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NOAA/NSTA Web Seminar: Coral Ecosystems: Land-based Pollution Threats to Coral Reefs LIVE INTERACTIVE LEARNING @ YOUR DESKTOP Thursday, May 8, 2008
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Land-based Pollution Threats to Coral Reefs Presented by Kathy Chaston Coral & Coastal Management Specialist NOAA’s National Ocean Service Office of Ocean & Coastal Resource Management
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Outline Coral biology Value of coral reefs Land-based pollution impacts Management actions Teaching resources
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Outline Coral biology Value of coral reefs Land-based pollution impacts Management actions Teaching resources
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What is coral? Plant Animal Both?
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Coral is as an animal with an algal symbiont Source: NOAA
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Reef building corals require: Warm water: 75 – 85 Fahrenheit degrees Light: Shallow and sediment free waters Salinity: 34 – 37 ppt PCS
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Coral reef distribution Source: http://oceanservice.noaa.gov/education/kits/corals/media/supp_coral05a.html
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Let’s pause for 2 questions
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Outline Coral biology Value of coral reefs Known effects of land- based pollution Management actions Teaching resources
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Coral reefs are valuable Biodiversity Fisheries Shoreline protection Pharmaceuticals Tourism Education Culture Social values
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Coral reefs: rainforests of the sea How many species of fish live on reefs? A. 40 B. 400 C. 4000 PCS
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Coral reefs protect the shore-line
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Reefs are important economically Hawaii: Net benefits = $360 million year Overall asset value MHI = $10 billion Study by: Cesar & van Beukering 2004
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Many threats to Coral Reefs Key threats to US reefs: Over-fishing Land-based sources of pollution Recreational overuse/misuse Lack of public awareness Climate change & coral bleaching Disease Key threats to US reefs: Over-fishing Land-based sources of pollution Recreational overuse/misuse Lack of public awareness Climate change & coral bleaching Disease
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Let’s pause for 2 questions
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Outline Coral biology Value of coral reefs Land-based pollution impacts Management actions Teaching resources
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Land and sea are connected
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Photo’s courtesy of Malama Maunalua
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Many sources of land-based pollution
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Models estimate that 22% of all coral reefs world-wide are at high or medium threat from inland pollution and soil erosion. (Bryant et al. 1998). USGS Runoff threatens coral reefs globally
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Runoff impacts growth & survival of hard coral colonies Bill Walsh DAR
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Any idea’s how runoff impacts coral growth and survival? Two volunteers? 1. 2.
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Sediments reduce light and decrease coral growth
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Sediments smother coral & sloughing wastes energy Photo’s courtesy of Bill Walsh
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Runoff effects coral reproduction & recruitment Coral settlement rates are near zero on sediment covered surfaces Sediment tolerance is lower in new recruits
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Honolua Bay, Maui Runoff effects reef community structure
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Let’s pause for 2 questions
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Outline Coral biology Value of coral reefs Land-based pollution impacts Management actions Teaching resources
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Managing land-based pollution US Coral Reef Task Force formed Addressing key threats to reefs is a national priority Development of local action strategies More information: http://coralreef.gov
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Hawaii’s Local Action Strategy: A collaborative multi-agency and community approach to protect Hawaii’s coral reefs Sustainable Living Institute of Maui
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Taking action to: Reduce pollutant loads Increase understanding through scientific research & monitoring Increase awareness
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Outline Coral biology Value of coral reefs Known effects of land- based pollution Management actions Teaching resources
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Lesson Plans & Curriculum http://www.oceanservice.noaa.gov/education
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http://www.hawaiireef.net/teachers/teachers.shtml
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http://www.hawaiianatolls.org/teachers/NavChange.php
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http://www.epa.gov/adopt/resources/
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Activities http://www.sanctuaries.noaa.gov/education/ocean_guardian/welcome.html
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Educational materials International Year of the Reef http://www.iyor.org
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Other educational materials available from NOAA and NSTA Science Objects (4): Coral Reef Ecosystems Web Seminar Archives (2): Today’s and April 10’s SciPack: Coral Reef Ecosystems SciGuide: Coral Ecosystems Journal Articles http://learningcenter.nsta.org
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Funding NOAA Bay Watershed Education and Training (B-WET) Program was established in 2002 to create environmentally literate students and teachers through education. http://www.csc.noaa.gov/psc/bwet.html http://www.sanctuaries.noaa.gov/news/bw et/welcome.htmlhttp://www.sanctuaries.noaa.gov/news/bw et/welcome.html
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Thank you
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NASA logo Thanks to our presenter, Kathy Chaston and to NOAA for sponsoring this program
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http://www.elluminate.com Elluminate logo
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http://learningcenter.nsta.org NLC screenshot
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National Science Teachers Association Gerry Wheeler, Executive Director Frank Owens, Associate Executive Director Conferences and Programs Al Byers, Assistant Executive Director e-Learning LIVE INTERACTIVE LEARNING @ YOUR DESKTOP NSTA Web Seminars Flavio Mendez, Director Jeff Layman, Technical Coordinator
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