Sphyrna gilberti<\/em><\/strong> Quattro, Driggers, Grady, Ulrich &amp; M. A. Roberts, 2013; (Carolina hammerhead);&nbsp;<\/span><span style=\"font-size: 10pt; color: #000000;\"><strong><em>Sphyrna lewini<\/em> <\/strong>(E. Griffith &amp; C. H. Smith, 1834) (scalloped hammerhead);&nbsp;<\/span><span style=\"font-size: 10pt; color: #000000;\"><em><strong>Sphyrna media<\/strong><\/em> (S. Springer, 1940) (scoophead);&nbsp;<\/span><span style=\"font-size: 10pt; color: #000000;\"><em><strong>Sphyrna mokarran<\/strong><\/em> (R\u00fcppell, 1837) (great hammerhead);&nbsp;<\/span><span style=\"font-size: 10pt; color: #000000;\"><em><strong>Sphyrna tiburo<\/strong><\/em> (Linnaeus, 1758) (bonnethead);&nbsp;<\/span><span style=\"font-size: 10pt; color: #000000;\"><em><strong>Sphyrna tudes<\/strong> <\/em>(Valenciennes, 1822) (smalleye hammerhead);&nbsp;<\/span><span style=\"font-size: 10pt; color: #000000;\"><em><strong>Sphyrna zygaena <\/strong><\/em>(Linnaeus, 1758) (smooth hammerhead)<\/span><\/p>\n\n\n\n<h5 class=\"wp-block-heading\"><strong><span style=\"font-size: 10pt; color: #000000;\">Esp\u00e9cies Extintas<\/span><\/strong><\/h5>\n\n\n\n<p><span style=\"font-size: 10pt; color: #000000;\">\u2020 <em><strong>Sphyrna arambourgi<\/strong><\/em> (Cappetta, 1970);\u00a0\u2020<em><strong> Sphyrna gibbesii<\/strong> <\/em>(Hay, 1902);\u00a0\u2020 <em><strong>Sphyrna integra<\/strong><\/em> (Probst, 1878);\u00a0\u2020 <em><strong>Sphyrna laevissima<\/strong><\/em> (Cope, 1867);\u00a0\u2020 <em><strong>Sphyrna magna<\/strong><\/em> (Cope, 1867)<\/span><\/p>\n\n\n\n<p class=\"has-cm-color-6-color has-text-color has-link-color has-medium-font-size wp-elements-a9c79a2c76c52ab01e03f5544e9b5c92\">Em s\u00edntese, o tubar\u00e3o-martelo (Sphyrna spp.) \u00e9 um predador fascinante e ao mesmo tempo vulner\u00e1vel, cuja sobreviv\u00eancia depende diretamente de a\u00e7\u00f5es de conserva\u00e7\u00e3o eficazes. Portanto, compreender sua biologia e comportamento n\u00e3o \u00e9 apenas um exerc\u00edcio cient\u00edfico, mas tamb\u00e9m um passo essencial para garantir o equil\u00edbrio dos ecossistemas marinhos. <\/p>\n\n\n\n<p class=\"has-cm-color-6-color has-text-color has-link-color has-medium-font-size wp-elements-880ac9ff0c07281526b5971a78942fb7\">Assim, ao refletirmos sobre sua import\u00e2ncia ecol\u00f3gica e o risco de extin\u00e7\u00e3o, torna-se evidente que a preserva\u00e7\u00e3o dessa esp\u00e9cie \u00e9 uma responsabilidade coletiva. Dessa forma, proteger o tubar\u00e3o-martelo significa tamb\u00e9m proteger a diversidade e a sa\u00fade dos oceanos.<br><\/p>\n\n\n\n<h6 class=\"wp-block-heading\"><span style=\"font-size: 10pt;\"><strong><strong style=\"font-family: &quot;courier new&quot;, courier, monospace; font-size: 12pt;\">Fontes e refer\u00eancias:<\/strong><\/strong><\/span><\/h6>\n\n\n\n<ul class=\"wp-block-list\">\n<li class=\"has-black-color has-text-color has-link-color has-small-font-size wp-elements-abfb137f4a15ab5eac02ba695e8cd447\">Kotas, J. E., &amp; Petrere Jr., M. (2004). <em><a href=\"https:\/\/repositorio.usp.br\/item\/001425696\" target=\"_blank\" rel=\"noreferrer noopener\">Din\u00e2mica de popula\u00e7\u00f5es e pesca do tubar\u00e3o-martelo Sphyrna lewini <\/a>(Griffith &amp; Smith, 1834), capturado no mar territorial e zona econ\u00f4mica exclusiva do sudeste-sul do Brasil<\/em>.<\/li>\n\n\n\n<li class=\"has-cm-color-6-color has-text-color has-link-color has-small-font-size wp-elements-c00cbcdacbca4ed905cd0cbae123b347\">Kotas, J. E. (1996). <em><a href=\"https:\/\/www.gov.br\/icmbio\/pt-br\/assuntos\/centros-de-pesquisa\/biodiversidade-marinha-do-sudeste-e-sul\/acervo-digital\/trabalhos-tecnicos\/pub_1996_biologia_martelo-1.pdf\" target=\"_blank\" rel=\"noreferrer noopener\">Relat\u00f3rio preliminar sobre a biologia e pesca do tubar\u00e3o-martelo Sphyrna lewini no mar territorial e zona econ\u00f4mica exclusiva do sul do Brasil durante os anos 1995-1996<\/a><\/em>. CEPSUL\/IBAMA [PDF]<\/li>\n\n\n\n<li class=\"has-cm-color-6-color has-text-color has-link-color has-small-font-size wp-elements-88be1720ba6eb54454e893dad5b05504\">Biblioteca Virtual da FAPESP. (s.d.). <em><a href=\"https:\/\/bv.fapesp.br\/pt\/assunto\/169561\/tubarao-martelo\/\" target=\"_blank\" rel=\"noreferrer noopener\">Projetos de pesquisa sobre tubar\u00e3o-martelo<\/a><\/em>. S\u00e3o Paulo: FAPESP.<\/li>\n<\/ul>\n\n\n\n<figure class=\"wp-block-image aligncenter is-resized\"><a href=\"https:\/\/biologo.com.br\/bio\/apoie-o-biologo\/\"><img loading=\"lazy\" decoding=\"async\" width=\"174\" height=\"147\" data-attachment-id=\"11979\" data-permalink=\"https:\/\/biologo.com.br\/bio\/caracal-um-mestre-da-sobrevivencia\/apoiepeq\/\" data-orig-file=\"https:\/\/i0.wp.com\/biologo.com.br\/bio\/wp-content\/uploads\/2022\/05\/apoiepeq.jpg?fit=174%2C147&amp;ssl=1\" data-orig-size=\"174,147\" 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=\"apoiepeq\" data-image-description=\"&lt;p&gt;Apoie o Bi\u00f3logo&lt;\/p&gt;\n\" data-image-caption=\"\" data-large-file=\"https:\/\/i0.wp.com\/biologo.com.br\/bio\/wp-content\/uploads\/2022\/05\/apoiepeq.jpg?fit=174%2C147&amp;ssl=1\" src=\"https:\/\/i0.wp.com\/biologo.com.br\/bio\/wp-content\/uploads\/2022\/05\/apoiepeq.jpg?resize=174%2C147&amp;ssl=1\" alt=\"Apoie o Bi\u00f3logo\" class=\"wp-image-11979\" style=\"width:156px;height:auto\" title=\"Apoie o Bi\u00f3logo\"\/><\/a><\/figure>\n\n\n\n<p class=\"has-text-align-center\"><a href=\"https:\/\/biologo.com.br\/bio\/apoie-o-biologo\/\">Apoie o Bi\u00f3logo<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>O tubar\u00e3o-martelo (Sphyrna spp.) \u00e9 um g\u00eanero de tubar\u00e3o, facilmente identific\u00e1vel pelas proje\u00e7\u00f5es em ambos os lados da cabe\u00e7a, onde<\/p>\n","protected":false},"author":1,"featured_media":5240,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"colormag_page_container_layout":"default_layout","colormag_page_sidebar_layout":"default_layout","jetpack_post_was_ever_published":false,"_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}},"categories":[4,135,19,27],"tags":[],"class_list":["post-5235","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-biologiamarinha","category-conservacao","category-ictiologia","category-zoologia"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.5 - 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Mist\u00e9rios do Tubar\u00e3o Martelo [HD]\u00a0 https:\/\/www.youtube.com\/watch?v=ygdMgzMTa6o O tubar\u00e3o-martelo (Sphyrna spp.) \u00e9 um g\u00eanero de tubar\u00e3o, caracter\u00edstico pelas proje\u00e7\u00f5es existentes em ambos os lados\u2026","rel":"","context":"Em &quot;Biologia&quot;","block_context":{"text":"Biologia","link":"https:\/\/biologo.com.br\/bio\/category\/biologia2\/"},"img":{"alt_text":"Mist\u00e9rios do Tubar\u00e3o Martelo","src":"https:\/\/i0.wp.com\/biologo.com.br\/bio\/wp-content\/uploads\/2018\/06\/tubarao-martelo.jpg?fit=631%2C351&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/biologo.com.br\/bio\/wp-content\/uploads\/2018\/06\/tubarao-martelo.jpg?fit=631%2C351&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/biologo.com.br\/bio\/wp-content\/uploads\/2018\/06\/tubarao-martelo.jpg?fit=631%2C351&ssl=1&resize=525%2C300 1.5x"},"classes":[]},{"id":5781,"url":"https:\/\/biologo.com.br\/bio\/os-tubaroes\/","url_meta":{"origin":5235,"position":1},"title":"Os Tubar\u00f5es","author":"pozzana","date":"agosto 13, 2019","format":false,"excerpt":"Os Tubar\u00f5es: Enquanto muitos pensam que os tubar\u00f5es s\u00e3o \"m\u00e1quinas de matar\", somos n\u00f3s humanos que realmente estamos assassinando milhares desses animais todos os anos. Na verdade esses animais s\u00e3o muito diferentes da imagem que temos deles. Novos estudos t\u00eam indicado que muitas esp\u00e9cies de tubar\u00f5es possuem poderosas habilidades cognitivas,\u2026","rel":"","context":"Em &quot;Biologia marinha&quot;","block_context":{"text":"Biologia marinha","link":"https:\/\/biologo.com.br\/bio\/category\/biologiamarinha\/"},"img":{"alt_text":"Os tubar\u00f5es","src":"https:\/\/i0.wp.com\/biologo.com.br\/bio\/wp-content\/uploads\/2019\/04\/os-tubaroes.jpg?fit=631%2C351&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/biologo.com.br\/bio\/wp-content\/uploads\/2019\/04\/os-tubaroes.jpg?fit=631%2C351&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/biologo.com.br\/bio\/wp-content\/uploads\/2019\/04\/os-tubaroes.jpg?fit=631%2C351&ssl=1&resize=525%2C300 1.5x"},"classes":[]},{"id":5469,"url":"https:\/\/biologo.com.br\/bio\/salvem-os-tubaroes\/","url_meta":{"origin":5235,"position":2},"title":"Salvem os tubar\u00f5es","author":"pozzana","date":"dezembro 11, 2018","format":false,"excerpt":"Salvem os tubar\u00f5es: A\u00a0amea\u00e7a \u00e0 sobreviv\u00eancia dos tubar\u00f5es, representada pela pesca, \u00e9 progressiva, constante e silenciosa. Todavia, os tubar\u00f5es ainda enfrentam outras amea\u00e7as, como a polui\u00e7\u00e3o e acidifica\u00e7\u00e3o dos oceanos. Salvem os tubar\u00f5es De acordo com o grupo de especialistas em tubar\u00f5es da\u00a0IUCN, 24% das esp\u00e9cies est\u00e3o sob amea\u00e7a de\u2026","rel":"","context":"Em &quot;Bio\u00e9tica&quot;","block_context":{"text":"Bio\u00e9tica","link":"https:\/\/biologo.com.br\/bio\/category\/bioetica\/"},"img":{"alt_text":"Salvem os tubar\u00f5es","src":"https:\/\/i0.wp.com\/biologo.com.br\/bio\/wp-content\/uploads\/2018\/12\/Salvem-os-tubar%C3%B5es-pesca.jpg?fit=631%2C351&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/biologo.com.br\/bio\/wp-content\/uploads\/2018\/12\/Salvem-os-tubar%C3%B5es-pesca.jpg?fit=631%2C351&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/biologo.com.br\/bio\/wp-content\/uploads\/2018\/12\/Salvem-os-tubar%C3%B5es-pesca.jpg?fit=631%2C351&ssl=1&resize=525%2C300 1.5x"},"classes":[]},{"id":6604,"url":"https:\/\/biologo.com.br\/bio\/onde-se-cacam-tubaroes\/","url_meta":{"origin":5235,"position":3},"title":"Onde se ca\u00e7am tubar\u00f5es","author":"pozzana","date":"mar\u00e7o 5, 2020","format":false,"excerpt":"Onde se ca\u00e7am tubar\u00f5es: Mapeamento indica onde pesca amea\u00e7a tubar\u00f5es oce\u00e2nicos. Estudo internacional usou dados de monitoramento por sat\u00e9lite e prop\u00f5e ferramenta para delimitar \u00e1reas de preserva\u00e7\u00e3o Onde se ca\u00e7am tubar\u00f5es Mar\/2020 :: por Maria Guimar\u00e3es \/ Pesquisa FAPESP. Licen\u00e7a\u00a0CC BY-ND 4.0 \"J\u00e1 aconteceu de marcarmos tubar\u00f5es em Fernando de\u2026","rel":"","context":"Em &quot;Biologia marinha&quot;","block_context":{"text":"Biologia marinha","link":"https:\/\/biologo.com.br\/bio\/category\/biologiamarinha\/"},"img":{"alt_text":"Onde se ca\u00e7am tubar\u00f5es","src":"https:\/\/i0.wp.com\/biologo.com.br\/bio\/wp-content\/uploads\/2020\/03\/Onde-se-cacam-tubaroes.jpg?fit=1201%2C676&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/biologo.com.br\/bio\/wp-content\/uploads\/2020\/03\/Onde-se-cacam-tubaroes.jpg?fit=1201%2C676&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/biologo.com.br\/bio\/wp-content\/uploads\/2020\/03\/Onde-se-cacam-tubaroes.jpg?fit=1201%2C676&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/biologo.com.br\/bio\/wp-content\/uploads\/2020\/03\/Onde-se-cacam-tubaroes.jpg?fit=1201%2C676&ssl=1&resize=700%2C400 2x, https:\/\/i0.wp.com\/biologo.com.br\/bio\/wp-content\/uploads\/2020\/03\/Onde-se-cacam-tubaroes.jpg?fit=1201%2C676&ssl=1&resize=1050%2C600 3x"},"classes":[]},{"id":5786,"url":"https:\/\/biologo.com.br\/bio\/documentario-evolucao-dos-tubaroes\/","url_meta":{"origin":5235,"position":4},"title":"Document\u00e1rio Evolu\u00e7\u00e3o dos tubar\u00f5es","author":"pozzana","date":"mar\u00e7o 21, 2019","format":"video","excerpt":"Document\u00e1rio Evolu\u00e7\u00e3o dos tubar\u00f5es: Evid\u00eancias da exist\u00eancia de tubar\u00f5es datam do per\u00edodo Ordoviciano, 450-420 milh\u00f5es de anos atr\u00e1s, antes que existissem vertebrados terrestres e antes que uma variedade de plantas colonizasse os continentes. Os primeiros tubar\u00f5es tinham aspecto muito diferente dos modernos tubar\u00f5es. Document\u00e1rio Evolu\u00e7\u00e3o dos tubar\u00f5es https:\/\/www.youtube.com\/watch?v=jH_kU37n5pQ&ab_channel=musicainstrumentalebiologiaII A maioria\u2026","rel":"","context":"Em &quot;Biologia marinha&quot;","block_context":{"text":"Biologia marinha","link":"https:\/\/biologo.com.br\/bio\/category\/biologiamarinha\/"},"img":{"alt_text":"evolu\u00e7\u00e3o dos tubar\u00f5es","src":"https:\/\/i0.wp.com\/biologo.com.br\/bio\/wp-content\/uploads\/2019\/03\/evolucao-dos-tubaroes-video.jpg?fit=1200%2C675&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/biologo.com.br\/bio\/wp-content\/uploads\/2019\/03\/evolucao-dos-tubaroes-video.jpg?fit=1200%2C675&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/biologo.com.br\/bio\/wp-content\/uploads\/2019\/03\/evolucao-dos-tubaroes-video.jpg?fit=1200%2C675&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/biologo.com.br\/bio\/wp-content\/uploads\/2019\/03\/evolucao-dos-tubaroes-video.jpg?fit=1200%2C675&ssl=1&resize=700%2C400 2x, https:\/\/i0.wp.com\/biologo.com.br\/bio\/wp-content\/uploads\/2019\/03\/evolucao-dos-tubaroes-video.jpg?fit=1200%2C675&ssl=1&resize=1050%2C600 3x"},"classes":[]},{"id":5168,"url":"https:\/\/biologo.com.br\/bio\/tubarao-de-galapagos\/","url_meta":{"origin":5235,"position":5},"title":"Tubar\u00e3o de Gal\u00e1pagos","author":"pozzana","date":"outubro 24, 2018","format":false,"excerpt":"O Tubar\u00e3o de Gal\u00e1pagos (Carcharhinus galapagensis) \u00e9 uma esp\u00e9cie da fam\u00edlia Carcharhinidae, encontrado em diversas partes do mundo. A esp\u00e9cie foi catalogada em 1905, depois que esp\u00e9cimes foram encontradas nos mares em torno das Ilhas Gal\u00e1pagos. Tubar\u00e3o de Gal\u00e1pagos A Uni\u00e3o Internacional para a Conserva\u00e7\u00e3o da Natureza (IUCN) avaliou esta\u2026","rel":"","context":"Em &quot;Biodiversidade&quot;","block_context":{"text":"Biodiversidade","link":"https:\/\/biologo.com.br\/bio\/category\/biodiversidade\/"},"img":{"alt_text":"Tubar\u00e3o de Gal\u00e1pagos","src":"https:\/\/i0.wp.com\/biologo.com.br\/bio\/wp-content\/uploads\/2018\/10\/Galapagos-shark.jpg?fit=631%2C351&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/biologo.com.br\/bio\/wp-content\/uploads\/2018\/10\/Galapagos-shark.jpg?fit=631%2C351&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/biologo.com.br\/bio\/wp-content\/uploads\/2018\/10\/Galapagos-shark.jpg?fit=631%2C351&ssl=1&resize=525%2C300 1.5x"},"classes":[]}],"jetpack_sharing_enabled":true,"jetpack_likes_enabled":true,"jetpack_shortlink":"https:\/\/wp.me\/p6NB6B-1mr","amp_enabled":true,"_links":{"self":[{"href":"https:\/\/biologo.com.br\/bio\/wp-json\/wp\/v2\/posts\/5235","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/biologo.com.br\/bio\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/biologo.com.br\/bio\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/biologo.com.br\/bio\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/biologo.com.br\/bio\/wp-json\/wp\/v2\/comments?post=5235"}],"version-history":[{"count":1,"href":"https:\/\/biologo.com.br\/bio\/wp-json\/wp\/v2\/posts\/5235\/revisions"}],"predecessor-version":[{"id":20314,"href":"https:\/\/biologo.com.br\/bio\/wp-json\/wp\/v2\/posts\/5235\/revisions\/20314"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/biologo.com.br\/bio\/wp-json\/wp\/v2\/media\/5240"}],"wp:attachment":[{"href":"https:\/\/biologo.com.br\/bio\/wp-json\/wp\/v2\/media?parent=5235"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/biologo.com.br\/bio\/wp-json\/wp\/v2\/categories?post=5235"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/biologo.com.br\/bio\/wp-json\/wp\/v2\/tags?post=5235"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}