{"id":1464,"date":"2016-01-20T13:21:47","date_gmt":"2016-01-20T03:21:47","guid":{"rendered":"http:\/\/nesptropical.edu.au\/?page_id=1464"},"modified":"2021-02-10T12:12:25","modified_gmt":"2021-02-10T02:12:25","slug":"project-2-1-5","status":"publish","type":"page","link":"https:\/\/nesptropical.edu.au\/index.php\/round-2-projects\/project-2-1-5\/","title":{"rendered":"Project 2.1.5"},"content":{"rendered":"<h3 id=\"page-title\" class=\"title\">What\u2019s really damaging the Reef? Tracing the origin and fate of the environmentally detrimental sediment<\/h3>\n<h5 class=\"title\"><span class=\"views-label views-label-title\"><a href=\"http:\/\/nesptropical.edu.au\/wp-content\/uploads\/2015\/08\/Stephen-Lewis-100dpi.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-686 size-thumbnail\" src=\"http:\/\/nesptropical.edu.au\/wp-content\/uploads\/2015\/08\/Stephen-Lewis-100dpi-150x150.jpg\" alt=\"Stephen Lewis\" width=\"150\" height=\"150\" srcset=\"https:\/\/nesptropical.edu.au\/wp-content\/uploads\/2015\/08\/Stephen-Lewis-100dpi-150x150.jpg 150w, https:\/\/nesptropical.edu.au\/wp-content\/uploads\/2015\/08\/Stephen-Lewis-100dpi-300x300.jpg 300w, https:\/\/nesptropical.edu.au\/wp-content\/uploads\/2015\/08\/Stephen-Lewis-100dpi-260x260.jpg 260w, https:\/\/nesptropical.edu.au\/wp-content\/uploads\/2015\/08\/Stephen-Lewis-100dpi.jpg 394w\" sizes=\"auto, (max-width: 150px) 100vw, 150px\" \/><\/a><\/span><\/h5>\n<h5 class=\"title\"><span class=\"views-label views-label-title\">Led by: <\/span><span class=\"field-content\">Dr Stephen Lewis, <\/span><span class=\"field-content\"><em>JCU<\/em><\/span><\/h5>\n<p>&nbsp;<\/p>\n<h5><strong>Project Summary<\/strong><\/h5>\n<p>Recent research has shown that only a portion of the fine sediment fraction delivered from rivers draining into the Great Barrier Reef Lagoon (GBRL) reaches coral reefs and seagrass meadows. The specific sources of this sediment, which affects the health of corals and seagrasses, are as yet unresolved. This project will, for the first time characterise and trace the origin(s) and fate of this environmentally detrimental sediment using samples collected in flood plumes and during resuspension events. This will enable direct spatial targeting of the sources of this material to achieve maximum benefits to GBR health from catchment management actions.<\/p>\n<p>&nbsp;<\/p>\n<h5><strong>Project Publications<\/strong><\/h5>\n<div class=\"row\"> <div class=\"col-md-2  \">\n<figure id=\"attachment_6277\" class=\"thumbnail wp-caption alignnone\" style=\"width: 106px\"><a href=\"http:\/\/bit.ly\/2J5gyF9\" target=\"_blank\" rel=\"noopener noreferrer\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-6277\" src=\"https:\/\/nesptropical.edu.au\/wp-content\/uploads\/2019\/04\/NESP-TWQ-Project-2.1.5-Final-Report-Cover-212x300.png\" alt=\"\" width=\"106\" height=\"150\" srcset=\"https:\/\/nesptropical.edu.au\/wp-content\/uploads\/2019\/04\/NESP-TWQ-Project-2.1.5-Final-Report-Cover-212x300.png 212w, https:\/\/nesptropical.edu.au\/wp-content\/uploads\/2019\/04\/NESP-TWQ-Project-2.1.5-Final-Report-Cover.png 394w\" sizes=\"auto, (max-width: 106px) 100vw, 106px\" \/><\/a><figcaption class=\"caption wp-caption-text\"><strong>Final Report<\/strong><\/figcaption><\/figure>\n<\/div><div class=\"col-md-2  \">\n<figure id=\"attachment_9626\" class=\"thumbnail wp-caption alignnone\" style=\"width: 106px\"><a href=\"http:\/\/bit.ly\/3p55MQx\" target=\"_blank\" rel=\"noopener\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-9626\" src=\"https:\/\/nesptropical.edu.au\/wp-content\/uploads\/2021\/02\/Bahadori-et-al.-2021-212x300.png\" alt=\"\" width=\"106\" height=\"150\" srcset=\"https:\/\/nesptropical.edu.au\/wp-content\/uploads\/2021\/02\/Bahadori-et-al.-2021-212x300.png 212w, https:\/\/nesptropical.edu.au\/wp-content\/uploads\/2021\/02\/Bahadori-et-al.-2021.png 394w\" sizes=\"auto, (max-width: 106px) 100vw, 106px\" \/><\/a><figcaption class=\"caption wp-caption-text\"><strong>Journal Article<\/strong><\/figcaption><\/figure>\n<\/div><div class=\"col-md-2  \">\n<figure id=\"attachment_5252\" class=\"thumbnail wp-caption alignnone\" style=\"width: 106px\"><a href=\"http:\/\/bit.ly\/2LIxwaE\" target=\"_blank\" rel=\"noopener noreferrer\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-5252\" src=\"http:\/\/nesptropical.edu.au\/wp-content\/uploads\/2018\/07\/Lewis-et-al.-2018-complete-212x300.png\" alt=\"\" width=\"106\" height=\"150\" srcset=\"https:\/\/nesptropical.edu.au\/wp-content\/uploads\/2018\/07\/Lewis-et-al.-2018-complete-212x300.png 212w, https:\/\/nesptropical.edu.au\/wp-content\/uploads\/2018\/07\/Lewis-et-al.-2018-complete.png 394w\" sizes=\"auto, (max-width: 106px) 100vw, 106px\" \/><\/a><figcaption class=\"caption wp-caption-text\"><strong>Journal Article<\/strong><\/figcaption><\/figure>\n<\/div><div class=\"col-md-2  \">\n<figure id=\"attachment_5438\" class=\"thumbnail wp-caption alignnone\" style=\"width: 106px\"><a href=\"http:\/\/bit.ly\/2Q9uZZ8\" target=\"_blank\" rel=\"noopener noreferrer\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-5438\" src=\"https:\/\/nesptropical.edu.au\/wp-content\/uploads\/2018\/09\/Bainbridge-et-al.-2018-212x300.png\" alt=\"\" width=\"106\" height=\"150\" srcset=\"https:\/\/nesptropical.edu.au\/wp-content\/uploads\/2018\/09\/Bainbridge-et-al.-2018-212x300.png 212w, https:\/\/nesptropical.edu.au\/wp-content\/uploads\/2018\/09\/Bainbridge-et-al.-2018.png 394w\" sizes=\"auto, (max-width: 106px) 100vw, 106px\" \/><\/a><figcaption class=\"caption wp-caption-text\"><strong>Journal Article<\/strong><\/figcaption><\/figure>\n<\/div><div class=\"col-md-2  \">\n<figure id=\"attachment_5591\" class=\"thumbnail wp-caption alignnone\" style=\"width: 106px\"><a href=\"http:\/\/bit.ly\/2SLqiWJ\" target=\"_blank\" rel=\"noopener noreferrer\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-5591\" src=\"https:\/\/nesptropical.edu.au\/wp-content\/uploads\/2018\/12\/Bahadori-et-al.-2019-212x300.png\" alt=\"\" width=\"106\" height=\"150\" srcset=\"https:\/\/nesptropical.edu.au\/wp-content\/uploads\/2018\/12\/Bahadori-et-al.-2019-212x300.png 212w, https:\/\/nesptropical.edu.au\/wp-content\/uploads\/2018\/12\/Bahadori-et-al.-2019.png 394w\" sizes=\"auto, (max-width: 106px) 100vw, 106px\" \/><\/a><figcaption class=\"caption wp-caption-text\"><strong>Journal Article<\/strong><\/figcaption><\/figure>\n<\/div><div class=\"col-md-2  \">\n<\/div><\/div>\n<div class=\"row\"> <div class=\"col-md-2  \">\n<figure id=\"attachment_9502\" class=\"thumbnail wp-caption alignnone\" style=\"width: 106px\"><a href=\"https:\/\/bit.ly\/3oAQTFG\" target=\"_blank\" rel=\"noopener\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-9502\" src=\"https:\/\/nesptropical.edu.au\/wp-content\/uploads\/2020\/12\/Bahadori-et-al.-2020-212x300.png\" alt=\"\" width=\"106\" height=\"150\" srcset=\"https:\/\/nesptropical.edu.au\/wp-content\/uploads\/2020\/12\/Bahadori-et-al.-2020-212x300.png 212w, https:\/\/nesptropical.edu.au\/wp-content\/uploads\/2020\/12\/Bahadori-et-al.-2020.png 394w\" sizes=\"auto, (max-width: 106px) 100vw, 106px\" \/><\/a><figcaption class=\"caption wp-caption-text\"><strong>Journal Article<\/strong><\/figcaption><\/figure>\n<\/div><div class=\"col-md-2  \">\n<figure id=\"attachment_6286\" class=\"thumbnail wp-caption alignnone\" style=\"width: 106px\"><a href=\"https:\/\/nesptropical.edu.au\/wp-content\/uploads\/2018\/03\/Water-Quality-scientists-track-flood-plume-heading-toward-Great-Barrier-Reef-after-north-Queensland-rains.pdf\" target=\"_blank\" rel=\"noopener noreferrer\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-6286\" src=\"https:\/\/nesptropical.edu.au\/wp-content\/uploads\/2019\/05\/Water-Quality-scientists-track-flood-plume-heading-toward-Great-Barrier-Reef-after-north-Queensland-rains-212x300.png\" alt=\"\" width=\"106\" height=\"150\" srcset=\"https:\/\/nesptropical.edu.au\/wp-content\/uploads\/2019\/05\/Water-Quality-scientists-track-flood-plume-heading-toward-Great-Barrier-Reef-after-north-Queensland-rains-212x300.png 212w, https:\/\/nesptropical.edu.au\/wp-content\/uploads\/2019\/05\/Water-Quality-scientists-track-flood-plume-heading-toward-Great-Barrier-Reef-after-north-Queensland-rains.png 394w\" sizes=\"auto, (max-width: 106px) 100vw, 106px\" \/><\/a><figcaption class=\"caption wp-caption-text\"><strong>Media Release<\/strong><\/figcaption><\/figure>\n<\/div><div class=\"col-md-2  \">\n<figure id=\"attachment_2578\" class=\"thumbnail wp-caption alignnone\" style=\"width: 106px\"><a href=\"http:\/\/bit.ly\/2qLxjMI\" target=\"_blank\" rel=\"noopener noreferrer\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-2578\" src=\"http:\/\/nesptropical.edu.au\/wp-content\/uploads\/2016\/10\/NESP-TWQ-Project-2.1.5-Factsheet-212x300.png\" alt=\"nesp-twq-project-2-1-5-factsheet\" width=\"106\" height=\"150\" srcset=\"https:\/\/nesptropical.edu.au\/wp-content\/uploads\/2016\/10\/NESP-TWQ-Project-2.1.5-Factsheet-212x300.png 212w, https:\/\/nesptropical.edu.au\/wp-content\/uploads\/2016\/10\/NESP-TWQ-Project-2.1.5-Factsheet.png 394w\" sizes=\"auto, (max-width: 106px) 100vw, 106px\" \/><\/a><figcaption class=\"caption wp-caption-text\"><strong>Factsheet<\/strong><\/figcaption><\/figure>\n<\/div><\/div>\n<p>&nbsp;<\/p>\n<h5><strong>Project Videos<\/strong><\/h5>\n<div class=\"row\"> <div class=\"col-md-5  \">\n<div class=\"kad-vimeo-shortcode  videofit\" style=\"max-width:400px;\"><iframe loading=\"lazy\" width=\"600\" height=\"400\" src=\"https:\/\/player.vimeo.com\/video\/341936402?title=0&amp;byline=0&amp;portrait=0&amp;color=ffffff\" frameborder=\"0\" allowfullscreen=\"true\"><\/iframe><\/div>\n<\/div><div class=\"col-md-5  \">\n<div class=\"kad-vimeo-shortcode  videofit\" style=\"max-width:400px;\"><iframe loading=\"lazy\" width=\"600\" height=\"400\" src=\"https:\/\/player.vimeo.com\/video\/341936282?title=0&amp;byline=0&amp;portrait=0&amp;color=ffffff\" frameborder=\"0\" allowfullscreen=\"true\"><\/iframe><\/div>\n<\/div><\/div>\n<p>&nbsp;<\/p>\n<h5><strong>Problem Statements<\/strong><\/h5>\n<p><strong>Problem<\/strong><\/p>\n<p>Recent research tracing the sources of sediments exported from the mouth of the larger rivers draining into the Great Barrier Reef Lagoon (GBRL) including the Burdekin, Normanby, Fitzroy, Johnstone and Herbert Rivers, have identified both the dominant erosion processes and sources of the sediment. This work has provided important knowledge on specific areas contributing higher sediment yields; however the transport, fate and impacts of recently delivered catchment sediments within the GBRL have received less attention. The available data show that most (&gt;80%) of the sediment load from rivers is deposited and largely retained near the river mouth with a much smaller proportion transported further afield; this sediment fraction has certain properties (i.e. particle size, clay mineralogy, organic content) which allow it to be transported greater distances in the marine environment where it can reach coral reefs and seagrass meadows. Furthermore this sediment is likely to be more easily resuspended and influence water clarity along the inner shelf of the GBR over both short (flood plume) and longer (months following plume) timeframes. Unfortunately, little data exist on this \u2018environmentally detrimental sediment\u2019 and its within-catchment origin is unknown. If its origin were known targeted catchment works could be used to reduce these specific sediment sources.<\/p>\n<p><strong>How Research Addresses Problem<\/strong><\/p>\n<p>We will characterise the physical, biogeochemical and isotopic composition of suspended sediment samples from flood plumes and resuspension events. This characterisation will Alignment with NESP Research Priorities enable us to trace the within-catchment source of the sediments and give insight into the various sediment and nutrient transformations that occur as fine clay-sized sediment moves from \u2018catchment to reef\u2019. This project will test our hypothesis that the composition of newly delivered clay-sized sediment to the GBRL changes during transport, deposition and resuspension, with increasing importance of the biological component. Newly designed sediment traps that for the first time allow for collection of sediment in resuspension events will be utilised. Particle size, clay mineralogy, biogeochemical and isotopic characteristics of the analysed samples will be used to identify the \u2018most environmentally detrimental sediment\u2019 in terms of transportability and nutrient bioavailability. The organic component of the floc aggregates will also be characterised to determine if they are of catchment or marine origin and how they change during successive resuspension events. Combined with existing sediment tracing data from the catchments, this new information will then be used to identify the origin of this problematic sediment so that catchment management priorities can be further refined. In addition to providing critical information for targeting catchment sources of environmentally detrimental sediment, this work also has significant applicability to port management and dredging as it examines the changing sedimentary nature of resuspension events throughout the year<\/p>\n<p><strong>Alignment with NESP Research Priorities<\/strong><\/p>\n<p>1b) Determining the source and marine fate of environmentally relevant sediments.<\/p>\n<p>1a) Local scale identification of priority contaminant export loss (hot spots) for better targeting of on-ground works and extension activity.<\/p>\n<p>4b) Quantify sediment transport pathways and water quality over relevant timeframes to better understand interactions with, and contributions to, the broader catchment inputs within the GBR.<\/p>\n<p>&nbsp;<\/p>\n<h5><strong>Project Keywords<\/strong><\/h5>\n<p>Sediment floc aggregates; Sediment tracing; Resuspension; Turbidity; Flood plume.<\/p>\n<p>&nbsp;<\/p>\n<h5><strong>Project Funding<\/strong><\/h5>\n<p>This project is jointly funded through JCU, GU, DEHP, DSITI and the Australian Government\u2019s National Environmental Science Programme.<\/p>\n<p>&nbsp;<\/p>\n<h5><strong>Project Map<\/strong><\/h5>\n<div class=\"row\"> <div class=\"col-md-6  \">\n\r\n            \r\n            \r\n            \r\n            <a name='map11'><\/a>\r\n            \r\n            \r\n            \r\n            \r\n\r\n            <div class=\"wpgmza_map\" id=\"wpgmza_map_11\" style=\"display:block; overflow:auto; width:100%; height:200px; float:left;\"> <\/div>\r\n            \r\n            \r\n            \r\n\r\n<div style=\"display:block; width:100%;\">\r\n\t\r\n\t\r\n\t\r\n\t<div id=\"wpgmaps_directions_notification_11\" style=\"display:none;\">Fetching directions......<\/div>\r\n\t\r\n\t<div id=\"wpgmaps_directions_reset_11\" style=\"display:none;\">\r\n\t\t<a href='javascript:void(0)' onclick='wpgmza_reset_directions(11);' id='wpgmaps_reset_directions' title='Reset directions'>Reset directions<\/a>\r\n\t\t<br \/>\r\n\t\t<a href='' id='wpgmaps_print_directions_11' title='Print directions'>Print directions<\/a>\r\n\t<\/div>\r\n\t\r\n\t<div id=\"directions_panel_11\"><\/div>\r\n\r\n<\/div>\r\n\r\n        \n<p><strong>Click on a marker for larger map<\/strong><\/div>\n<div class=\"col-md-6  \"><\/div><\/div>\n<div class=\"row\"> <div class=\"col-md-6  \">\n<p><strong>Markers are not an exact position of where the research is taking place, they are only to be used as a guide to the general area in which it is being carried out.<\/strong><br \/>\n<div class=\"col-md-6  \"><\/div><\/div><\/div>\n<p>&nbsp;<\/p>\n<h5><strong><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-6635\" src=\"https:\/\/nesptropical.edu.au\/wp-content\/uploads\/2019\/07\/eatlas-front-logo-300x126.png\" alt=\"\" width=\"200\" height=\"84\" srcset=\"https:\/\/nesptropical.edu.au\/wp-content\/uploads\/2019\/07\/eatlas-front-logo-300x126.png 300w, https:\/\/nesptropical.edu.au\/wp-content\/uploads\/2019\/07\/eatlas-front-logo.png 341w\" sizes=\"auto, (max-width: 200px) 100vw, 200px\" \/><\/strong><\/h5>\n<p><a href=\"https:\/\/eatlas.org.au\/nesp-twq-2\/origin-detrimental-sediment-2-1-5\" target=\"_blank\" rel=\"noopener noreferrer\">https:\/\/eatlas.org.au\/nesp-twq-2\/origin-detrimental-sediment-2-1-5<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>What\u2019s really damaging the Reef? Tracing the origin and fate of the environmentally detrimental sediment Led by: Dr Stephen Lewis, JCU &nbsp; Project Summary Recent research has shown that only &hellip; <a class=\"kt-excerpt-readmore\" href=\"https:\/\/nesptropical.edu.au\/index.php\/round-2-projects\/project-2-1-5\/\" aria-label=\"Project 2.1.5\">Read More<\/a><\/p>\n","protected":false},"author":1,"featured_media":686,"parent":1345,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"om_disable_all_campaigns":false,"footnotes":""},"class_list":["post-1464","page","type-page","status-publish","has-post-thumbnail","hentry"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/nesptropical.edu.au\/index.php\/wp-json\/wp\/v2\/pages\/1464","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/nesptropical.edu.au\/index.php\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/nesptropical.edu.au\/index.php\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/nesptropical.edu.au\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/nesptropical.edu.au\/index.php\/wp-json\/wp\/v2\/comments?post=1464"}],"version-history":[{"count":0,"href":"https:\/\/nesptropical.edu.au\/index.php\/wp-json\/wp\/v2\/pages\/1464\/revisions"}],"up":[{"embeddable":true,"href":"https:\/\/nesptropical.edu.au\/index.php\/wp-json\/wp\/v2\/pages\/1345"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/nesptropical.edu.au\/index.php\/wp-json\/wp\/v2\/media\/686"}],"wp:attachment":[{"href":"https:\/\/nesptropical.edu.au\/index.php\/wp-json\/wp\/v2\/media?parent=1464"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}