{"id":1954,"date":"2023-11-01T20:46:53","date_gmt":"2023-11-01T20:46:53","guid":{"rendered":"https:\/\/live-usc-dornsife.pantheonsite.io\/uscseagrant\/?page_id=1954"},"modified":"2023-11-17T00:11:10","modified_gmt":"2023-11-17T00:11:10","slug":"bringing-back-oysters","status":"publish","type":"page","link":"https:\/\/dornsife.usc.edu\/uscseagrant\/bringing-back-oysters\/","title":{"rendered":"Bringing Back Oysters"},"content":{"rendered":"\n\n\n\n\n  \n    \n\n\n\n\n\n\n<div\n  class=\"cc--component-container cc--accordions \"\n\n  \n  \n  \n  \n  \n  \n  >\n  <div class=\"c--component c--accordions\"\n    \n      >\n\n    \n      <div class=\"header-container\">\n\n                  \n<div class=\"f--field f--section-title\">\n\n    \n  <h2>\n          Examining the effects of pollutants on oysters to inform estuary restoration efforts \n      <\/h2>\n\n\n<\/div>\n      \n                  \n<div class=\"f--field f--description\">\n\n    \n  <p><span style=\"font-weight: 400;\">In California, only 10% of estuaries remain, and they are often degraded near urbanized areas such as Upper Newport Bay (UNB), a 1000-acre estuary south of Los Angeles. Oysters are an ecologically and economically important species, and understanding whether contaminants in these estuaries further impact oyster species can increase knowledge of oyster population health as well as risks of consumption. University of Southern California (USC) Sea Grant funded a study to inform future restoration efforts for the native Olympia Oyster. Using four UNB study sites, researchers evaluated the presence of pollutants in oysters and nearby sediment and assessed differentially expressed genes in response to pollution stress.\u00a0<\/span><\/p>\n\n\n\n<\/div>\n      \n      \n    <\/div>\n  \n  \n  \n\n  <\/div><\/div>\n\n\n\n\n  \n    \n\n\n\n\n\n\n<div\n  class=\"cc--component-container cc--rich-text \"\n\n  \n  \n  \n  \n  \n  \n  >\n  <div class=\"c--component c--rich-text\"\n    \n      >\n\n    \n      \n<div class=\"f--field f--wysiwyg\">\n\n    \n  <h3><b>Key Results<\/b><span style=\"font-weight: 400;\">:<\/span><\/h3>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Types and concentrations of pollutants in native Olympia oyster and non-native Pacific oyster tissues vary by estuary\u00a0<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">The greatest concentration of pollutants was organochlorine pesticides and paralleled the concentrations in nearby sediments<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Conversely, there were often differences in the metal concentrations detected in oysters relative to the sediment collected in the same estuary.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Extremely high levels of PCBs were observed in oysters and sediment in San Diego Bay; levels of copper detected in the sediment from Alamitos Bay and San Diego Bay exceeded toxicity thresholds for benthic communities.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Findings support research that the non-native Pacific oyster species is more tolerant to stressors.\u00a0<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Both oyster species show differential expression of toxicology-specific biomarkers corresponding to increased contaminant burdens at a specific site.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">One of the first studies to develop and utilize genomic tools for the native Olympia oyster, fostering a better understanding of its biology and its response to environmental stressors beyond the laboratory<\/span><\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<h3><b>Project Impacts &amp; Application:<\/b><\/h3>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Will help inform consumption advisories for shellfish in Aqua Hedionda and San Diego Bay estuaries\u00a0<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Will inform ongoing and future Olympia oyster restoration efforts regarding the environmental parameters and potential stressors at proposed restoration sites\u00a0<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Provided presentations at the Society of Environmental Toxicology and Chemistry Annual Meeting; University of California Santa Barbara Restoration Ecology class; and World Wetlands Day with the Upper Newport Bay Conservancy<\/span><\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<h3><b>Principal Investigators<\/b><span style=\"font-weight: 400;\">:\u00a0<\/span><\/h3>\n<p><span style=\"font-weight: 400;\">Erika Holland, Ph.D., California State University, Long Beach\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Christine Whitcraft, Ph.D., California State University, Long Beach<\/span><\/p>\n<p>&nbsp;<\/p>\n<h3><b>Funding: <\/b><\/h3>\n<p><span style=\"font-weight: 400;\">NOAA, 2018-2020<\/span><\/p>\n<p>&nbsp;<\/p>\n<h3><b>Additional Info<\/b><span style=\"font-weight: 400;\">:\u00a0<\/span><\/h3>\n<ul>\n<li><a href=\"https:\/\/www.holland-toxlab.com\/\"><span style=\"font-weight: 400;\">https:\/\/www.holland-toxlab.com\/<\/span><\/a><\/li>\n<li><a href=\"http:\/\/web.csulb.edu\/~cwhitcra\/research.html\"><span style=\"font-weight: 400;\">http:\/\/web.csulb.edu\/~cwhitcra\/research.html<\/span><\/a><\/li>\n<\/ul>\n<p><a class=\"cta-link\" href=\"\/uscseagrant\/publications-database\/\">Access our Publications Database to view publications from this project or other related topics<\/a><\/p>\n\n\n\n<\/div>\n\n\n  <\/div><\/div>\n\n\n\n\n                \n  \n    \n\n\n\n\n\n\n<div\n  class=\"cc--component-container cc--photo-wall \"\n\n  \n  \n  \n  \n  \n  \n  >\n  <div class=\"c--component c--photo-wall\"\n    \n      >\n\n    \n      <div class=\"heading-container\">\n                  \n<div class=\"f--field f--section-title\">\n\n    \n  <h2>\n          Project Images\n      <\/h2>\n\n\n<\/div>\n      \n          <\/div>\n  \n  <div class=\"photos-container\">\n\n    \n    <div class=\"grid-sizer\"><\/div>\n    <div class=\"gutter-sizer\"><\/div>\n\n      \n                                  \n                <div class=\"photo\">\n\n            \n                \n<div class=\"f--field f--image\">\n\n    \n    \n    \n    \n    \n    \n              \n      <img decoding=\"async\"\n                            src=\"https:\/\/dornsife.usc.edu\/uscseagrant\/wp-content\/uploads\/sites\/52\/2023\/11\/Funded-Research_Bringing-Back-Oysters_Image-1-e1698875774134-540x0-c-default.png\"\n                    \n        \n                  alt=\"Google Earth Image of Upper Newport Bay with project's area of treatment pointed out.\"\n        \n        \n                                      \/>\n\n    \n    \n  \n  \n\n<\/div>\n\n                          <a href=\"#photo-1957122738\" class=\"photo-trigger\" aria-label=\"Expand to view image and text\">\n                <svg version=\"1.1\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" xmlns:xlink=\"http:\/\/www.w3.org\/1999\/xlink\" x=\"0px\" y=\"0px\" viewBox=\"0 0 35 35\" enable-background=\"new 0 0 35 35\" xml:space=\"preserve\"><path fill-rule=\"evenodd\" clip-rule=\"evenodd\" fill=\"#000000\" d=\"M28,7v7.9h-2.6l0-3.4l-4.3,4.3c-0.3,0.3-0.6,0.4-0.9,0.4s-0.7-0.1-0.9-0.4c-0.5-0.5-0.5-1.3,0-1.9l4.3-4.3h-3.4V7H28z M7,28v-7.9h2.6v3.4l4.3-4.3c0.5-0.5,1.3-0.5,1.9,0c0.5,0.5,0.5,1.3,0,1.9l-4.3,4.3h3.4V28H7z\"\/><\/svg>\n              <\/a>\n                      <\/div>\n                <div class=\"photo\">\n\n            \n                \n<div class=\"f--field f--image\">\n\n    \n    \n    \n    \n    \n    \n              \n      <img decoding=\"async\"\n                            src=\"https:\/\/dornsife.usc.edu\/uscseagrant\/wp-content\/uploads\/sites\/52\/2023\/11\/Screen-Shot-2023-11-16-at-4.09.39-PM-540x0-c-default.png\"\n                    \n        \n                  alt=\"Researcher in the field analyzing oysters out of the water.\"\n        \n        \n                                      \/>\n\n    \n    \n  \n  \n\n<\/div>\n\n                      <\/div>\n      \n      <\/div>\n\n            <div id=\"photo-1957122738\" class=\"photo-lightbox lity-hide\">\n        <div class=\"text-container\">\n          \n                          \n<div class=\"f--field f--description\">\n\n    \n  <p>Living shoreline sites (red) in Upper Newport Bay, Newport Beach, CA, located south of Los Angeles, CA. Sites include Pacific Coastal Highway (PCH), Westcliff (WC), De Anza (DA), and Shellmaker (SM). At each site, one plot of each treatment of interest to the current proposal will be represented (i.e. oyster bed; oyster near eelgrass bed).<\/p>\n\n\n\n<\/div>\n          \n                  <\/div>\n\n        \n            \n<div class=\"f--field f--image\">\n\n    \n    \n    \n    \n    \n    \n              \n      <img decoding=\"async\"\n                            src=\"https:\/\/dornsife.usc.edu\/uscseagrant\/wp-content\/uploads\/sites\/52\/2023\/11\/Funded-Research_Bringing-Back-Oysters_Image-1-e1698875774134-1080x0-c-default.png\"\n                    \n        \n                  alt=\"Google Earth Image of Upper Newport Bay with project's area of treatment pointed out.\"\n        \n        \n                                      \/>\n\n    \n    \n  \n  \n\n<\/div>\n\n      <\/div>\n            \n\n  <\/div><\/div>\n","protected":false},"excerpt":{"rendered":"","protected":false},"author":74,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"page-content-detail.php","meta":{"_acf_changed":false,"footnotes":""},"class_list":["post-1954","page","type-page","status-publish","hentry"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.1.1 - 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