{"id":7681,"date":"2025-04-04T13:26:42","date_gmt":"2025-04-04T16:26:42","guid":{"rendered":"https:\/\/oca.eco.br\/?p=7681"},"modified":"2025-04-04T14:44:31","modified_gmt":"2025-04-04T17:44:31","slug":"pororoca-a-onda-que-transforma-rios-e-ecossistemas-na-amazonia","status":"publish","type":"post","link":"https:\/\/oca.eco.br\/en\/pororoca-a-onda-que-transforma-rios-e-ecossistemas-na-amazonia\/","title":{"rendered":"Pororoca: The wave that transforms rivers and ecosystems in the Amazon"},"content":{"rendered":"<div data-elementor-type=\"wp-post\" data-elementor-id=\"7681\" class=\"elementor elementor-7681\" data-elementor-post-type=\"post\">\n\t\t\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-6305672 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"6305672\" 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-7caf57b\" data-id=\"7caf57b\" 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-09a1c62 elementor-widget elementor-widget-theme-post-title elementor-page-title elementor-widget-heading\" data-id=\"09a1c62\" data-element_type=\"widget\" data-widget_type=\"theme-post-title.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h1 class=\"elementor-heading-title elementor-size-default\">Pororoca: The wave that transforms rivers and ecosystems in the Amazon<\/h1>\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-b7f45d1 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"b7f45d1\" 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-ccabc00\" data-id=\"ccabc00\" 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-ed6d8be elementor-widget elementor-widget-post-info\" data-id=\"ed6d8be\" 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-6bee54b 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-8870801 elementor-inline-item\" itemprop=\"datePublished\">\n\t\t\t\t\t\t<a href=\"https:\/\/oca.eco.br\/en\/2025\/04\/04\/\">\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>April 4, 2025<\/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-80df317 elementor-inline-item\" itemprop=\"commentCount\">\n\t\t\t\t\t\t<a href=\"https:\/\/oca.eco.br\/en\/pororoca-a-onda-que-transforma-rios-e-ecossistemas-na-amazonia\/#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-d7f6376 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"d7f6376\" 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-656fecc\" data-id=\"656fecc\" 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-166f215 elementor-widget elementor-widget-heading\" data-id=\"166f215\" 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<h1 class=\"elementor-heading-title elementor-size-small\">What is it and how does it happen?<\/h1>\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-d311b7f elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"d311b7f\" 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-495e95e\" data-id=\"495e95e\" 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-43334fb elementor-widget elementor-widget-text-editor\" data-id=\"43334fb\" 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>Have you ever heard of Pororoca? This impressive natural phenomenon occurs when the flood tide invades the course of some rivers and some coastal environments with great force. Due to the tide's expressive energy about the fluvial force and the space it propagates, it can displace large amounts of water mass, which can advance for kilometers upstream! Its name is Tupi-Guarani origin and means \"big noise\". It plays a fundamental role in the balance of the Amazon's rivers and ecosystems<\/p><p>Dangerous and fascinating, the pororoca can be wild especially for small boats due to its force, which changes the river speed in seconds. At the same time, it is a great tourist attraction with impressive waves that attract surfers and visitors to enjoy this natural spectacle.<\/p>\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-c4655ed elementor-widget elementor-widget-image\" data-id=\"c4655ed\" 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=\"812\" height=\"492\" src=\"https:\/\/oca.eco.br\/wp-content\/uploads\/2025\/04\/Pororoca-do-Rio-Mearim-MA-03-2018-Foto-Jeremy-Dias-11-1024x621.jpg\" class=\"attachment-large size-large wp-image-7685\" alt=\"\" srcset=\"https:\/\/oca.eco.br\/wp-content\/uploads\/2025\/04\/Pororoca-do-Rio-Mearim-MA-03-2018-Foto-Jeremy-Dias-11-1024x621.jpg 1024w, https:\/\/oca.eco.br\/wp-content\/uploads\/2025\/04\/Pororoca-do-Rio-Mearim-MA-03-2018-Foto-Jeremy-Dias-11-300x182.jpg 300w, https:\/\/oca.eco.br\/wp-content\/uploads\/2025\/04\/Pororoca-do-Rio-Mearim-MA-03-2018-Foto-Jeremy-Dias-11-768x466.jpg 768w, https:\/\/oca.eco.br\/wp-content\/uploads\/2025\/04\/Pororoca-do-Rio-Mearim-MA-03-2018-Foto-Jeremy-Dias-11-18x12.jpg 18w, https:\/\/oca.eco.br\/wp-content\/uploads\/2025\/04\/Pororoca-do-Rio-Mearim-MA-03-2018-Foto-Jeremy-Dias-11.jpg 1200w\" sizes=\"(max-width: 812px) 100vw, 812px\" \/>\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\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-dac7615 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"dac7615\" 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-0ae3726\" data-id=\"0ae3726\" 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-452b42d elementor-widget elementor-widget-text-editor\" data-id=\"452b42d\" 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. Pororoca. Available at: https:\/\/portalamazonia.com\/amapa\/pororocas-saiba-em-quais-lugares-da-amazonia-o-rio-encontra-o-mar\/ <a href=\"https:\/\/portalamazonia.com\/amapa\/pororocas-saiba-em-quais-lugares-da-amazonia-o-rio-encontra-o-mar\/\">https:\/\/portalamazonia.com\/amapa\/pororocas-saiba-em-quais-lugares-da-amazonia-o-rio-encontra-o-mar\/<\/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-d865277 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"d865277\" 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-b1a2045\" data-id=\"b1a2045\" 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-044408e elementor-widget elementor-widget-text-editor\" data-id=\"044408e\" 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>Moreover, the Pororoca plays a major role in moving sediment and making nutrients and oxygen available, influencing the formation of sandbanks, water quality, and the distribution of fish species and other aquatic organisms, and is considered essential for creating habitats in rivers and coastal areas, as well as shaping the environment for the reproduction of animals that are adapted to the event.<\/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-8a42081 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"8a42081\" 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-0cbb301\" data-id=\"0cbb301\" 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-8ca1e83 elementor-widget elementor-widget-heading\" data-id=\"8ca1e83\" 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<h1 class=\"elementor-heading-title elementor-size-small\">The wave that shapes the river<\/h1>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-5383319 elementor-widget elementor-widget-text-editor\" data-id=\"5383319\" 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>A study conducted by researcher Adriel Carneiro from UFPA Marine Environmental Monitoring Research Laboratory (LAPMAR), analyzed the phenomenon in the Sucuriju River and showed that, after the wave passed, the speed of the water quickly reversed and doubled.<\/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-20d4bb1 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"20d4bb1\" 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-6d88557\" data-id=\"6d88557\" 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-0f86868 elementor-widget elementor-widget-image\" data-id=\"0f86868\" 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=\"531\" height=\"278\" src=\"https:\/\/oca.eco.br\/wp-content\/uploads\/2025\/04\/Captura-de-tela-2025-04-03-154550.png\" class=\"attachment-medium_large size-medium_large wp-image-7686\" alt=\"\" srcset=\"https:\/\/oca.eco.br\/wp-content\/uploads\/2025\/04\/Captura-de-tela-2025-04-03-154550.png 531w, https:\/\/oca.eco.br\/wp-content\/uploads\/2025\/04\/Captura-de-tela-2025-04-03-154550-300x157.png 300w, https:\/\/oca.eco.br\/wp-content\/uploads\/2025\/04\/Captura-de-tela-2025-04-03-154550-18x9.png 18w\" sizes=\"(max-width: 531px) 100vw, 531px\" \/>\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-f49e33c elementor-widget elementor-widget-text-editor\" data-id=\"f49e33c\" 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 Map of the location of the monitoring carried out in the research Available at: https:\/\/doi.org\/10.1016\/j.rsma.2024.103721. <a href=\"https:\/\/doi.org\/10.1016\/j.rsma.2024.103721\">https:\/\/doi.org\/10.1016\/j.rsma.2024.103721.<\/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-e514fa3 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"e514fa3\" 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-f22bd72\" data-id=\"f22bd72\" 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-0e9bebb elementor-widget elementor-widget-text-editor\" data-id=\"0e9bebb\" 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>More than 70 occurrences were recorded in 03 months of monitoring the Amapa River. These sudden changes in the speed of the current and the energy of the system are demarcated by a \"Hydraulic Jump\", which is the hypothetical speed of propagation of this wave, considering only the differences in height. One of these recordings captured the change in the hydraulic jump speed from 1.97 m\/s to 4.81 m\/s in just 30 s, more than doubling the speed!<\/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-a615139 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"a615139\" 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-642994e\" data-id=\"642994e\" 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-ae67fea elementor-widget elementor-widget-image\" data-id=\"ae67fea\" 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=\"765\" height=\"444\" src=\"https:\/\/oca.eco.br\/wp-content\/uploads\/2025\/04\/Captura-de-tela-2025-04-04-131955.png\" class=\"attachment-large size-large wp-image-7693\" alt=\"\" srcset=\"https:\/\/oca.eco.br\/wp-content\/uploads\/2025\/04\/Captura-de-tela-2025-04-04-131955.png 765w, https:\/\/oca.eco.br\/wp-content\/uploads\/2025\/04\/Captura-de-tela-2025-04-04-131955-300x174.png 300w, https:\/\/oca.eco.br\/wp-content\/uploads\/2025\/04\/Captura-de-tela-2025-04-04-131955-18x10.png 18w\" sizes=\"(max-width: 765px) 100vw, 765px\" \/>\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-bf2f277 elementor-widget elementor-widget-text-editor\" data-id=\"bf2f277\" 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 3 - Graphical representation of hydraulic jumps. Available at: https:\/\/doi.org\/10.1016\/j.rsma.2024.103721 <a href=\"https:\/\/doi.org\/10.1016\/j.rsma.2024.103721\">https:\/\/doi.org\/10.1016\/j.rsma.2024.103721<\/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-726a88d elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"726a88d\" 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-b1fb36e\" data-id=\"b1fb36e\" 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-13b387a elementor-widget elementor-widget-text-editor\" data-id=\"13b387a\" 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>In addition, the study showed that the Pororoca generates turbulence that impacts the local ecosystem, and in Sucuriju it is classified as a breaking bore at the mouth of the river and as an undular bore at the river head, with well-demarcated secondary waves (whelps). This phenomenon acts as a river shaper, influencing the distribution of nutrients, organisms, and sediments.<span style=\"font-style: normal !msorm\"><em>breaking bore<\/em><\/span>\u201d ou onda quebrada na foz do rio, que remete \u00e0 uma onda de mar\u00e9 que quebra bruscamente, e como \u201c<i>undular bore<\/i>\u201d ou onda ondulada, mais na cabeceira do rio, com ondas secund\u00e1rias bem demarcadas (<i>whelps<\/i>). Esse fen\u00f4meno atua como um modelador do rio, influenciando a distribui\u00e7\u00e3o de nutrientes, organismos e sedimentos.<\/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-60257dd elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"60257dd\" 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-0a6c029\" data-id=\"0a6c029\" 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-3be3a4a elementor-widget elementor-widget-image\" data-id=\"3be3a4a\" 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 loading=\"lazy\" decoding=\"async\" width=\"735\" height=\"450\" src=\"https:\/\/oca.eco.br\/wp-content\/uploads\/2025\/04\/Captura-de-tela-2025-04-04-132151.png\" class=\"attachment-large size-large wp-image-7694\" alt=\"\" srcset=\"https:\/\/oca.eco.br\/wp-content\/uploads\/2025\/04\/Captura-de-tela-2025-04-04-132151.png 735w, https:\/\/oca.eco.br\/wp-content\/uploads\/2025\/04\/Captura-de-tela-2025-04-04-132151-300x184.png 300w, https:\/\/oca.eco.br\/wp-content\/uploads\/2025\/04\/Captura-de-tela-2025-04-04-132151-18x12.png 18w\" sizes=\"(max-width: 735px) 100vw, 735px\" \/>\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\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-b617dbe\" data-id=\"b617dbe\" 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-b456a3f elementor-widget elementor-widget-image\" data-id=\"b456a3f\" 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 loading=\"lazy\" decoding=\"async\" width=\"727\" height=\"451\" src=\"https:\/\/oca.eco.br\/wp-content\/uploads\/2025\/04\/Captura-de-tela-2025-04-04-132206.png\" class=\"attachment-large size-large wp-image-7695\" alt=\"\" srcset=\"https:\/\/oca.eco.br\/wp-content\/uploads\/2025\/04\/Captura-de-tela-2025-04-04-132206.png 727w, https:\/\/oca.eco.br\/wp-content\/uploads\/2025\/04\/Captura-de-tela-2025-04-04-132206-300x186.png 300w, https:\/\/oca.eco.br\/wp-content\/uploads\/2025\/04\/Captura-de-tela-2025-04-04-132206-18x12.png 18w\" sizes=\"(max-width: 727px) 100vw, 727px\" \/>\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\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-931c702 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"931c702\" 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-ac74e65\" data-id=\"ac74e65\" 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-260b97d elementor-widget elementor-widget-text-editor\" data-id=\"260b97d\" 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 4 - Image of the mouth, on the left, and upstream, on the right, of the research monitoring river. Available at: https:\/\/doi.org\/10.1016\/j.rsma.2024.103721 <a href=\"https:\/\/doi.org\/10.1016\/j.rsma.2024.103721\">https:\/\/doi.org\/10.1016\/j.rsma.2024.103721<\/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-5d59bf3 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"5d59bf3\" 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-a8f5a9a\" data-id=\"a8f5a9a\" 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-8dffcc6 elementor-widget elementor-widget-text-editor\" data-id=\"8dffcc6\" 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>Adriel adds that the phenomenon occurs in several different environments abroad but always in the transition zone between marine and terrestrial environments. Much more than just the \"meeting of the river and the sea\", the pororoca is a complex phenomenon that does not necessarily demarcate the meeting of these waters but demonstrates how this great force and energy of the tidal wave can completely shape the environment around it, govern the hydro-sedimentary and biochemical dynamics of the place, as well as dictating the migration of various populations of organisms.<\/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-285a51a elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"285a51a\" 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-f02ac10\" data-id=\"f02ac10\" 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-e037bb2 elementor-widget elementor-widget-heading\" data-id=\"e037bb2\" 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-186d6f4 elementor-widget elementor-widget-text-editor\" data-id=\"186d6f4\" 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><span class=\"OYPEnA font-feature-liga-off font-feature-clig-off font-feature-calt-off text-decoration-none text-strikethrough-none\">CARNEIRO, A. G.; ROLLNIC, M. Hydrodynamic and turbulence associated with tidal bore propagation in an amazonian macrotidal system. Regional Studies in Marine Science, v. 77, p. 103721, dez. 2024.<\/span><\/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-a60c3b1 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"a60c3b1\" 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-c894dc9\" data-id=\"c894dc9\" 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-76b5f61 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=\"76b5f61\" 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\">\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\">\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>Conhe\u00e7a os botos da Amaz\u00f4nia.<\/p>","protected":false},"author":1,"featured_media":7684,"comment_status":"open","ping_status":"open","sticky":false,"template":"elementor_theme","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":"0","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":false,"footnotes":""},"categories":[1],"tags":[],"class_list":["post-7681","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-amazonia"],"_links":{"self":[{"href":"https:\/\/oca.eco.br\/en\/wp-json\/wp\/v2\/posts\/7681","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=7681"}],"version-history":[{"count":19,"href":"https:\/\/oca.eco.br\/en\/wp-json\/wp\/v2\/posts\/7681\/revisions"}],"predecessor-version":[{"id":7709,"href":"https:\/\/oca.eco.br\/en\/wp-json\/wp\/v2\/posts\/7681\/revisions\/7709"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/oca.eco.br\/en\/wp-json\/wp\/v2\/media\/7684"}],"wp:attachment":[{"href":"https:\/\/oca.eco.br\/en\/wp-json\/wp\/v2\/media?parent=7681"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/oca.eco.br\/en\/wp-json\/wp\/v2\/categories?post=7681"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/oca.eco.br\/en\/wp-json\/wp\/v2\/tags?post=7681"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}