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Intertidal Monitoring

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  1. Intertidal Monitoring Sitka National Historical Park Southeast Alaska Network Inventory and Monitoring Program

  2. Justification • Intertidal areas are diverse, biologically sensitive habitats vulnerable to disturbance. • Fuel spills and boat groundings are constant threats. Trampling from high visitor use affects some areas (SITK). Southeast Alaska Network Inventory and Monitoring Program

  3. Objective • Determine the changes over time of species composition and distribution • Identify those caused by anthropogenic activity Southeast Alaska Network Inventory and Monitoring Program

  4. Sitka Intertidal Southeast Alaska Network Inventory and Monitoring Program May 6, 2009

  5. Technical Approach • Evolution from VS to Repeat Inventory • High power for few, most common species • High natural variability • Informed by monitoring report and expert input Southeast Alaska Network Inventory and Monitoring Program

  6. Logistics and Budget • $20K in FY12 to establish agreement • Design and implement first iteration • Sci.comm products • Periodic (10 years?) need for experts to assist with inventory Southeast Alaska Network Inventory and Monitoring Program

  7. What we’re learning • Power to detect trend is high for barnacles, Fucus, and Littorinasnails. • Mobile and rare organisms under-represented • Random transects confound trend detection • Inventory will concentrate on presence/ND; algae, rare species Southeast Alaska Network Inventory and Monitoring Program

  8. Program Delivery Potential Inventory Products Species list, ID sheet Signage Southeast Alaska Network Inventory and Monitoring Program May 6, 2009

  9. brendan_moynahan@nps.gov 907.364.2621 Southeast Alaska Network Inventory and Monitoring Program