1 / 11

NATIONAL RIVERS AND STREAMS ASSESSMENT PROJECT

NATIONAL RIVERS AND STREAMS ASSESSMENT PROJECT. 2008–2009 Update 2013–2014 ORSANCO Involvement. The National Rivers and Streams Assessment. Purpose: to generate statistically-valid and environmentally relevant reports on the condition of the Nation’s water resources. Core questions:

tacy
Download Presentation

NATIONAL RIVERS AND STREAMS ASSESSMENT PROJECT

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. NATIONAL RIVERS AND STREAMS ASSESSMENT PROJECT 2008–2009 Update 2013–2014 ORSANCO Involvement The National Rivers and Streams Assessment

  2. Purpose: to generate statistically-valid and environmentally relevant reports on the condition of the Nation’s water resources

  3. Core questions: 1) What is the current condition of the nation’s rivers and streams as reported? • Nationally for all targeted population (perennial streams through Great Rivers) • Regionally 2) Which stressors are contributing the most to the degradation of river and stream condition?

  4. ORSANCO INVOLVEMENT 9 sites completed between August and September 2008 on the mainstem Ohio River with two additional revisits for a total of 11 sampling events. 13 sites and 3 revisits (16 total events) completed between May and September 2009 on smaller streams and tributaries to the mainstem Ohio River.

  5. 2008 / 2009 NRSA ResultsRegional Scales Biological Condition ratings determined by multimetric indices (MMIs) for fish, periphyton and macroinvertebrates. Reference conditions were established using screened least disturbed sites. Water chemistry data were compared to thresholds used in the WSA (2004). Human Health indicators were compared to EPA thresholds.

  6. Biological condition of the nation's rivers and streams (USEPA/NRSA).

  7. Fish MMI, Habitat results

  8. Periphyton MMI results

  9. Macroinvertebrate MMI results

  10. NRSA 2013 - 2014 The opportunity to participate in the 2013 - 2014 NRSA project has been offered to ORSANCO. This could include sampling up to 31 sites within the Ohio River Basin over the course of the next two years. The National Rivers and Streams Assessment

  11. NRSA 2013 - 2014 ORSANCO Biologists will sample 10 boatable Ohio River Basin sites in Spring 2013, and hire a contract crew leader in July 2013 using surplus funds earned by the project. The contract biologist will then sample the remaining 21 boatable sites in the Ohio River Basin by September 2014.

More Related