{"id":1651,"date":"2020-09-14T17:20:18","date_gmt":"2020-09-14T20:20:18","guid":{"rendered":"http:\/\/oca.eco.br\/?p=1651"},"modified":"2021-03-12T10:23:57","modified_gmt":"2021-03-12T13:23:57","slug":"a-intrusao-salina-e-o-sedimento-do-estuario-mocajuba","status":"publish","type":"post","link":"https:\/\/oca.eco.br\/en\/a-intrusao-salina-e-o-sedimento-do-estuario-mocajuba\/","title":{"rendered":"The Saline intrusion and Sediment from the Mocajuba estuary"},"content":{"rendered":"<div data-elementor-type=\"wp-post\" data-elementor-id=\"1651\" class=\"elementor elementor-1651\" data-elementor-post-type=\"post\">\n\t\t\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-518d1b2 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"518d1b2\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-a53cdd3\" data-id=\"a53cdd3\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-edafbbd elementor-widget elementor-widget-post-info\" data-id=\"edafbbd\" data-element_type=\"widget\" data-widget_type=\"post-info.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<ul class=\"elementor-inline-items elementor-icon-list-items elementor-post-info\">\n\t\t\t\t\t\t\t\t<li class=\"elementor-icon-list-item elementor-repeater-item-778e589 elementor-inline-item\" itemprop=\"author\">\n\t\t\t\t\t\t<a href=\"https:\/\/oca.eco.br\/en\/author\/lapmar-sites\/\">\n\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-icon\">\n\t\t\t\t\t\t\t\t<i aria-hidden=\"true\" class=\"far fa-user-circle\"><\/i>\t\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-text elementor-post-info__item elementor-post-info__item--type-author\">\n\t\t\t\t\t\t\t\t\t\tlapmar.sites\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t<\/li>\n\t\t\t\t<li class=\"elementor-icon-list-item elementor-repeater-item-f9e462c elementor-inline-item\" itemprop=\"datePublished\">\n\t\t\t\t\t\t<a href=\"https:\/\/oca.eco.br\/en\/2020\/09\/14\/\">\n\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-icon\">\n\t\t\t\t\t\t\t\t<i aria-hidden=\"true\" class=\"fas fa-calendar\"><\/i>\t\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-text elementor-post-info__item elementor-post-info__item--type-date\">\n\t\t\t\t\t\t\t\t\t\t<time>September 14, 2020<\/time>\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t<\/li>\n\t\t\t\t<li class=\"elementor-icon-list-item elementor-repeater-item-413740d elementor-inline-item\" itemprop=\"commentCount\">\n\t\t\t\t\t\t<a href=\"https:\/\/oca.eco.br\/en\/a-intrusao-salina-e-o-sedimento-do-estuario-mocajuba\/#respond\">\n\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-icon\">\n\t\t\t\t\t\t\t\t<i aria-hidden=\"true\" class=\"far fa-comment-dots\"><\/i>\t\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-text elementor-post-info__item elementor-post-info__item--type-comments\">\n\t\t\t\t\t\t\t\t\t\tNo Comments\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t<\/li>\n\t\t\t\t<\/ul>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-b093ba0 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"b093ba0\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-8e4e2d5\" data-id=\"8e4e2d5\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-6a2ef4a elementor-widget elementor-widget-text-editor\" data-id=\"6a2ef4a\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>If you have been following the OCA, you already know the Mocajuba estuary. Previously, we told you that in the dry period, saline intrusion reaches approximately 30 km in the estuary (Gomes, 2018). Usually, in places with strong saline intrusions, there is the formation of marine organisms communities into the estuarine channel.<\/p>\n<p>The Mocajuba estuary is no different. These organisms can settle in the sediment, forming natural oyster banks, and even settle in the roots of the mangroves! The local population collects oysters and crabs, called extractive production, as well as mariculture, which is the cultivation of these organisms. Also, the existence of these \u201colder\u201d organisms allows the settlement of new organisms, the \u201cjuveniles\u201d, continuing the occupation cycle of the banks and mangroves roots. Wonderful isn't it?<\/p>\n<p>The marine intrusion registration and the occupation of marine organisms were also observed from sedimentological analyzes, studied by Pereira (2018). In other words, the author collected sediment from the bottom of the Mocajuba estuary and performed several analyzes with this material. The result? High content of calcium carbonate estuary above.<\/p>\n<p>You may be wondering, what is Calcium Carbonate and what is it doing at the estuary bottom? Well, the answer is quite simple. You may have seen some shells while walking on the beach. These shells are originated from marine organisms, which can make an external shell, where the main component is calcium carbonate (Figure 1). Some examples are from the phylum Mollusca:<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-05eb25c elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"05eb25c\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-0870d2c\" data-id=\"0870d2c\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-9bcd612 elementor-widget elementor-widget-image\" data-id=\"9bcd612\" data-element_type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img fetchpriority=\"high\" decoding=\"async\" width=\"600\" height=\"168\" src=\"https:\/\/oca.eco.br\/wp-content\/uploads\/2020\/09\/mat2_1.jpg\" class=\"attachment-large size-large wp-image-1648\" alt=\"\" srcset=\"https:\/\/oca.eco.br\/wp-content\/uploads\/2020\/09\/mat2_1.jpg 600w, https:\/\/oca.eco.br\/wp-content\/uploads\/2020\/09\/mat2_1-300x84.jpg 300w\" sizes=\"(max-width: 600px) 100vw, 600px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-a123746 elementor-widget elementor-widget-text-editor\" data-id=\"a123746\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>Figure 1. (A) Cephalopod mollusk, Nautilus. Source: <a href=\"https:\/\/oceana.org\/blog\/doomed-their-beauty-nautiluses-could-be-headed-toward-extinction\">https:\/\/oceana.org\/blog\/doomed-their-beauty-nautiluses-could-be-headed-toward-extinction<\/a>. (B) Monoplacophore mollusk. Source: <a href=\"http:\/\/www.conchasbrasil.org.br\/materias\/monoplacophora\/monoplacophora.asp\">http:\/\/www.conchasbrasil.org.br\/materias\/monoplacophora\/monoplacophora.asp<\/a>.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-45ca8f1 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"45ca8f1\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-top-column elementor-element elementor-element-c3e8fb5\" data-id=\"c3e8fb5\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-11eb493 elementor-widget elementor-widget-image\" data-id=\"11eb493\" data-element_type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img decoding=\"async\" width=\"440\" height=\"804\" src=\"https:\/\/oca.eco.br\/wp-content\/uploads\/2020\/09\/mat2_2.png\" class=\"attachment-medium_large size-medium_large wp-image-1650\" alt=\"\" srcset=\"https:\/\/oca.eco.br\/wp-content\/uploads\/2020\/09\/mat2_2.png 440w, https:\/\/oca.eco.br\/wp-content\/uploads\/2020\/09\/mat2_2-164x300.png 164w\" sizes=\"(max-width: 440px) 100vw, 440px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-d2fada1 elementor-widget elementor-widget-text-editor\" data-id=\"d2fada1\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>Figure 2. The calcium carbonate distribution in the Mocajuba estuary, Par\u00e1.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-top-column elementor-element elementor-element-4e4e659\" data-id=\"4e4e659\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-42a2363 elementor-widget elementor-widget-text-editor\" data-id=\"42a2363\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>Then, when these organisms die, the carapace sinks, reaching the estuary bottom, the sea, or the ocean, and then, that carapace becomes a part of the sediment. According to Pereira (2018), calcium carbonate was found up to approximately 25 km away from the estuary mouth! Thus, through sediment, it can affirm that the Mocajuba estuary has a strong marine influence (Figure 2).<\/p>\n<p>Interesting, isn't it? If you want to know more about our wide Amazon coast, stay tuned to OCA-Highlight!<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-54ebe32 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"54ebe32\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-51b5f30\" data-id=\"51b5f30\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-c0a9058 elementor-widget elementor-widget-heading\" data-id=\"c0a9058\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">References<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-49b225b elementor-widget elementor-widget-text-editor\" data-id=\"49b225b\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>Gomes, Jacqueline Ellen Pinheiro. 2018. EXTENS\u00c3O DA INTRUS\u00c3O SALINA NO ESTU\u00c1RIO MOCAJUBA E SUA INFLU\u00caNCIA NOS PAR\u00c2METROS F\u00cdSICO QU\u00cdMICOS E QUALIDADE DA \u00c1GUA. Trabalho de Conclus\u00e3o de Curso (Gradua\u00e7\u00e3o) &#8211; Faculdade de Oceanografia, Instituto de Geoci\u00eancias, Universidade Federal do Par\u00e1. Dispon\u00edvel em: <a href=\"http:\/\/bdm.ufpa.br\/jspui\/handle\/prefix\/1268\">http:\/\/bdm.ufpa.br\/jspui\/handle\/prefix\/1268<\/a><\/p><p>Pereira, D\u00e9bora Rodrigues. 2018. LIMITA\u00c7\u00d5ES DA SETORIZA\u00c7\u00c3O SEDIMENTAR DO ESTU\u00c1RIO MOCAJUBA. Trabalho de Conclus\u00e3o de Curso (Gradua\u00e7\u00e3o) &#8211; Faculdade de Oceanografia, Instituto de Geoci\u00eancias, Universidade Federal do Par\u00e1. Dispon\u00edvel em: <a href=\"http:\/\/bdm.ufpa.br\/jspui\/handle\/prefix\/856\">http:\/\/bdm.ufpa.br\/jspui\/handle\/prefix\/856<\/a><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-7336dae elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"7336dae\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-c3148ed\" data-id=\"c3148ed\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-4cdb587 elementor-share-buttons--view-icon elementor-share-buttons--shape-circle elementor-share-buttons--skin-gradient elementor-grid-0 elementor-share-buttons--color-official elementor-widget elementor-widget-share-buttons\" data-id=\"4cdb587\" data-element_type=\"widget\" data-widget_type=\"share-buttons.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-grid\" role=\"list\">\n\t\t\t\t\t\t\t\t<div class=\"elementor-grid-item\" role=\"listitem\">\n\t\t\t\t\t\t<div class=\"elementor-share-btn elementor-share-btn_facebook\" role=\"button\" tabindex=\"0\" aria-label=\"Share on facebook\" data-no-translation-aria-label=\"\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-share-btn__icon\">\n\t\t\t\t\t\t\t\t<i class=\"fab fa-facebook\" aria-hidden=\"true\"><\/i>\t\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t<div class=\"elementor-grid-item\" role=\"listitem\">\n\t\t\t\t\t\t<div class=\"elementor-share-btn elementor-share-btn_twitter\" role=\"button\" tabindex=\"0\" aria-label=\"Share on twitter\" data-no-translation-aria-label=\"\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-share-btn__icon\">\n\t\t\t\t\t\t\t\t<i class=\"fab fa-twitter\" aria-hidden=\"true\"><\/i>\t\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<\/div>","protected":false},"excerpt":{"rendered":"<p>Se voc\u00ea tem acompanhado o OCA, voc\u00ea j\u00e1 conhece o estu\u00e1rio Mocajuba. Anteriormente, te contamos que, no per\u00edodo seco, a intrus\u00e3o salina alcan\u00e7a aproximadamente 30 km no estu\u00e1rio (Gomes, 2018). Normalmente, em locais com fortes intrus\u00f5es salinas existe a forma\u00e7\u00e3o de comunidades de organismos marinhos muito adentro no canal estuarino. O estu\u00e1rio Mocajuba n\u00e3o \u00e9[&hellip;]<\/p>","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"zakra_general_container_width":0,"zakra_general_content_width":0,"zakra_general_sidebar_width":0,"zakra_sticky_header":"customizer","zakra_header_main_area":true,"zakra_site_logo_width":0,"zakra_header_top_enabled":"customizer","zakra_header_top_style":"customizer","zakra_primary_menu_item_style":"customizer","zakra_page_header_text_color":"","zakra_page_header_layout":"customizer","zakra_page_title_bg":"","zakra_footer_widgets_bg_image":0,"zakra_page_title_bg_repeat":"customizer","zakra_page_title_bg_position":"customizer","zakra_page_title_bg_size":"customizer","zakra_page_title_bg_attachment":"customizer","zakra_breadcrumbs_enabled":"customizer","zakra_breadcrumbs_text_color":"","zakra_breadcrumbs_separator_color":"","zakra_breadcrumbs_link_color":"","zakra_breadcrumbs_link_hover_color":"","zakra_page_title_bg_image":0,"zakra_footer_widgets_enabled":"customizer","zakra_footer_column_layout_1_style":"customizer","zakra_footer_widgets_bg":"","zakra_footer_widgets_bg_repeat":"customizer","zakra_footer_widgets_bg_position":"customizer","zakra_footer_widgets_bg_size":"customizer","zakra_footer_widgets_bg_attachment":"customizer","zakra_footer_bar_enabled":"customizer","zakra_footer_bar_style":"customizer","zakra_page_container_layout":"customizer","zakra_page_sidebar_layout":"customizer","zakra_remove_content_margin":false,"zakra_sidebar":"customizer","zakra_transparent_header":"customizer","zakra_logo":0,"zakra_main_header_style":"default","zakra_menu_item_color":"","zakra_menu_item_hover_color":"","zakra_menu_item_active_color":"","zakra_menu_active_style":"","zakra_page_header":true,"footnotes":""},"categories":[37],"tags":[],"class_list":["post-1651","post","type-post","status-publish","format-standard","hentry","category-conheca-o-ambiente"],"_links":{"self":[{"href":"https:\/\/oca.eco.br\/en\/wp-json\/wp\/v2\/posts\/1651","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/oca.eco.br\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/oca.eco.br\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/oca.eco.br\/en\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/oca.eco.br\/en\/wp-json\/wp\/v2\/comments?post=1651"}],"version-history":[{"count":0,"href":"https:\/\/oca.eco.br\/en\/wp-json\/wp\/v2\/posts\/1651\/revisions"}],"wp:attachment":[{"href":"https:\/\/oca.eco.br\/en\/wp-json\/wp\/v2\/media?parent=1651"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/oca.eco.br\/en\/wp-json\/wp\/v2\/categories?post=1651"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/oca.eco.br\/en\/wp-json\/wp\/v2\/tags?post=1651"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}